electric heating products

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1 electric heating products explosion-proof unit heater explosion-proof convector washdown/corrosion resistant unit heater industrial unit heater wall heater unit heater convector heater cabinet heater ceiling heater baseboard heater wall heater radiant panel commercial & industrial electric heating and controls

2 INTRODUCTION HEATREX offers commercial and industrial electric heating and control systems that set the industry standard for excellence. The company s heating solutions reflect more than 80 years of innovation, product quality and efficient service. This catalog features HEATREX s complete Space Heating line. Our products include Explosion-proof an explosion-proof convector; the Washdown/Corrosion Resistant Unit Heater; and several types of standard unit heaters. HEATREX s line of Comfort Heating Products cover a wide range of commercial and industrial applications. Whether the requirement is for architectural wall heaters, cabinet unit heaters, convector heaters or ceiling heaters, HEATREX has a product to match the application. HEATREX s quality is matched only by its customer service and support. With its quick-ship delivery program, HEATREX provides the products you need.

3 Advantages/Applications 2 Use of Electric Heaters in Hazardous Locations 3-5 Comparison Chart 6-7 Explosion-proof Unit Heaters 233 Series Explosion-proof Unit Heaters Series Compact Explosion-proof Unit Heaters Series Convector Fan Forced Heaters Comparison Chart Series Washdown/Corrosion Resistant Unit Heaters Series Industrial Unit Heater Series Unit Heater Series Unit Heater Series Economical Unit Heater Series Vertical Unit Heater Table of Contents 922 Series Cabinet Unit Heater /937 Series Commercial Ceiling Heater Series Commercial Ceiling Heater Series Toe-Space Heater Series Floor Insert Heater 67 Baseboard and Convector Heaters Comparison Chart Series Commercial Baseboard Heater 904/906 Series Architectural Sill-Height Convector 905/907 Series Industrial Sill-Height Convector /909 Series Architectural Convector Series Mini Draft Barrier Heater Series High Watt Density Draft Barrier Heater Series Portable Heater 41 Wall, Ceiling and Floor Heaters Comparison Chart /912 Series Architectural Cabinet Convector Radiant Panels Series Architectural Wall Heater Series Commercial Wall Heater Series European Wall Heater 50 AS Series Cove Heater Thermostats Series Hybrid Convection & Forced- Air Wall Heater 51 Limited Warranty Series Wall Heater Color Section Chart Inside Back Cover 930 Series Register Wall Heater

4 Advantages/Applications Experience This catalog represents 80 years of experience in industrial electric heating our specialty since HEATREX was founded in HEATREX has been manufacturing products for use in hazardous locations for over 55 years. Complete Product Line HEATREX offers the industry s most comprehensive line of space heating equipment. Explosion-proof unit heaters are available with ratings up to 30 kw and 600 volts. 234 Series unit heaters provide heat in nonhazardous environments where moisture and corrosion are present. Standard unit heaters include a heavy duty industrial model, several commercial models, vertical, cabinet and portable designs. A wide range of floor, wall and ceiling heaters, including baseboard heaters and radiant ceiling panels, are available to meet any application requirement. HEATREX also offers the widest selection of built-in controls in the industry. Quick Delivery A wide selection of assembly stock designs with options are available in two weeks. Most comfort heating products will ship in two weeks. Colors Many of HEATREX s comfort heating products are available in a choice of colors. Standard and special colors are shown in the back of this catalog. Custom colors, including bronze or clear anodizing and matches to customer supplied paint samples, are also available on select heaters. Safety American Bureau of Shipping HEATREX explosion-proof unit heaters are Factory Mutual (FM) Approved and include redundant overtemperature protection which exceeds agency requirements. The 233 Series unit heater has the industry s lowest Ignition Temperature Code rating, 320 F (160 C), and is also CSA Approved. HEATREX corrosion resistant heaters are available with culus Approvals. Explosion-proof and corrosion resistant heater designs are available for marine and shipboard use that are ABS Approved and meet U.S. Coast Guard requirements. HEATREX commercial and industrial unit heaters are UL and cul Approved for non-hazardous, non-corrosive environments. Comfort heating products are CSAus or CSA Approved. Hazardous and Corrosive Area Applications Aircraft Hangars/Service Areas Battery Storage Areas Chemical Plants Chemical Storage/Handling Areas Coal Mines/Preparation Plants Control Rooms Dry Cleaning Plants Dusty Areas Subject to Washdown Food Processing Plants (Washdown Areas) Industrial and Commercial Applications Basements Classrooms Conference Rooms Entryways/Hallways Factories Lobbies Foundries Gasoline Fueling/Storage Areas Grain Elevators Hydrogen Atmospheres Marine/Shipboard and Landbase Facilities Natural Gas (Methane) Atmospheres Oil Refineries Offshore Drilling Rigs Paint Spraying/Storage Areas Mechanical Rooms Offices Power Generating Stations Pump Houses Restrooms Service Stations/Garages Parking Garages Petrochemical Plants Pipeline Pumping Stations Pulp and Paper Mills Sewage/Wastewater Treatment Plants Solvent Recovery/ Storage Areas Utility Plants Shipping and Receiving Areas Stairwells Storage Areas Vestibules Warehouses Workshops 2

5 Use of Electric Heaters In Hazardous Locations Introduction Hazardous locations are those areas where a potential for explosion and fire exists due to the presence of flammable gases, vapors, pulverized dusts or ignitable fibers in the atmosphere. Hazardous locations are created from the normal processing of volatile chemicals, gases, coal, grains, etc., or from the accidental failure of storage systems for these materials. Open flames are not permitted in these locations. The use of electric heating equipment is permitted with two major restrictions: 1) The surface temperature of the equipment cannot exceed the ignition temperature of the hazardous atmosphere and 2) all arc and spark producing devices must be isolated from the atmosphere in an appropriate enclosure. Both people and equipment in hazardous locations can be heated safely and economically with electric heat. Electric heating is typically much less expensive to install and maintain than comparable remote oil or gas fired heating systems. National Electrical Code Classification Articles 500 through 516 of the National Electrical Code deal with the definition of hazardous areas and the use or design of electrical equipment used in these locations. Electric heating equipment for hazardous areas is specified based on the NEC class, division, group and ignition temperature or the alternate class and zone classification. Class Hazardous locations are divided into the three general classes of vapors/gases, dusts and fibers. Class I Locations where the potential for explosion and fire exists due to the presence of flammable gases or vapors in the air. Typical Class I locations include oil or natural gas drilling rigs, petroleum refining or pumping facilities, petrochemical plants, wastewater/sewage treatment plants, solvent extraction plants, paint spraying booths, locations where open tanks or vats of combustible liquids are present and storage areas for flammable materials. Class II Locations where the potential for explosion exists because of finely pulverized flammable dusts suspended in the atmosphere. Typical locations would include coal fired power plants, coal preparation/coal handling facilities, coal mines, grain elevators, flour and feed mills, packaging and handling of pulverized sugar and processing and storage of magnesium and aluminum powder. Class III This third classification is primarily a fire hazard where fibers or flyings suspended in the air create a hazard. This would include small pieces of thread-like fiber, sawdust, lint, etc. Typical applications would include textile mills, woodworking plants, cotton gins, cotton seed mills and flax producing plants. Division Class I, Class II and Class III areas are further defined in terms of when the hazard occurs. Division 1 and Division 2 occurrences are summarized below. Division 1 If the hazard is expected to be present under normal conditions, such as a production or processing facility, the occurrence is designated Division 1. The hazardous atmosphere may be present continuously, intermittently, periodically, or during normal repair or maintenance operations. Division 1 occurrences also include locations where a breakdown in the operation of processing equipment results in the release of hazardous vapors. Division 2 If the hazardous material is normally expected to be contained within a closed area, system or container, and would enter the ambient atmosphere only under an abnormal failure, then it is referred to as a Division 2 occurrence. 3

6 Use of Electric Heaters In Hazardous Locations Group The nature and explosive characteristics of the hazardous material are defined by the NEC group to which it is assigned. Class I Hazardous vapors/gas locations include chemicals and other materials that have been divided into four groups based on their ignition temperature and explosive characteristics. (Groups A, B, C and D) Class II Hazardous dust locations are divided into three groups based on their ignition temperature and electrical conductivity of the suspended particles. Group E Atmospheres containing metal dust, such as aluminum or magnesium. Group F Atmospheres containing coal, charcoal or coke dust. Group G Atmospheres with grain, flour, starch, combustible plastics or chemical dust. Class III Locations have no group definitions. Class and Zone Classifications Ignition Temperature All electrical equipment is designed not to exceed the ignition temperature of the hazardous atmosphere. The maximum surface temperature for electric heaters is defined by the NEC. Class I, Zone 0 Locations in which ignitable concentrations of flammable gases or vapors are present continuously or for long periods. Class I, Zone 1 Locations in which ignitable concentrations of flammable gases or vapors are likely to exist, may exist frequently or exist as a result of equipment breakdown or faulty operation. Applies to locations adjacent to a Class I, Zone 0 location. Class I, Zone 2 Locations in which ignitable concentrations of flammable gases or vapors are not likely to occur under normal operation, exist only for a short period or exist only as a result of accidental failure, such as rupture or breakdown of the container or system, abnormal operation of equipment, failure or abnormal operation of the ventilation equipment. Applies to locations adjacent to a Class I, Zone 1 location. Material Groups Group IIC Atmospheres containing acetylene or hydrogen. Equivalent to a combination of Class I, Group A and Class I, Group B as described in NEC Article 500. Group IIB Atmospheres containing acetaldehyde. Equivalent to Class I, Group C as described in NEC Article 500. Group IIA Atmospheres containing acetone, ammonia, ethyl alcohol, gasoline, methane or propane. Equivalent to Class I, Group D as described in NEC Article 500. Maximum Surface Temperature of Heater F C NEC Ignition Temperature Code T T T2A T2B T2C T2D T T3A T3B 4

7 Use of Electric Heaters In Hazardous Locations Special Requirements for Electric Heating Equipment used in Hazardous Areas Electric heating equipment can be economically designed and safely used in hazardous areas if the following special requirements are observed. 1. The surface temperature of the electric heating equipment cannot exceed the ignition temperature of the hazardous atmosphere. To insure that the proper heater has been selected, it is essential that the correct NEC Ignition Temperature Code be specified. If the temperature code selected is too high, the electric heating system may operate above the ignition point of the application, creating a potentially hazardous condition. 2. All arc and spark-producing control devices must be isolated from the hazardous atmosphere. If it is not economically feasible to locate the control devices in the non-hazardous area, they must be housed in an enclosure that will withstand the pressure of a potential explosion from within the enclosure. 3. All electrical supply connections must be made according to the latest NEC and local code requirements for hazardous locations. This includes the requirement that conduit entering the enclosures must be provided with seals at the enclosure. CLASS I - HAZARDOUS GAS ATMOSPHERES CLASS I - HAZARDOUS GAS ATMOSPHERES Ignition Temp. NEC Ignition Temp. NEC Group Material F C Code Group Material F C Code A Acetylene T2 D Methyl Isobutyl Ketone T2 B Acrolein (Inhibited) T2D 2-Methyl-1-Propanol T2 Butadiene (Isobutyl Alcohol) Ethylene Oxide Petroleum Naptha T2A Hydrogen Pyridine T1 Propylene Oxide Octanes T3 Propyl Nitrate Pentanes T2B C Acetaldehyde T3B 1-Pentanol (Amyl Alchohol) T2 Allyl Alcohol Propane T1 Carbon Monoxide Propanol (Propyl Alchohol) T2 Cyclopropane Propanol (Isopropyl Alcohol) T2 Ethylene Propylene T1 Hydrogen Cyanide Styrene T1 Hydrogen Sulfide Toluene T1 2-Nitropropane Vinyl Acetate T2 Tetrahydrofuran Vinyl Chloride T1 D Acetic Acid (Glacia) T1 Xylenes T1 Acetone Ammonia, Anhydrous CLASS II - HAZARDOUS DUST ATMOSPHERES Benzene T1 Ignition Temp. NEC Butane T2A Group Material F C Code 1-Butanol (Butyl Alcohol) E Aluminum, A422 Flake T2 2-Butanol Calcium Silicide T1 (Secondary Butyl Alcohol) Manganese T2C Ethane Magnesium, Grade B, Milled T2 Ethanol (Ethyl Alcohol) F Charcoal T3A Ethyl Acetate Coal, Kentucky Bituminous T3A Ethylene Dichloride Coal, Pittsburgh Experimental T3B Gasoline (56-60 Octane) Pitch, Petroleum T1 Gasoline (100 Octane) G Alkyl Ketone Dimer T3C Heptanes Sizing Compound Hexanes Corn T2C Isoprene Corn Starch, Modified T3 Isopropyl Ether Polyurethane Foam, T2 Methane (Natural Gas) Fire Retardant Shellac T2 Methanol (Methyl Alcohol) Soy Flour T3A 3-Methyl-1-Butanol Sugar, Powdered T2 (Isoamyl Alcohol) Sulfur T2D Methyl Ethyl Ketone Wheat T2D Wood Flour T2B The materials given are found in NFPA 497, 1991 and NFPA 325,

8 Comparison Chart E X P L O S I O N - P R O O F H E A T E R S E X P L O S I O N - P R O O F H E A T E R S Only HEATREX offers a selection of explosion-proof heater constructions to meet your specific application. Features Hazardous Location NEC Classifications Ignition Temperature Code KW Range Standard Built-in Overtemperature Protection Other Standard Built-in Controls 233 Series Our most popular and versatile construction has a broad range of stock designs, special options and the industry s lowest Ignition Temperature Code rating, 320 F (160 C). 233 Series Class I, Divisions 1 and 2, Groups C and D Class II, Divisions 1 and 2, Groups E, F, and G Class 1, Zones 1 and 2, Groups IIB T3C 320 F (160 C) Up to 30 KW Dual overtemperature protection with automatic and manual reset thermal cutouts Controlling contactor, control circuit transformer 24V Standard Control Voltage Single Point Line Voltage Connection for Incoming Power Yes Optional Built-in Controls Thermostat Yes Disconnect Switch Yes Selector Switch Yes Manual Reset Cutout Standard Heater On Pilot Light Yes Warning Pilot Light Yes Control Circuit Transformer Standard Standard Construction Heater Assembly Liquid-to-air heat exchanger, steel tube with aluminum fins, propylene glycol, immersion heater Cabinet/Housing Powder coated galvanized steel NEMA 7, 9 Control Enclosure Cast aluminum Mounting Brackets Wall, ceiling or pole mounting kits (optional) Optional Constructions Dirty Duty Corrosion Resistant Choice of 316SS Construction or Heresite coating 50 Hertz Motor Yes Agency Approvals FM (Factory Mutual) Yes CSA (Canadian Standards Association) Yes ABS (American Bureau of Shipping) No 6

9 Comparison Chart 236 Series The industry s smallest and most economical design for Class I, Group D applications up to 12 KW. 254 Series Small, compact design with a wide range of optional built-in controls. 236 Series 254 Series Class I, Divisions 1 and 2, Group D Class 1, Zones 1 and 2, Group IIA T3 392 F (200 C) (Varies with KW) Up to 12 KW Primary and secondary automatic reset cutouts with fan relay Controlling contactor 120V Separate 120V motor line required Class I, Divisions 1 and 2, Groups B, C and D Class II, Divisions 1 and 2, Groups E, F, and G Class 1, Zones 1 and 2, Groups IIC T3C 320 F (160 C) (Varies with classification) Up to 9.5 KW Primary automatic reset cutout None Maximum 277V Yes E X P L O S I O N - P R O O F H E A T E R S Yes No No Yes No No No Yes No No No No No Yes Stainless steel finned tubular elements Stainless steel Cast aluminum Swivel mounting bracket (standard) Heater core enclosed in copper tube with large aluminum fins Powder coated galvanized steel Cast aluminum Wall mounting bracket (standard) Yes No Wet locations (NEMA 3) iridite coated elements N/A Yes Yes Yes Yes Yes Yes 7

10 233 Series U N I T H E A T E R E X P L O S I O N - P R O O F H E A T E R S Applications Aircraft Hangars/Service Areas Chemical Storage/Handling Areas Coal Preparation Plants Compressor Stations Grain Elevators Oil Refineries and Rigs Paint Storage Areas Petrochemical Plants Sewage Pump Stations/ Treatment Plants Spray Booths Class I, Divisions 1 and 2, Groups C and D Class II, Divisions 1 and 2, Groups E, F and G Class I, Zones 1 and 2, Group IIB Temperature Code T3C, 320 F (160 C) HEATREX s 233 Series explosion-proof unit heater is designed with both safety and versatility in mind. Unique features include: Industry s Lowest Ignition Temperature Code Rating: T3C, 320 F (160 C) Dual Overtemperature Protection: With both automatic and manual reset overtemperature cutouts for additional safety. Nontoxic Propylene Glycol Heat Transfer Fluid Low 70 PSIG Relief Valve Setting: This assures that in an emergency, the initial escaping vapor temperature remains below the 320 F (160 C) ignition temperature. Corrosion Resistant Options: HEATREX offers three constructions suitable for most applications. Standard construction for use in dry non-corrosive areas includes: welded steel heat exchanger; powder-coated cabinet. A 316 stainless steel construction suitable for Waste Water Treatment Plants includes: 316 stainless steel heat exchanger, headers and tubes with aluminum fins; stainless steel cabinet; corrosion resistant hardware. Third construction is suitable for use in Chemical Plants where chlorides are present and includes: Heresite coated heat exchanger, cabinet, fan blade; corrosion resistant hardware. Standard Construction Features Heat Exchanger Efficient liquid-to-air design utilizes an all welded steel headers and finned tube construction with spiral wound aluminum fins. Industrial grade HEATREX heating elements are immersed in a nontoxic, inhibited, propylene glycol heat transfer fluid that provides freeze protection down to -49 F (-45 C). The heat exchanger is hydrostatically tested at 350 psig. A pressure relief valve provides excess pressure protection and is set at 70 psig. Fan Motor Assembly Consists of an explosion-proof motor fitted with an aluminum fan blade. The motor has double-shielded, permanently lubricated ball bearings and automatic reset line breaking thermal overload protection. Motors furnished on standard units operate at line voltage and are prewired to the control enclosure so separate field wiring to the motor is not required. The standard motor is rated for Class I, Groups C and D, Class II, Groups F and G. The minimum operating temperature is -14 F (-25 C) and the minimum storage temperature is -49 F (-45 C). Optional motor ratings are described on page 9. Cabinet/Louvers Industrial grade, corrosion resistant construction fabricated from powder coated 14-gauge galvanized steel. The adjustable louvers have minimum opening safety stops. Controls Factory mounted on the unit heater. Standard builtin controls include automatic and manual reset overtemperature cutouts, controlling magnetic contactor, and 24-volt control circuit transformer housed in a NEMA 7, 9 cast aluminum enclosure. 8

11 Factory Built-in Options U N I T H E A T E R Code Option Description C1 C2 D E 316 Stainless Steel Corrosion-Resistant Construction (Waste Water Treatment Plants) Dirty Duty Corrosion-Resistant Construction (Chemical Plants) Disconnect Switch Group E (Metal Dust) Construction 316 Stainless steel heat exchanger with aluminum fins, 316 stainless steel cabinet; aluminum fan blade; cast aluminum NEMA 4X, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor, which has passed the ASTM B117 salt-spray test. Heresite coated heat exchanger, cabinet and fan blade; cast aluminum NEMA 4X, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor which has passed the ASTM B117 salt-spray test. Factory installed on the unit heater above the control enclosure. This is an inexpensive and positive way to meet NEC/CEC requirements for a disconnecting means within sight of the heater. Class II, Group E (Metal Dust) Construction Temperature Code T3C, 320 F (160 C) 233 Series Availability Code (2) C C AS C E X P L O S I O N - P R O O F H E A T E R S H 50 Hertz Motor Optional motors for international requirements. (See page 13 for KW availability) C K Warning Pilot Light Indicates when the thermal cutouts have tripped and the unit heater needs servicing. AS L Heater On Pilot Light Indicates when the electric heating elements are energized. AS M Manual Reset Thermal Cutout with Backup Contactor A pilot duty manual reset thermal cutout with a backup contactor is provided for independent secondary overtemperature protection. This option cannot be provided if option Code S or V are also specified. AS S Auto/Fan Selector Switch A two-position switch wired to the control circuit for auto (automatic heat) and fan only control. This selector switch cannot be provided if option Code M or V are also specified. AS T Adjustable Thermostat Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50 to 90 F (10 to 32 C) range. AS V 120 Volt Control Circuit Fused secondary and grounded Can be provided when required for special external thermostat circuit. This option cannot be provided if option Code S or M are also specified. Nor can both K and L be specified. AS (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. 9

12 233 Series U N I T H E A T E R E X P L O S I O N - P R O O F H E A T E R S Accessory Items Heater Mounting Kits These are available for ceiling, wall and pole mounting configurations as described below. Specify type required and catalog number at time of order entry. MH 6-1/8" ( mm) 2.5 (63.5) 5" (127 mm) Ceiling Mounting Kit Wall Mounting Kit MW 5" (127 mm) MW Pole Mounting Kit Size MH In. (mm) MW In. (mm) (281) 9 (228.6) (382.6) 7 (177.8) (484.2) 5 (127) Unit Heater Mounting Kits (One kit required per heater) Standard Mounting Kits for use in most applications Description Availability Code (2) Ceiling Mounting Kit, for Frame Size 1, 2, Wall Mounting Kit, for Frame Size 1, 2, 3 AS Pole Mounting Kit, for Frame Size 1, 2, 3 Optional Mounting Kits for Option C1 or C2 heaters. Description S Corrosion Resistant Ceiling Mounting Kit, for Frame Size 1, 2, S Corrosion Resistant Wall Mounting Kit, for Frame Size 1, 2, S Corrosion Resistant Pole Mounting Kit, for Frame Size 1, 2, 3 (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Availability Code (2) AS Remote Room Thermostat Use catalog number See page

13 Dimensions, Airflows and Weights Overall Heater Dimensions Weight 60 Hertz Heaters Airflow Characteristics Motor/Fan 50 Hertz Heaters Airflow Characteristics Motor/Fan U N I T H E A T E R 233 Series Frame Size Size 1 Size 2 Size 3 X In. (mm) (552.45) (552.45) (530.23) Y In. (mm) ( ) ( ) ( ) Z In. (mm) (408) ( ) ( ) Net Lbs. (kgs) 110 (49.89) 150 (68.03) 190 (86.18) Shipping Lbs (kgs) 130 (58.96) 169 (76.65) 216 (97.97) KW Range Air Volume CFM (cubic meter/hr.) 650 (1104) 850 (1444) 1800 (3058) 3110 (5283) 3850 (6541) Air Throw Feet (m) 15 (4.5) 25 (7.6) 45 (13.7) 65 (19.8) 75 (22.8) RPM 1725 HP 1/4 1/2 Fan Blade Dia. In. (mm) 12 (304.8) 16 (406.4) 20 (508) KW Range Air Volume CFM (cubic meter/hr.) 550 (934) 700 (1189) 1500 (2549) 2600 (4417) Air Throw Feet (m) 13 (4) 22 (7) 39 (12) 57 (17) RPM 1438 HP 1/4 1/2 Fan Blade Dia. In. (mm) 12 (304.8) 16 (406.4) 20 (508) E X P L O S I O N - P R O O F H E A T E R S Y X Side View 6-3/4 Z Front View 11

14 233 Series U N I T H E A T E R E X P L O S I O N - P R O O F H E A T E R S Heater Listing 60 Hz KW Volts Phase Total Amps (1) Frame Size Class I, Divisions 1 and 2, Groups C and D Class II, Divisions 1 and 2, Groups F and G Class I, Zones 1 and 2, Group IIB Temperature Code T3C, 320 F (160 C) Approximate Air Temperature Rise F ( C) (8) HX-233-FA-0036C (8) HX-233-FA-0036J (8) HX-233-FA-0036D (8) HX-233-FA-0036K (8) HX-233-FA-0036U (8) HX-233-FA-0036Z (13) HX-233-FA-0056C (13) HX-233-FA-0056J (13) HX-233-FA-0056D (13) HX-233-FA-0056K (13) HX-233-FA-0056U (13) HX-233-FA-0056Z (16) HX-233-FA-0086C (16) HX-233-FA-0086J (16) HX-233-FA-0086D (16) HX-233-FA-0086K (16) HX-233-FA-0086U (16) HX-233-FA-0086Z (21) HX-233-FA-0106J (21) HX-233-FA-0106D (21) HX-233-FA-0106K (21) HX-233-FA-0106U (21) HX-233-FA-0106Z (15) HX-233-FB-0156D (15) HX-233-FB-0156K (15) HX-233-FB-0156U (15) HX-233-FB-0156Z (19) HX-233-FB-0206U (19) HX-233-FB-0206Z (14) HX-233-FC-0256U (14) HX-233-FC-0256Z (13) HX-233-FC-0306U (13) HX-233-FC-0306Z (1) Total Amps = Heating element amps and motor amps. (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Availability (2) AS 12

15 Heater Listing 50 Hz KW Volts Phase Total Amps (1) Frame Size U N I T H E A T E R 233 Series Explosion-Proof Unit Heater Class I, Divisions 1 and 2, Groups C and D Class II, Divisions 1 and 2, Groups F and G Class I, Zones 1 and 2, Group IIB Temperature Code T3C, 320 F (160 C) Approximate Air Temperature Rise F ( C) (8) HX-233-FA-0036E (8) HX-233-FA-0036F (8) HX-233-FA-0036G (8) HX-233-FA-0036H (8) HX-233-FA-0036I (13) HX-233-FA-0056E (13) HX-233-FA-0056F (13) HX-233-FA-0056G (13) HX-233-FA-0056H (13) HX-233-FA-0056I (16) HX-233-FA-0076E (16) HX-233-FA-0076F (16) HX-233-FA-0076G (16) HX-233-FA-0076H (16) HX-233-FA-0076I (21) HX-233-FA-0096E (21) HX-233-FA-0096F (21) HX-233-FA-0096G (21) HX-233-FA-0096H (21) HX-233-FA-0096I (14) HX-233-FB-0136F (14) HX-233-FB-0136G (14) HX-233-FB-0136H (14) HX-233-FB-0136I (19) HX-233-FB-0176F (19) HX-233-FB-0176G (19) HX-233-FB-0176H (19) HX-233-FB-0176I (14) HX-233-FC-0216G (14) HX-233-FC-0216H (14) HX-233-FC-0216I (17) HX-233-FC-0256G (17) HX-233-FC-0256H (17) HX-233-FC-0256I (1) Total Amps = Heating element amps and motor amps. (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Availability (2) C E X P L O S I O N - P R O O F H E A T E R S 13

16 E X P L O S I O N - P R O O F H E A T E R S U N I T H E A T E R 233 Series Explosion-Proof Unit Heater Three Constructions to Choose From; Standard, Stainless Steel or Heresite Standard - Non-corrosive applications Aircraft Hangars/Servicing Areas Coal Mines/Preparation Plants Gasoline Fueling/Storage Areas Paint Spraying/Storage Areas Utility Plants Standard 24VAC transformer Contactor Automatic and manual reset overtemperature thermal cutouts Heavy 14-Gauge Cabinet Powder coated - standard 316 stainless steel or Heresite coated - options Optional 316 Stainless Steel or Heresite Coating Chemical Plants Chemical Storage/Handling Areas Food Processing Plants Oil Refineries Petrochemical Plants Sewage Treatment/Wastewater Treatment Plants Adjustable louvers Finger safe fan guard split construction for easy removal for field servicing. Optional Disconnect switch with lockout Fan selector switch Thermostat Thermally-protected explosion-proof motor with heavy-gauge aluminum fan blade designed for easy field servicing. Designed for Easy Servicing Removable core Split fan guard Easy access to motor and fan Replaceable automatic and manual thermal cutouts Threaded control enclosure Heater Core All welded construction with: Painted steel headers with steel tubes and spiral wound aluminum fins - standard 316 stainless steel or heresite construction - options Core can be easily removed through bottom of cabinet Heresite is a registered trademark of Heresite Protective Coatings, Inc. 14

17 U N I T H E A T E R 236 Series Applications Chemical Storage/ Handling Areas Compressor Stations Marine and Offshore Oil Platforms and Refineries Sewage/Wastewater Treatment Plants Spray Booths Class I, Divisions 1 and 2, Group D Class I, Zones 1 and 2, Group IIA HEATREX s 236 Series explosion-proof unit heater is designed with both size and economy in mind. Advantages and unique features include: Compact Size: This small design is only 13 inches wide, which makes it ideal for applications where limited space is available. Low Cost: The design offers the most economical solution for heating small Class I, Group D hazardous areas. It is a cost effective alternative to the use of explosionproof convection heaters. Redundant Overtemperature Protection: Primary and secondary automatic reset thermal cutouts for additional safety. Stainless Steel Construction: Provides superior corrosion resistant protection. Optional Dirty Duty construction adds polyester powder coating to all aluminum parts for use in corrosive applications. Optional Marine Duty Construction: Ideal for shipboard use where size, weight and corrosion resistant construction are critical. American Bureau of Shipping E X P L O S I O N - P R O O F H E A T E R S Standard Construction Features Heating Elements Industrial grade, Type 304 stainless steel finned tubular heating elements are manufactured by HEATREX. Terminal Enclosure A NEMA 7, 9 cast aluminum enclosure with a threaded bottom cover permits easy access to the built-in controls from underneath the heater. Housing Round, 16-gauge stainless steel shroud. Grilles An adjustable stainless steel louvered outlet grille directs airflow 45 up or down and a heavy gauge stainless steel rear grille protects against accidental contact with the fan blade. Stainless Steel Swivel Mounting Bracket Supplied as standard with all 236 Series explosion-proof unit heaters. This multi-purpose bracket can be used for either wall or ceiling mounting. Built-In Controls Include primary and secondary automatic reset overtemperature cutouts, controlling contactor, and a time delay relay which keeps the fan running to cool the heating elements after they have been deenergized. Fan Motor Assembly Consists of a 120-volt, 1-phase 60 hertz motor fitted with an aluminum fan blade. The totally enclosed motor is UL Listed for Class I, Group D applications and includes permanently lubricated ball bearings and built-in thermal overload protection. The motor is factory wired into the enclosure to reduce field wiring, but requires a separate 120-volt power supply. 15

18 236 Series U N I T H E A T E R E X P L O S I O N - P R O O F H E A T E R S Custom Options Code Option Description C CM Dirty Duty Corrosion Resistant Construction Marine Duty Construction Dimensions, Airflows and Weights Includes polyester powder coated fan blade, wiring conduit and fittings, NEMA 4X, 7, 9 enclosure. Dirty Duty Construction with manual reset thermal cutout. Meets U.S. Coast Guard requirements per 46CFR and is ABS Approved Availability Code (2) M Manual Reset Cutout Can be specified to replace secondary automatic cutout. C T Adjustable Thermostat Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50 to 90 F (10 to 32 C) range. C (2) AS = Assembly Stock, C = Custom Assembly Stock heaters ordered with custom options are subject to longer delivery. KW Ignition Temperature Code T3 T2C T2 T1 T1 Approximate Air Temperature Rise F ( C) 9 (5) 15 (8) 22 (12) 31 (17) 37 (21) Airflow Characteristics Motor/Fan Weight Air Volume CFM (cubic meters/hr) 1050 (1784) 1050 (1784) 1050 (1784) 1050 (1784) C C 1050 (1784) Air Throw Feet (m) 25 (8) 25 (8) 25 (8) 25 (8) 25 (8) Outlet Velocity FPM (meters/min) 1140 (348) 1140 (348) 1140 (348) 1140 (348) 1140 (348) RPM HP 1/6 1/6 1/6 1/6 1/6 Fan Blade Dia. Inch ( cm) 12 (31) Net Lbs (kgs) 96 (44) Shipping Lbs (kgs) 110 (50) CEILING CEILING 8 Min (20.3 cm) 120V Motor: Control Wiring When Optional Built-On Thermostat is Used Optional Built-On Thermostat 5 ¾ (14.6 cm) 9 ¼ (48.9 cm) Swivel Bracket (Ceiling Mounted) (3.3 cm) Min AIRFLOW 20 (50.8 cm) WALL 8 Min (20.3 cm) 16 4⅜ (11.1 cm) Min 120V Motor: Control Wiring When Optional Built-On Thermostat is Used 28 ¼ (71.8 cm) Max Heater Wiring 22 (55.9 cm) 18 Ref. (45.7 cm) Standard Wall and Ceiling Installation with Swivel Mounting Bracket Remote Room Thermostat Use catalog number See page (33 cm)

19 U N I T H E A T E R 236 Series Heater Listing Ignition Temperature Code F ( C) T3 392 (200) T2C 446 (230) T2 572 (300) T1 842 (450) T1 842 (450) KW Volts Phase Heater Amps (1) Class I, Divisions 1 and 2, Group D Class I, Zones 1 and 2, Group IIA Availability Code (2) HX-236-F01T-0037C-7000 C HX-236-F01T-0037J-7001 C HX-236-F01T-0037T-7002 C HX-236-F01T-0037D-7003 C HX-236-F01T-0037K-7004 C HX-236-F01T-0037U-7005 C HX-236-F01T-0037Z-7006 C HX-236-F01T-0055C-7007 C HX-236-F01T-0055J-7008 C HX-236-F01T-0055T-7009 C HX-236-F01T-0055D-7010 C HX-236-F01T-0055K-7011 C HX-236-F01T-0055U-7012 C HX-236-F01T-0055Z-7013 C HX-236-F01T-0072C-7021 C HX-236-F01T-0072J-7022 C HX-236-F01T-0072T-7023 C HX-236-F01T-0072D-7024 C HX-236-F01T-0072K-7025 C HX-236-F01T-0072U-7026 C HX-236-F01T-0072Z-7027 C HX-236-F01T-0101J-7035 C HX-236-F01T-0101T-7036 C HX-236-F01T-0101D-7037 C HX-236-F01T-0101K-7038 C HX-236-F01T-0101U-7039 C HX-236-F01T-0101Z-7040 C HX-236-F01T-0121T-7041 C HX-236-F01T-0121K-7042 C HX-236-F01T-0121U-7043 C HX-236-F01T-0121Z-7044 C (1) The amps shown are for the heating elements only. The 120V, 1 Ph 60 Hz motor draws 3.8 amps and requires a separate 120V power supply. (2) Availability Code: C = Custom American Bureau of Shipping E X P L O S I O N - P R O O F H E A T E R S 17

20 254 Series E X P L O S I O N - P R O O F H E A T E R S Applications Battery Storage Areas Chemical Plants Coal Handling Facilities Dry Cleaning Plants Gasoline Fueling/Storage Areas Grain Elevators Oil Refineries Paint Spraying/Storage Areas Petrochemical Plants Class I, Divisions 1 and 2, Groups B, C and D Class II, Divisions 1 and 2, Groups E, F and G Class I, Zones 1 and 2, Group IIC HEATREX s explosion-proof convector is designed to provide a heavy duty and corrosion resistant heat source. Features include: Wide Selection of Sizes: Four compact sizes to fit any space with ratings from 500 to 9,500 watts. Sloped Top Cabinet: Prevents objects from being set on top of the convector, which can restrict airflow and cause overheating. Single and Three-Phase: Unique design provides single and balanced three-phase loads in a single element. Gas and Dust Atmospheres: Three listings cover the entire field, two for hazardous gases and vapors and one for dust particles. Wet Locations: All unit sizes available with iriditecoated elements and powder-coated frames for NEMA 3 wet locations. American Bureau of Shipping Standard Construction Features Element Grade A Nickel-Chromium heating coils are insulated with ceramics and magnesium oxide from the copper heater tube and fitted with large aluminum fins locked in place. Cabinet Heavy gauge galvanized steel cabinet is painted with a beige powder coat for durability. Cabinet should be mounted at least 6 inches (152 mm) above the floor. Factory-furnished wall brackets make installation easy. Thermal Protection A linear limit, automatic reset thermal cutout is built into every unit. Complete Electrical Package For larger single-phase and all three-phase units, a built-on contactor and transformer option package are available. 18

21 254 Series Electrical Package Options All single-phase heaters rated over 22 amps or 277 volts and all three-phase heaters require a magnetic contactor. Some electrical combinations will also require a control transformer. To simplify field installation, these Code Option Description B2 Electric Control Option (1) (without thermostat) B2/S1 Thermostat & Controls (1) B3 Thermostat & Controls (Group B) (1) S1 Thermostat Only (1) S2 Thermostat Only (Group B) (1) (1) These options are not available on Size 1 Convectors. accessories are factory-mounted on the heater cabinet and factory pre-wired (not available on Size 1 convectors). Classes I and II, Groups B, C, E, D, F and G includes contactor and transformer (as required). Required for all three-phase and single-phase heaters over 22 amps or 277 volts Classes I and II, Groups C, D, E, F and G includes thermostat, contactor and transformer (as required). Classes I and II, Groups B, C, D, E, F and G includes thermostat, contactor and transformer (as required). Thermostat has internal set point. Classes I and II, Groups C, D, E, F and G single-phase heaters rated up to 22 amps at volts. Use remote room thermostat for Size 1 convectors. Classes I and II, Groups B, C, D, E, F and G single-phase heaters rated up to 22 amps at volts. Thermostat has internal set point. Use remote room thermostat for Size 1 convectors. Availability Code (2) AS AS AS AS AS E X P L O S I O N - P R O O F H E A T E R S Custom Option Code Option Description NEMA 3 rated heater construction not available with S1, B2/S1 and S2 C1 Wet Locations thermostat options. (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Availability Code (2) C Dimensions and Weights Unit Size Dimensions - In. (cm) Weight - Lb (kg) Length (L) Height (H) Depth (D) Without Controls 1 26 (66) 6 (15) 4 ½ (11) 13 (5.9) 2 26 (66) 16 (41) 8 (20) 27 (12.2) 3 39 (99) 16 (41) 8 (20) 36 (16.3) 4 67 ½ (171) 16 (41) 8 (20) 60 (27.2) Remote Room Thermostat - See page 98. Ther mostat (If pecifie S Control Package Option: B2/S1 19

22 254 Series E X P L O S I O N - P R O O F H E A T E R S 20 Heater Listing Class I, Divisions 1 and 2, Groups B, C and D Class I, Zones 1 and 2, Group IIC Ignition Temperature Code F ( C) KW Volts/ Phase Heater Amps 120/ HX-254-F B / HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 1 208/ HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 208/ HX-254-F C / HX-254-F J 480/ HX-254-F U 600/ HX-254-F Z 208/ HX-254-F C 240/ HX-254-F J / HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 208/ HX-254-F C T2A 240/ HX-254-F J / HX-254-F D AS (280) 480/ HX-254-F U 600/ HX-254-F Z 240/ HX-254-F J / HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 240/ HX-254-F J / HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 240/ HX-254-F J / HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 240/ HX-254-F J / HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z Magnetic contactor required. Magnetic contactor and control transformer required. These accessories may be field mounted. For factory mounting, see Electrical Package Options on page 19. (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Other voltages available. Consult factory. Unit Size American Bureau of Shipping Availability Code (2)

23 254 Series Heater Listing Class I, Divisions 1 and 2, Groups B, C and D Ignition Temperature Code F ( C) T3A 356 (180) KW Volts/ Phase Heater Amps Unit Size 120/ HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 208/ HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 208/ HX-254-F C 240/ HX-254-F J 208/ HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z 240/ HX-254-F J 208/ HX-254-F D 480/ HX-254-F U 600/ HX-254-F Z American Bureau of Shipping Availability Code (2) AS E X P L O S I O N - P R O O F H E A T E R S Class I, Divisions 1 and 2, Groups B, C and D Class II, Divisions 1 and 2, Groups E, F and G Ignition Temperature Code F ( C) KW Volts/ Phase Heater Amps Unit Size Availability Code (2) T3C 320 (160) 0.5 Magnetic contactor required. Magnetic contactor and control transformer required These accessories may be field mounted. For factory mounting, see Electrical Package Options on page / HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 120/ HX-254-F B 208/ HX-254-F C 240/ HX-254-F J 480/ HX-254-F U HX-254-F Z 208/ HX-254-F C 240/ HX-254-F J 208/ HX-254-F D 480/ HX-254-F U 600/ HX-254-F U (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Other voltages available. Consult factory. AS 21

24 F A N - F O R C E D H E A T E R S Comparison Chart Unit Heaters Features Washdown 234 Series 238 Series 240 Series 926 Series 924 Series Vertical 928 Series Typical Applications Food processing plants Marine duty Wastewater treatment plants Factories Warehouses Factories Mechanical rooms Workshops Mechanical rooms Warehouses Workshops Mechanical rooms Storage rooms Gyms High bay areas Warehouses KW Range 2 to 47 3 to to 50 2 to 60 3 to 5 5 to 30 Voltages up to 600/3 Up to 480/3 Up to 480/3 Up to 480/3 240/208/1 Up to 480/3 Airflow CFM Up to 2400 Up to 1774 Up to 3100 Up to Up to 2300 Discharge Horizontal Horizontal Horizontal or Vertical Horizontal or Vertical Horizontal Vertical Element Type Stainless steel finned tubular Stainless steel finned tubular Stainless steel finned tubular Stainless steel tubular or steel finned tubular Stainless steel tubular Steel finned tubular Standard Construction 16 gauge stainless steel shroud and non-metallic NEMA 4X control enclosure 16 gauge galvanized steel shroud and control enclosure gauge (depending on size) galvanized steel cabinet 8 & 20 gauge steel cabinet 20 gauge galvanized steel cabinet nized steel 18 gauge galva- cabinet Finish Stainless steel Beige polyester powder paint Camel polyester powder paint Almond polyester powder paint Almond polyester powder paint Almond polyester powder paint Mounting Ceiling or wall Ceiling or wall Ceiling or wall Ceiling or wall Ceiling or wall Ceiling Agency Approvals c UL us & ABS c UL us c UL us CSA us CSA us CSA us 22

25 Applications Car Washes Cement Plants Coal Handling Areas Dairies Food Processing Plants 234 Series Washdown/Corrosion Resistant Unit Heater Marine and Offshore Power Generating Stations Steel Mills and Foundries Swimming Pool Areas Wastewater Treatment Plants American Bureau of Shipping The HEATREX 234 Series unit heater is the perfect solution to the problem of heating people or equipment in non-hazardous environments where moisture and corrosion exist. Advantages include: Built-in Controls: All necessary safety and temperature controls are included in a single package. Components and motor are factory-wired to a single terminal block for field wiring, eliminating the chance for field error and reducing installation costs. Single Point Electrical Hook-up: Heater, fan motor and controls are all connected to the same branch circuit. Corrosion Resistant: Stainless steel construction, powdercoated aluminum fan blade and nonmetallic NEMA 4X terminal enclosure resist corrosion found in sewage treatment plants, swimming pool areas, car washes, paper mills and marine installations. Washable: This watertight construction can be hosed down without disconnecting the heater, which makes it ideal for coal handling areas, steel mills, foundries, ships, wood finishing plants, cement, sand, grain and food processing facilities. F A N - F O R C E D H E A T E R S Standard Construction Features Heating Elements Industrial grade, Type 316 stainless steel tubular elements with stainless steel fins, manufactured by HEATREX. Fan Motor Assembly Totally enclosed, epoxy coated, UL Recognized motor with permanently lubricated ball bearings for longer life. Designed to resist moisture and corrosion. Factory-wired to NEMA 4X enclosure. Fitted with a powdercoated, aluminum fan blade suitable for corrosive salt spray environments. Housing Heating elements and motor are enclosed in a round, heavy 16-gauge stainless steel shroud. Inlet/Outlet Grilles Adjustable, stainless steel, louvered outlet grille can be rotated 90 to direct airflow up, down, left or right. Heavy gauge, stainless steel rear grille protects against accidental contact with the fan blade. Control Enclosure The non-metallic enclosure, which houses the element terminals and built-in controls, will not rust and meets NEMA 4X hose-down requirements. Built-in Controls Include automatic reset overtemperature cutout, fan delay relay, controlling contactor, transformer for 24-volt control circuit, terminal block for field wiring and a separate motor contactor (when required). Mounting Bracket The heater comes complete with a stainless steel swivel mounting bracket which can be used either for wall or ceiling mounting. Four field-supplied 3/8-16 threaded rods can also be used for ceiling installation. 23

26 F A N - F O R C E D H E A T E R S 234 Series Washdown/Corrosion Resistant Unit Heater Factory Built-in Options Code Description Availability Code (2) B Delete swivel mounting bracket. Heater installs from the ceiling with field furnished threaded rods. AS C Epoxy painted stainless steel parts, housing, grilles and fan blade C D Power disconnect switch AS E Monel finned tubular elements C L Heater on pilot light AS M Secondary manual reset overtemperature cutout. Required for U.S. Coast Guard and ABS Approved designs. AS S Three-position selector switch (heater-standby-fan) AS T 1- Stage Built-in thermostat 40 to 100 F (5 to 38 C) range AS 2- Stage Built-in thermostat 40 to 120 F (5 to 49 C) range (Option X required) C V 120 volt control circuit, fused secondary and grounded AS X 2-Stage Control C (2) AS = Assembly Stock, C = Custom. Assembly Stock heaters ordered with custom options are subject to longer delivery. Remote Room Thermostat See page 98. Overall Heater Dimensions Mounting Hole Dimensions Airflow Characteristics Weight Dimensions, Airflows and Weights KW X Inch (cm) 15½ (39) 15½ (39) 26 (66) Y Inch (cm) 21½ (55) 21½ (55) 28 (71) Z Inch (cm) 13 (33) 13 (33) 20 (51) BH Inch (cm) 4¼ (11) 4¼ (11) 7⅛ (18) BL Inch (cm) 19½ (50) 19½ (50) 22¼ (57) M Inch (cm) 8½ (22) 8½ (22) 3¼ (8) Air Volume CFM (cubic meters/hr) 700 (1189) 1450 (2463) 2400 (4077) Air Throw Feet (m) 26 (8) 43 (13) 50 (15) Outlet Velocity FPM (meters/min) 760 (232) 1575 (481) 1200 (366) Net Lbs (kgs) 56 (25) 56 (25) 115 (52) Shipping Lbs (kgs) 70 (32) 70 (32) 130 (60) Ceiling Ceiling Swivel Bracket (Wall Mounting) 8 Min Z BH BL Swivel Bracket (Ceiling Mounting) Four 3/8-16 threaded rods (not supplied with the heater) 8 Min. Wall 8 Min. 8 Min. Y M 24 X Conduit Opening For Field Wiring Standard Wall and Ceiling Installation with Swivel Mounting Bracket Floor Wall 6 Foot Min (Any Mounting) Wall Optional Ceiling Installation with Four Threaded Rods

27 Heater Listing KW Volts Ph Total Amps (1) Approximate Air Temperature Rise F ( C) 234 Series Washdown/Corrosion Resistant Unit Heater Motor HP Volts Ph For Non-Hazardous Areas 2-Stage Control (5) 1/ HX-234-U11R-0020B 1B (5) 1/ HX-234-U11R-0020C 1B (5) 1/ HX-234-U11R-0020J 1B (5) 1/ HX-234-U11R-0020N 1B (8) 1/ HX-234-U11N-0030B 1B (8) 1/ HX-234-U11N-0030C 1B (8) 1/ HX-234-U11N-0030J 1B (8) 1/ HX-234-U11N-0030N 1B (8) 1/ HX-234-U11N-0030T 1B (8) 1/ HX-234-U11N-0030D 1A (8) 1/ HX-234-U11N-0030K 1A (8) 1/ HX-234-U11N-0030U 1A (8) 1/ HX-234-U11N-0030Z 1A (13) 1/ HX-234-U11R-0050C 1B (13) 1/ HX-234-U11R-0050J 1B (13) 1/ HX-234-U11R-0050N 1B (13) 1/ HX-234-U11R-0050T 1B (13) 1/ HX-234-U11N-0050D 1A (13) 1/ HX-234-U11N-0050K 1A (13) 1/ HX-234-U11N-0050U 1A (13) 1/ HX-234-U11N-0050Z 1A (19) 1/ HX-234-U11N-0080C 1B (19) 1/ HX-234-U11N-0080J 1B (19) 1/ HX-234-U11N-0080N 1B (19) 1/ HX-234-U11N-0080T 1B (19) 1/ HX-234-U11N-0080D 1A (19) 1/ HX-234-U11N-0080K 1A (19) 1/ HX-234-U11N-0080U 1A (19) 1/ HX-234-U11N-0080Z 1A (11) 1/ HX-234-U11N-0090C 1B (11) 1/ HX-234-U11N-0090J 1B (11) 1/ HX-234-U11N-0090N 1B (11) 1/ HX-234-U11N-0090T 1B (11) 1/ HX-234-U11N-0090D 1A (11) 1/ HX-234-U11N-0090K 1A (11) 1/ HX-234-U11N-0090U 1A (11) 1/ HX-234-U11N-0090Z 1A (12) 1/ HX-234-U11N-0100J 1B (12) 1/ HX-234-U11N-0100N 1B (12) 1/ HX-234-U11N-0100T 1B (12) 1/ HX-234-U11N-0100D 1A (12) 1/ HX-234-U11N-0100K 1A (12) 1/ HX-234-U11N-0100U 1A (12) 1/ HX-234-U11N-0100Z 1A (14) 1/ HX-234-U11N-0120N 1A (14) 1/ HX-234-U11N-0120T 1B (14) 1/ HX-234-U11N-0120D 1A (14) 1/ HX-234-U11N-0120K 1A (14) 1/ HX-234-U11N-0120U 1A (14) 1/ HX-234-U11N-0120Z 1A (9) 1/ HX-234-U11L-0130D 1A (9) 1/ HX-234-U11L-0130K 1A (9) 1/ HX-234-U11L-0130U 1A (9) 1/ HX-234-U11L-0130Z 1A (12) 1/ HX-234-U11L-0150D 1A (12) 1/ HX-234-U11L-0150K 1A (12) 1/ HX-234-U11L-0150U 1A (12) 1/ HX-234-U11L-0150Z 1A (16) 28 (16) 1/4 1/ HX-234-U11L-0200U HX-234-U11L-0200Z 1A 1A (19) 1/ HX-234-U11A-0250Z 1B (19) 1/ HX-234-U11A-0250U 1B (23) 1/ HX-234-U11A-0300U 1B (23) 1/ HX-234-U11A-0300Z 1B (27) 1/ HX-234-U11A-0350U 1B (27) 1/ HX-234-U11A-0350Z 1B (30) 1/ HX-234-U11A-0390U 1B (30) 1/ HX-234-U11A-0390Z 1B (36) 1/ HX-234-U11A-0470Z 1B Availability Code (2)(3) AS American Bureau of Shipping (1) Total Amps = Heating element amps and motor amps. (2) Availability Code: AS = Assembly Stock, (3) Stock heaters ordered with custom options subject to longer delivery. NOTE: 2-Stage heaters can be field wired as single stage. 1A = Optional 2-stage control, unbalanced (option X ). 1B = Optional 2-stage control, balanced (option X ) 25 F A N - F O R C E D H E A T E R S

28 F A N - F O R C E D H E A T E R S 238 Series Industrial Unit Heater Applications Aircraft Hangars Entryways Factories Garages Power Generating Stations Pump Houses Service Stations HEATREX s industrial unit heater is designed for maximum heating performance in non-hazardous and noncorrosive environments. Features include: Unique Design: Round design of the industrial unit heater provides uniform airflow over the elements to prevent hot spots and ensure even discharge temperatures. Circular stainless steel finned tubular elements have a longer life due to lower operating temperatures. Built-in Controls: Heaters are completely assembled with all electrical components built-in at the factory to reduce installation costs. Improved Performance: High CFM s and air throw up to 50 feet promote air circulation within the space. More uniform temperature increases comfort levels and helps to eliminate cold spots. Single Point Electrical Hook-up: Heater, fan motor and controls are all connected to the same branch circuit. Standard Construction Features Heating Elements Industrial grade, Type 304 stainless steel finned tubular elements, manufactured by HEATREX. Housing Heating elements and motor are enclosed in a round, 16-gauge galvanized steel enclosure which has a powder coat finish for durability. Inlet/Outlet Grilles Inlet grille complies with OSHA requirements for fan blade guard. Outlet grille has 45 angled louvers to direct airflow. Fan Motor Motor is UL Recognized with built-in thermal protection. Built-in Controls Include main control magnetic contactor, control voltage transformer, automatic reset thermal cutout and fan thermostat. Mounting Bracket Wall mounting bracket with single point suspension allows the heater to rotate a full

29 Factory Built-in Options Code Description 238 Series Industrial Unit Heater Availability Code (2) B No mounting bracket AS C Substitute wall mounting bracket with ceiling bracket AS D Power Disconnect Switch AS G Adjustable Outlet Louvers C H Premium Fan Motor AS L Heater On Pilot Light AS M Manual Reset Thermal Cutout AS R Built-in Fan Relay - Required for Remote Fan Switch AS S Three-position Selector Switch (Heater-Standby-Fan) AS T Built-in Thermostat 40 to 120 F (4 to 49 C) Range AS X No Transformer - Customer supplied control voltage AS (2) AS = Assembly Stock, C = Custom. Assembly stock heaters ordered with custom options subject to longer delivery. F A N - F O R C E D H E A T E R S Dimensions, Weights and Air Throws KW Dimensions - In. (cm) M W X Y Z Weight Lb (kgs) Maximum Air Throw-Ft. (m) ¼ (21) 8¾ (22) 15 (38) 17 (43) 13 (41) 45 (20) 15 (5) (18) 5½ (14) 16¼ (41) 23½ (60) 19¼ (49) 60 (27) 50 (15) (10) 5½ (14) 20¾ (53) 23½ (60) 19¼ (49) 80 (36) 50 (15) CEILING Minimum 2 Ft. Maintenance Access 6 In. Wall mounting bracket Two 3/8-16 threaded rods (not supplied with the heater) Ceiling mounting bracket WALL WALL Airflow Y X Z 6 Ft. Minimum to floor (any mounting) Minimum W Motor Data Description RPM Airflow - CFM (cubic meters/hr) Noise Level (db) 1-12 KW KW KW 1-12 KW KW KW Standard (615) 1342 (2280) 1237 (2102) Premium (1050) 1774 (3014) 1635 (2778)

30 F A N - F O R C E D H E A T E R S 238 Series Industrial Unit Heater Heater Listing KW Volts Phase Total Amps (1) Approximate Air Temperature Rise F ( C) Motor HP Volts Phase * Premium motor comes standard with heater. (1) Total Amps = Heating element amps and motor amps. (2) AS = Assembly Stock, C = Custom. Assembly stock heaters ordered with custom options subject to longer delivery. For Non-Hazardous Areas For Non-Corrosive Areas (12) 1/ HX-238-UT03C (12) 1/ HX-238-UT03J (12) 1/ HX-238-UT03T (12) 1/ HX-238-UT03D (12) 1/ HX-238-UT03K (12) 1/ HX-238-UT03U (19) 1/ HX-238-UT05C (19) 1/ HX-238-UT05J (19) 1/ HX-238-UT05T (19) 1/ HX-238-UT05D (19) 1/ HX-238-UT05K (19) 1/ HX-238-UT05U (29) 1/ HX-238-UT08C (29) 1/ HX-238-UT08J (29) 1/ HX-238-UT08T (29) 1/ HX-238-UT08D (29) 1/ HX-238-UT08K (29) 1/ HX-238-UT08U (36) 1/ HX-238-UT09C (36) 1/ HX-238-UT09J (36) 1/ HX-238-UT09T (36) 1/ HX-238-UT09D (36) 1/ HX-238-UT09K (36) 1/ HX-238-UT09U (39) 1/ HX-238-UT10J (39) 1/ HX-238-UT10T (39) 1/ HX-238-UT10D (39) 1/ HX-238-UT10K (39) 1/ HX-238-UT10U (34) 1/ *HX-238-UT12T (34) 1/ *HX-238-UT12D (34) 1/ *HX-238-UT12K (34) 1/ *HX-238-UT12U (17) 1/ HX-238-UL13D (17) 1/ HX-238-UL13K (17) 1/ HX-238-UL13U (21) 1/ HX-238-UL15D (21) 1/ HX-238-UL15K (21) 1/ HX-238-UL15U (19) 1/ *HX-238-UL20U (37) 1/ HX-238-UA25U (44) 1/ HX-238-UA30U (34) 1/ *HX-238-UA35U (39) 1/ *HX-238-UA39U Availability Code (2) AS 28

31 240 Series Unit Heater The 240 Series unit heater is available in 50 standard models with ratings up to 50 KW at voltages of 208, 240, 277, and 480 single or three-phase. They are available with a wide variety of factory built-in or field-installed options. Temperature Control: Single-stage or two-stage control with built-in or remote-mounted thermostats are available on all heaters. Control Options: Available as factory built-in or fieldinstalled to meet job specifications. F A N - F O R C E D H E A T E R S Applications Factories Garages Mechanical Rooms Pump Houses Service Areas in Air Handling Units Shipping and Receiving Areas Storage Areas Warehouses Workshops Custom KW s: Custom KW s are available up to 50 KW. Discharge Direction: Heater can be mounted for horizontal or vertical discharge using an optional universal wall/ ceiling mounting bracket or with field-furnished threaded rods for ceiling mounting. Color Options: The standard color is camel. Six optional colors are available: grey, yellow, red, white, blue or textured beige. Heaters may also be supplied with unpainted corrosion resistant galvanized steel. See back cover for color samples. Standard Construction Features Heating Elements - Industrial grade, diameter steel sheath with brazed copper plated steel fins and epoxy sealed ends. Draw-thru airflow design pulls air across the heating elements to ensure cool element operation and even air distribution resulting in long element life. Housing - Heating elements and motor are enclosed in a heavy gauge galvanized steel cabinet with a durable polyester powder coat finish. Outlet Grille - Individually adjustable louvers are provided to direct airflow. A protective outlet fan guard is provided to prevent insertion of foreign objects. Fan Motor - Permanently lubricated and thermally protected motor. Built-in Controls - All units include an automatic reset thermal cutout that will de-energize the heater if an overtemperature condition occurs. A manual reset thermal cutout, in addition to an automatic reset thermal cutout, is standard on heaters 10 KW and above. A fan relay is provided to allow the elements to heat up before fan startup and purges the heater of residual heat after shutdown. A 24-volt transformer and disconnecting contactor are provided on most heaters. Single-phase heaters rated at 5 KW or less have line voltage controls; 24-volt control and contactor are available. Power fusing is standard on all heaters rated over 48 amps. Mounting Universal horizontal or vertical discharge. Optional diffusers are available for vertical discharge. An Anemostat diffuser can be used to provide draftfree air movement at lower mounting heights. For higher mounting heights, radial diffuser with adjustable fins can be used to increase floor coverage or adjusted for a vertical down blast of air. 29

32 F O R C E D - A I R H E A T E R S 240 Series Unit Heater Factory Built-in Options Code Description Consult Factory Custom KW - CONSULT FACTORY D Power disconnect switch F Fusing under 48 Amps, not available on heaters 3 to 10 KW M Manual Reset Cutout (In addition to automatic cutout) on heaters up to 10KW P (1) Heater On Pilot Light R1 Built-in 24V transformer and contactor for 3 to 5 KW, single phase heaters. R2 (1) (2) 120V Transformer to replace 24V Transformer, fused secondary and grounded S1 Summer Fan Switch S2 (1) Summer Fan Switch Remote Pilot Duty T Built-in Thermostat Stage Built-in Thermostat Stage (Option X required) V1* Anemostat (Cone) Diffuser V2 Radial Diffuser X (2) 2-Stage Control * consult factory for lead times (1) When specifying Option P (pilot light) or Option S2 (remote fan switch) or Option R2 (120V control) with 3 kw to 5 kw single phase heaters, Option R1 must be also specified. (2) Option R2 (120V control) and Option X (2-stage control) cannot be combined on heaters rated up to 5 KW. (3) When specifying these options with 3 to 5 KW single-phase heaters, Option R1 must also be specified. (4) When specifying this option, with any heater, option R2 must also be specified. Field-Installed Options (shipped loose for field installation into heater) Description Anemostat (Cone) Diffuser up to 5 kw Anemostat (Cone) Diffuser over 5 kw up to 20 kw Anemostat (Cone) Diffuser over 20 kw Radial Diffuser up to 5 kw Radial Diffuser over 5 kw up to 20 kw Radial Diffuser over 20 kw Horizontal Dust Shield up to 10 kw Horizontal Dust Shield over 20 kw up to 20 kw Horizontal Dust Shield over 20 kw Disconnect Switch, 600V, Three-Pole, 40 Amp Disconnect Switch, 600V, Three-Pole, 80 Amp Disconnect Switch, 600V, Three-Pole, 100 Amp Built-in Thermostat Stage Built-in Thermostat Stage (Option X required) (1)(3) Heater On Pilot Light (24V) (2)(4) Heater On Pilot Light (120V) Summer Fan Switch - Built-in up to 277V Summer Fan Switch- Built-in, over 277V (1)(3) Summer Fan Switch - Remote, 24V Control Vertical Mounting Air Pattern Table Description Used on Max Mtg. Height ft. (m) A ft (m) B ft (m) WITHOUT DIFFUSER For a straight downward air pattern, directional louvers can be removed in order to maximize airflow. up to 5 kw over 5 up to 10 kw over 10 up to 20 kw over 20 up to 50 kw 10 (3.0) 15 (4.6) 20 (6.1) 25 (7.6) 17 (5.2) 28 (8.5) 38 (11.6) 68 (20.7) DIRECTIONAL LOUVERS (standard) Provides a directional (straight line) airflow which results in a rectangular air pattern. Louvers can be adjusted through a 35 degree range of motion up to 5 kw over 5 up to 10 kw over 10 up to 20 kw over 20 up to 50 kw 10 (3.0) 15 (4.6) 20 (6.1) 25 (7.6) 22 (6.7) 40 (12.2) 53 (16.2) 85 (25.9) 12 (3.7) 20 (6.1) 27 (8.2) 45 (13.7) ANEMOSTAT DIFFUSER Ideal for low mounting heights. Fabricated using 3 diverging hollow cones which disperse heat to the floor area at a minimum velocity for comfort. up to 5 kw over 5 up to 10 kw over 10 up to 20 kw over 20 up to 50 kw 9 (2.7) 13 (4.0) 17 (5.2) 21 (6.4) 17 (5.2) 29 (8.8) 40 (12.2) 68 (20.7) RADIAL DIFFUSER Ideal for high ceiling mounting. Louvers can be adjusted to direct airflow straight down when fully open to 45 degrees in a radial pattern which increases floor coverage by approxiately 20%. OPEN 45 up to 5 kw over 5 up to 10 kw over 10 up to 20 kw over 20 up to 50 kw up to 5 kw over 5 up to 10 kw over 10 up to 20 kw over 20 up to 50 kw 10 (3.0) 15 (4.6) 20 (6.1) 25 (7.6) 9 (2.7) 11 (3.4) 15 (4.5) 18 (5.5) 20 (6.1) 30 (9.1) 38 (11.6) 65 (19.8) 24 (7.3) 36 (11.0) 46 (14.0) 78 (23.8) 30

33 Heater Listing KW Volts Ph Total Amps* Approx. Air Temperature Rise F ( C) 2-Stage Control Std. Control Voltage 240 Series Unit Heater Unit Size (2) B HX-240-U1025C (15) 1B HX-240-U1025J B HX-240-U1026N B HX-240-U1033C B HX-240-U1033J B HX-240-U1033N 27 (15) A 24 1 HX-240-U1037U A 24 1 HX-240-U1038D A 24 1 HX-240-U1038K B HX-240-U1050C B HX-240-U1050J B HX-240-U1050N 46 (26) A 24 1 HX-240-U1050D A 24 1 HX-240-U1050K A 24 1 HX-240-U1050U B 24 2 HX-240-U2067C B 24 2 HX-240-U2067J B 24 2 HX-240-U2067N B 24 2 HX-240-U2075C 37 (21) B 24 2 HX-240-U2075J A 24 2 HX-240-U2075D A 24 2 HX-240-U2075K A 24 2 HX-240-U2075U B 24 2 HX-240-U2099C B 24 2 HX-240-U2100J B 24 2 HX-240-U2100N 49 (27) A 24 2 HX-240-U2100D A 24 2 HX-240-U2100K A 24 2 HX-240-U2100U B 24 3 HX-240-U3132N Standard 24 3 HX-240-U3133C-X Standard 24 3 HX-240-U3133J-X 52 (29) B 24 3 HX-240-U3150D B 24 3 HX-240-U3150K B 24 3 HX-240-U3150U Standard 24 3 HX-240-U3199C-X (1) B 24 3 HX-240-U3199K Standard 24 3 HX-240-U3200J-X (1) 60 (33) Standard 24 3 HX-240-U3200N-X Standard 24 3 HX-240-U3200D-X B 24 3 HX-240-U3200U Standard 24 4 HX-240-U4250D-X Standard 24 4 HX-240-U4250K-X B 24 4 HX-240-U4250U 49 (27) Standard 24 4 HX-240-U4333D-X Standard 24 4 HX-240-U4333K-X B 24 4 HX-240-U4333U Standard 24 4 HX-240-U4375D-X (34) Standard 24 4 HX-240-U4375K-X A 24 4 HX-240-U4375U *Total Amps = Heating element amps and motor amps. 1. Disconnect switch unavailable on HX-240-U3199C-X and HX-240-U3200J-X 2. All Standard heaters are supplied with 24V transformer and contactor except up to 5 KW single phase units. Optional low voltage transformer and contactor are available for these heaters, see Factory Built-in Option R1. 2-stage heaters can be field wired as single stage. 1A = Optional 2-stage control, unbalanced (option X) 1B = Optional 2-stage control, balanced (option X). 31 F O R C E D - A I R H E A T E R S

34 F O R C E D - A I R H E A T E R S 240 Series Unit Heater Remote Thermostat Selection Chart KW Volts Ph Stage Line Voltage 1-Stage Low Voltage (b) 2-Stage Low Voltage (b) HX-240-U1033C (a) (a) HX-240-U1033J (a) (a) HX-240-U1033N (a) (a) 3.7 HX-240-U1037U NA HX-240-U1038D NA HX-240-U1038K NA HX-240-U1050C NA (a) (a) 5 HX-240-U1050J (a) (a) HX-240-U1050N (a) (a) All Other 240 Series Heaters NA (a) Add option R1 for 24V control on these units. (b) Option R2 is unavailable with any HEATREX supplied remote low voltage thermostats. Mounting Brackets Description Universal wall & ceiling mounting bracket up to 10 KW Universal wall & ceiling mounting bracket over 10 KW up to 20 KW Universal wall & ceiling mounting bracket over 20 KW Finish/Color Options Code Finish Color None Camel A0 Grey A1 Polyester Yellow A2 Powder Coat Red A3 White A4 Blue A5 Steel (unpainted) Galvanized A7 Polyester Powder Coat Beige Airflows, Weights and Air Throw Unit Size CFM Installed Weight lb (kg) Max. Air Throw ft. (m) (11.3) 15 (4.6) (18.1) 18 (5.5) (25) 41 (12.5) (70.3) 62 (18.9) 32

35 Applications Garages Mechanical Rooms Vestibules Warehouses 926 Series Unit Heater The 926 Series unit heater is designed for industrial and commercial applications. Large Capacity: Heavy-duty construction with ratings up to 60 KW at 2,000 CFM. Control Options: Wide range of factory built-in or field-installed control options to meet job specifications. Single Point Electrical Hook-up: Heater, fan motor and controls are all connected to the same branch circuit. Field connections and built-in controls are easily accessed in the side-mounted control compartment. Discharge Direction: The heater may be mounted horizontally using one of two brackets (supplied) or vertically using four threaded rods (not included). F O R C E D - A I R H E A T E R S Stairwells Workshops Standard Construction Features Heating Elements Industrial grade stainless steel tubular elements in 2-10 KW units and steel finned tubular elements in KW units. Housing Cabinet is constructed of 18 and 20-gauge galvanized steel finished with durable almond polyester powder paint. Outlet Grille The outlet grille has individually adjustable louvers to direct airflow. A protective outlet mesh screen, provided on 2-30 KW heaters, allows for lower mounting heights. Fan Motor Totally enclosed, thermally protected motor with factory-lubricated ball bearings operates at 58 dba (2-10 KW), 67 dba (15-30 KW) or 77 dba (40-60 KW). Blow-through design reduces motor operating temperature for longer life. Built-in Controls Include 240/208 volt control circuit (with transformer if necessary), automatic reset thermal cutout, fan override and factory-installed contactor. Power fusing is supplied for heaters over 48 amps. Mounting Bracket Wall and ceiling bracket provided with each unit under 40 KW for horizontal mounting KW heaters furnished with four corner support brackets for ceiling mounting. Installation Requirements For best performance, do not install unit heaters above recommended maximum mounting heights of 2-10 KW, 8-feet; KW, 10-feet; KW, 15-feet. All but KW heaters can be installed at lower mounting heights. Minimum height for KW heaters is 8-feet. Maximum ambient room temperature for proper operation is 85 F. 33

36 F O R C E D - A I R H E A T E R S 926 Series Unit Heater Factory Built-in Options Code Description C Three Pole Contactor D1 Disconnect Switch 40 Amp D2 Disconnect Switch 80 Amp D5 Disconnect Switch 100 Amp G Fusing M Manual Reset R1 24V Relay R2 24V Relay with Transformer (1) T Thermostat (2) U Fan ON Switch V 120V Control, fused secondary and grounded (1) Add option R2 when a low voltage remote thermostat is required. (2) Not available with heater part number 926U10000CA. Field-Installed Options (shipped loose for field installation into heater) Description Diffuser cone (2-10 kw) Diffuser cone (15-30 kw) Diffuser cone (40-60 kw) Thermostat Kit V Relay Kit V Relay Kit with Transformer Remote Room Thermostat See page 99 Dimensions, Airflows and Weights KW A B C D E F G H I Weight In. (mm) In. (mm) In. (mm) In. (mm) In. (mm) In. (mm) In. (mm) In. (mm) In. (mm) lb (kg) 12 (305) 18 (444) 23 (585) 16-1/2 (419) 21-7/8 (556) 25 (641) 17 (432) 23 (572) 34 (870) 14-1/16 (357) 19 (470) 11-7/16 (290) 16 (407) 19 (490) 25 (630) 36-3/8 (924) 12 (305) 12 (305) 12 (305) 4-7/8 (123) 5-13/16 (148) 12 (305) 16-7/8 (428) 23-5/16 (592) 35 (890) 45 (20) 85 (39) 150 (68) Ceiling Bracket Wall Bracket D E G (MIN) 4 Threaded Rods 1/2-13 UNC KW Support Brackets I H A F B C 34

37 Heater Listing KW Volts Phase Total Amps (1) CFM Approximate Air Temperature Rise F ( C) Motor Data HP RPM Voltage 926 Series Unit Heater (5) 1/ /208 HX-926U02000CA (5) 1/ /208 HX-926U02000DA (5) 1/ /208 HX-926U02000JA (5) 1/ /208 HX-926U02000KA (5) 1/ /208 HX-926U02000NA (5) 1/ /208 HX-926U02000TA (5) 1/ /208 HX-926U02000UA (8) 1/ /208 HX-926U03000CA (8) 1/ /208 HX-926U03000DA (8) 1/ /208 HX-926U03000JA (8) 1/ /208 HX-926U03000KA (8) 1/ /208 HX-926U03000NA (8) 1/ /208 HX-926U03000TA (8) 1/ /208 HX-926U04000UA (10) 1/ /208 HX-926U04000CA (10) 1/ /208 HX-926U04000DA (10) 1/ /208 HX-926U04000JA (10) 1/ /208 HX-926U04000KA (10) 1/ /208 HX-926U04000NA (10) 1/ /208 HX-926U04000TA (10) 1/ /208 HX-926U04000UA (13) 1/ /208 HX-926U05000CA 208 3/1* (13) 1/ /208 HX-926U05000DA (13) 1/ /208 HX-926U05000JA 240 3/1* (13) 1/ /208 HX-926U05000KA (13) 1/ /208 HX-926U05000NA (13) 1/ /208 HX-926U05000TA (13) 1/ /208 HX-926U05000UA (19) 1/ /208 HX-926U07500CA 208 3/1* (19) 1/ /208 HX-926U07500DA (19) 1/ /208 HX-926U07500JA 240 3/1* (19) 1/ /208 HX-926U07500KA (19) 1/ /208 HX-926U07500NA (19) 1/ /208 HX-926U07500TA (19) 1/ /208 HX-926U07500UA (25) 1/ /208 HX-926U10000CA (25) 1/ /208 HX-926U10000DA (25) 1/ /208 HX-926U10000JA 240 3/1* (25) 1/ /208 HX-926U10000KA (25) 1/ /208 HX-926U10000TA (25) 1/ /208 HX-926U10000UA (1) Total Amps = Heating element amps and motor amps. Other voltages available. Consult factory. Only available with almond finish. * Can be converted from 3 to 1-phase in the field. F O R C E D - A I R H E A T E R S 35

38 F O R C E D - A I R H E A T E R S 926 Series Unit Heater Heater Listing (cont.) KW Volts Phase Total Amps (1) CFM (1) Total Amps = Heating element amps and motor amps. Other voltages available. Consult factory. Only available with almond finish. Approximate Air Temperature Rise F ( C) Motor Data HP RPM Voltage (20) 1/ /208 HX-926U15000CA (20) 1/ /208 HX-926U15000DA (20) 1/ /208 HX-926U15000JA (20) 1/ /208 HX-926U15000KA (19) 1/ (1 ph) HX-926U15000TA (19) 1/ (1 ph) HX-926U15000UA (27) 1/ /208 HX-926U20000CA (27) 1/ /208 HX-926U20000DA (27) 1/ /208 HX-926U20000JA (27) 1/ /208 HX-926U20000KA (25) 1/ (1 ph) HX-926U20000TA (25) 1/ (1 ph) HX-926U20000UA (34) 1/ /208 HX-926U25000CA (34) 1/ /208 HX-926U25000DA (34) 1/ /208 HX-926U25000JA (34) 1/ /208 HX-926U25000KA (31) 1/ (1 ph) HX-926U25000TA (31) 1/ (1 ph) HX-926U25000UA (38) 1/ (1 ph) HX-926U30000UA (18) 3/ (3 ph) HX-926U40000UA (27) 3/ (3 ph) HX-926U50000UA (36) 3/ (3 ph) HX-926U60000UA 36

39 Applications Basements Entrances Storage Rooms Workshops 924 Series Unit Heater The 924 Series unit heater is an economical choice for commercial heating applications. Compact Design: Ideal for primary or spot heating applications. Units can be wall or ceiling-mounted for horizontal airflow. Versatility: Three different heater KW ratings can be field converted to either 240 or 208 single-phase power. Built-in Adjustable Thermostat: Minimum temperature setting on thermostat can be used to disable the heater. F O R C E D - A I R H E A T E R S Garages Mechanical Rooms Service Areas in Air Handling Units Standard Construction Features Heating Elements Stainless steel tubular elements. Housing Cabinets are constructed of 20-gauge galvanized steel with an almond polyester powder paint finish. Outlet Grille The outlet grille has adjustable louvers to direct airflow and a protective screen for additional safety. Dimensions, Airflows and Weights Watts Volts Phase Total Amps (1) CFM 11" Fan/Motor The fan supplies 300 CFM at 51 dba. The motor is permanently lubricated and totally enclosed. Built-in Controls Automatic reset thermal cutout and adjustable thermostat. Mounting Bracket A universal mounting bracket for either wall or ceiling installation allows for 360 rotation of the heater. Approximate Air Temperature Rise F ( C) Weight lb (kg) 2000/ / / /16 (12/9) 20 (9) HX-924U02000VA 3000/ / / /24 (18/13) 20 (9) HX-924U03000VA 5000/ / /18/ /40 (29/22) 20 (9) HX-924U05000VA (1)Total Amps = Heating element amps and motor amps. Only available with almond finish. 8" 3-1/2" 15-1/2" 12-1/4" 12" 10-1/2" 37

40 F O R C E D - A I R H E A T E R S 928 Series Vertical Unit Heater Applications Aircraft Hangars Factories Garages Gyms High Bay Areas Malls Power Generating Stations Shipping and Receiving Areas Warehouses The 928 Series unit heater is designed to heat buildings with high ceilings. It may also be used to recirculate warm air that builds up near ceilings. 928 Series heaters can be used as primary, supplemental or dual heating systems in commercial or industrial buildings. Vertical Airflow: Suitable for applications in high bay industrial buildings where columns, machinery or warehouse stock would obstruct horizontal air movement. Air Distribution Patterns: Three optional air diffusers produce different air distribution patterns to accommodate various applications. Standard Construction Features Heating Elements Steel finned tubular elements are grounded for extra safety. Housing Cabinet is constructed of 18-gauge galvanized steel with an almond polyester powder paint finish. Fan Motor Quiet, totally enclosed motor is thermally protected. Built-in Controls Contactor, fan override, terminal block for remote fan control and linear automatic reset thermal cutout. Installation Requirements Do not install heater closer than 24 inches from walls and ceiling. Mount heaters out of reach, at least eight feet from the floor. Factory Built-in Options Code Description D1 Disconnect Switch 40A, 600V, 3-Pole D2 Disconnect Switch 80A, 600V, 3-Pole R1 24V Relay R2 24V Relay with Transformer X 120V Control, fused secondary and grounded Remote Room Thermostat See page 99 Field-Installed Options (shipped loose for field installation into heater) Description Single Cone Diffuser 5-10 KW Single Cone Diffuser KW Triple Cone Diffuser 5-10 KW Triple Cone Diffuser KW Jet Cone Diffuser 5-10 KW Jet Cone Diffuser KW V Relay Kit V Relay Kit with Transformer-208V V Relay Kit with Transformer-240V 38

41 Air Distribution Patterns Without Cone H 928 Series Vertical Unit Heater Single Cone H F O R C E D - A I R H E A T E R S S S Triple Cone Jet Cone H H S S Maximum Mounting Height Without Cone Single Cone Triple Cone Jet Cone KW H S H S H S H S Ft (m) Ft (m) Ft (m) Ft (m) Ft (m) Ft (m) Ft (m) Ft (m) (4) 19 (6) 8 (3) 22 (7) 10 (3) 31 (10) 16 (5) 20 (6) (6) 20 (9) 10 (4) 33 (10) 14 (4) 43 (13) 22 (7) 26 (9) 39

42 F O R C E D - A I R H E A T E R S 928 Series Vertical Unit Heater C 24" A 24" B Support Brackets Model (Without Cone) 5-10 KW KW A B C In. (mm) 23-1/8 (587) 30-1/4 (768) In. (mm) 8 (203) 12-3/16 (310) In. (mm) 6-15/16 (176) 6-11/16 (170) 40

43 Heater Listing KW Volts Phase Total Amps (1) CFM Approx. Air Temp. Rise F (C ) Motor Data HP RPM Voltage 928 Series Vertical Unit Heater Weight Ib (kg) (12) 1/ / (34) HX-928C03200UA (19) 1/ / (34) HX-928C04800UA (19) 1/ / (34) HX-928C05000CA (19) 1/ / (34) HX-928C05000DA (19) 1/ / (34) HX-928C05000JA (19) 1/ / (34) HX-928C05000KA (19) 1/ / (34) HX-928C06400UA (22) 1/ / (34) HX-928C07500DA (22) 1/ / (34) HX-928C07500JA (22) 1/ / (34) HX-928C07500KA (14) 1/ / (48) HX-928C09600UA (23) 1/ / (34) HX-928C10000DA (23) 1/ / (34) HX-928C10000JA (23) 1/ / (34) HX-928C10000KA (19) 1/ / (48) HX-928C12800UA (22) 1/ / (48) HX-928C15000DA (22) 1/ / (48) HX-928C15000JA (22) 1/ / (48) HX-928C15000KA (18) 1/ / (48) HX-928C16000UA (21) 1/ / (48) HX-928C19200UA (22) 1/ / (48) HX-928C20000DA (22) 1/ / (48) HX-928C20000JA (22) 1/ / (48) HX-928C20000KA (22) 1/ / (48) HX-928C25000DA (22) 1/ / (48) HX-928C25000JA (22) 1/ / (48) HX-928C25000KA (23) 1/ / (48) HX-928C30000DA (23) 1/ / (48) HX-928C30000JA (23) 1/ / (48) HX-928C30000KA F O R C E D - A I R H E A T E R S (1) Total Amps = Heating element amps and motor amps. Only available with almond finish. 41

44 F O R C E D - A I R H E A T E R S Comparison Chart Wall, Ceiling and Floor Heaters Features Typical Applications Wattage Range Voltages Architectural Wall 933 Series Entryways Offices Reception areas up to 8,000 up to 480/1 Commercial Wall 932 Series Guard houses Offices Stairwells up to 12,000 up to 480/3 European Wall 935 Series Offices Restrooms up to 1,500 up to 240/1 Hybrid Convection 940 Series Offices Restrooms Condominiums up to 2,000 up to 240/1 Wall 934 Series Small offices Storage rooms Register Wall 930 Series Hallways Stairwells up to 2,000 up to 2,000 up to 240/1 up to 240/1 Airflow CFM up to 320 up to 480 up to 70 Convection up to 80 up to 80 Element Type Standard Construction Finish Mounting Steel finned tubular 1/8 thick extruded aluminum grille Polyester powder paint Surface or recessed Steel finned tubular 18-gauge steel grille Polyester powder paint Surface or recessed Steel finned tubular 20-gauge steel grille Polyester powder paint Surface or recessed Fast Response Coil Element Cast Aluminum grille Polyester powder paint Surface or recessed Steel finned tubular 20-gauge steel grille Polyester powder paint Surface or recessed Steel finned tubular 20-gauge steel grille Polyester powder paint Surface or recessed Custom Colors Yes Yes Yes Yes Yes Yes Agency Approvals CSA us CSA us CSA us CSA us CSA us CSA us 42

45 922 Comparison Chart Wall, Ceiling and Floor Heaters F O R C E D - A I R H E A T E R S 938 Cabinet 922 Series Fan-Forced Ceiling 936 Series Fan Forced Ceiling 937 Series Commercial Ceiling 931 Series Toe-Space 938 Series Floor Insert 939 Series Classrooms Hallways Meeting rooms Classrooms Day care Reception areas Classrooms Day care Reception areas Entryways Hallways Restrooms Kitchens Reception areas Under sliding doors Under windows up to 24,000 up to 480/3 up to 10,000 up to 5,000 up to 8,000 up to 1,000 up to 1,500 up to 480/3 up to 480/3 up to 480/1 up to 240/1 up to 240/1 up to 1,000 up to 700 up to 450 up to Steel finned tubular Stainless steel finned tubular aluminum fins Stainless steel finned tubular aluminum fins Steel finned tubular Steel finned tubular Steel finned tubular 18-gauge steel and extruded aluminum grille Polyester powder paint Surface, recessed or ceiling 21-gauge steel grille Polyester powder paint Surface or T-bar 21-gauge steel grille Polyester powder paint Recessed or T-bar 18-gauge steel grille Polyester powder paint Surface, recessed or T-bar 20-gauge steel grille Polyester powder paint Recessed under cabinet 20-gauge steel body and 14-gauge grille Polyester powder paint Recessed in floor Yes Yes Yes Yes Yes Yes CSA us CSA us CSA us CSA us CSA us CSA us 43

46 F O R C E D - A I R H E A T E R S 933 Series Architectural Wall Heater The 933 Series fan-forced wall heater is designed for commercial and industrial areas requiring higher KW ratings and quick recovery. The unit provides a burst of heat in areas affected by cold drafts or wide temperature swings. Efficient Operation: The fan draws air into the top of the grille and discharges warm air downward to distribute heat and keep floors warm and dry. High CFMs create air circulation within the room to provide uniform temperatures. Extended Capacity: The 933 Series is available with one or two modules and ratings up to 8,000 W and 320 CFM. Applications Entryways Garages Guard Houses Offices Reception Areas Restrooms Stairwells Vestibules Standard Construction Features Heating Elements Steel finned tubular elements. Outlet Grille The WAI has an architectural extruded aluminum grille in a choice of eight polyester powder paint finishes. The closely spaced, heavy bar grille design prevents insertion of foreign objects. The tamperproof thermostat adjustment is concealed behind the front cover. Built-in Controls Automatic reset thermal cutout, fan override and tamperproof thermostat (32 to 120 F). Fan Motor Permanently lubricated, totally enclosed fan operates at a low 58 dba. Installation Requirements Standard supply wiring rated at 60 C can be used for installation of wall heaters. Heater must be installed at least ten inches from the floor and adjacent walls. Rough in Dimensions 1500/ Watt heaters: 14-1/2 wide x 19-7/8 high x 4-1/2 deep. 6000/ Watt heaters: 30-3/16 wide x 19-7/8 high x 4-1/2 deep. 44

47 Factory Built-in Options Code Description D1 Disconnect Switch 600V, Three-pole, 40 Amp D3 Disconnect Switch 277V, Double-pole, 20 Amp R1 24 Relay (1) R2 24V Relay with Transformer (1) S3 Fan On/Auto Switch (1) A built-in thermostat will not be supplied when option R1 or R2 are selected. Consult the factory if built-in thermostat is required with these options. Required Wall Depth Opening 4-5/16" 4-3/16" 933 Series Architectural Wall Heater Field-Installed Options (shipped loose for field installation into heater) Description Surface Mounting Box ( W) Surface Mounting Box ( W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit ( W) Add color code to end of catalog number. (See next page for codes.) Remote Room Thermostat See page 99 F O R C E D - A I R H E A T E R S 23" 6,000-8,000 Watts Side View 22-3/4" 1,500-4,800 Watts - Heater Dimensions /8" Double Unit - K.O. 7/ Grille Dimensions Side View Front View (Without Grille) 45

48 F O R C E D - A I R H E A T E R S 933 Series Architectural Wall Heater Heater Listing Built-in tamperproof thermostat is included. Watts Volts (1 Phase) Total Amps (1) CFM Approximate Air Temperature Rise o F ( o C) Weight lb (kg) 1500/ / / /27 (17/12) 24 (11) HX-933U01500V (17) 28 (13) HX-933U01500B (17) 28 (13) HX-933U01500N (17) 28 (13) HX-933U01500T 2000/ / / /30 (22/17) 24 (11) HX-933U02000V (22) 24 (11) HX-933U02000C (22) 28 (13) HX-933U02000N (22) 28 (13) HX-933U02000T 3000/ / / /45 (33/25) 24 (11) HX-933U03000V (33) 28 (13) HX-933U03000N (33) 28 (13) HX-933U03000T 4000/ / / /60 (44/33) 24 (11) HX-933U04000V (44) 24 (11) HX-933U04000C (44) 28 (13) HX-933U04000N (44) 28 (13) HX-933U04000T 4800/ / / /72 (53/40) 24 (11) HX-933U04800V (53) 28 (13) HX-933U04800C (53) 28 (13) HX-933U04800N (53) 28 (13) HX-933U04800T 6000/ / / /45 (33/25) 50 (23) HX-933U06000V (33) 50 (23) HX-933U06000N (33) 50 (23) HX-933U06000T 8000/ / / /60 (44/33) 50 (23) HX-933U08000V (44) 50 (23) HX-933U08000C (44) 50 (23) HX-933U08000N (44) 50 (23) HX-933U08000T (1) Total Amps = Heating element amps and motor amps. All models listed are single-phase. Add color code to end of catalog number. Standard colors. See Color Code Chart below. Color Code Chart Code Color Code Color BZ Bronze BG Beige-Grey AE Metallic Silver W White CM Metallic Charcoal A Almond NR Textured Black AL Aluminum 46

49 932 Series Commercial Wall Heater The 932 Series fan-forced wall heater is designed for commercial and industrial areas requiring higher KW ratings and quick recovery. The unit provides a burst of heat in areas affected by cold drafts or wide temperature swings. Efficient Operation: The fan draws air into the top of the grille and discharges warm air downward to distribute heat and keep floors warm and dry. High CFM s create air circulation within the room to provide uniform temperatures. Extended Capacity: The 932 Series is available with one, two or three modules and ratings up to 12,000 W at 480 CFM. F O R C E D - A I R H E A T E R S Applications Entryways Garages Guard Houses Offices Reception Areas Restrooms Stairwells Vestibules Standard Construction Features Heating Elements Steel finned tubular elements. Outlet Grille The 932 Series has an 18-gauge steel grille with rounded corners and a polyester powder paint finish in white or almond. The external thermostat adjustment knob can be replaced with the concealing plug provided for tamperproof construction. Built-in Controls Automatic reset thermal cutout, fan override and thermostat (32 to 120 F). Fan Motor Permanently lubricated, totally enclosed fan operates at a low 58 dba. Installation Requirements Standard supply wiring rated at 60 C can be used for installation of wall heaters. Heater must be installed at least ten inches from the floor and adjacent walls. Rough in Dimensions 1500/ Watt heaters: 14-1/2 wide x 19-7/8 high x 4-1/2 deep. 6000/ Watt heaters: 30-3/16 wide x 19-7/8 high x 4-1/2 deep / Watt heaters: 46-5/8 wide x 19-7/8 high x 4-1/2 deep. 47

50 F O R C E D - A I R H E A T E R S 932 Series Commercial Wall Heater Factory Built-in Options Code Description D1 Disconnect Switch 600V, Three-pole, 40 Amp D2 Disconnect Switch, 600V, Three-pole 80 Amp D3 Disconnect Switch 277V, Double-pole, 20 Amp R1 24 Relay (1) R2 24V Relay with Transformer (1) S3 Fan On/Auto Switch (1) A built-in thermostat will not be supplied when option R1 or R2 are selected. Consult the factory if built-in thermostat is required with these options. Remote Room Thermostat See page 99 Required Wall Depth Opening 4-5/16" 4-3/16" Field-Installed Options (shipped loose for field installation into heater) Description Surface Mounting Box ( W) Surface Mounting Box ( W) Surface Mounting Box (12000 W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit (12000 W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit ( W) Semi Recessed Trim Kit (12000 W) Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 23" Side View Grille Dimensions 1,500-4,800 Watts 16-1/8" 6,000-8,000 Watts 12,000 Watts 31-7/8" 48-5/16" 22-1/16" 1-5/16" Side View 14-7/16" 8-5/16" 2" 30-3/16" 46-5/8" 2-7/8" Top View 2-3/16" 2" 2" K.O. 7/ 1-5/16" 1-5/16" 19-7/8" 48 Side View Front View (Without Grille)

51 932 Series Commercial Wall Heater Heater Listing Adjustable thermostat is included. A hole plug is provided for tamperproof installations. Watts Volts Phase Total Amps (1) CFM Approximate Air Temperature Rise o F ( o C) (1) Total Amps = Heating element amps and motor amps. (2) Single-phase is available upon request, consult factory All models listed are single-phase unless otherwise specified. Other voltages available. Consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. Weight lbs (kg) 1500/ / / /22 (17/12) 24 (11) HX-932U01500V (17) 28 (13) HX-932U01500B (17) 28 (13) HX-932U01500N (17) 28 (13) HX-932U01500T 2000/ / / /30 (22/17) 24 (11) HX-932U02000V (22) 24 (11) HX-932U02000C (22) 28 (13) HX-932U02000N (22) 28 (13) HX-932U02000T 3000/ / / /45 (33/25) 24 (11) HX-932U03000V (33) 28 (13) HX-932U03000N (33) 28 (13) HX-932U03000T 4000/ / / /60 (44/33) 24 (11) HX-932U04000V (44) 24 (11) HX-932U04000C (44) 28 (13) HX-932U04000N (44) 28 (13) HX-932U04000T 4800/ / / /72 (53/40) 24 (11) HX-932U04800V (53) 28 (13) HX-932U04800C (53) 28 (13) HX-932U04800N (53) 28 (13) HX-932U04800T 6000/ / / /45 (33/25) 50 (23) HX-932U06000V (33) 50 (23) HX-932U06000N (33) 50 (23) HX-932U06000T 8000/ / / /60 (44/33) 50 (23) HX-932U08000V (44) 50 (23) HX-932U08000C (44) 50 (23) HX-932U08000N (44) 50 (23) HX-932U08000T 12000/ /208 3(2) 28.9/ (44) 90 (41) HX-932U12000P (44) 90 (41) HX-932U12000D (44) 90 (41) HX-932U12000K (44) 90 (41) HX-932U12000N (44) 90 (41) HX-932U12000T (44) 90 (41) HX-932U12000U F O R C E D - A I R H E A T E R S 49

52 F O R C E D - A I R H E A T E R S 935 Series European Style Wall Heater (Shown with optional thermostat & timer) Applications Entryways Fire Station Changing Areas Offices Reception Areas Restrooms Standard Construction Features Heating Elements Stitched ribbon-type element. Outlet Grille The 20-gauge steel grille has a polyester powder paint finish available in white, almond, black or optional stainless steel front cover. Built-in Controls Automatic reset thermal cutout prevents overheating. 1-1/2" K.O. 1/4" The 935 Series wall heater has a stylish, contemporary design with rounded corners and soft lines for an elegant appearance. This heater is ideal for areas with space restrictions and high heating requirements. Unique Element Design: Stitched ribbon-type heating element provides instant heat for areas that need to be warmed quickly. Three Models: The standard single-stage heater is controlled by an optional remote line-voltage thermostat. Heater type T has a two-stage thermostat which automatically switches from minimum to maximum wattages as needed. Heater type TZ is furnished with an additional 0-60 minute mechanical timer that provides manual operation at maximum wattage during occupied periods, then resumes normal two-stage control. Installation Flexibility: The heater can be recessed in a 2-inch by 3-inch stud wall or surface mounted without the use of adapters. Fan Motor Two-speed whisper-quiet squirrel-cage fan operates at 33 dba with 35 CFM and 42.5 dba with 70 CFM. Installation Requirements The air outlet should be installed a minimum of 12-inches above vinyl floors. Rough In Dimensions All heaters: 11-5/8 wide x 15-1/2 high x 2 deep /2" 6-15/16" 3" 16-1/2 14-7/8 K.O. 7/8" 13-3/16" 4-5/16" 2" 4" 2" 3/4" 50 K.O. 7/8" 1-5/8" Heater Listing Recessed Wall-Mounted Remote Room Thermostat See page 99 Watts Volts Total CFM Maximum Air Weight Minimum Maximum (1 Phase) Amps (1) Minimum Maximum Temperature lb (kg) (38) 14 (6) HX-935U01500B (38) 14 (6) HX- 935U01500B-T (38) 14 (6) HX- 935U01500B-TZ / / / /51 (38/28) 14 (6) HX-935U01500V 750/ / / / /51 (38/28) 14 (6) HX-935U01500V-T 750/ / / / /51 (38/28) 14 (6) HX-935U01500V-TZ (1) Total Amps = Heating element amps and motor amps. Add W to end of catalog number for white finish, A for almond, BK for black or SS for custom stainless steel front cover. Special or custom colors - See inside back cover for color codes to be added to end of catalog number.

53 Applications Entryways Fire Station Changing Areas Offices Reception Areas Restrooms Standard Construction Features Heating Elements Instant heat nickel-chrome coil resistant wire element. Outlet Grille Heavy cast aluminum front cover with steel bar inlet and outlet grilles has a polyester powder paint finish available in white or almond. Built-in Controls Digital display electronic thermostat with timer, automatic reset thermal cutout, temperature sensor and LED night light with on-off switch. 940 Series Hybrid Convection Wall Heater The 940 Series wall heater is a unique design and offers two levels of heating. The first level is convection heat with a second level of forced-air heating. This feature combines the quiet operation of convection heating for normal heating conditions and when needed a boost to forced-air heating with greater heating capacity, all in the same unit. This is well suited for condominiums when an up scale appearance is required. Unique Temperature Control: Built-in digital thermostat with full modulating power for convection to fan-forced heating. The power level is automatically managed by the thermostat through the full output of the heater. The electronic thermostat displays actual room temperature, with adjustable temperature settings between 50 and 95 F (10 to 35 C). When the heater is on, four graduated lines indicate the power level on the display. Manual Power Boost: To override the automatic temperature control the heater can be easily switched into the boost heat level using the built-in timer. Boost power can be set for 5, 10, 15, 20, 25 or 30 minutes. Mounting: The heater can be recessed in a 2-inch by 3-inch stud wall, surface mounted or surface mounted with a color matched surface mounting box. Fan motor Whisper-quiet squirrel-cage fan with factorylubricated motor. Installation Requirements Do not install heater covered with vinyl. Maintain a minimum of 4-inches (102 mm) clearance below heater, 1-inch (25 mm) to adjacent walls and 48-inches (1219 mm) in front of heater. Rough In Dimensions All heaters: 18-5/8 wide x 13-3/8 high x 2-3/4 deep. F O R C E D - A I R H E A T E R S 42 mm 1 5/8" KOE Ø 22 mm KOE Ø 7/8" 550 mm 21 5/8" 20 mm 3/4" 70 mm 2 3/4" 15 mm 9/16" KOE Ø 6.4 mm KOE Ø 1/4" KOE Ø 22 mm KOE Ø 7/8" 369 mm 14 1/2" 332 mm 13 1/16" 380 mm 15" 550 mm 21 5/8" 470 mm 18 1/2" 140 mm 5 1/2" Heater Listing Watts Volts (1 Ph) 350 mm 13 3/4" Amps Weight lb (kg) 38 mm 1 1/2" (10.3) HX-940U01500B (10.3) HX-940U02000J Standard colors Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors See inside of back cover for color codes to be added to end of catalog number. 337 mm 13-1/4" Front view Side view Bottom view Recessed W all-mounte Factory Built-in Options Code D3 Description Disconnect Switch, 277V, Double-pole, 20 Amp Field-Installed Options Description Cast Aluminum Surface Mounting Box Standard colors Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors See inside of back cover for color codes to be added to end of catalog number. 51

54 F O R C E D - A I R H E A T E R S 934 Series Wall Heater Applications Breezeways The 934 Series wall heater is designed for recessed mounting into shallow 2-inch by 3-inch stud walls. It provides heat in a quiet, efficient manner. Single units can heat small areas and multiple heaters can be used in large or oddshaped rooms. Mounting Options: Units can be surface (with optional box) or recessed mounted, vertically or horizontally, in one of four positions. A tapered recess box assures a tight fit when mounted into the wall. Entryways Restrooms Small Offices Storage Rooms Standard Construction Features Heating Elements Steel finned tubular elements. Outlet Grille The louvered front grille is made from 22-gauge steel with rounded corners. The grille is finished with a polyester powder paint in white or almond. Built-in Controls Automatic reset thermal cutout. Fan Motor Quiet, permanently lubricated axial fan operates at 38 dba at 40 CFM for models up to 1,000 W and 41.3 dba at 80 CFM for all models rated above 1,000 W. Installation Requirements - The air outlet should be installed a minimum of ten inches above vinyl floors. Rough In Dimensions All heaters: 7-3/16 wide x 14-1/8 high x 3 deep. Factory Built-in Options Code Description D3 Disconnect Switch, 277V, Double-pole, 20 Amp T1 Tamperproof Thermostat, Single-pole, 17 Amp T2 Tamperproof Thermostat, Double-pole, 17 Amp T5 Adjustable Thermostat, Single-pole, 17 Amp T6 Adjustable Thermostat, Double-pole, 17 Amp Double-pole thermostats include positive off feature. Remote Room Thermostat See page 99 Field-Installed Options (shipped loose for field installation into heater) Description Surface Mounting Box Adjustable Thermostat Kit, Single-pole, 17 Amp Tamperproof Thermostat Kit, Single-pole, 17 Amp Adjustable Thermostat Kit, Double-pole, 17 Amp Tamperproof Thermostat Kit, Double-pole, 17 Amp Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 52

55 3" 3 3" 3 2 x 3 Stud Wall Mounting Positions Wall Opening 14-1/8 Surface Box 8-5/ Series Wall Heater Optional Surface Mounting 7-3/16 7-1/ /8 Heater 8-1/8 Grille 16 F O R C E D - A I R H E A T E R S Heater Dimensions Heater Listing Watts Volts (1 Phase) Total Amps (1) CFM Approximate Air Temperature Rise F ( C) (1) Total Amps = Heating element amps and motor amps. Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. Weight lb (kg) (22) 9 (4) HX-934U00500B 500/ / / /30 (22/17) 9 (4) HX-934U00500V (33) 9 (4) HX-934U00750B 750/ / / /45 (33/25) 9 (4) HX-934U00750V (44) 9 (4) HX-934U01000B 1000/ / / /60 (44/33) 9 (4) HX-934U01000V (28) 9 (4) HX-934U01250B 1250/ / / /37 (28/21) 9 (4) HX-934U01250V (33) 9 (4) HX-934U01500B 1500/ / / /45 (33/25) 9 (4) HX-934U01500V 2000/ / / /60 (44/33) 9 (4) HX-934U02000V (44) 9 (4) HX-934U02000C 53

56 F O R C E D - A I R H E A T E R S 930 Series Register Wall Heater Applications Hallways Restrooms Stairwells (Shown with optional built-in thermostat) The 930 Series register wall heater is ideal for use as a primary heat source in small areas or as supplemental heat in more spacious areas. Multiple heaters can be used to effectively heat large or oddshaped rooms. Installation Options: Units are designed for recessed mounting into shallow 2-inch by 3-inch stud walls or surface mounting with the use of an optional box. Safety: Finned tubular elements provide electrical isolation from accidental contact. Temperature Control: An optional thermostat can be field installed in the heater or a remote thermostat can be used. Standard Construction Features Heating Elements Steel finned tubular elements. Outlet Grille The louvered front grille is made from 20-gauge steel. The grille is finished with polyester powder paint in white or almond. Built-in Controls Automatic reset thermal cutout. Fan Motor Quiet, factory lubricated fan operates at 38 dba at 40 CFM for models up to 1,000 W and 41.3 dba at 80 CFM for all models rated above 1,000 W. Installation Requirements The air outlet should be installed a minimum of ten inches above vinyl floors. Rough In Dimensions All heaters: 14-1/8 wide x 7-3/16 high x 3 deep. Factory Built-in Options Code Description D3 Disconnect Switch, 277V, Double-pole, 20 Amp T1 Tamperproof Thermostat, Single-pole, 17 Amp T2 Tamperproof Thermostat, Double-pole, 17 Amp T5 Adjustable Thermostat, Single-pole, 17 Amp T6 Adjustable Thermostat, Double-pole, 17 Amp Double-pole thermostats include positive off feature. Remote Room Thermostat See page 99 Field-Installed Options (shipped loose for field installation into heater) Description Surface Mounting Box Adjustable Thermostat Kit, Single-pole, 17 Amp Tamperproof Thermostat Kit, Single-pole, 17 Amp Adjustable Thermostat Kit, Double-pole, 17 Amp TamperproofThermostatKit,Double-pole,17Amp Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 54

57 3" Wall-Mounted 3" 7-3/16" 14-1/8" 8-1/8" Wall Opening 16" 3" 930 Series Register Wall Heater Optional Surface Mounting Surface Box 13-7/8" Heater 8-1/8" Grille F O R C E D - A I R H E A T E R S 7-1/16" 16" Heater Dimensions Heater Listing Watts / / / / / /1500 Volts (1 Phase) / / / / / /208 Total Amps (1) / / / / / /7.4 CFM Approximate Air Temperature Rise F ( C) 40 (22) 40/30 (22/17) 60 (33) 60/45 (33/25) 80 (44) 80/60 (44/33) 50 (28) 50/37 (28/21) 60 (33) 60/45 (33/25) 80 (44) 80/60 (44/33) Weight lb (kg) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) 9 (4) HX-930U00500B HX-930U00500V HX-930U00750B HX-930U00750V HX-930U01000B HX-930U01000V HX-930U01250B HX-930U01250V HX-930U01500B HX-930U01500V HX-930U02000C HX-930U02000V (1) Total Amps = Heating element amps and motor amps. Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 55

58 F O R C E D - A I R H E A T E R S 922 Series Cabinet Unit Heater Applications Classrooms Hallways Meeting Rooms Lobbies Stairways Corridors Waiting Rooms Entry Ways The 922 Series cabinet heater offers a unique combination of quality, efficiency, reliability and flexibility. The attractive cabinet design blends into any commercial decor. Mounting Options: The cabinet heater can be mounted on the floor, wall or ceiling. It can also be recessed into the wall or ceiling as required. Twelve air inlet and outlet combinations are available. Simplified Maintenance: The insulated front panel is hinged to allow for easy access. Quiet Operation: The blower wheel is mounted directly on the motor shaft to reduce the noise level. Fresh Air Inlet: Manual or optional power-operated inlet allows fresh air to enter through the rear of the heater and mix with re-circulated room air. Standard Construction Features Heating Elements Industrial grade steel finned tubular elements. Housing Cabinet is constructed of 18-gauge steel with an polyester powder paint finish in white or almond. Outlet Grille An extruded architectural style aluminum grille discourages tampering with the heating element. The grille can be field converted for front or top air discharge. Built-in Controls Automatic reset thermal cutout and fan delay. Power fusing is supplied for heaters over 48 amps. Fan Motor The squirrel cage fan is beltless and two-speed, operating at 48 dba at low speed and 50 dba at high speed. Fan motors have permanently lubricated sleeve bearings for trouble-free service. Installation Requirements For best performance, do not install cabinet heaters above recommended maximum mounting height of ten feet. Rough In Dimensions Recess mounting only: Heater Length + 1 wide x 27 high x 12 deep. 56

59 Factory Built-in Options Code Description A1 Fresh Air Inlet (1) A2 Power Operated Fresh Air Inlet (1) D1 Disconnect Switch 600V, Three-pole, 40 Amp D2 Disconnect Switch 600V, Three-pole, 80 Amp G Fusing M Manual Reset N1 2-Speed Motor w/high-low Switch (2) N2 2-Speed Motor w/high-low Relay-24 (1) (2) (3) R1 24V Relay R2 24V Relay with Transformer 28 (711) S Smooth Finish on Heater Back 48 (1219) Heater Length - In. (mm) 66 (1677) 80 (2032) S1 On/Auto Fan Relay-24V S2 24V On/Standby Heating Relay with Transformer S3 On/Auto Fan Switch S4 On/Standby Heating Switch T1 Tamperproof Thermostat, 1-Stage, Single-pole T7 Tamperproof Thermostat, 2-Stage (4) (1) Do not install built-in thermostat with these options. (2) To obtain the minimum ratings, it is necessary to add the optional N1 two-speed motor with high/low switch for manual operation or option N2 two-speed motor with high/low relay-24 Volt. The N2 can be connected to a remote two-stage, wall-mounted thermostat or field-furnished low voltage device for maximum/minimum control. (3) Option N2 is required for two-stage remote thermostat operation. (4) When choosing Option T7; A1, A2, N1, N2, R1, R2 & T1 are unavailable. Remote Room Thermostat See page Series Cabinet Unit Heater Field-Installed Options (shipped loose for field installation into heater) Description Heater Length In. (mm) (711) (1219) Sub Base (1676) (2032) (711) (1219) Recess Trim Kit (1676) (2032) P 28 (711) Permanent/Washable P 48 (1219) Air Filters P 66 (1676) (Wall Installation Only) P 80 (2032) (711) Replaceable Throwaway (1219) Air Filters (1676) (Wall Installation Only) (2032) (711) Smooth Finish on Heater (1219) Back Kit (1676) Heater Length In (mm) (2032) Top Air Discharge Tamperproof single-pole thermostat kit Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of A1 part number. B1 C1 D1 Bottom Air Discharge F O R C E D - A I R H E A T E R S Mounting Applications A2 B2 C2 D2 Top Air Discharge Ceiling A1 B1 C1 D1 A3 B3 C3 D3 Bottom Air Discharge Ceiling Wall Ceiling A2 B2 C2 D2 Semi-recessed Recessed Semi-recessed Recessed D3 type mounting only D1 or D2 type mounting only Ceiling A3 B3 Wall C3 D3 57

60 F O R C E D - A I R H E A T E R S Series Cabinet Unit Heater 27" WWall Opening O 26" Length + 1" Heater Listing K.O. 1-3/4-1-3/8" 2-1/16" 2" Bottom Bottom View View 6-3/16" K.O. 1-1/8-7/8" FrontView View 3-5/16" 1-1/2" 7-3/8" 2-1/2" K.O. 1/4" Watts (1) Total Amps (2) CFM Volts Phase Max. Min. Max. Min. Max. Min Installation 2" With A Sub Base Installation With Recess Trim Kit Recessed Semi-Recessed Maximum recommended installation height: 10 feet. Approximate Air Temp. Rise F ( C) Heater Length In. (mm) Weight Lbs (kg) (1) To obtain the minimum ratings it is necessary to add the optional N1 two-speed motor with high/low switch for manual operation or option N2 twospeed motor with high/low relay-24 volt. The N2 can be connected to a remote two-stage, wall-mounted thermostat or field furnished low voltage device for maximum/minimum control. (2) Total Amps = Heating element amps and motor amps. Other voltages available. Consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. Specify mounting application code when ordering (see page 57). Surface Installation (14) 28 (711) 115 (52) HX-922U02000C (14) 28 (711) 115 (52) HX-922U02000D (14) 28 (711) 115 (52) HX-922U02000J (14) 28 (711) 115 (52) HX-922U02000K (14) 28 (711) 115 (52) HX-922U02000N (14) 28 (711) 115 (52) HX-922U02000U (21) 28 (711) 115 (52) HX-922U03000C (21) 28 (711) 115 (52) HX-922U03000D (21) 28 (711) 115 (52) HX-922U03000J (21) 28 (711) 115 (52) HX-922U03000K (21) 28 (711) 115 (52) HX-922U03000N (21) 28 (711) 115 (52) HX-922U03000U (28) 28 (711) 115 (52) HX-922U04000C (28) 28 (711) 115 (52) HX-922U04000D (28) 28 (711) 115 (52) HX-922U04000J (28) 28 (711) 115 (52) HX-922U04000K (28) 28 (711) 115 (52) HX-922U04000N (28) 28 (711) 115 (52) HX-922U04000U (36) 28 (711) 115 (52) HX-922U05000C (36) 28 (711) 115 (52) HX-922U05000D (36) 28 (711) 115 (52) HX-922U05000J (36) 28 (711) 115 (52) HX-922U05000K (36) 28 (711) 115 (52) HX-922U05000N (36) 28 (711) 115 (52) HX-922U05000U (43) 28 (711) 115 (52) HX-922U06000C (43) 28 (711) 115 (52) HX-922U06000D (43) 28 (711) 115 (52) HX-922U06000J (43) 28 (711) 115 (52) HX-922U06000J (43) 28 (711) 115 (52) HX-922U06000N (43) 28 (711) 115 (52) HX-922U06000U 10 2

61 Heater Listing (continued) Watts (1) Total Amps (2) CFM Volts Phase Max. Min. Max. Min. Max. Min Approximate Air Temp. Rise F ( C) 922 Series Cabinet Unit Heater Heater Length In. (mm) Weight Lbs (kg) (28) 48 (1219) 146 (66) HX-922U08000C (28) 48 (1219) 146 (66) HX-922U08000D (28) 48 (1219) 146 (66) HX-922U08000J (28) 48 (1219) 146 (66) HX-922U08000K (28) 48 (1219) 146 (66) HX-922U08000N (28) 48 (1219) 146 (66) HX-922U08000U (36) 48 (1219) 146 (66) HX-922U10000C (36) 48 (1219) 146 (66) HX-922U10000D (36) 48 (1219) 146 (66) HX-922U10000J (36) 48 (1219) 146 (66) HX-922U10000K (36) 48 (1219) 146 (66) HX-922U10000N (36) 48 (1219) 146 (66) HX-922U10000U (43) 48 (1219) 146 (66) HX-922U12000C (43) 48 (1219) 146 (66) HX-922U12000D (43) 48 (1219) 146 (66) HX-922U12000J (43) 48 (1219) 146 (66) HX-922U12000K (43) 48 (1219) 146 (66) HX-922U12000N (43) 48 (1219) 146 (66) HX-922U12000U (35) 66 (1677) 210 (96) HX-922U15000C (35) 66 (1677) 210 (96) HX-922U15000D (35) 66 (1677) 210 (96) HX-922U15000J (35) 66 (1677) 210 (96) HX-922U15000K (35) 66 (1677) 210 (96) HX-922U15000U (43) 66 (1677) 210 (96) HX-922U18000C (43) 66 (1677) 210 (96) HX-922U18000D (43) 66 (1677) 210 (96) HX-922U18000J (43) 66 (1677) 210 (96) HX-922U18000K (43) 66 (1677) 210 (96) HX-922U18000U (36) 80 (2032) 240 (109) HX-922U20000C (36) 80 (2032) 240 (109) HX-922U20000D (36) 80 (2032) 240 (109) HX-922U20000J (36) 80 (2032) 240 (109) HX-922U20000K (36) 80 (2032) 240 (109) HX-922U20000U (43) 80 (2032) 240 (109) HX-922U24000D (43) 80 (2032) 240 (109) HX-922U24000J (43) 80 (2032) 240 (109) HX-922U24000K (43) 80 (2032) 240 (109) HX-922U24000U (1) To obtain the minimum ratings it is necessary to add the optional N1 two-speed motor with high/low switch for manual operation or option N2 twospeed motor with high/low relay-24 volt. The N2 can be connected to a remote two-stage, wall-mounted thermostat or field furnished low voltage device for maximum/ minimum control. (2) Total Amps = Heating element amps and motor amps. Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. Specify mounting application code when ordering (see page 57). F O R C E D - A I R H E A T E R S 59

62 F O R C E D - A I R H E A T E R S 936/937 Series Fan-Forced Ceiling Heater 936 Series Surface Mounting Downward Discharge Uniform Circulation 937 Series Recessed Mounting Applications Classrooms Day Care Entryways Guard Houses Hallways Lobbies The 936/937 ceiling heaters are designed for commercial applications. 936 Series heaters are designed for surface mounting and most can be adapted for T-Bar installation with an optional kit. The 937 Series heater is designed for recessed mounting and installation into 2-feet by 2-feet ceiling grids. The 937 Series comes with a built-in flange; an additional trim ring kit is not required. Enhanced Performance: These heaters set new industry standards with ratings up to 10,000 W and 700 CFM in single and three-phase 208, 240 and 480 voltages. Increased Comfort: The side draw-through inlet with down discharge promotes circulation within the space for uniform temperatures and increased comfort. Offices Reception Areas Restrooms Vestibules Workshops 60 Standard Construction Features Heating Elements Stainless steel tubular elements with aluminum fins. Outlet Grille The grille is made of 20-gauge galvanized steel and is finished with a polyester powder paint in white or almond. Built-in Controls Automatic reset thermal cutout and fan delay relay. Factory Built-in Options Code D1 D2 D3 R1 R2 S3 S5 S6 T1 X Description Disconnect Switch 600V, Three-pole, 40 Amp Disconnect Switch 600V, Three-pole, 80 Amp Disconnect Switch 277V, Double-pole, 20 Amp 24V Control Relay 24V Control Relay with Transformer Summer Fan Switch and Pilot Light Summer Fan 24V Relay for Remote Switching and Pilot Light (Switch not included) Summer Fan 240V Relay for Remote Switching and Pilot Light (Switch not included) Tamperproof Thermostat 120V Control, fused secondary and grounded Fan Motor Quiet, direct drive aluminum fan and totally enclosed motor with lifetime lubricated ball bearings. Installation Requirements For best performance, ceiling heaters should be installed between 8 and 12-feet above the floor. Rough In Dimensions 937 Series Only: 23 wide x 23 high x 6 deep. Field-Installed Options (shipped loose for field installation into heater) Description Tamperproof Thermostat Kit T-Bar Adaptor for CDI surface mounting 2000 through 5000 watt heaters only V Control Relay Kit Add W to end of catalog number for white finish or add A for almond finish. Remote Room Thermostat See page 99

63 936/937 Series K.O. 1-1/8 7/8" K.O. 1/4" 2-3/4" 1-7/8" 2-1/2" 1-9/16" K.O. 1-1/8/ 7/8" K.O.1/4 5-11/16" 5" 5-5/8" 4-3/4" 22-5/8" 1-3/16" 2-1/1 6-1/2" 16-3/8" 936 Series 2,000-5,000 Watt Surface Mounting 1-7/8 1-9/16" 6-1/2" 7-15/16" 6-1/2" 7-15/16" 23-7/8" 22-5/16" 23-7/8" 16-3/8" 937 Series 2,000-5,000 Watt Recessed Mounting K.O.1/4 2-3/4" 2-1/2" H E A T E R S 7-5/16" K.O. 1-1/8/ 7/8 F O R C E D - A I R Fan-Forced Ceiling Heater 22-5/16" 936 Series 7,500-10,000 Watt Surface Mounting 1 Hanger Clips 936 Series Surface Mounting for 7,500 to 10,000 Watt Heaters Series Recessed Mounting 936 Series Surface Mounting for 2,000 to 5,000 Watt Heaters 61

64 F O R C E D - A I R H E A T E R S 936/937 Series Fan-Forced Ceiling Heater Surface Mounting Heater Listing Watts Volts Phase Total Amps (1) (1) Total Amps = Heating element amps and motor amps. CFM Add W to end of catalog number for white finish or add A for almond finish. Approximate Air Temperature Rise F ( C) Weight lb (kg) Special or custom colors - See inside back cover for color codes to be added to the end of the catalog number (8) 25 (11.3) HX-936U02000C (8) 25 (11.3) HX-936U02000D (8) 25 (11.3) HX-936U02000J (8) 25 (11.3) HX-936U02000K (8) 25 (11.3) HX-936U02000N (8) 25 (11.3) HX-936U02000T (8) 25 (11.3) HX-936U02000U (12) 25 (11.3) HX-936U03000C (12) 25 (11.3) HX-936U03000D (12) 25 (11.3) HX-936U03000J (12) 25 (11.3) HX-936U03000K (12) 25 (11.3) HX-936U03000N (12) 25 (11.3) HX-936U03000T (12) 25 (11.3) HX-936U03000U (16) 25 (11.3) HX-936U04000C (16) 25 (11.3) HX-936U04000D (16) 25 (11.3) HX-936U04000J (16) 25 (11.3) HX-936U04000K (16) 25 (11.3) HX-936U04000N (16) 25 (11.3) HX-936U04000T (16) 25 (11.3) HX-936U04000U (19) 25 (11.3) HX-936U05000C (19) 25 (11.3) HX-936U05000D (19) 25 (11.3) HX-936U05000J (19) 25 (11.3) HX-936U05000K (19) 25 (11.3) HX-936U05000N (19) 25 (11.3) HX-936U05000T (19) 25 (11.3) HX-936U05000U (19) 34 (15.4) HX-936U07500C (19) 34 (15.4) HX-936U07500D (19) 34 (15.4) HX-936U07500J (19) 34 (15.4) HX-936U07500K (19) 34 (15.4) HX-936U07500N (19) 34 (15.4) HX-936U07500T (19) 34 (15.4) HX-936U07500U (26) 34 (15.4) HX-936U09900C (26) 34 (15.4) HX-936U09900D (26) 34 (15.4) HX-936U10000J (26) 34 (15.4) HX-936U10000K (26) 34 (15.4) HX-936U10000N (26) 34 (15.4) HX-936U10000T (26) 34 (15.4) HX-936U10000U 62

65 Recessed Mounting Heater Listing Watts Volts Phase 2000 Total Amps (1) CFM 936/937 Series Fan-Forced Ceiling Heater Approximate Air Temperature Rise F ( C) Weight lb (kg) (8) 31 (14) HX-937U02000C (8) 31 (14) HX-937U02000D (8) 31 (14) HX-937U02000J (8) 31 (14) HX-937U02000K (8) 31 (14) HX-937U02000N (8) 31 (14) HX-937U02000T (8) 31 (14) HX-937U02000U (12) 31 (14) HX-937U03000C (12) 31 (14) HX-937U03000D F O R C E D - A I R H E A T E R S (12) 31 (14) HX-937U03000J (12) 31 (14) HX-937U03000K (12) 31 (14) HX-937U03000N (12) 31 (14) HX-937U03000T (12) 31 (14) HX-937U03000U (16) 31 (14) HX-937U04000C (16) 31 (14) HX-937U04000D (16) 31 (14) HX-937U04000J (16) 31 (14) HX-937U04000K (16) 31 (14) HX-937U04000N (16) 31 (14) HX-937U04000T (16) 31 (14) HX-937U04000U (19) 31 (14) HX-937U05000C (19) 31 (14) HX-937U05000D (19) 31 (14) HX-937U05000J (19) 31 (14) HX-937U05000K (19) 31 (14) HX-937U05000N (19) 31 (14) HX-937U05000T (19) 31 (14) HX-937U05000U (1) Total Amps = Heating element amps and motor amps. Add W to end of catalog number for white finish or add A for almond finish. Special or custom colors - See inside back cover for color codes to be added to the end of the catalog number. 63

66 F O R C E D - A I R H E A T E R S 931 Series Commercial Ceiling Heater Applications Entryways Garages Hallways Restrooms Stairwells Vestibules The 931 Series ceiling heater is designed for commercial use in areas where no wall space is available. It provides supplemental heat to prevent cold drafts or wide temperature swings. Extended Capacity: Heaters are available as single or double modules with ratings up to 8,000 W and 320 CFM in 480 volt single-phase. Control Options: Heaters can be controlled by a building management system with the addition of a low voltage relay. Flexible Mounting: Units can be surface, (with optional surface mounting box) recessed or installed in T-Bar ceiling systems. 64 Standard Construction Features Heating Elements Steel finned tubular elements. Outlet Grille The louvered front grille is made of 18-gauge steel with rounded corners. The grille is finished with a polyester powder paint in white or almond. Built-in Controls Automatic reset thermal cutout, fan override and 240 volt standard control, with contactor when required. Factory Built-in Options Code D1 D3 R1 R2 T1 T2 Description Disconnect Switch 600V, Three-pole, 40 Amp Disconnect Switch 277V, Double-pole, 20 Amp 24V Control Relay 24V Control Relay with Transformer Built-in Tamperproof Thermostat Adjustable Thermostat Remote Room Thermostat See page 99 Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. Fan Motor Permanently lubricated, open and ventilated fan. Installation Requirements For best performance, do not install ceiling heaters above recommended maximum mounting height of ten feet. Heater must be installed at least ten inches from adjacent walls. Rough In Dimensions 1500/ Watt heaters: 14-1/2 wide x 19-7/8 high x 4-1/2 deep. 6000/ Watt heaters: 30-3/16 wide x 19-7/8 high x 4-1/2 deep. Field-Installed Options (shipped loose for field installation into heater) Description Surface Mounting Box ( W) Surface Mounting Box ( W) Thermostat Kit V Control Relay Kit V Control Relay with Transformer, 208V Kit V Control Relay with Transformer, 240V Kit V Control Relay with Transformer, 277V Kit T-Bar Adapter 23-3/4 x 23-3/4 ( W) T-Bar Adapter 23-3/4 x 23-3/4 ( W) Extruded Aluminum Front Grille ( W) Extruded Aluminum Front Grille ( W) Surface Mounting Box for Aluminum Front Grille ( W) Surface Mounting Box for Aluminum Front Grille ( W)

67 Heater Listing Watts Volts (1 Phase) 1500/ / / / / / / / / / / / (1) Total Amps includes motor amps. Total Amps (1) 6.6/ / / / / / CFM Approximate Air Temperature Rise F ( C) 30/27 (17/12) 30 (17) 30 (17) 40/30 (22/17) 40 (22) 40 (22) 60/45 (33/25) 60 (33) 60 (33) 80/60 (44/33) 80 (44) 80 (44) 80 (44) 60/45 (33/25) 60 (33) 60 (33) 80/60 (44/33) 80 (44) 80 (44) 80 (44) Standard colors - Add W for white finish or A for almond finish to the end of catalog number. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 931 Series Commercial Ceiling Heater Weight lb (kg) 20 (9) 26 (12) 26 (12) 20 (9) 26 (12) 26 (12) 20 (9) 26 (12) 26 (12) 20 (9) 20 (9) 26 (12) 26 (12) 40 (18) 52 (24) 52 (24) 40 (18) 40 (18) 52 (24) 52 (24) HX-931U01500V HX-931U01500N HX-931U01500T HX-931U02000V HX-931U02000N HX-931U02000T HX-931U03000V HX-931U03000N HX-931U03000T HX-931U04000V HX-931U04000C HX-931U04000N HX-931U04000T HX-931U06000V HX-931U06000N HX-931U06000T HX-931U08000V HX-931U08000C HX-931U08000N HX-931U08000T F O R C E D - A I R H E A T E R S 1,500-4,000 Watts - - " 6,000-8,000 Watts - - Required wall depth opening 109 mm 4 5/16" - " 561 mm 22 1/16" Side view All models 109 mm 4 5/16" - - " " - - " " - - " " " " " " - " - " 65

68 F O R C E D - A I R H E A T E R S 938 Series Fan-Forced Toe-Space Heater Applications Checkout Counters Kitchens Reception Areas Ticket/Tollbooths Standard Construction Features Heating Elements Steel finned tubular elements provide durability. Outlet Grille Heavy 20-gauge steel grille has a polyester powder paint finish. Standard grille colors include black, white or almond. Built-in Controls Heater comes complete with a bi-metal automatic reset thermal cutout and warning light to indicate when the heater is running excessively hot. Factory Built-in Options Code T5 T6 Description Adjustable thermostat, single-pole Adjustable thermostat, double-pole The 938 Series heater is designed for installation in places where other heaters do not fit. These heaters can be installed into the toe space or kick space below a cabinet, in the soffit above a cabinet or into risers of a stairway. Multiple Wattage: Quick disconnect lead wires allow output conversion from 1,000 to 500 watts. Overtemperature Protection: Automatic reset thermal cutout is provided for primary overtemperature protection. More convenient than thermal fuses, which require field replacement when overtemperature conditions occur. Two-piece Construction: Unit is designed for easy installation. The fan, motor and controls are factory assembled into a sheet metal box with a removable front grille. Fan Motor Factory-lubricated fan motor operates at 44.5 dba with 80 CFM. Soffit Adapter Included with the heater. Installation Requirements Do not install heater on or above vinyl flooring. Rough In Dimensions All heaters: 20-1/2 wide x 3-27/32 high x 10-1/2 deep. Field-Installed Options (shipped loose for field installation into heater) Description Adjustable thermostat kit, single-pole Adjustable thermostat kit, double-pole 20-1/4" 4" MAX Floor 3 27/32" Wall Opening 20 1/2" 10 1/2" 3-11/16" 10-1/8" 21-3/4" 4" Heater Listing Watts 1000/ / /750 Volts /208 Total Amps (1) 8.8/ / /4.1 CFM Approximate Air Temperature Rise F ( C) 20 (11) 20/15 (11/8) 40/30 (22/17) Weight lb (kg) 13 (6) 13 (6) 13 (6) HX-938U01000B HX-938U01000V 66 (1) Total Amps = Heating element amps and motor amps. Add W to end of catalog number for white finish, A for almond, or BK for black. Special or custom colors - See inside back cover for color codes to be added to end of catalog number.

69 Applications Entryways Open Stairwells Small Rooms Under Large Window Areas 939 Series Fan-Forced Floor Heater The 939 Series floor heater is compact to fit into tight spaces. It is designed to mount between the floor joists. Unique Design: The heater features a separate housing and core assembly. The core assembly is completely prewired with leads and an electrical connection plug, which can be removed for service and cleaning without disturbing the housing or field wiring. Safety Screen: A protective screen prevents foreign objects from falling onto the heating elements or interfering with the fan. F O R C E D - A I R H E A T E R S Standard Construction Features Heating Elements Steel finned tubular elements provide durability. Housing Heavy welded 20-gauge steel housing. Outlet Grille The 14-gauge steel grille has a polyester powder paint finish. Standard grille colors include bronze, white or almond. Built-in Controls Manual reset thermal cutout prevents overheating. Fan Motor Quiet, factory-lubricated fan motor operates at 39.5 dba with 80 CFM. Installation Requirements Floor heaters should be installed a minimum of six inches from adjacent walls. Rough In Dimensions All heaters: 14-3/8 wide x 7-7/16 high x 8 deep. Heater Listing Watts Volts Total Amps (1) CFM Approximate Air Temperature Rise F ( C) Weight lb (kg) (1) Total Amps = Heating element amps and motor amps. Add W to end of catalog number for white finish, A for almond, or BZ for bronze. Special or custom colors - See inside back cover for color codes to be added to end of catalog number (11) 16 (7.3) HX-939U00500B (22) 16 (7.3) HX-939U01000B (33) 16 (7.3) HX-939U01500B 100/ / / /30 (22/17) 16 (7.3) HX-939U01000V 1500/ / / /45 (33/25) 16 (7.3) HX-939U01500V Remote Room Thermostat See page 99 8" 14-1/4" 7-1/4" 67

70 COMPARISON CHART Baseboard and Convector Heaters 907 B A S E B O A R D C O N V E C T O R A N D D R A F T B A R R I E R H E A T E R S Features Typical Applications Wattage Range Watt Density W/ft (W/m) Voltages Element Type Standard Construction Finish Sloped-Top Version Bottom Air Inlet Option Pedestal Kit Option Front Warm Air Outlet Option Custom Colors Agency Approvals Baseboard 903 Series Retail stores, Small offices Architectural Sill-Height Convector 904/906 Series Commercial buildings, Public buildings Industrial Sill-Height Convector 905/907 Series Industrial buildings, Institutions Architectural Convector 908/909 Series Banks, Offices Classrooms, Conference rooms Architectural Cabinet Convector 911/912 Series Mini Draft Barrier 914 Series High Watt Density Draft Barrier 916 Series Classrooms, Entryways, Entryways, Hallways, Schools Conference Hallways, rooms, Hallways Shoppingcenters 300 to 2, to 2, to 2, to 4,000 1,000 to 6, to 1, to 4, (900) 200 (650) (1 Ph) Stainless steel with aluminum fins 22-gauge steel body and front panel Polyester powder paint 275 (900) 200 (650) 150 (490) 100 (330) (1 Ph) Stainless steel with aluminum fins 18-gauge steel cabinetry with 14-gauge aluminumfront cover Polyester powder paint 275 (900) 200 (650) 150 (490) 100 (330) (1 Ph) Stainless steel with aluminum fins 18-gauge steel cabinetry with 16-gauge steel front cover Polyester powder paint 500 (1640) 375 (1250) (1 Ph) Stainless steel with aluminum fins 20-gauge steel cabinetry, 16-gauge steel front cover and extruded aluminumgrille Polyester powder paint 1,000 (3,280) 750 (2,450) 500 (1,640) (1 Ph) (3 Ph) Stainless steel with aluminum fins 20-gauge steel cabinetry with 16-gauge steel front cover Polyester powder paint 175 (574) 150 (490) (1 Ph) Stainless steel with aluminum fins 18-gauge steel cabinetry with 14-gauge aluminumfront and top covers Polyester powder paint 500 (1,640) 355 (1,165) 250 (820) 175 (575) (1 Ph) Stainless steel with aluminum fins 18-gauge steel cabinetry with 14-gauge aluminumfront and top covers Polyester powder paint No 904 Series 905 Series 908 Series 911 Series No No No Yes Yes No No Standard Standard No Yes Yes Yes Yes Yes Yes No No No Yes (909 Series only) Yes (912 Series Only) Yes Yes Yes Yes Yes Yes Yes CSA US CSA US CSA US CSA US CSA US CSA US CSA US No 914 No

71 Applications Offices Retail Stores Restrooms Restaurants 903 Series Baseboard Heater The 903 Series baseboard heater is more compact than any other heater on the market, yet it provides a high level of performance and strength. The unit s trim design enhances its appearance and rounded corners eliminate the sharp edges found on square heaters. Easy to Install: Heaters may be mounted flush on any floor surface. Two rows of oblong mounting holes with center mark for ease of installation. No disassembly installation with single-screw built-in rear entry wire holder. Electric Receptacles: Units can be furnished with built-on 120 and 240-volt receptacles to provide access for other electrical appliances. Control Options: Heaters can be controlled by a building management system with the addition of a low voltage relay. Adding a proportional control device provides precise temperature control and increased energy savings. B A S E B O A R D H E A T E R S Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Robust 22-gauge steel body with 20-gauge front panel and welded junction box, with 4H pencil hardness epoxy/polyester powder paint finish in white or almond. Built-in Controls Linear limit, automatic reset thermal cutout. 69

72 903 Series Baseboard Heater B A S E B O A R D H E A T E R S Factory Built-in Options Code D3 M1 R1 R2 R7 T1 T2 T5 T6 62 mm 2-7/16" Description Disconnect Switch, 277V, Double-pole, 20 Amp High Altitude Automatic Cutout 24V Relay, Single-pole, 240V, 22 Amp; 277V, 19 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp Triac Proportional Relay, 277V Max, 2500 W Max Tamperproof Thermostat, Single-pole, 277V, 25 Amp Tamperproof Thermostat, Double-pole, 277V, 25 Amp with off position Adjustable Thermostat, Single-pole, 277V, 25 Amp Adjustable Thermostat, Double-pole, 277V, 25 Amp with off position 64.5 mm 2-9/16" KOE 22M KOE 7/8" 148 mm 5-13/16" Field-Installed Options (shipped loose for field installation into heater) Description Baseboard Section 6 in. (152 mm) - 240V Splitter Box to permanently connect an air conditioner (20A switch, double-pole, double-throw) Baseboard Section 6 (152mm) - 240V Splitter Box toward a surface mount, 6-20R Receptacle, 20A switch, double-pole, double throw Baseboard Section 6 (152mm) - Surface mounted duplex 5-15R receptable, 120V, 15A Baseboard Section 6 (152mm) - Surface mounted duplex 6-20R receptable, 240V Baseboard Section 6 (152mm) - for the installation of a 24V relay (relay not included) Electronic Relay Kit, single-pole, coil 24V, with transformer, 15A 277 max Electronic Relay Kit, single-pole, coil 24V, without transformer, 15A 277 max Relay Kit 24V with transformer, 120V, 25 Amp (2-wire only) Relay Kit 24V with Transformer, 208V, 22 Amp Relay Kit 24V with Transformer, 240V, 22 Amp Relay Kit 24V with Transformer, 277V, 19 Amp Relay Kit 24V without Transformer, 120V - 240V, 22 Amp, 277V, 19 Amps Thermostat Kit, Adjustable, Double-pole, 277V, 25 Amp with off position Thermostat Kit, Adjustable, Single-pole, 277V, 25 Amp Thermostat Kit, Tamperproof, Double-pole, 277V, 25 Amp with off position 34 mm 1-3/8" Side View 75 mm 2-15/16" Thermostat Kit, Tamperproof, Single-pole, 277V, Amp Touch Up Brush Paint (1/2 oz) Touch Up Spray Paint (6 oz) Universal Corners (inside and outside) Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. 70

73 903 Series Baseboard Heater Heater Listing How to order: Heater Code with color code + Options (example HX-903U00750BW-T1) Standard Watt Density Models 275 W/ft. (900 W/m) Length In. (mm) Watts 120V (1 Ph) Amps Heater Code 208V Amps (1 Ph) 277V (1 Ph) Amps Watts at 240/208V Dual Voltage Heater Code 240/208V Amps (1 Ph) (577) 300 HX-903U00300B 2.5 HX-903U00300C /225 HX-903U00300V 1.3/ (702) 500 HX-903U00500B 4.2 HX-903U00500C 2.4 HX-903U00500N /375 HX-903U00500V 2.1/ (956) 750 HX-903U00750B 6.3 HX-903U00750C 3.6 HX-903U00750N /563 HX-903U00750V 3.1/ (1217) 1000 HX-903U01000B 8.3 HX-903U01000C 4.8 HX-903U01000N /750 HX-903U01000V 4.2/ (1524) 1250 HX-903U01250B 10.4 HX-903U01250C 6.0 HX-903U01250N /938 HX-903U01250V 5.2/ (1829) 1500 HX-903U01500B 12.5 HX-903U01500C 7.2 HX-903U01500N /1125 HX-903U01500V 6.3/ (1916) 1750 HX-903U01750C 8.4 HX-903U01750N /1313 HX-903U01750V 7.3/ (2439) 2000 HX-903U02000C 9.6 HX-903U02000N /1500 HX-903U02000V 8.3/ (2364) *2250 HX-903U02250C 10.8 HX-903U02250N 8.1 *2250/1688 HX-903U02250V 9.4/ (2596) *2500 HX-903U02500C 12.0 HX-903U02500N 9.0 *2500/1875 HX-903U02500V 10.4/9.0 Other single-phase voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to the catalog number where is indicated. (*) These items must be ordered in pairs to reduce shipping damage. Weight Lbs (kg) 4.5 (2.0) 5.5 (2.5) 7.3 (3.3) 9.0 (4.0) 10.5 (4.8) 12.0 (5.5) 13.5 (6.2) 15.0 (6.8) 16.5 (7.5) 18.0 (8.2) B A S E B O A R D H E A T E R S 16.8 mm 11/16" KOE 22mm KOE 7/8" 89.5 mm 3-1/2" Bottom View 89.5 mm 3-1/2" 72.8 mm 2-7/8" KOE 6.2 mm KOE 1/4" 89.5 mm 3-1/2" 24.1 mm 1" 75 mm 2-15/16" 89.5 mm 3-1/2" KOE 22mm KOE 7/8" 25.4 mm 1" 25.1 mm 1" 71

74 C O N V E C T O R S 904/906 Series Architectural Sill-Height Convector Architectural Sloped Top Sill-Height Convector 906 Applications Air, Rail or Bus Terminals Auditoriums Corridors Entryways Foyers Hallways Lobbies Offices 904 The 904/906 Series architectural sill-height convector (also known as draft barriers) are designed to fit under large windows to prevent cold down drafts. These heaters can provide total or supplemental heating for a variety of applications. Installation Options: Units may be mounted to the wall flush on the floor or on pedestals. Custom lengths, blank sections and inside or outside corners are available for wall-to-wall installations. Units can be ordered with smooth painted finish when the back of the heater is visible. Added Safety: The sloped-top of the 904 Series prevents objects from being set on top of the heater, which can restrict airflow and cause overheating. Choice of Colors: Heaters can be matched to any décor. White or almond is standard and a wide range of optional colors and custom finishes including anodized aluminum are available. Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 18-gauge steel with a 14-gauge aluminum front cover. The unit has a polyester powder paint finish in white or almond. End caps are provided on all units. Inlet/Outlet Grilles The fresh air inlet grille is located on the front of the unit. The outlet grille has openings less than 0.25 inches to discourage tampering with the heating element (pencil-proof). Built-in Controls Linear limit, automatic reset thermal cutout. Electrical Connection Each baseboard heater has a junction box located on both ends and a built-in full length wireway. Installation Requirements Field or factory-installed low voltage relay and thermostat kits fit into the righthand junction box only. 72

75 Factory Built-in Options Code A D3 L M1 R1 R2 R6 R7 S T1 T2 T5 T6 Bottom Air Inlet Description Disconnect Switch, 277V, Double-pole, 20 Amp Custom Length High Altitude Automatic Cutout 24V Relay, Single-pole, 240V, 22 Amp; 277V, 19 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay, 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 25 Amp; 277V, 10 Amp Tamperproof Thermostat, Double-pole, 240V, 25 Amp; 277V, 10 Amp Adjustable Thermostat, Single-pole, 240V, 25 Amp; 277V, 10 Amp Adjustable Thermostat, Double-pole, 240V, 25 Amp; 277V, 10 Amp Remote Room Thermostat See page /906 Series Architectural Sill-Height Convector Architectural Sloped Top Sill-Height Convector Field-Installed Options (shipped loose for field installation into heater) Description (1) Inside Corner (1) Outside Corner Round Pedestal Kit, 3-5, Qty= Square Pedestal Kit, 2, Qty= (1) Splice Plate 2 Long (1) Contour Splice Plate for Code A (Bottom Air Inlet) and/or Heater with Pedestals V Relay Kit, 240V, 22 Amp; 277V, 25 Amp V Relay Kit with Transformer, 120V, 22 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V, 19 Amp 906B-XXX(1) Blank Section (specify length in inches-xxx) (1) Change 906 prefix to 904 for sloped top. Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. C O N V E C T O R S 2-1/2" 4" K.O. 1/4" 6-1/8" 1-3/8" 3-7/8" 15/16" 1-7/8" 2-3/8" 1-1/8" Rear View Side View K.O. 7/8" 1-1/8" 7/8" 906 Series 2-3/8" Bottom View 2-1/2" 4" 7-1/2" 1-3/8" K.O. 1/4" 3-7/8" 1-7/8" 15/16" 2-3/8" 1-1/8" Rear View Side View K.O. 7/8" 1-1/8" 904 Series 7/8" 2-3/8" Bottom View 73

76 C O N V E C T O R S 904/906 Series Architectural Sill-Height Convector Architectural Sloped Top Sill-Height Convector HX-906U (Flat Top) HX-904U (Sloped Top) How to order: Model + Heater Code with color code + Options (example HX-906U01000BW-2632-T5) Density Heater Code Heater Code Weight Lbs (kg) Length Watts at Watts In. (mm) 120V 208V 277V W/Ft W/m Amps 240/208V 240/208V BCI BCSI Amps Amps Amps (1 Ph) (1 Ph) (1 Ph) (1 Ph) (Flat) (Sloped) B C / V / B C N / V / (738) B C N / V /1.4 (3.6) (4.1) B C N / V 2.1/ B C N / V / B C N / V / (992) B C N / V /2.2 (4.7) (5.4) B C N / V 3.1/ B C N / V / B C N / V / (1253) B C N / V /2.9 (5.8) (6.6) B C N / V 4.2/ B C N / V / B C N / V / (1494) B C N / V /3.6 (6.8) (7.9) B C N / V 5.2/ B C N / V / B C N / V / (1715) B C N / V /4.3 (7.8) (9.0) B C N / V 6.3/ B C N / V / B C N / V / (1952) B C N / V /5.0 (8.8) (10.1) C N / V 7.3/ B C N / V / B C N / V / (2175) C N / V /5.8 (9.7) (11.2) C N / V 8.3/ B C N / V / C N / V / (2400) C N / V /6.5 (10.7) (12.3) C N / V 9.4/ B C N / V / C N / V / C N / V / (2632) (11.7) (13.5) C N / V / C N / V 10.4/9.0 Other voltages available. Consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number. 74

77 905/907 Series Industrial Sill-Height Convector Industrial Sloped Top Sill-Height Convector 907 C O N V E C T O R S Applications Air, Rail or Bus Terminals Auditoriums Corridors Entryways Foyers 905 The 905/907 Series industrial sill-height convector (also known as draft barriers) are designed to fit under large windows to prevent cold down drafts. The heaters are ideal for heavy traffic areas with high heating requirements. Installation Options: Units may be mounted to the wall flush on the floor or on pedestals. Custom lengths and Hallways blank sections and inside or outside corners are available for wall-to-wall installations. Units can be ordered with Lobbies smooth painted finish when the back of the heater is visible. Offices Length Options: Heaters can be installed singularly in lengths from 20 inches to 103 inches or joined end to end for complete perimeter heating. Added Safety: The sloped-top cabinet on the 905 Series prevents objects from being set on top of the heater, which can restrict airflow and cause overheating. Choice of Colors: Heaters can be matched to any décor. White or almond is standard and a wide range of optional colors and custom finishes are also available. Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 18-gauge steel with a 16-gauge steel front cover. The unit has a polyester powder paint finish in white or almond. End caps are provided on all units. Inlet/Outlet Grilles The fresh air inlet grille is located on the front of the unit. The outlet grille has openings less than 0.25 inches to discourage tampering with the heating element (pencil-proof). Built-in Controls Linear limit, automatic reset thermal cutout. Electrical Connection Each baseboard heater has a junction box located on both ends and a built-in full length wireway. Installation Requirements Field or factory-installed low voltage relay and thermostat kits fit into the righthand junction box only. 75

78 C O N V E C T O R S 905/907 Series Industrial Sill-Height Convector Industrial Sloped Top Sill-Height Convector Factory Built-in Options Code A D3 L M1 R1 R2 R6 R7 S T1 T2 T5 T6 Description Bottom Air Inlet Disconnect Switch, 277V, Double-pole, 20 Amp Custom Length High Altitude Automatic Cutout 24V Relay, Single-pole, 240V, 22 Amp; 277V, 19 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay, 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 25 Amp; 277V, 10 Amp Tamperproof Thermostat, Double-pole, 240V, 25 Amp; 277V, 10 Amp Adjustable Thermostat, Single-pole, 240V, 25 Amp; 277V, 10 Amp Adjustable Thermostat, Double-pole, 240V, 25 Amp; 277V, 10 Amp Remote Room Thermostat See page 99 Field-Installed Options (shipped loose for field installation into heater) Description (1) Inside Corner (1) Outside Corner Round Pedestal Kit, 3-5, Qty= Square Pedestal Kit, 2, Qty= (1) Splice Plate 2 Long (1) Contour Splice Plate for Code A (Bottom Air Inlet) and/or Heater with Pedestals V Relay Kit, 240V, 22 Amp; 277V, 25 Amp V Relay Kit with Transformer, 120V, 22 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V, 19 Amp 907B-XXX(1) Blank Section (specify length in inches-xxx) (1) Change 907 prefix to 905 for sloped top. Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. 2-1/2" 4" K.O. 1/4" 6-1/8" 1-3/8" 3-7/8" 15/16" 1-7/8" 2-3/8" 1-1/8" Rear View Side View K.O. 7/8" 1-1/8" 7/8" 907 Series 2-3/8" Bottom View 2-1/2" 4" 7-1/2" 1-3/8" K.O. 1/4" 3-7/8" 1-7/8" 15/16" 2-1/2" 1-1/8" Rear View Side View K.O. 7/8" 1-1/8" Series 7/8" 2-3/8" Bottom View

79 HX-907U (Flat Top) HX-905U (Sloped Top) How to order: Model + Heater Code with color code + Options (example HX-905U01200NW-1708-T5) Density Length Watts In. (mm) W/Ft W/m 28.8 (731) 38.8 (986) 49 (1246) 58.6 (1486) 67.3 (1708) 76.6 (1945) 85.4 (2168) 94.2 (2393) (2625) 120V (1 Ph) Amps 905/907 Series Industrial Sill-Height Convector Industrial Sloped Top Sill-Height Convector Heater Code 208V (1 Ph) Amps 277V (1 Ph) Amps Watts at 240/208V Heater Code 240/208V (1 Ph) B C / V / B C N / V / B C N / V / B C N / V 2.1/ B C N / V / B C N / V / B C N / V / B C N / V 3.1/ B C N / V / B C N / V / B C N / V / B C N / V 4.2/ B C N / V / B C N / V / B C N / V / B C N / V 5.2/ B C N / V / B C N / V / B C N / V / B C N / V 6.3/ B C N / V / B C N / V / B C N / V / C N / V 7.3/ B C N / V / B C N / V / C N / V / C N / V 8.3/ B C N / V / C N / V / C N / V / C N / V 9.4/ B C N / V / C N / V / C N / V / C N / V / C N / V 10.4/9.0 Amps Weight Lbs (kg) BII (Flat) 10.4 (4.8) 12.7 (5.8) 14.9 (6.8) 17.0 (7.7) 18.8 (8.5) 20.8 (9.4) 22.7 (10.3) 24.6 (11.2) 26.6 (12.1) BISI (Sloped) 11.6 (5.3) 15.1 (6.9) 18.7 (8.5) 22.0 (10.0) 25.0 (11.4) 28.3 (12.8) 31.3 (14.2) 34.4 (15.6) 37.6 (17.1) C O N V E C T O R S Other single-phase voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number where is indicated. 77

80 C O N V E C T O R S 908/909 Series Architectural Convector Architectural Sloped Top Convector Applications Banks Classrooms Conference Rooms Halls Offices The 908/909 Series architectural convectors are designed to heat large commercial spaces without the fan noise associated with unit heaters. Installation Options: Units may be mounted to the wall, flush on the floor or on pedestals. Custom lengths, blank sections, sub-bases and inside or outside corners are available for wall-to-wall installations. Units and accessories can be ordered with smooth painted finish when the back of the heater is visible. Added Safety: The sloped-top cabinet on the 908 Series prevents objects from being set on top of the heater, which can restrict airflow and cause overheating. Recessed Mounting: The 909 Series heater can be fully recessed when the front warm air outlet option is used. Choice of Colors: Heaters can be matched to any décor. White or almond is standard and a wide range of optional colors and custom finishes are also available. Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 20-gauge steel with a 16-gauge steel front cover. The unit has a polyester powder paint finish in white or almond. Inlet/Outlet Grilles The fresh air inlet grille is located on the front of the unit. An extruded aluminum outlet grille discourages tampering with the heating element. Built-in Controls Linear limit, automatic reset thermal cutout. Installation Requirements Field or factory-installed low voltage relay and thermostat kits. Rough In Dimensions 909 only: Heater Length + 1 wide x 15 high x 6 deep. 78

81 Factory Built-in Options Code D1 F R1 R2 R3 R4 R5 R6 R7 S T1 T2 X1 X2 Description Disconnect Switch, Three-pole, 600V, 40 Amp Front Air outlet (Flat Top Only) 24V Relay, Single-pole, 240V, 22 Amp; 277V, 19 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp 24V Double-pole Relay, 240V, 25 Amp; 277V, 19 Amp 240V Relay, Single-pole, 240V, 25 Amp 240V Relay, Double-pole, 240V, 25 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay, 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 30 Amp; 480V, 15 Amp Tamperproof Thermostat, Double-pole, 480V, 15 Amp 240V Transformer - 50 VA 24V Transformer - 50 VA Remote Room Thermostat See page 99 (1) Change 909 prefix to 908 for sloped top. Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. Filler sections can be cut to length in the field. 908/909 Series Architectural Convector Architectural Sloped Top Convector Field-Installed Options (shipped loose for field installation into heater) Description Flat Top Corner (interior and exterior) Sloped Top inside corner Sloped Top outside corner Square Pedestal Kit 3-4 High (690) (944) Sub Base 47.2 (1198) Heater Length 57.2 (1452) In. (mm) 65.2 (1655) (1909) (2112) (1) 27.2 (690) (1) 37.2 (944) (1) Empty Cabinet 47.2 (1198) (1) Length 57.2 (1452) (1) In. (mm) 65.2 (1655) (1) 75.2 (1909) (1) 83.2 (2112) (690) (944) Recessed Trim Kit 47.2 (1198) Heater Length 57.2 (1452) In. (mm) 65.2 (1655) (1909) (2112) (1) Filler Section 12 (305) (1) Length 24 (610) (1) In. (mm) 36 (914) (1) Control Box (306) V Relay Kit, Single-pole, 240V, 22 Amp; 277V, 19 Amp V Relay Kit, Double-pole, 240V, 25 Amp V Relay Kit, Single-pole, 240V, 22 Amp V Relay Kit, Double-pole, 240V, 25 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V, 19 Amp Transformer Kit-208/24V - 50 VA Transformer Kit-240/24V - 50 VA Transformer Kit-277/24V - 50 VA 79 C O N V E C T O R S

82 C O N V E C T O R S 908/909 Series Architectural Convector Architectural Sloped Top Convector Unit With Grille On Top Not recessed Front View 8-1/2" Unit With Grille On Front (Option F) 2" 7-1/2" 14" K.O. Ø1/4" 4-1/2" K.O. Ø1-1/8 - Ø7/8" 3" K.O. Ø7/8" K.O. Ø1/4" 2-1/4" 5-3/1 Right Side View 8-1/32" 4" 2" K.O. Ø1-1/8"- Ø7/8" 2" 909 Series Bottom View 2-1/32" 2-1/32" K.O. 7/8" K.O. 1-1/8" K.O. 1/4" 2" 4" 4-1/32" 4" 7-17/32" 14-1/16" 4-15/32" 2" 2-31/32" 4-15/32" 2" 2-27/32" L Front View 2-21/32" Rear View K.O. 1/4" 2-9/32" 2-21/32" Left Side View 5-3/16" 908 Series 2-1/32" K.O. 1-1/8" Bottom View 2-1/32" 80

83 HX-909U (Flat Top) HX-908U (Sloped Top) How to order: Model + Heater Code with color code + Options (example HX-909U02000NW-1655-T1) Length In. (mm) Density W/Ft W/m Watts 208V (1 Ph) Heater Code Amps 277V (1 Ph) 908/909 Series Architectural Convector Architectural Sloped Top Covector Amps Watts at 240/208V Heater Code 240/208V (1 Ph) Amps Weight Lbs (kg) BAI (Flat) BASI (Sloped) C O N V E C T O R S 27.2 (690) 37.2 (944) 47.2 (1198) 57.2 (1452) 65.2 (1655) 75.2 (1909) 83.2 (2112) C C N N / / V V 3.3/ / (13.6) C N / V / C N / V 6.3/5.4 (20.9) C N / V / C N / V 8.3/7.2 (25.9) C N / V / C N / V 10.4/9.0 (29.9) C C N N / / V V 8.3/ / (34.0) C N / V / C (1) N / V 14.6/12.6 (36.3) C N / V / C (1) N / V 16.7/14.4 (40.4) 32.0 (14.5) 46 (20.9) 57 (25.9) 66 (30) 75 (34.1) 80 (36.3) 89 (40.5) Other single-phase voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number where is indicated. (1) If control option R7 is required for these heaters, (Qty 2) R7 Triac proportional relays are required. 81

84 914 Series Mini Draft Barrier Heater D R A F T B A R R I E R S Applications Commercial Buildings Entryways Hallways Schools The 914 Series mini draft barrier heaters are designed to fit under large windows to prevent cold down drafts. The heater provides total or supplemental heating for a variety of applications. Installation Options: Units may be wall mounted or installed on the floor using pedestal kits. Custom lengths, blank sections, and inside or outside corners are available for wall-to-wall installations. Units can be ordered with smooth painted finish mounting plates when the back of the heater is visible. Choice of Colors: Heaters can be matched to any décor. White or almond is standard and a wide range of optional colors and custom finishes including anodized aluminum are available. Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 18-gauge steel with a 14-gauge aluminum front and top covers. The unit has a polyester powder paint finish in white or almond. End caps are provided on all units. Inlet/Outlet Grilles The fresh air inlet is located on the bottom of the unit. The top outlet grille has openings less than 0.25 inches to discourage tampering with the heating element (pencil-proof). Built-in Controls Linear limit, automatic reset thermal cutout. Electrical Connection Each heater has a junction box located at the right end and a built-in full length wireway. Separate low voltage wireway is available. Mounting Requirements Minimum installation height above the floor is two inches. Field or factory-installed low voltage relay and thermostat kits fit into the righthand junction box only. 82

85 Factory Built-in Options Code D3 F1 L M1 R1 R2 R6 R7 S T1 T2 T5 T6 Description Disconnect Switch, Double-pole, 277V, 20 Amp 24V Wireway Custom Length High Altitude Automatic Cutout 24V Relay, 240V, 22 Amp; 277V, 19 Amp; 600V, 10 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 25 Amp; 600V, 10 Amp Tamperproof Thermostat, Double-pole, 240V, 25 Amp; 600V, 10 Amp Adjustable Thermostat, Single-pole, 240V, 25 Amp; 600V, 10 Amp Adjustable Thermostat, Double-pole, 240V, 25Amp; 600V, 10 Amp 914 Series Mini Draft Barrier Heater Field-Installed Options (shipped loose for field installation into heater) Description Inside Corner Outside Corner Round Pedestal Kit, 3-5, Qty Square Pedestal Kit, 2, Qty Splice Plate 2 Long Contoured Splice Plate for Code S (smooth painted finish on heater back) and/or Heater with Pededstals V Relay Kit, 240V, 22 Amp; 277V, 19 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V 19 Amp 914B-XXX Blank Section (specify length in inches-xxx) Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. D R A F T B A R R I E R S Remote Room Thermostat See page /2" 2-1/2" Top View Top View Top View 4-1/2" 2" K.O. O7/8" 1" Rear View Rear View 4-1/2" 1-5/8" 3-3/16" 3-3/4" 2" K.O. O7/8" Smooth Finish on terback hea - (S) Standard inish F on er heat back 1" Rear View Side 1-5/8" View 3-3/16" 3-3/4" Smooth Finish on terback hea - (S) Standard inish F on er heat back Side View Front View Front View Front View Sufficie nt Height 2" rom f Floor Sufficie nt Height 2" rom f Floor Shown with optional square pedestal. 83

86 914 Series Mini Draft Barrier Heater D R A F T B A R R I E R S HX-914U How to order: Model + Heater Code with color code + Options (example HX-914U00400NW-1200-T5) Length In. (mm) 27.6 (700) 35.4 (900) Density Watts W/Ft W/m 208V (1 Ph) Amps Heater Code 277V (1 Ph) Amps 480V (1 Ph) Amps Watts 240/208V Heater Code 240/208V (1 Ph) Amps Weight Lbs (kg) C N / V / C N / V 1.5/1.3 (3.2) C N T / V / C N T / V / C N T / V 2.2/ (3.8) 47.3 (1200) 59.1 (1500) 70.9 (1800) 82.7 (2100) C N T / V / C N T / V / C N T / V 2.9/ C N T / V / C N T / V / C N T / V 3.6/ C N T / V / C N T / V / C N T / V 4.4/ C N T / V / C N T / V / C N T / V 5.1/ (4.6) 12 (5.5) 13.9 (6.3) 15.8 (7.2) 94.5 (2400) C N T / V / C N T / V / C N T / V 5.8/5.1 Other voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number where is indicated 17.6 (8) 84

87 916 Series High Watt Density Draft Barrier D R A F T B A R R I E R S Applications Commercial Buildings Entryways Hallways Hospitals Shopping Centers The 916 Series high watt density draft barrier heaters are designed to fit under large windows to prevent cold down drafts. The heater provides total or supplemental heating for a variety of applications. Installation Options: Units may be wall mounted or installed on the floor using pedestal kits. Custom lengths, blank sections and inside or outside corners are available for wall-to-wall installations. Units can be ordered with smooth painted finish when the back of the heater is visible. Choice of Colors: Heaters can be matched to any décor. White or almond is standard and a wide range of optional colors and custom finishes, including anodized aluminum, are also available. Standard Construction Features Heating Elements Two stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 18-gauge steel with a 14-gauge aluminum front and top covers. The unit has a polyester powder paint finish in white or almond. End caps are provided on all units. Inlet/Outlet Grilles The fresh air inlet is located on the bottom of the unit. The top outlet grille has openings less than 0.25 inches to discourage tampering with the heating element (pencil-proof). Built-in Controls Linear limit, automatic reset thermal cutout. Electrical Connection Each heater has a junction box located at the right end and a built-in full length wireway. Seprate low voltage wireway is available. Installation Requirements Minimum installation height above the floor is three inches. Field or factory-installed low voltage relay and thermostat kits fit into the right-hand junction box only. 85

88 D R A F T B A R R I E R S 916 Series High Watt Density Draft Barrier Heater Factory Built-in Options Code D1 D3 F1 L M1 R1 R2 R6 R7 S T1 T2 Description Disconnect Switch, Three-pole, 600V, 40 Amp Disconnect Switch, Double-pole, 277V, 20 Amp 24V Wireway Custom Length High Altitude Automatic Cutout 24V Relay, 240V, 22 Amp; 277V, 19 Amp; 600V, 10 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 25 Amp; 600V, 10 Amp Tamperproof Thermostat, Double-pole, 240V, 25 Amp; 600V, 10 Amp Field-Installed Options (shipped loose for field installation into heater) Description Inside Corner Outside Corner Square Pedestal Kit, 3, Qty Splice Plate 2 Long Contoured Splice Plate for Code S (smooth painted finish on heater back) and/or Heater with Pededstals V Relay Kit, 240V, 22 Amp; 277V, 19 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V 19 Amp 916B-XXX Blank Section (specify length in inches-xxx) Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. Remote Room Thermostat See page /4" Top Top View View O1/4" 6" 3" Rear View K.O. O7/8" 1-7/8" Front View 3-3/16" 2-1/4" 3-3/16" Smooth Finish on heater back - (S) Standard Finish on heater back Side View Shown with optional square pedestals. Front View Sufficient Height 3 from Floor 86

89 HZ-916U How to Order: Model + Heater Code with color code + Options (example HX-916U00875CW-1500-T1) Length In. (mm) 23.6 (600) 35.4 (900) 47.3 (1200) 59.1 (1500) 70.9 (1800) 82.7 (2100) 94.5 (2400) W/Ft Density W/m Watts 208V (1 Ph) Amps Heater Code 277V (1 Ph) Amps Other voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number where is indicated. 916 Series High Watt Density Draft Barrier 480V (1 Ph) Amps Watts at 240/208V Heater Code 240/208V (1 Ph) C N / V / C N / V / C N / V 3.1/ C N T / V / C N T / V / C N T / V / C N T / V 4.2/ C N T / V / C N T / V / C N T / V / C N T / V 5.8/ C N T / V / C N T / V / C N T / V / C N T / V 7.3/ C N T / V / C N T / V / C N T / V / C N T / V 8.8/ C N T / V / C N T / V / C N T / V / C N T / V 10.2/ C N T / V / C N T / V / C N T / V / C N T / V 11.7/ C N T / V /14.4 Amps Weight Lbs (kg) 10.7 (4.8) 14.1 (6.4) 17.6 (8.0) 21.1 (9.6) 24.6 (11.1) 28.0 (12.7) 31.5 (14.3) D R A F T B A R R I E R S 87

90 C O N V E C T O R S 911/912 Series Architectural Cabinet Convector Architectural Sloped Top Cabinet Convector 912 Applications Classrooms Conference Rooms Hallways Lobbies 911 The 911/912 convectors are designed to heat large commercial spaces. They provide large amounts of heat without the fan noise associated with unit heaters. Installation Options: Units may be mounted to the wall, flush on the floor or on pedestals. 912 Series units can be fully recessed when the front warm air outlet option is used. Added Safety: The sloped-top cabinet on the 911 Series prevents objects from being set on top of the heater, which can restrict airflow and cause overheating. Wall-to-Wall Installation: A finished back mounting plate is available so that the unit can be mounted against glass walls. Standard Construction Features Heating Elements Stainless steel elements with aluminum fins float on high temperature nylon bushings for quiet operation. Housing Cabinet is constructed of 20-gauge steel with a 16-gauge steel front cover. The unit has a polyester powder paint finish in white or almond. Mounting holes are provided along the back of the cabinet for wall installation. Inlet/Outlet Grilles The fresh air inlet grille is located on the front of the unit. An extruded aluminum outlet grille discourages tampering with the heating elements. Built-in Controls Linear limit, automatic reset thermal cutout. Rough In Dimensions 912 Series only: Heater Length + 1 wide x 21 high x 6 deep. 88

91 Factory Built-in Options Code D1 F R1 R2 R3 R4 R5 R6 R7 S T1 T2 X1 X2 Description Disconnect Switch, Three-pole, 600V, 40 Amp Front Air outlet (912 Series Only) 24V Relay, Single-pole, 240V, 22 Amp; 277V, 19 Amp 24V Relay with Transformer, 240V, 22 Amp; 277V, 19 Amp 24V Double-pole Relay, 240V, 25 Amp; 277V, 19 Amp 240V Relay, Single-pole, 240V, 25 Amp 240V Relay, Double-pole, 240V, 25 Amp Pneumatic Relay, 480V, 20 Amp Triac Proportional Relay, 277V Max., 2500W Max. Smooth painted finish on heater back Tamperproof Thermostat, Single-pole, 240V, 30 Amp; 480V, 15 Amp Tamperproof Thermostat, Double-pole, 480V, 15 Amp 240V Transformer - 50 VA 24V Transformer - 50 VA Remote Room Thermostat See page 99 (1) Change 912 prefix to 911 for sloped top. Standard colors - Add W for white finish or A for almond finish to the end of part number. Special or custom colors - See inside back cover for color codes to be added to end of part number. Filler sections can be cut to length in the field. 911/912 Series Architectural Cabinet Convector Architectural Sloped Top Cabinet Convector Field-Installed Options (shipped loose for field installation into heater) Description Flat Top Corner (interior and exterior) Sloped Top inside corner Sloped Top outside corner Universal Round Pedestal Kit 3-4 High (690) Sub Base 37.2 (944) Heater Length 47.2 (1198) In. (mm) 57.2 (1452) (1655) (1) 27.2 (690) (1) Empty Cabinet 37.2 (944) (1) Length 47.2 (1198) (1) In. (mm) 57.2 (1452) (1) 65.2 (1655) (690) Recessed Trim Kit 37.2 (944) Heater Length 47.2 (1198) In. (mm) 57.2 (1452) (1655) (1) Filler Section 12 (305) (1) Length 24 (610) (1) In. (mm) 36 (914) (1) Control Box (306) V Relay Kit, Single-pole, 240V, 22 Amp; 277V, 19 Amp V Relay Kit, Double-pole, 240V, 25 Amp; 277V, 19 Amp V Relay Kit, Double-pole, 240V, 25 Amp V Relay Kit, Single-pole, 240V, 22 Amp V Relay Kit with Transformer, 208V, 22 Amp V Relay Kit with Transformer, 240V, 22 Amp V Relay Kit with Transformer, 277V, 19 Amp Transformer Kit-208/24V - 50 VA Transformer Kit-240/24V - 50 VA Transformer Kit-277/24V - 50 VA C O N V E C T O R S 89

92 C O N V E C T O R S 911/912 Series Architectural Cabinet Convector Architectural Sloped Top Cabinet Convector Unit With Grille On Top 2-1/2" 7-1/4" K.O. 4" X 2" K.O. 1/4" K.O. 7/8" 8" K.O. 7/8" 8-1/2" 12-1/2" Unit With Grille On Front (Option F) 6" Rear View 5-3/16" 20-3/16" K.O. 7/8" Left Side View L 2" Bottom View 912 Series K.O. 7/8" K.O. 1/4" 2" 20-3/16" 8" 8-15/32" K.O. 2" 1-1/8" L Front View 6" K.O. 1/4" K.O. 1-1/8" Rear View 5-3/16" Left Side View 4-1/32" 911 Series 2" 2" Bottom View 90

93 HX-912U (Flat Top) HX-911U (Sloped Top) How to order: Model + Heater Code with color code + Options (example: HX-912U03000CW-1198-T1) Length In. (mm) W/Ft Density W/m Watts 208V (1 ph) Amps Heater Code 240V (1 ph) 911/912 Series Architectural Convector Architectural Sloped Top Convector Amps 277V (1 ph) Amps Watts at 240/208V Heater Code 240/208V (1 ph) Amps Weight Lbs (kg) 912 (Flat) 911 (Sloped) C O N V E C T O R S 27.2 (690) C J N / V / C J N / V / C J N / V 8.3/ (16.8) 37 (16.8) 37.2 (944) C J N / V / C J N / V / C J N / V 12.5/ (21.3) 47 (21.3) 47.2 (1198) C J N / V / C J N / V / C J N / V 16.7/ (25.9) 57 (25.9) 57.2 (1452) C J N / V / C J N / V / C J N / V 20.8/ (30.4) 67 (30.4) 65.2 (1655) C J N / V / C J N / V / C J N / V 25.0/ (35.8) 79 (35.8) Length In. (mm) W/Ft Density W/m Watts 208V (3 ph) Amps Heater Code 240V (3 ph) Amps 480V (3 ph) Amps Watts at 240/208V Heater Code 240/208V (3 ph) Amps Weight Lbs (kg) 912 (Flat) 911 (Sloped) D K U / P / (690) D K U / P / D K U / P 4.8/ (16.8) 37 (16.8) D K U / P / (944) D K U / P / D K U / P 7.2/ (21.3) 47 (21.3) D K U / P / (1198) D K U / P / D K U / P 9.6/ (25.9) 57 (25.9) D K U / P / (1452) D K U / P / D K U / P 12.0/ (30.4) 67 (30.4) D K U / P / (1655) D K U / P / D K U / P 14.4/12.5 Other voltages available, consult factory. Standard colors - Add W for white finish or A for almond finish to the end of catalog number when is indicated. Special or custom colors - See inside back cover for color codes to be added to end of catalog number where is indicated. For three-phase units a double pole relay or thermostat is required. 79 (35.8) 79 (35.8) 91

94 R A D I A N T H E A T E R S AS Radiant Ceiling Panels Applications Atriums Enclosed Walkways Entryways Hospitals Lobbies Offices Schools Warehouses AS Series radiant panels are ideal for offsetting heat loss through exterior glass on the perimeter of a building. They help to control the problem of condensation typically found with these large exterior glass walls. Radiant panels provide improved comfort by maintaining an even temperature from floor to ceiling. Radiant Heat: Radiant energy travels in straight lines and is absorbed by objects in the room, warming the space. Air quality is maintained because no forced air movement occurs with radiant heating. Maximize Work Area: Ceiling mounted panels permit full use of floor and wall space. Maintenance Free: Radiant panels have no moving parts, so they are maintenance free and can provide years of quiet, safe and clean operation. Standard Construction Features Heating Element High quality alloy resistance wire is electrically insulated with a UL Listed TEFZEL compound rated for 200 C (392 F). Heating wires are covered with high-efficiency reflective foil. Panel Design Panel is made of 22-gauge galvanized steel with a white baked-on powder paint finish. Panel is crimped, not riveted, for improved strength. Insulation Each panel contains two inches of high temperature/high density mineral wool insulation. Electrical A junction box is attached to each panel for field wiring and to connect panels to each other. Installation Requirements Heater can be installed in suspended T-bar ceiling systems or can be surface or recessed mounted using optional mounting frames. Heater comes equipped with four suspension clips. Connecting wire or chain is supplied by customer. Minimum recommended mounting height is eight feet from the floor. Rough In Dimensions Plaster Mounting Frames: PF-22: 24-1/8 x 24-1/8 PF-24 and SPF 24: 24-1/8 x 48-1/8 PF-1448: x 48-1/8 PF-1460: 14-1/8 x 60-1/8 92

95 Factory Built-in Options Code FCXX S TEG TEGF Finishes Code O PT S304 S316 SS Description Flexible electrical conduit. Specify length of conduit XX-inches. Silicone seams, provides protection in high moisture areas. Includes 36 of sealtite conduit. Tegular reveal edge detail for 15/16 grid. Fineline Tegular reveal edge for 9/16 grid. Description Specify custom color finish. Standard finish; textured white baked-on powder coating on front panel. 304 Stainless steel construction, includes 36 of sealtite conduit and silicone seal. 316 Stainless steel construction, includes 36 of sealtite conduit and silicone seal. Silk screen to match acoustical ceiling tiles (specify style). One time set-up fee if pattern is not in stock. AS Radiant Ceiling Panels Field-Installed Options (shipped loose for field installation into heater) Width In. (mm) Surface Mounting Frames SF (610) SF (610) SF (356) SF (356) Plaster Mounting Frames PF (610) PF (610) SPF-24(1) 24 (610) PF (356) PF (356) Filler Panel FP (1) Stainless steel frame, specify 304 or 316 type. Add finish code to end of catalog number. Length In. (mm) 24 (610) 48 (1219) 48 (1219) 60 (1524) 24 (610) 48 (1219) 48 (1219) 48 (1219) 60 (1524) Weight lb (kg) 4 (1.8) 9 (4.1) 8 (3.6) 10 (4.5) 2 (1.0) 4 (1.8) 4 (1.8) 5 (2.3) 6 (2.7) Sized and finished to match standard, custom color or silk screened panel. R A D I A N T H E A T E R S Control Options SR-LV PL-1 BX-1 Sensors SRDP-10/10 SRDP-10/20 SRDP-20/20 Description SmartRooms low voltage controller. Sensor(s) must be ordered at the same time. Requires connection to SmartRooms Communication Panel. Plaster ring for SR-LV Controller Box ring for SR-240/120 Controller Used with SR-240/120, 15 long Longer length add per foot SmartRooms Panel w/10comm. Ports and 10 ea. 20 amp relays SmartRooms Panel w/10comm. Ports and 20 ea. 20 amp relays SmartRooms Panel w/20comm. Ports and 20 ea. 20 amp relays Remote Room Thermostat See page 98 93

96 R A D I A N T H E A T E R S AS Radiant Ceiling Panels Flush Mount Frame in Drywall Ceiling Flush MountFram e in DrywallCeili ng Nail Ceiling Joist Each Kit Includes: Each Kit Includes: 22 - Side - Side Pieces ieces P 22 - End - End Pieces es Piec 44 - Corner - Brackets Ceiling Joist Joist Radiant Heater H Wire Suspended Flush Mounting Kit Junction Box Box 4 4" x 4 x x 4" 1-1/2 1-1/2" Nail 2 2" Flush Flush Mounting Mounting Frame ame Fr Factory Painted Gauge Gauge Extruded Aluminum Finished Ceiling Ceiling 2 2" 1-1/2 1-1/2" Plaster Frame rame F Flush Mount Mount Kit Kit Power Supply y Ceiling Ceiling Joist Each Kit Includes: 2 - Side Channels 2 - End Channels 4 - Corner Brackets with rews Sc with screws Each Kit Includes : 2 - Side hannels C 2 - End Channels 4 - CornerBrackets Toggle Bolt t Ceiling g 4" 2" 4 x 4 x 1-1/2 Junction Box 4" X 4" X 1-1/2" Junction oxb Radiant Heater Surface Mounting Surface Surface Mounting Frame Factory Painted 12 Factory Painted Galvanized 12 Gage Steel Galvanized Steel CornerMounting Mounting with rews Sc Bracket with Screws Support Clips lips C 2, 2", 4 Lb 4 Density Lb D High Temperature Mineral Mineral Wool l Insulation High Density Densit y Heating Panel Panel Reflective Reflectiv Foil e Foil Gauge Gauge Galvanized anized Steel Stel Front ont and an d Back Back of of Unit Unit 4 4" x 4 X x 1-1/2 4" X 1-1/2" Junction Box Box With with Cover ver Electric Electric Heating Hea Element ting Element - Alloy Wire, - lloy ATefzel ire, W TefzelInsulation Factory Factory Finished Finished with with a High a High Temp Temperature, erature, Textured Textured Powder owder P Paint Pain t Finish Finish Height B Width A 2 2" Cutaway Cutaway View of View AS Series of Heater AS Series eater H 94

97 AS - Radiant Ceiling Panels Listing Watts 24 x x x x Volts (1 Phase) Width In. (mm) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) 14 (356) Height In. (mm) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 24 (610) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 48 (1219) 60 (1524) 60 (1524) 60 (1524) 60 (1524) 60 (1524) 60 (1524) Amps AS Radiant Ceiling Panels Weight lb (kg) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 30 (13.6) 18 (8.2) 18 (8.2) 18 (8.2) 18 (8.2) 18 (8.2) 18 (8.2) 18 (8.2) 22 (10.0) 22 (10.0) 22 (10.0) 22 (10.0) 22 (10.0) 22 (10.0) HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS HX-AS R A D I A N T H E A T E R S Add finish code to end of catalog number. See page

98 R A D I A N T H E A T E R S Cove Cove Heater Applications Classrooms Garages Hospital Rooms Lobbies Offices Restrooms Cove heaters are designed to supply efficient radiant heat. They provide greater comfort at lower temperature settings and can be set up for individual or zone control to reduce energy costs. Radiant Heat: Radiant energy travels in a straight line from the heater to people and objects in the room, warming the space. Convection Flow: The design of the heater provides a convection flow from behind and over the top of the unit to circulate warm air into the room. Virtually Maintenance Free: No moving parts to replace or service. Exclusive Tilt and Lock Mounting System: Allows easy, one-person installation. Standard Construction Features Heating Element Commercial grade tubular heating element. Housing Heater has an 18-gauge G-90 galvanized steel frame. The continuous single-piece construction and solid metal end caps provide durability. Front Panel Heavy gauge aluminum front panel finished with an off-white high emissivity coating. Other standard finishes include walnut, sandalwood, light almond and pure white. Electrical Ventilated junction boxes at each end of the heater with one-half inch electrical knockouts. High temperature (125 C) 12-gauge cross link wiring is used through out the heater. Installation Requirements Minimum clearances: Six feet from the floor; 2-1/2 inches from plaster ceilings or 4-1/2 inches from false ceilings, vinyl ceilings and plaster moldings. Maintain one inch below heater and any fabric. Allow one-inch clearance between adjacent heaters. 96

99 Standard Finishes Finish Code Availability Off-White OW Standard Walnut WL Stock Sandalwood SW Stock Light Almond AL Stock Pure White PW Stock To Specify Finish: Choose code from above. Example: C-4524-OW = Off-White Unit Remote Room Thermostat See page 98 COVE Cove Heater R A D I A N T H E A T E R S Cove Heater Listing Watts Volts (1 Phase) Amps Length In. (mm) Weight lb (kg) (864) 34 (864) 34 (864) 34 (864) 47 (1194) 47 (1194) 47 (1194) 47 (1194) 59 (1499) 59 (1499) 59 (1499) 59 (1499) 71 (1803) 71 (1803) 71 (1803) 71 (1803) 83 (2108) 83 (2108) 83 (2108) 83 (2108) 94 (2388) 94 (2388) 94 (2388) 94 (2388) 106-1/4 (2699) 106-1/4 (2699) 106-1/4 (2699) 118-1/4 (3004) 118-1/4 (3004) 118-1/4 (3004) 132 (3353) 132 (3353) 132 (3353) 6 (2.7) 6 (2.7) 6 (2.7) 6 (2.7) 8 (3.6) 8 (3.6) 8 (3.6) 8 (3.6) 10 (4.5) 10 (4.5) 10 (4.5) 10 (4.5) 12 (5.4) 12 (5.4) 12 (5.4) 12 (5.4) 13 (5.9) 13 (5.9) 13 (5.9) 13 (5.9) 15 (6.8) 15 (6.8) 15 (6.8) 15 (6.8) 18 (8.2) 18 (8.2) 18 (8.2) 20 (9.1) 20 (9.1) 20 (9.1) 22 (10) 22 (10) 22 (10) HX-C-4512 HX-C-4508 HX-C-4524 HX-C-4527 HX-C-6012 HX-C-6008 HX-C-6024 HX-C-6027 HX-C-7512 HX-C-7508 HX-C-7524 HX-C-7527 HX-C-9012 HX-C-9008 HX-C-9024 HX-C-9027 HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C HX-C Add finish code to end of catalog number. 97

100 THERMOSTATS T H E R M O S T A T S OTH550BL 901-OTH OTH OTH RC RC840T RC840T OTH800D 901-OTH SR-240/120(4) RT RT850T-240 Line Voltage Thermostats for 240 Series Heaters (Pages 29-32) Switch Type Color Type Tamperproof Thermometer V 277V Pilot Duty Positive Off Temperature Range F Bimetal White SPDT No No Low Voltage Thermostats for Industrial Unit Heater 238 Series (Pages 26-28) Bimetal White SPDT No No stage Bimetal White 2 SPST Switches Thermostats for Cove Heaters (Pages 96-97) No Yes Thermostats for AS Series Radiant Ceiling Panels (Pages 92-95) 30VA at 30V max 30VA at 30V max R-101 SPST No No No Bimetal Beige R-102 DPST No No Yes Explosion-proof Heaters - Remote Wall Mounted Thermostat (Pages 8-21) Yes Yes SR-240/120(4) Electronic White DPDT No Digital &240V R-101 SPST No No No Bimetal Beige R-102 DPST No No Yes (4) A 3 inch deep double electrical box will be supplied for wall installation. Remote window sensor option is available, contact factory for pricing. Switch Type Ratings Type Tamperproof Thermometer V Pilot Duty Temperature Range F ( C) Bimetal Class I, Div 1 Group C&D, Class II, Div 1 Group E,F&G NEMA 7 SPDT No No (10-32) Washdown/Corrosion Resistant 234 Series Unit Heater - Remote Wall Mounted Thermostat (Pages 23-25) Switch Type Ratings Type Tamperproof Thermometer Amps Pilot Duty Temperature Range F ( C) Bulb NEMA 4X SPDT No No V 277V 125VA F (4-43)

101 Line Voltage Thermostats for 900 Series Heaters (Pages 39-91) Switch Type Color Type V (1) Do not use these thermostats with heaters that have inductive loads (heaters that have a motor or contactor). (2) Programmable electronic thermostat. Recommended for heaters with motor or contactor. (3) Add to catalog number W - white or A - almond color. THERMOSTATS 277V Pilot Duty Positive Off Thermometer Tamperproof Thermometer Temperature Range o F Bimetal Beige SPST No No No SPST No Bimetal White No No DPST Yes OTH800D (1) White DPST 208& OTH550 (1)(3) (3) 16 Electronic Pulse Yes Digital 901-OTH507 (1) White 16 No OTH660 (2)(3) (3) Pulse or OTH607 (2) White On-Off 16 T H E R M O S T A T S Low Voltage Thermostats for 900 Series Heaters (Pages 33-91) Switch Type Color Type Tamperproof Thermometer V 277V Pilot Duty Positive Off Temperature Range o F Bimetal White SPST No No Precision Snap Action (3) 2-stage Bimetal White SPST No No White 2 SPST Switches (3) 2-Stage room thermostat for use with 922 Series Cabinet Unit Heater. No Yes 30VA at 30V max 36VA at 30V max 30VA at 30V max Yes No Yes Low Voltage Electronic Thermostats for 900 Series Heaters (Pages 69-91) Switch Type Electronic Beige DC Pulse Color Type Tamperproof V 277V No No (1) Do not use these thermostats with heaters that have inductive loads (heaters that have a motor or contactor). Output Signal 20mA Max at 8 VDC Positive Off Temperature Range o F No OTH824 Electronic White Pulse Yes Digital 24VAC No Controllers and Accessories for 900 Series Heaters (Pages 33-91) 901-RT850 Description Triac Relay without transformer (pulsing) 120/208/240/277 V Amps@ V Amps@ 277V Input Signal 24VAC & 4-32 VDC 901-RT850T-240 Triac Relay with transformer 208/240 V VAC 901-RC840 On-Off Relay without transformer 120/208/240/277 V RC840T-240 On-Off Relay with transformer 208/240 V RC840T-277 On-Off Relay with transformer 277 V 18 Accessories for 900 Series Heaters (Pages 33-91) Description Universal Thermostat Guard. Protects both line and low voltage thermostats against vandalism, damage, and unauthorized adjustment of thermostat settings. 99

102 L I M I T E D W A R R A N T Y Limited Warranty HEATREX new products are warranted against defects in workmanship, material, design, labeling and packaging. No other warranty, expressed or implied, written or oral, applies. No person other than an officer or the general manager of HEATREX is authorized to give any other warranty or assume any liability. Warranty Period This warranty is effective for eighteen months from the date of shipment of the product from HEATREX s factory, or for twelve months from the date the product is first placed into service, whichever period lapses first. Conditions of Warranty HEATREX products must be installed, operated, and maintained in accordance with HEATREX s instructions. HEATREX is not liable for damage or unsatisfactory performance of the product resulting from accident, negligence, alteration, unauthorized repair, improper application or installation of the product, improper specifications, or corrosion. HEATREX IS NOT LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES. Claims against carriers for damage in transit must be filed by the purchaser with the carrier. Remedy Contact the HEATREX sales department in St. Louis at (314) , for a Return Material Authorization (RMA#). Return the part or product in question, freight prepaid, and marked with your company name and the RMA# to: HEATREX 425 Hanley Industrial Court St. Louis, MO Attn: Return Materials Manager If after receipt of the product and the claim, HEATREX finds to its reasonable satisfaction that the product is defective in workmanship, material, design, labeling or packaging, the product will be repaired or replaced, or the purchase price refunded at HEATREX s option. There will be no charge to the purchaser for parts or labor. Removal and reinstallation of the product, and shipment of the product to HEATREX for repair or inspection, shall be at the purchaser s risk and expense. THE REPAIR, REPLACEMENT, OR REFUND PROVIDED FOR IN THIS LIMITED WARRANTY IS THE EX- CLUSIVE REMEDY OF THE PURCHASER. THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE TERMS OF THIS LIMITED WARRANTY. 100

103 Color Selection Chart Standard Colors 900 Series Standard Color 240 Series White (W) Almond (A) Camel Special Colors 900 Series Optional Colors 240 Series Metallic Silver (AE) Beige-Grey (BG) Grey Yellow Metallic Charcoal (CM) Bronze (BZ) Red White Textured Black (NR) Aluminum (AL) Blue Textured Beige Refer to catalog listings for standard and special color availability. Use color codes in parentheses when specifying and ordering. Custom colors are also available on 900 Series. Special and Optional Colors subject to setup charges. Colors represented are approximate.

104 For Limited Warranty Information contact: HEATREX 425 HANLEY INDUSTRIAL COURT ST. LOUIS, MO M0610