Models 575B, 575C, 541A with 524A-H

Transcription

1 COMMERCIAL SPLIT SYSTEM HEAT PUMP Models 575B, 575C, 541A with 524A-H Sizes Nominal Cooling: 6 to 25 Tons Nominal Heating: 71,000 to 270,000 Btuh 541A B C090,120 Heat Pump Systems that Save Energy and Provide Outstanding Heating and Cooling All Year All-season comfort in any climate High energy savings capability Suitable for new construction or replacement FEATURES/BENEFITS System indoor and outdoor sections offer outstanding performance in either the Cooling or Heating mode. HEAT PUMP SYSTEM ENERGY SAVINGS OPPORTU- NITY Electrical energy consumption is always a prime concern when selecting an air-conditioning system for a commercial application. An easy, effective way to save energy is to install a heat pump. Should your building plans call for one, consider a matched Bryant 575B, 575C, 541A/524A-H heat pump system. These systems not only offer highly efficient cooling, they also provide a clean, safe, efficient source of heat. In fact, they are capable of delivering approximately 3 units of heat energy for each unit of electrical power consumed. HEAT PUMP UNIQUENESS The outstanding performance of these heat pump systems is due to the heat pump s ability to absorb and transfer heat from outdoors to indoors for heating, and from indoors to outdoors for cooling. System indoor and outdoor sections operate as evaporators or condensers, depending on whether heating or cooling is required. The heating cycle always starts with the outdoor coil absorbing heat from 524A-H the surrounding air (even outside air at extremely cold temperatures), and ends with the indoor coil releasing or rejecting heat to the air around it. 575B, 575C AND 541A APPLICATION VERSATILITY Whether for a new application or replacement, these Bryant split system heat pumps offer time-proven performance for year-round comfort in any climate. RUGGED LONG LIFE COMPRESSOR 575B and 575C Units The 575B and 575C outdoor units are equipped with a scroll compressor for superior efficiency and long life. A recycle delay device in the unit control box will disable the compressor if any operational or safety devices open and stop the compressor. The unit safety circuit may be reset manually at the thermostat. 541A Units The 541A180 outdoor unit is equipped with an 06D semi-hermetic compressor, which is famous throughout the industry for reliability. This compressor has a vane-type oil pump for positive oil pressure, an oil pressure regulating valve, a low oil pressure switch, Class F stator windings, capacity reduction, oil level sight glass and service valves. The 541A180 with cylinder unloading (one unloader is standard equipment) can reduce capacity during cooling operation to reduce energy usage and improve space temperature regulation. A Cycle-LOC device in the control box will disable the compressor if any operational or safety devices open and stop the compressor. The unit safety circuit may be reset manually at the thermostat. Form No. PDS 575B.72.4

2 CONTROLS FOR PERFORMANCE EFFICIENCY These units offer the building owner operating controls and components designed for performance dependability. The highly efficient scroll or semi-hermetic compressors are engineered for long life and durability. The compressor includes overload protection and compressor vibration isolation for further enhancement of quiet operation. The high-pressure switch protects the entire refrigeration system from abnormally high operating pressures. Aloss-of-chargeswitchisalsoprovidedtoprotectthesystem against low charge conditions. The unit also includes anti-short-cycling protection which protects the compressor from the damage that can be caused by rapid compressor cycling. The 24-v control circuit transformer permits quick, easy wiring of standard and programmable 24-v thermostats. Latest safety standards are assured through UL (Underwriters Laboratories) and UL, Canada approval. The 575B, 575C and 541A units utilize a state-of-the-art defrost board with field configurable timed defrost cycles. The defrost board may be easily configured for defrost cycles of 30 to 90 minutes, depending upon the application. Motor failure due to electrical overload is prevented by temperature and current sensors. Coil quality and performance are enhanced by copper tubes and aluminum fins, which provide maximum heat transfer. The coil is circuited for subcooling. A large heat transfer surface offers additional efficiency. INNOVATIVE BRYANT 524A-H INDOOR S ARE CUS- TOM MATCHED TO 575B, 575C AND 541A OUTDOOR S FOR SUPERIOR SYSTEM PERFORMANCE The 524A-H Series has excellent fan performance, efficient direct-expansion (DX) coils, easy installation, and a unique combination of indoor air quality features. Its versatility and state-of-the-art features help to ensure that your heat pump system provides economical performance now and in the future. Easy Installation and Service The 524A-H multiposition design and component layout helps to get the unit installed and running quickly. The direct-expansion (DX) coils have factoryinstalled thermostatic expansion valves (TXVs) with matching distributor nozzles. All 524A-H units also include factoryinstalled check valves and piping for heat pump duty with matching 575B, 575C or 541A units. The 524A-H units can be converted from horizontal to vertical operation by simply repositioning the unit. Drain pan connections are duplicated on both sides of the unit. Fan motors and contactors are prewired. For easier service, the filters, motor, drive, TXVs, check valves, and coil connections are accessible by removing a single side panel. Indoor-Air Quality (IAQ) Features The unique combination of IAQ features in the 524A-H Series indoor units helps to make sure that only clean, fresh, conditioned air is delivered to the occupied space. In the Cooling mode, direct-expansion (DX) cooling coils prevent the build-up of humidity in the room, even during part-load conditions. Unit sizes of 10 tons and above feature dual-circuit coils. Standard 2-in. disposable filters remove dust and airborne particles from the occupied space. Thermal insulation contains an immobilized anti-microbial agent to inhibit the growth of bacteria and fungi. The anti-microbial agent is registered with the U.S. Environmental Protection Agency (EPA). The pitched corrosion-free drain pan can be adjusted for a rightor left-hand connection to provide positive drainage and to prevent standing condensate. The 524A-H accessory economizer can provide ventilation air to improve indoor air quality. 06D Compressor Economy The 524A-H Series air handlers have low initial costs, and they continue to save money by providing reduced installation expense and energy-efficient performance. Quick installation reduces installation costs, and TXVs, check valves, and heat pump piping are factory-installed. High-efficiency, precision-balanced fans minimize air turbulence, surging, and unbalanced operation, cutting operating expenses. The economizer accessory precisely controls the blend of outdoor air and room air to achieve comfort levels. When the outside air enthalpy is suitable, outside air dampers can fully open to provide free cooling. Rugged Dependability The 524A-H units are made to last. The die-formed galvanized steel panels ensure structural integrity under all operating conditions. Galvanized steel fan housings are securely mounted to a die-formed galvanized steel deck. Coil housings are galvanized steel, and coils have aluminum fins mechanically bonded to copper tubes. The condensate drain pans provide corrosion-free performance. Coil Flexibility Model 524A-H coils have galvanized steel casings; inlet and outlet connections are on the same end. The coils are designed for use with Refrigerant 22 and have 3 / 8-in. diameter copper tubes mechanically bonded to aluminum sinewave fins. The coils include matched, factory-installed TXVs with matching distributor nozzles. Check valves and heat pump piping are also included in all 524A-H units. Duplicate piping access holes on both sides of the unit eliminate drilling; condensate connections for both vertical and horizontal installations are also provided on both sides of the unit. TABLE OF CONTENTS Page Features/Benefits... 1,2 ModelNumberNomenclature... 3,4 ARICapacityRatings...5 OptionsandAccessories PhysicalData... 10,11 Dimensions OutdoorUnits Dimensions IndoorUnits SelectionProcedure...19 PerformanceData TypicalPipingandWiring... 28,29 ElectricalData Controls... 36,37 TypicalWiringSchematic... 38,39 ApplicationData GuideSpecifications

3 MODEL NUMBER NOMENCLATURE 575B P X AA 575B Commercial Split System Heat Pump with Scroll Compressor Voltage Designation P 208/ E T Factory-Installed Options AA No Options HG Security Grille/Hail Guard Electric Heaters 000 No Factory-Installed Electric Heater X No Heat Installed (field-installed electric heaters available) Nominal Tons Tons Rated in accordance with ARI Standard 210. Certification applies only when used with proper components as listed with ARI. 575C P X C Commercial Split-System Heat Pump Unit With Scroll Compressor Voltage Designation E P 208/ T Heating X None Factory-Installed Options* Heating Capacity 000 No Heat Nominal Tons Cooling / *Contact your local representative for details. Quality Assurance Certified to ISO 9001:2000 3

4 MODEL NUMBER NOMENCLATURE (cont) 541A E X AA 541A Commercial Split System Heat Pump with Semi-Hermetic Compressor Voltage Designation E P 208/ Not Used Cooling Capacity Tons Condenser Coil Protection Options AA Standard Aluminum Fin/ Copper Tube Coil KA Pre-Coated Aluminum Fin/ Copper Tube Coil EA E-Coated Al Fin/Cu Tube Not Used Al Aluminum Cu Copper DX Direct Expansion TXV Thermostatic Expansion Valve *YC and WD option codes for 090 size with single-phase motors designate standard motor and high-static drive. All 524A090 and 120 units with an E voltage designation are triple voltage (i.e., / ). Size 524A180 is also triple voltage in the E configuration unless the alternate motor (YC or WD) option is used. Quality Assurance Certified to ISO 9001:2000 ANCE MX-0074/2003 CRE A S 524A S 4

5 ARI* CAPACITY RATINGS HEATING INDOOR COOLING OUTDOOR Hi-Temp Low-Temp 524A-H Net Capacity Net Capacity EER IPLV Net Capacity COP COP (Btuh) (Btuh) (Btuh) 575B , N/A 71, , C , N/A 93, , C , N/A 100, , A , , , C120 x , , A180 & 575C , , , COP Coefficient of performance = Btuh output Btuh input or Btuh output Unit Power Input x (Based on ARI conditions) EER Energy Efficiency Ratio = Btuh Unit Power Input (Based on ARI conditions) IPLV Integrated Part-Load Value *Air Conditioning & Refrigeration Institute. Energy Star compliant. NOTES: 1. Standard ratings are net values, reflecting the effects of circulating fan heat. Supplementary electric heat is not included. Ratings are based on: Cooling Standard: 80 F db, 67 F wb (wet bulb) indoor entering-air temperature and 95 F db entering-air outdoor unit. Hi-Temp Heating Standard: 70 F db (dry bulb) indoor entering-air temperature and 47 F db/43 F wb entering-air outdoor unit. Lo-Temp Heating Standard: 70 F db indoor entering-air temperature and 17 F wb/15 F db entering-air outdoor unit. Unit combinations are rated in accordance with ARI standard 210/ or 340/ as appropriate C120 and 541A180 are connected to 524A-H240,300 in duplex configurations. NOTES: 1. Estimated sound power levels, db re 1 Picowatt C and 541A data is based upon a limited amount of actual testing with the estimated sound power data being generated from this data in accordance with ARI standard 370 for large outdoor refrigerating and air-conditioning equipment A-H data is based on the ASHRAE calculation approach from the ASHRAE handbook 1987 HVAC Systems & Applications, Chapter 52. SOUND LEVELS (db), 60 Hz OCTAVE BAND dba 575C C A180 N/A A-H N/A A-H N/A A-H N/A A-H N/A A-H N/A Since this data is estimated, the sound power levels should not be guaranteed or certified as being the actual sound power levels. 5. The acoustic center of the unit is located at the geometric center of the unit. 5

6 OUTDOOR S OPTIONS AND ACCESSORIES ITEM OPTION* ACCESSORY Disconnect Switch (non-fused) (575C only) X Dura-Shield Coil Protection (575C, 541A only) X Convenience Outlet (115-v) (575C only) X Low Ambient Temperature Motormaster Control** X X Mounting Legs (541A180 only) X Outdoor Coil Grille (575C090,120; 541A180) X Outdoor Coil Hail Guard (575C090,120) X Outdoor Coil Security Grille/Hail Guard (575B072) X Programmable Thermostats X Non-Programmable Thermostats X *Factory-installed option. Field-installed accessory. **Available as an option or accessory for 575C; accessory only for 541A. Dura-Shield Outdoor Coil Options areavailabletomatchcoil protection to site conditions for optimum durability. See the table below and refer to the Application data for selection guidance. Consult your Bryant representative for further information. Low Ambient Temperature Motormaster Head Pressure Control operates in Cooling mode at outdoor temperatures below 55 F. The Motormaster control varies the speed of outdoor-fan motors to maintain correct condensing temperature down to 20 F. 115-V Convenience Outlet is available to provide power to electric drills, lights, and refrigerant recovery machines. This means you are not longer required to run a separate 115-v power supply. Non-Fused Disconnect Switch removes power locally at the condensing unit. This switch also includes a power lockout capability to protect the service person. This lockout switch saves the service person time and effort because there is no need to access a distant disconnect switch while servicing the unit. Outdoor Coil Hail Guard protects outdoor units from hail and other flying debris. Outdoor Coil Grille protects outdoor coil from large objects and vandalism. Mounting Legs hold unit approximately 18 in. off the ground to allow for condensate drain connection. Non-Programmable Thermostats provide one- or 2-stage cooling for control of unit. Matching subbases are available with or without tamperproof switches and automatic changeover. Bryant Commercial Programmable Thermostats provide efficient temperature control by allowing you to program heating and cooling setbacks and setups with provisions for weekends and holidays. OUTDOOR COIL PROTECTION APPLICATIONS (575C, 541A) ENVIRONMENT DESCRIPTION (Dura-Shield Option) Standard Mild Moderate Severe Industrial Coastal Coastal Coastal Standard, Al/Cu X Pre-Coated Al/Cu X E-Coated Al/Cu X X X Al/Cu Dura-Shield E-Coated Pre-Coated Aluminum Fin with Copper Tube Coil Family of Coil Protection Options Epoxy Coating Applied to Entire Coil Assembly Epoxy Coating Applied to Fin Stock Material 6

7 INDOOR S OPTIONS AND ACCESSORIES (cont) ITEM OPTION* ACCESSORY Alternate Fan Motors X Alternate Drives X Prepainted Units X Hot Water Heating Coil X Steam Heating Coil X Electric Heat X Economizer X Discharge Plenum X Return-Air Grille X Subbase X Overhead Suspension Package X CO 2 Sensors X Condensate Drain Trap X UV-C Germicidal Lamp X *Factory-installed option. Field-installed accessory. Alternate Fan Motors and Drives are available to provide the widest possible range of performance. Prepainted Steel Units are available from the factory for applications that require painted units. Units are painted with AmericanSterlingGraycolor. Two-Row Hot Water Coils have copper tubes mechanically bonded to aluminum plate fins and non-ferrous headers. One-Row Steam Coil has copper tubes and aluminum fins. The Inner Distributing Tube (IDT) design provides uniform temperatures across the coil face. The steam coil has a broad operating pressure range; up to 20 psig (138 kpag) at 260 F (127 C). The IDT steam coils are especially suited to applications where sub-freezing air enters the unit. Electric Resistance Heat Coils have an open-wire design and are mounted in a rigid frame. Safety cutouts for high temperature conditions are standard. Terminal block for single-point power connection is included. Economizer (Enthalpy Controlled) provides ventilation air and free cooling if outside ambient temperature and humidity aresuitable.canalsobeusedwithco 2 sensors to help meet indoor air quality requirements. Discharge Plenum directs the air discharge directly into the occupied space; integral horizontal and vertical louvers enable redirection of airflow. Accessory is available unpainted or painted. Field assembly required. Return-Air Grille provides a protective barrier over the returnair opening and gives a finished appearance to units installed in the occupied space. Accessory is available unpainted or painted. Subbase provides a stable, raised platform and room for condensate drain trap connection for vertical floor-mounted units. Accessory is available unpainted or painted. Overhead Suspension Package includes necessary brackets to support units in horizontal ceiling installations. CO 2 Sensors canbeusedinconjunctionwiththeeconomizer accessory to help meet indoor air quality requirements. The sensor signals the economizer to open when the CO 2 level in the space exceeds the set point. Condensate Drain Trap includes an overflow shutoff switch that can be wired to turn off the unit if the trap becomes plugged. Kit also includes a wire harness that can be connected to an alarm if desired. The transparent trap is designed for easy service and maintenance. UV-C Germicidal Lamps kill mold and fungus, which may grow on evaporator coil and condensate pan surfaces. The use of UV-C germicidal lamps eliminates the foul odors that result from this growth of mold and fungus. It also provides a self-cleaning function for the evaporator coil and drain pan. 7

8 OPTIONS AND ACCESSORIES (cont) BRYANT COMMERCIAL PROGRAMMABLE THERMOSTAT NON-PROGRAMMABLE THERMOSTAT H C Thermostats Factory-installed, internally-mounted, NEC (National Electrical Code) and UL (Underwriters Laboratories) approved non-fused switch provides unit power shutoff with disconnect lockout protection capability. The switch is accessible from outside the unit. 575C Unit-Mounted Disconnect Factory-installed, internally mounted and externally accessible 115-v female receptacle. Includes 15-amp GFI (Ground Fault Interrupter) receptacle with independent fuse protection. A factorysupplied step down transformer is wired to the load side of the unit s main power connection. 575C Convenience Outlet 8

9 OPTIONS AND ACCESSORIES (cont) HOT WATER OR STEAM COIL DISCHARGE PLENUM RETURN-AIR GRILLE SUBBASE 524A-H with Discharge Plenum, Return-Air Grille and Subbase FAN COIL 524A-H with Hot Water or Steam Coil FAN COIL ECONOMIZER UV-C GERMICIDAL LAMPS 524A-H with Economizer and UV-C Germicidal Lamps 524A-H with Condensate Drain Trap 9

10 PHYSICAL DATA OUTDOOR S 575B C C A180 NOMINAL CAPACITY (tons) OPERATING WEIGHTS (lb) Aluminum-Fin Coils (standard) Copper-Fin Coils (optional) N/A REFRIGERANT* Type R-22 Operating Charge, Typical (lb) Shipping Charge (lb) COMPRESSOR Type Scroll Semi-hermetic reciprocating Qty...Model 1...SR_ ZR_ ZR DF537 Oil Charge (oz) No. Cylinders N/A 6 Speed (rpm) OUTDOOR FANS Qty...Rpm Diameter (in.) Nominal Hp 3/ 4 1/ 4 1/ 2 Nominal Airflow (cfmtotal) ,000 Watts (total) OUTDOOR COILS Quantity Face Area (sq fttotal) Rows...Fins/in Storage Capacity (lb)** CONTROLS Pressurestat Settings (psig) High Pressure Open ± ± 20 Close ± ± 20 Low Pressure Open 5 7 ± 3 7 ± 3 Close ± 5 22 ± 5 PIPING CONNECTIONS (in. ODM) Suction 1 1 / / / / 8 Liquid 5/ 8 1/ 2 1/ 2 5/ 8 *Unit is factory supplied with holding charge only. Typical operating charge with 25 ft of interconnecting pipe. **Storage capacity of condenser coil with 80% full of liquid at 95 F. Equipped with electrically operated unloader, capacity steps 100%, 67% in cooling mode. 10

11 DX Direct Expansion TXV Thermostatic Expansion Valve *Refer to Application Data section, pages 41, for alternate motor data. Units are shipped without refrigerant charge. PHYSICAL DATA (cont) INDOOR S 524A-H NOMINAL CAPACITY (Tons) 7 1 / OPERATING WEIGHT (lb) Base Unit with TXV Plenum Economizer Hot Water Coil Steam Coil FANS Qty...Diam. (in.) Nominal Airflow (cfm) ,000 Airflow Range (cfm) , ,500 Nominal Motor Hp (Standard Motor)* 208/ / and Motor Speed (rpm) 208/ / and REFRIGERANT R-22 Operating charge (lb) (approx per circuit) / / / /4.5 DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins Max Working Pressure (psig) 435 Face Area (sq ft) No. of Splits Split Type...Percentage Face...50/50 Face...50/50 Face...60/40 No. of Circuits per Split Rows...Fins/in STEAM COIL Max Working Pressure (psig at 400 F) Total Face Area (sq ft) Rows...Fins/in HOT WATER COIL Max Working Pressure (psig) 150 Total Face Area (sq ft) Rows...Fins/in Water Volume (gal) (ft 3 ) PIPING CONNECTIONS Quantity...Size (in.) DX Coil Suction (ODF) / / / / / 8 DX Coil Liquid Refrigerant (ODF) / / / / / 8 Steam Coil, In (MPT) / / / / 2 Steam Coil, Out (MPT) / / / / 2 Hot Water Coil, In (MPT) / / Hot Water Coil, Out (MPT) / / Condensate (PVC) / 4 ODM/1 IDF FILTERS Throwaway Factory Supplied Quantity...Size (in.) x 24 x 2 Access Location x 20 x x 24 x 2 Right or Left Side x 20 x x 24 x x 24 x x 25 x 2 11

12 DIMENSIONS OUTDOOR S A FRONT B CONTROL BOX 19 3/8 10 C 7/8 4 PLACES /2 4 7/8 Line & Low Voltage Wiring Entrances 1-1/2 2-1/8 9-3/4 1-1/8 5-3/4 38-1/2 33 D 2-1/2 4-1/4 1-1/2 1-1/2 BOTTOM REAR /2 33 TOP 1-1/2 FRONT NOTES: 1. All dimensions are in inches. 2. Recommended clearance for proper airflow (local codes or jurisdictions may prevail): Top 60 in. Sides 24 in. on 3 sides; one side may have 6-in. clearance. (Control box side should have 24-in. clearance for service access.) 3. Corner Weights (lb): A = 86 B=84 C=92 D=90 575B /2 12

13 DIMENSIONS OUTDOOR S (cont) SERVICE VALVE CONNECTIONS Unit Suction Liquid 575C / 8 1 / 2 575C / 8 1 / 2 Center of Gravity. Direction of airflow. Dimensions in [ ] are in inches. NOTES: 1. Minimum clearance (local codes or jurisdiction may prevail): a. Bottom to combustible surfaces: 0 inches. b. Outdoor coil, for proper airflow: 36 inches one side, 12 inches the other. The side getting the greater clearance is optional. c. Overhead: 60 inches, to assure proper outdoor fan operation. d. Between units: Control box side, 42 inches per NEC. e. Between unit and ungrounded surfaces: Control box side, 36 inches per NEC. f. Between unit and block or concrete walls and other grounded surfaces, control box side, 42 inches per NEC. 2. With exception of the clearance for the outdoor coil as stated in Note 1B, a removable fence or barricade requires no clearance. 3. Units may be installed on combustible floors made from wood or Class A, B or C roof covering material. ELECTRICAL CHARACTERISTICS Std. Unit Wt. Corner W ALUMINUM COIL Corner X Corner Y Corner Z Center of Gravity mm [in.] Std. Unit Wt. Corner W Corner X COPPER COIL Corner Y Corner Z Center of Gravity mm [in.] lb kg lb kg lb kg lb kg lb kg X Y lb kg lb kg lb kg lb kg lb kg X Y 575C / , [32.00] 575C / , , [35.00] [26.00] [26.25] [33.50] [36.50] [25.00] [25.25] 575C090,120 13

14 DIMENSIONS OUTDOOR S (cont) WEIGHT DISTRIBUTION 541A 180 WEIGHT lb (kg) Total Support Point Operating Weight (364) (72) (110) (111) (72) NOTE: Recommended service clearances are as follows (local codes or jurisdictions may prevail): Side (compressor) 3 1 / 2 ft (1067 mm) Side (opposite compressor) 3 ft (914 mm) Ends 2 ft (616 mm) Top 5 ft (1524 mm) 541A180 14

15 DIMENSIONS INDOOR S TXV Thermostatic Expansion Valve NOTES: 1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: Rear: 3 (76 mm) Front: 2-6 (.76 m) Right Side: 2-6 (.76 m) Left Side: 2-6 (.76 m) Local codes or jurisdiction may prevail. 4. Liquid piping not supplied. 5. Duct flange is factory supplied and field installed. WEIGHT lb 524A-H A-H A-H090,120 15

16 DIMENSIONS INDOOR S (cont) TXV Thermostatic Expansion Valve NOTES: 1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: Rear: 3 (76 mm) Front: 2-6 (.76 m) Right Side: 2-6 (.76 m) Left Side: 2-6 (.76 m) Local codes or jurisdiction may prevail. 4. Liquid piping not supplied. 5. Duct flange is factory supplied and field installed. WEIGHT lb 524A-H A-H A-H180,240 16

17 DIMENSIONS INDOOR S (cont) CONTROL BOX ALTERNATE ACCESS FOR FILTERS ALTERNATE ACCESS FOR MOTOR/BELT RETURN AIR OPENING CONTROL BOX TXV Thermostatic Expansion Valve NOTES: 1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: Rear:3 (76.2 mm) (2-6 [.76 m] with electric heat accessory) Front: 2-6 (.76 m) Right Side: 2-6 (.76 m) Left Side: 2-6 (.76 m) Local codes or jurisdiction may prevail. 4. Liquid piping not supplied. 5. Duct flange is factory supplied and field installed. WEIGHT lb 524A-H A-H300 17

18 DIMENSIONS INDOOR S (cont) 524A-H090,120 with Electric Heater Accessory SIZE A B C D E F G H J / / / / / / / / 8 [387.4] [1381.1] [58.7] [641.4] [269.9] [406.4] [414.3] [476.3] [327.0] / / / / / / / 16 [390.5] [1636.8] [26.9] [766.8] [311.2] [482.6] [414.0] [558.8] [417.1] NOTE: Dimensions in [ ] are millimeters. 524A-H with Electric Heater Accessory 18

19 I DETERMINE COOLING AND HEATING LOAD REQUIREMENTS. Given: TotalCoolingLoad(TC)... 88,000Btuh Sensible Heat Capacity (SHC) ,000 Btuh Temperature Air Entering OutdoorUnit(Edb)... 95F Temperature Air-Entering Indoor Unit...80Fedb/67Fewb Indoor-AirQuantity...3,000cfm ExternalStaticPressure in.wg Heating Load at Winter Design ,000 Btuh Temperature Air Entering Indoor Unit, Heating... 70F WinterDesign,Outdoor...0 F PowerSupply(V-Ph-Hz) II SELECT SYSTEM THAT SATISFIES LOAD REQUIREMENTS. Select heat pump systems to satisfy cooling design load requirements. Enter the Combination Ratings, Gross Capacities Cooling tables, page 20. At outdoor unit air entering temperature of 95 F, indoor unit air entering at 3,000 cfm, and 80 edb/67 ewb, find that a 575C090 outdoor unit matched with a 524A-H090 indoor unit delivers a TC of 90,300 Btuh and SHC of 68,400 Btuh at design conditions. These values satisfy the cooling requirements of the examples shown. III DETERMINE THE HEATING CAPACITY OF SELECTED SYSTEM. Enter the Combination Ratings Net Capacities Heating tables on page 22 for units 575C090 and 524A-H090. Under the 0 F column, read down to the 70 F indoor-air section at 3,000 cfm and find an integrated heating capacity of 47,900 Btuh. The heating requirement is 90,000 Btuh, and the unit capacity is 47,900; therefore, 42,100 Btuh of supplemental electric heat is needed. SELECTION PROCEDURE (With Example) Select an electric heater that satisfies the voltage designation and the supplemental heat requirement. Refer to the Electric Heater Data Indoor Units table, page 34. The supplemental heating load required is 42,100 Btuh. ToconvertBtuhtokW: 42,100 Btuh 3413 Btuh/kW = 12.3 kw of supplemental heat required. For the 524A-H090, the heater part no. CAELHEAT007A00 is rated 15 kw at 240 volts. To calculate kw at 230 volt, use the voltage multiplier found on page kw x (230 volt multiplier) = 13.8 kw at 230 volts. 15 kw x x 3413 Btuh/kW = 46,997 Btuh at 230 volts. The output of the CAELHEAT007A00 heater de-rated for 230 volt is 46,977 Btuh which satisfies the supplemental heat requirement for this example. IV DETERMINE FAN RPM AND BHP (BRAKE HORSEPOWER). At the Indoor Unit Fan Performance Data table, page 27, enter the 524A-H090 section at 3,000 cfm and move to External Static Pressure (ESP) 0.80 column. Note that the conditions require 800 rpm and 1.24 bhp. V DETERMINE MOTOR AND DRIVE. For the 524A-H090 unit, find the type of drive that satisfies the 800 rpm requirement in the Drive Data tables on page 42. The Medium-Static Drive table shows an rpm range of 733 to 949 which satisfies this rpm requirement for the example described. Next, enter the Fan Motor Data tables on page 41, and find that a 208/ standard motor has a motor hp of 2.4 which satisfies the bhp requirement for the example described. Select the standard motor and medium-static drive (option code HC or FD). 19

20 OUTDOOR INDOOR 524A-H PERFORMANCE DATA INTEGRATED HEATING CAPACITIES AIRFLOW (Cfm) TEMPERATURE OF AIR ENTERING OUTDOOR (F db) Cap. kw Cap. kw Cap. kw Cap. kw Cap. kw 575B , C , C , A , C120 (2) 240 8, C120; 541A , OUTDOOR INDOOR 524A-H AIRFLOW (Cfm) TEMPERATURE OF AIR ENTERING OUTDOOR (F db) Cap. kw Cap. kw Cap. kw Cap. kw Cap. kw 575B , C , C , A , C120 (2) 240 8, C120; 541A , Cap. Integrated Heating Capacity (1000 Btuh) includes indoor-fan motor heat and effects of defrost. kw Total Compressor Motor Power Input NOTES: 1. To obtain total outdoor unit power, add outdoor fan kw shown to compressor draw: 575C120 and 541A kw. 2. Ratings are without supplementary heat and are based on 70 F db air entering indoor unit. Wet-bulb temperature entering outdoor unit varies with dry bulb; at 47 F db, wb is 43 F; at 17 F db, wb is 15 F. COMBINATION RATINGS GROSS CAPACITIES COOLING 575B072/524A-H090 Temp (F) Indoor Entering Air Cfm/BF Air Ent 1800/ / /0.11 Outdoor Coil Indoor Entering Air Ewb (F) (Edb) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw C090/524A-H090 Temp (F) Indoor Entering Air Cfm/BF Air Ent 2250/ / /0.13 Outdoor Coil Indoor Entering Air Ewb (F) (Edb) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw BF Edb Ewb kw Ldb Lwb SHC TC Bypass Factor Entering Dry Bulb Entering Wet Bulb Compressor Motor Power Input, Total Leaving Dry Bulb Leaving Wet Bulb Sensible Heat Capacity, Gross (1000 Btuh) Total Capacity, Gross (1000 Btuh) NOTES: 1. Direct interpolation is permissible. Do not extrapolate. 2. SHC is based on 80 F db air entering indoor coil. Below 80 F db, subtract (Corr Factor x Cfm) from SHC. Above 80 F db, add (Corr Factor x Cfm) to SHC. BYPASS FACTOR Interpolation is permissible. Correction Factor = 1.10 x (1 BF) x (db 80) 3. Formulas: ENTERING-AIR DRY-BULB TEMP (F) under over 85 Correction Factor tldb = tedb sensible heat capacity (Btuh) 1.1 x cfm Use formula given. tlwb = wet-bulb temperature corresponding to enthalpy of air leaving indoor coil (hlwb) total capacity (Btuh) hlwb = hewb 4.5 x cfm where hewb = enthalpy of air entering indoor coil 4. Capacities are based on 25 actual ft (40 equivalent ft) of interconnecting piping sized to the outdoor unit field connections. (Equivalent length is equal to the actual length plus a 50% allowance for fitting losses.) 20

21 PERFORMANCE DATA (cont) COMBINATION RATINGS (cont) GROSS CAPACITIES COOLING (cont) 575C120/524A-H120 Temp (F) Air Ent Outdoor Coil (Edb) Indoor Entering Air Cfm/BF 3000/ / /0.08 Indoor Entering Air Ewb (F) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw A180/524A-H180 Temp (F) Air Ent Outdoor Coil (Edb) BF Edb Ewb kw Ldb Lwb SHC TC Indoor Entering Air Cfm/BF 4500/ / /0.08 Indoor Entering Air Ewb (F) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw Bypass Factor Entering Dry Bulb Entering Wet Bulb Compressor Motor Power Input, Total Leaving Dry Bulb Leaving Wet Bulb Sensible Heat Capacity, Gross (1000 Btuh) Total Capacity, Gross (1000 Btuh) NOTES: 1. Direct interpolation is permissible. Do not extrapolate. 2. SHC is based on 80 F db air entering indoor coil. Below 80 F db, subtract (Corr Factor x Cfm) from SHC. Above 80 F db, add (Corr Factor x Cfm) to SHC. BYPASS FACTOR ENTERING-AIR DRY-BULB TEMP (F) under over 85 Correction Factor Interpolation is permissible. Correction Factor = 1.10 x (1 BF) x (db 80) Use formula given. (2) 575C120/524A-H240 Temp (F) Air Ent Outdoor Coil (Edb) Formulas: Indoor Entering Air Cfm/BF 6,000/0.05 8,000/ ,000/0.08 Indoor Entering Air Ewb (F) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw C120, 541A180/524A-H300 Temp (F) Air Ent Outdoor Coil (Edb) Indoor Entering Air Cfm/BF 7,500/ ,000/ ,500/0.08 Indoor Entering Air Ewb (F) TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw TC SHC kw tldb = tedb sensible heat capacity (Btuh) 1.1 x cfm tlwb = wet-bulb temperature corresponding to enthalpy of air leaving indoor coil (hlwb) total capacity (Btuh) hlwb = hewb 4.5 x cfm where hewb = enthalpy of air entering indoor coil 4. Capacities are based on 25 actual ft (40 equivalent ft) of interconnecting piping sized to the outdoor unit field connections. (Equivalent length is equal to the actual length plus a 50% allowance for fitting losses.) 21

22 PERFORMANCE DATA (cont) COMBINATION RATINGS (cont) NET CAPACITIES HEATING 575B072/524A-H090 Temp (F) Air Ent Indoor Coil Indoor Airflow (Cfm) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw C090/524A-H090 Temp (F) Air Ent Indoor Coil Indoor Airflow (Cfm) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw kw Compressor Motor Power Input (Total) TH Total Heating Capacity (1000 Btuh) THI Integrated Heating Capacity (1000 Btuh) 22

23 PERFORMANCE DATA (cont) COMBINATION RATINGS (cont) NET CAPACITIES HEATING (cont) 575C120/524A-H120 Temp (F) Air Ent Indoor Coil Indoor Airflow (Cfm) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw A180/524A-H180 Temp (F) Air Ent Indoor Coil Indoor Airflow (Cfm) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw kw Compressor Motor Power Input (Total) TH Total Heating Capacity (1000 Btuh) THI Integrated Heating Capacity (1000 Btuh) 23

24 TWO 575C120/524A-H240 Temp (F) Air Ent Indoor Coil ,000 8,000 10,000 6,000 8,000 10,000 6,000 8,000 10,000 6,000 8,000 10,000 Indoor Airflow (Cfm) PERFORMANCE DATA (cont) COMBINATION RATINGS (cont) NET CAPACITIES HEATING (cont) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw C120/541A180/524A-H300 Temp (F) Air Ent Indoor Coil ,500 10,000 12,500 7,500 10,000 12,500 7,500 10,000 12,500 7,500 10,000 12,500 Indoor Airflow (Cfm) kw Compressor Motor Power Input (Total) TH Total Heating Capacity (1000 Btuh) THI Integrated Heating Capacity (1000 Btuh) Air Temp Entering Outdoor Coil (F) TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw TH THI kw

25 INDOOR ACCESSORY COILS HYDRONIC HEATING CAPACITIES PERFORMANCE DATA (cont) INDOOR ACCESSORY COILS HEATING CORRECTION FACTORS 524A-H AIRFLOW (Cfm) 2,250 3,000 3,750 3,000 4,000 5,000 4,500 6,000 7,500 6,000 8,000 10,000 7,500 10,000 12,500 Cap. Capacity (Btuh in thousands) Ldb Leaving-Air Dry-Bulb Temp (F) PD Pressure Drop (ft water) *Based on 5 psig steam, 60 F entering-air temperature. All steam coils are non-freeze type. Based on 200 F entering water, 20 F water temperature drop, 60 F entering-air temperature. NOTES: 1. Maximum operating limits for heating coils: 175 psig at 400 F. Capacity (Btuh) 2. Leaving db = ent db (F) x cfm 3. See Heating Correction Factors table. 1-ROW STEAM* 2-ROW HOT WATER COIL Cap. Ldb Cap. Ldb Gpm PD Water Temp Drop (F) HOT WATER COIL Ent Water Entering-Air Temp (F) Temp (F) STEAM COIL Steam Pressure Entering-Air Temp (F) (psig) NOTE: Multiply capacity given in the Hydronic Heating Capacities table by the correction factor for conditions at which unit is actually operating. Correct leaving-air temperature using formula in Note 2 of Hydronic Heating Capacities table. INDOOR FACTORY-SUPPLIED PRESSURE DROP (in. wg) 524A-H A-H A-H A-H A-H 300 AIRFLOW (Cfm) 2,250 3,000 3,750 3,000 4,000 5,000 4,500 6,000 7,500 6,000 8,000 10,000 7,500 10,000 12,500 PRESSURE DROP (in. wg)

26 PERFORMANCE DATA (cont) ACCESSORY PLENUM AIR THROW DATA INDOOR S (Ft) 524A-H AIRFLOW (Cfm) VANE DEFLECTION Straight 22 1 / , , , , , NOTE: Throw distances shown are for 75 fpm terminal velocity. Use the multipliers below to determine throw values for other terminal velocities. TERMINAL VELOCITY (Fpm) THROW FACTOR 50 X X X 0.50 ACCESSORY PRESSURE DROP INDOOR S (in. wg) 524A-H AIRFLOW (Cfm) 2,250 3,000 3,750 3,000 4,000 5,000 4,500 6,000 7,500 6,000 8,000 10,000 7,500 10,000 12,500 DISCHARGE PLENUM RETURN AIR GRILLE HEATING COILS Hot Water Steam Electric ECONOMIZER

27 PERFORMANCE DATA (cont) FAN PERFORMANCE DATA in. wg ESP 524A-H AIRFLOW (Cfm) EXTERNAL STATIC PRESSURE (in. wg) Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2, , , , , , , , , , , , , , , , , , , , , , , , , FAN PERFORMANCE DATA in. wg ESP 524A-H AIRFLOW (Cfm) EXTERNAL STATIC PRESSURE (in. wg) Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2, , , , , , , , , , , , , , , , , , , , , , , , , Bhp Brake Horsepower Input to Fan ESP External Static Pressure Bold indicates field-supplied drive is required. Plain type indicates standard motor and standard drive. Underline indicates a different motor and drive combination other than the standard motor and standard drive combination is required. Refer to fan motor and drive tables, pages 41 and 42 to complete selection. NOTES: 1. Maximum allowable fan speed is 1100 rpm for unit size 300; 1200 rpm for all other sizes. 2. Fan performance is based on deductions for wet coil, clean 2-in. filters, and unit casing. 3. The medium-static drive and standard motor combination is not available for 300 size. 27

28 TYPICAL PIPING AND WIRING WEATHERPROOF FUSED DISCONNECT* PER NEC FIELD SUPPLIED POWER LLSV** HEAT PUMP MOISTURE INDICATOR SIGHT GLASS** ELECTRIC HEATER ACCESSORY POWER WIRES PITCH INSULATED VAPOR LINE FILTER DRIER LIQUID LINE 524A-H090 CONTROL WIRES CONDENSATE DRAIN POWER WIRES INDOOR THERMOSTAT FUSED DISCONNECT PER NEC TO OPEN SIGHT DRAIN FIOP Factory-Installed Option LLSV Liquid Line Solenoid Valve NEC National Electrical Code TXV Thermostatic Expansion Valve *Field supplied. Accessory item. **Field supplied. NOTES: 1. All piping must follow standard refrigerant piping techniques. 2. All wiring must comply with the applicable local and national codes. 3. Wiring and piping shown are general points-of-connection guides only and are not intended for, or to include all details for, a specific installation. 4. Liquid line solenoid valve (solenoid drop control) is recommended to prevent refrigerant migration to the compressor. 5. Internal factory-supplied TXVs not shown. 575C090 and 524A-H090 28

29 TYPICAL PIPING AND WIRING (cont) ELECTRIC HEATER ACCESSORY DISCONNECT PER NEC 24 V CONTROL WIRE WEATHERPROOF FUSED DISCONNECT* PER NEC 575C120 HEAT PUMP B BULB CAPILLARY TUBES RETURN AIR 8 DIAMS MIN FIELD SUPPLIED POWER SUBBASE ACCESSORY 524A-H DIAMS MIN 10 DIAMS MIN SIGHT GLASS CONDENSATE DRAIN FILTER DRIER INSULATED VAPOR LINE POWER WIRES LIQUID LINE WEATHERPROOF FUSED DISCONNECT* PER NEC INSULATED VAPOR LINE BIFLOW LIQUID LINE SOLENOID VALVE 575C120 HEAT PUMP A NEC National Electrical Code TXV Thermostatic Expansion Valve Piping *Field supplied. Field supplied. FIELD SUPPLIED POWER LIQUID LINE POWER WIRES BIFLOW LIQUID LINE SOLENOID VALVE NOTES: 1. All piping must follow standard refrigerant piping techniques. 2. All wiring must comply with applicable local and national codes. 3. Wiring and piping shown are general points-of-connection guides only and are not intended for, or to include all details for, a specific installation. 4. Filter driers must be bi-flow type suited for heat pump duty. 5. Heat Pump Unit A should be the first on, last off and be connected to the lower half of the coil. 6. Internal factory-supplied TXVs and check valves not shown. 575C120, 541A180 and 524A-H240,300 (Size 240 Shown) 29

30 575B C C A180 FLA Full Load Amps LRA Locked Rotor Amps MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection NEC National Electrical Code (U.S.A. Standard) RLA Rated Load Amps *Units are suitable for use on electrical systems where voltage supplied to the unit terminals is not below or above the listed limits. MCA and MOCP values shown are for units without convenience outlets. For units with convenience outlet, see below: ELECTRICAL DATA OUTDOOR NOMINAL VOLTAGE VOLTAGE RANGE* COMPRESSOR FAN MOTORS POWER SUPPLY (V-Ph-Hz) Min Max RLA LRA FLA MCA MOCP 208/ / / / NOTES: 1. The MCA and MOCP values are calculated in accordance with the NEC, Article Motor RLA and LRA values are established in accordance with Underwriters Laboratories (UL), Standard The 575-v units are UL, Canada-listed only. 4. Convenience outlet is available as either a factory-installed option or a field-installed accessory on 575C090 and 120 units only and is 115-v, 1 ph, 60 Hz. V-PH-Hz MCA MOCP 575C / / C B C C A180 Only INDOOR STANDARD MOTORS 524A-H V*-PH-Hz VOLTAGE LIMITS FAN MOTOR Hp (kw) FLA POWER SUPPLY Minimum Circuit Amps MOCP 208/ (1.79) / (1.79) (1.79) (1.49) / (1.79) (1.79) (1.49) / (2.76) (2.76) (2.24) / (3.73) 14.6/ / / (3.73) (3.73) / (5.59) 21.5/ / (5.59) (5.59) See Legend and Notes on page

31 524A-H FLA Full Load Amps MOCP Maximum Overcurrent Protection *Motors are designed for satisfactory operation within 10% of nominal voltages shown. Voltages should not exceed the limits shown in the Voltage Limits column. NOTES: 1. Minimum circuit amps (MCA) and MOCP values are calculated in accordance with NEC (National Electrical Code), Article Motor FLA values are established in accordance with UL (Underwriters Laboratories) Standard Unbalanced 3-Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percentage of voltage imbalance. max voltage deviation from average voltage =100x average voltage EXAMPLE: Supply voltage is ELECTRICAL DATA (cont) INDOOR ALTERNATE MOTORS V*-PH-Hz FAN MOTOR POWER SUPPLY VOLTAGE LIMITS Hp (kw) FLA Minimum Circuit Amps MOCP 208/ (1.79) / (2.16) 7.5/ / (2.16) (2.24) / (2.76) 10.5/ / (2.76) (2.24) / (3.73) 14.6/ / / (3.73) (3.73) / (5.59) 21.5/ / / (5.59) (5.59) / (7.46) 28.2/ / / (7.46) (7.46) AB = 243 v BC = 236 v AC = 238 v Average Voltage = = 3 = 239 Determine maximum deviation from average voltage. (AB) = 4 v (BC) = 3 v (AC) = 1 v Maximum deviation is 4 v. Determine percent voltage imbalance. 4 % Voltage Imbalance = 100 x 239 =1.7% This amount of phase imbalance is satisfactory because it is below the maximum allowable 2%. IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately. 31

32 FLA Full Load Amps Hp Horsepower MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection (Amps) *Values shown are for single-point connection of electric heat accessory and air handler. Single-phase motors. All other motors are 3-phase. NOTES: 1. Electrical resistance heaters are rated at 240 v, 480 v, or 575 v. To determine heater capacity (kw) at unit nameplate multiply the 240-v, 480-v, or 575-v capacity (kw) by the factor shown in the table below for the unit voltage. ELECTRICAL DATA (cont) ELECTRIC HEATER DATA INDOOR S HEATER PART NO. V-PH-Hz ELECTRIC HEATER(S) FAN MOTOR Nominal Actual Capacity (kw) Capacity (kw) FLA Hp kw FLA Stage 1 Stage 2 Total MCA* MOCP* CAELHEAT001A CAELHEAT002A CAELHEAT003A CAELHEAT004A A-H CAELHEAT005A CAELHEAT006A CAELHEAT007A CAELHEAT008A CAELHEAT009A HEATER ACTUAL HEATER VOLTAGE RATING VOLTAGE The following equation converts kw of heat energy to Btuh: kw x 3,412 = Btuh. 3. Heater contactor coils are 24 v and require 8 va holding current. 4. Electric heaters are tested and ETL approved at maximum total external static pressure of 1.9 in. wg. 5. MCA and MOCP values apply to both standard and alternate factory-supplied motors. 6. Approximate shipping weight for CAELHEAT001A00-015A00 is 55 lb each. 7. Approximate shipping weight for CAELHEAT016A00-027A00 is 60 lb each. 8. Approximate shipping weight for CAELHEAT028A00-039A00 is 75 lb each. 32

33 FLA Full Load Amps Hp Horsepower MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection (Amps) *Values shown are for single-point connection of electric heat accessory and air handler. Single-phase motors. All other motors are 3-phase. NOTES: 1. Electrical resistance heaters are rated at 240 v, 480 v, or 575 v. To determine heater capacity (kw) at unit nameplate multiply the 240-v, 480-v, or 575-v capacity (kw) by the factor shown in the table below for the unit voltage. ELECTRICAL DATA (cont) ELECTRIC HEATER DATA INDOOR S (cont) HEATER PART NO. V-PH-Hz ELECTRIC HEATER(S) FAN MOTOR Nominal Actual Capacity (kw) FLA Hp kw FLA Capacity (kw) Stage 1 Stage 2 Total MCA* MOCP* CAELHEAT010A CAELHEAT011A A-H CAELHEAT012A CAELHEAT013A CAELHEAT014A CAELHEAT015A HEATER ACTUAL HEATER VOLTAGE RATING VOLTAGE The following equation converts kw of heat energy to Btuh: kw x 3,412 = Btuh. 3. Heater contactor coils are 24 v and require 8 va holding current. 4. Electric heaters are tested and ETL approved at maximum total external static pressure of 1.9 in. wg. 5. MCA and MOCP values apply to both standard and alternate factory-supplied motors. 6. Approximate shipping weight for CAELHEAT001A00-015A00 is 55 lb each. 7. Approximate shipping weight for CAELHEAT016A00-027A00 is 60 lb each. 8. Approximate shipping weight for CAELHEAT028A00-039A00 is 75 lb each. 33

34 HEATER PART NO. V-PH-Hz 524A-H180,240 CAELHEAT016A00 FLA Full Load Amps Hp Horsepower MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection (Amps) *Values shown are for single-point connection of electric heat accessory and air handler. Single-phase motors. All other motors are 3-phase. NOTES: 1. Electrical resistance heaters are rated at 240 v, 480 v, or 575 v. To determine heater capacity (kw) at unit nameplate multiply the 240-v, 480-v, or 575-v capacity (kw) by the factor shown in the table below for the unit voltage. ELECTRICAL DATA (cont) ELECTRIC HEATER DATA INDOOR S (cont) CAELHEAT017A CAELHEAT018A CAELHEAT019A CAELHEAT020A CAELHEAT021A CAELHEAT022A CAELHEAT023A CAELHEAT024A CAELHEAT025A CAELHEAT026A CAELHEAT027A HEATER ACTUAL HEATER VOLTAGE RATING VOLTAGE ELECTRIC HEATER(S) FAN MOTOR Nominal Actual Capacity (kw) FLA Hp kw FLA Capacity (kw) Stage 1 Stage 2 Total MCA* MOCP* The following equation converts kw of heat energy to Btuh: kw x 3,412 = Btuh. 3. Heater contactor coils are 24 v and require 8 va holding current. 4. Electric heaters are tested and ETL approved at maximum total external static pressure of 1.9 in. wg. 5. MCA and MOCP values apply to both standard and alternate factory-supplied motors. 6. Approximate shipping weight for CAELHEAT001A00-015A00 is 55 lb each. 7. Approximate shipping weight for CAELHEAT016A00-027A00 is 60 lb each. 8. Approximate shipping weight for CAELHEAT028A00-039A00 is 75 lb each. 34

35 FLA Full Load Amps Hp Horsepower MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection (Amps) *Values shown are for single-point connection of electric heat accessory and air handler. Single-phase motors. All other motors are 3-phase. NOTES: 1. Electrical resistance heaters are rated at 240 v, 480 v, or 575 v. To determine heater capacity (kw) at unit nameplate multiply the 240-v, 480-v, or 575-v capacity (kw) by the factor shown in the table below for the unit voltage. ELECTRICAL DATA (cont) ELECTRIC HEATER DATA INDOOR S (cont) ELECTRIC HEATER(S) FAN MOTOR HEATER PART NO. V-PH-Hz Nominal Actual Capacity (kw) FLA MCA* MOCP* Hp kw FLA Capacity (kw) Stage 1 Stage 2 Total CAELHEAT028A CAELHEAT029A CAELHEAT030A CAELHEAT031A CAELHEAT032A CAELHEAT033A A-H CAELHEAT034A CAELHEAT035A CAELHEAT036A CAELHEAT037A CAELHEAT038A CAELHEAT039A HEATER ACTUAL HEATER VOLTAGE RATING VOLTAGE The following equation converts kw of heat energy to Btuh: kw x 3,412 = Btuh. 3. Heater contactor coils are 24 v and require 8 va holding current. 4. Electric heaters are tested and ETL approved at maximum total external static pressure of 1.9 in. wg. 5. MCA and MOCP values apply to both standard and alternate factory-supplied motors. 6. Approximate shipping weight for CAELHEAT001A00-015A00 is 55 lb each. 7. Approximate shipping weight for CAELHEAT016A00-027A00 is 60 lb each. 8. Approximate shipping weight for CAELHEAT028A00-039A00 is 75 lb each. 35

36 SEQUENCE OF OPERATION 575B072 OUTDOOR WITH 524A-H090 INDOOR When power is supplied to unit, the transformer (TRAN) and crankcase heater (CCH) are energized. Cooling On a call for cooling, the thermostat completes the following circuits: R-G, R-Y, and R-O. If the compressor recycle delay of 3 minutes is complete, the compressor and outdoor fan start. The reversing valve is energized for cooling and the indoor-fan motor starts. When the thermostat is satisfied, the circuits are opened, and the compressor, outdoor-fan motor, and indoor-fan motor stop. The reversing valve is deenergized. Heating On a call for heating, the thermostat completes the following circuits: R-G and R-Y. If the compressor recycle delay of 3 minutes is complete, the compressor and outdoor fan start. The indoor-fan motor will also start. If room temperature continues to fall, the thermostat completes circuit R-W. If the optional electric heat package is used, the heat relay is energized, and the electric heaters are energized. When the thermostat is satisfied, the circuits are opened, and the compressor, outdoor-fan motor, heaters, and indoor-fan motor stop. CONTROLS Defrost Defrost board (DB) is a time and temperature control, which includes a field-selectable time period between checks for frost (30, 50, and 90 minutes). Electronic timer and defrost cycle start only when contactor is energized and defrost thermostat (DFT) is closed (below 36 F [2.2 C]). Defrost mode is identical to Cooling mode, except outdoor-fan motor (OFM) stops and a bank of supplemental electric heat turns on to warm air supplying the conditioned space. Defrost mode is terminated when the DFT reaches 51 F (10.5 C). Air Circulation When the fan switch is at FAN ON, the indoor-air fans operate continuously to provide ventilation. The thermostat operates the other components as described above. Emergency Heat Cycle If the compressor is inoperative due to a tripped safety device, the second stage of the thermostat automatically energizes the indoor-air fan and the electric resistance heaters. If desired, the compressor can be manually locked out by setting the thermostat for emergency heat. In this instance, the emergency heat indicator light on the thermostat assembly is illuminated. 36

37 SEQUENCE OF OPERATION 575C090,120 OUTDOOR WITH 524A090,120 INDOOR When power is supplied to unit, the transformer (TRAN) is energized. The crankcase heater is also energized. Cooling With the thermostat in the cooling position, and when the space temperature comes within 2 F of the cooling set point, the thermostat makes circuit R-O. This energizes the reversing valve solenoid (RVS) and places the unit in standby condition for cooling. As the space temperature continues to rise, the second stage of the thermostat makes, closing circuit R-Y. When compressor time delay (5 ± 2 minutes) is completed, a circuit is made to contactor (C), starting the compressor (COMP) and outdoor-fan motor (OFM). Circuit R-G is made at the same time, energizing the indoor-fan contactor (IFC) and starting the indoor-fan motor (IFM) after one-second delay. When the thermostat is satisfied, contacts open, deenergizing C.TheCOMP,IFM,andOFMstop. Heating On a call for heat, thermostat makes circuits R-Y and R-G. When compressor time delay (5 ± 2 minutes) is completed, a circuit is made to C, starting COMP and OFM. Circuit R-G also energizes IFC and starts IFM after a 1-second delay. Should room temperature continue to fall, circuit R-W is made through second-stage thermostat bulb. If optional electric heat package is used, a relay is energized, bringing on supplemental electric heat. When thermostat is satisfied, contacts open, deenergizing contactor and relay; motors and heaters deenergize. Defrost Defrost board (DB) is a time and temperature control, which includes a field-selectable time period between checks for frost (30, 50, and 90 minutes). Electronic timer and defrost cycle start only when contactor is energized and defrost thermostat (DFT) is closed (below 28 F [ 2.2 C]). Defrost mode is identical to Cooling mode, except outdoor-fan motor (OFM) stops and a bank of supplemental electric heat turns on to warm air supplying the conditioned space. Defrost mode is terminated when the DFT reaches 65 F (18.3 C). SEQUENCE OF OPERATION 541A180 OUTDOOR WITH 524A-H180 INDOOR Assume the power is on and the thermostat is set at SYSTEM AUTO, FAN AUTO, and desired temperature. Cooling If power to unit has been off for an extended period of time, energize crankcase heater at least 24 hours prior to starting compressor. The indoor fans, outdoor fans, and compressor start within 5 minutes (due to compressor time delay) on command from the controlling thermostat in either the Cooling or the Heating mode of operation. When first stage cooling is required, thermostat CONTROLS (cont) (TC1) closes, causing the heat pump to start with an unloaded compressor. When TC2 closes, demanding additional cooling, the compressor loads. In a system with a one-stage thermostat, the unit may be wired so the compressor starts fully loaded. The RVS (reversing valve solenoid) is deenergized during Cooling mode operation. Heating First Stage When the thermostat (TH1) calls for heating, the indoor-fan motor, outdoor-fan motors, and the compressor (fully loaded) are energized. The RVS is energized in the Heating mode. Second Stage If additional heating is required, TH2 on the thermostat closes, causing the auxiliary heat supply (i.e., electric resistance heat) to be energized in 1 or 2 stages depending on the number of stages available and whether the outdoor thermostats are closed. Defrost Cycle Defrost is initiated by a timer which may be set to 30, 50, or 90 minutes. The cycle begins when the defrost timer motor contacts close for 20 seconds. If the defrost thermostat is closed, the reversing valve and outdoor-air fans are deenergized. The unit operates on this modified Cooling mode to defrost the coil. The defrost cycle continues until the defrost thermostat or defrost high pressure switch opens or 10 minutes have elapsed. When the unit is in the defrost cycle, electric resistance heat is energized to prevent cold air recirculation during this modified Cooling mode. Air Circulation When the fan switch is at FAN ON, the indoor-air fans operate continuously to provide ventilation. The thermostat operates the other components as described above. Emergency Heat Cycle If the compressor is inoperative due to a tripped safety device, the second stage of the thermostat automatically energizes the indoor-air fan and the electric resistance heaters. If desired, the compressor can be manually locked out by setting the thermostat for emergency heat. In this instance, the emergency heat indicator light on the thermostat assembly is illuminated. SEQUENCE OF OPERATION DUPLEX 575C120, 541A180 OUTDOOR S WITH 524A-H240 OR 524A- H300 The sequence of operation is similar to the description above with the following exception: Heating When TH-1 closes, both condensing unit A and condensing unit B will start in the Heating mode. When TH-2 closes, the auxiliary heat (electric resistance) heat will be energized. 37

38 TYPICAL WIRING SCHEMATIC C Contactor, Compressor CAP Capacitor CB Circuit Breaker CH Crankcase Heater CLO Compressor Lockout COMP Compressor Motor CTD Compressor Time Delay DFT Defrost Thermostat EQUIP Equipment GND Ground HPS High-Pressure Switch IFC Indoor-Fan Contactor LLSV Liquid Line Solenoid Valve LPS Low-Pressure Switch MMR Motormaster Relay NEC National Electrical Code OFM Outdoor-Fan Motor QT Quadruple Terminal RVS Reversing Valve Solenoid TB Terminal Block TRAN Transformer Field Splice Marked Wire Terminal (Marked) Terminal (Unmarked) Terminal Block Splice Factory Wiring Field Control Wiring Field Power Wiring Accessory or Optional Wiring To Indicates Common Potential Only, Not to Represent Wiring 575C090,

39 TYPICAL WIRING SCHEMATIC (cont) EQUIP Equipment GND Ground HC Heating Contactor HTR Electric Heater IFC Indoor-Fan Contactor IFM Indoor-Fan Motor TB Terminal Block T STAT Thermostat Factory Wiring Field Control Wiring NOTE: Use copper conductors only. 524A-H 1. OPERATING LIMITS Maximumoperatingtemperature F Minimumreturn-airtemperature... 55F Maximumreturn-airtemperature... 95F Maximum outdoor-air operating temperatureinheating... 75F Minimum outdoor-air operating temperatureinheating... 20F Range of acceptable saturation suction temperature...25to55f Maximumdischargetemperature F Minimumdischargesuperheat...60 F Maximum indoor unit fan speed rpm APPLICATION DATA 2. GENERAL Select equipment to match or to be slightly less than peak load. This provides better humidity control, less unit cycling, and less part-load operation. Equipment should be selected to perform at no less than 300 cfm/ton. The indoor unit fan must always be operating when the outdoor unit is operating. Ductwork should be sized according to indoor unit size, not building load. For larger units with two fans, a split duct transition is recommended at the fan outlets, but a plenum can be used with slight reduction in external static pressure capability. For variable air volume (VAV) systems with supply-to-return air recycling, use the equipment room as a return air plenum. 39

40 3. REFRIGERANT PIPING It is recommended that the refrigerant piping for all commercial split heat pump systemsincludealiquidlinesolenoidvalve,aliquidlinefilter drier, and a sight glass. The liquid line solenoid must be installed at the outdoor unit with the direction of flow arrow pointing toward the outdoor unit (the direction of refrigerant flow in the Heating mode). All of these items must be of the bi-flow type to allow refrigerant flow in either direction. See the Refrigerant Specialties table below for the recommended part numbers. NOTE: The maximum lineal length of the refrigerant piping for commercial split heat pump systems is 100 feet. QUANTITY REQUIRED FIGURE REFERENCE 575C090,120 1 B 541A180 2 A 575C120 (2) 2 A 575C120, 541A180 2 A APPLICATION DATA (cont) L V OUTDOOR Liquid Line Vapor Line REFRIGERANT CHARGE AND PIPING SELECTION DATA* LENGTH OF PIPING (ft) Line Size (in. OD) L V L V L V MAXIMUM LIQUID LINE (in. OD) 575C072 1/ / 8 5/ / 8 5/ / 8 5/ 8 575C090 3 / / 8 1 / / 8 1 / / 8 5 / 8 575C120 1/ / 8 1/ / 8 1/ / 8 5/ 8 541A180 5 / / 8 3 / / 8 3 / / 8 3 / 4 APPROXIMATE SYSTEM CHARGE R-22 (lb)** MAXIMUM CHARGE 575C C C A *If there is a vertical separation between indoor and outdoor units, see Maximum Vertical Separation table. Approximately 4 elbows assumed in determining pipe sizes. Maximum length of interconnecting piping is 100 feet. **Approximate system charge is for estimating only. It includes charge requirements for one outdoor unit, matching indoor coil, and length of interconnecting piping shown. System should be charged in accordance with installation instructions. TXV Thermostatic Expansion Valve Filter Driers Quantity and Location (575C and 541A/524A Systems) MINIMUM OUTDOOR-AIR OPERATING TEMPERATURE* 4. E-COATED OUTDOOR COILS E-Coated Aluminum-Fin Coils haveaflexibleanddurable epoxy coating uniformly applied to all coil surfaces. Unlike brittle phenolic dip and bake coatings, E-coating provides superior protection with unmatched flexibility, edge coverage, metal adhesion, thermal performance, and most importantly, corrosion resistance. E-coated coils provide this protection since all coil surfaces are completely encapsulated from environmental contamination. This coating is especially suitable in industrial environments. COMPR CAP. (%) SATURATED CONDENSING TEMP (F) *Applies to Cooling mode of operation only. MINIMUM OUTDOOR TEMPERATURE (F) Head Pressure Std Unit Control 575B N/A 575C C A LIQUID LINE SIZE *A filter drier is shipped loose with the 575B072. Bushings required. **Factory Installed. REFRIGERANT SPECIALTIES PART NUMBERS LIQUID LINE SOLENOID VALVE (LLSV) LLSV COIL SIGHT GLASS FILTER DRIER 575B072 1 / 2 200RB GS T4 AMG/24 V AMI-1TT4 * 5 / 8 200RB GS T5 AMG/24 V AMI-1TT5 * 575C090 3 / 8 200RB GS T4 AMG/24 V AMI-1TT3 P S 1 / 2 200RB GS T4 AMG/24 V AMI-1TT4 P S 575C120 1 / 2 200RB GS T4 AMG/24 V AMI-1TT4 P S 541A180 5 / 8 ** ** AMI-1TT5 Qty 2 P S Qty 2 3 / 4 ** ** AMI-1TT5 Qty 2 P S Qty 2 40

41 *Vertical distance between indoor and outdoor units. If liquid lift exceeds 20 ft, use 5 / 8-in. liquid line. APPLICATION DATA (cont) MAXIMUM VERTICAL SEPARATION* OUTDOOR INDOOR 524A-H DISTANCE (FT) 575B C C A C120 (2) A180, 575C A-H TXV Thermostatic Expansion Valve FACTORY-INSTALLED NOZZLE AND DISTRIBUTOR DATA INDOOR S TXV Qty...Part No. DISTRIBUTOR Qty...Part No. FEEDER TUBES PER DISTRIBUTOR Qty...Size (in.) NOZZLE Qty...Part No TDBEX / C TDEX / E TDEX / C TDEBX / E TDEBX / C TDEBX / C15 STANDARD FAN MOTOR DATA INDOOR S 208/ MOTORS 524A-H 090 Speed (rpm) 1725 Hp 2.4 Frame (NEMA) 56Y Shaft Dia(in.) 5/ 8 NEMA National Electrical Manufacturers Association ALTERNATE FAN MOTOR DATA INDOOR S 208/ MOTORS 524A-H 090 Speed (rpm) 1725 Hp 2.4 Frame (NEMA) 56Y Shaft Dia(in.) 7/ 8 NEMA National Electrical Manufacturers Association 208/ AND MOTORS 524A-H Speed (rpm) Hp Frame (NEMA) 56Y 56Y 56Y S184T S213T Shaft Dia(in.) 5 / 8 5 / 8 7 / / / 8 NEMA National Electrical Manufacturers Association 208/ AND MOTORS 524A-H Speed (rpm) Hp Frame (NEMA) 56Y 56Y S184T S213T D215T Shaft Dia(in.) 7 / 8 7 / / / / 8 NEMA National Electrical Manufacturers Association MOTORS 524A-H Speed (rpm) Hp Frame (NEMA) 56HZ 56HZ 56HZ 184T S213T Shaft Dia(in.) 7 / 8 7 / 8 7 / / / 8 NEMA National Electrical Manufacturers Association MOTORS 524A-H Speed (rpm) Hp Frame (NEMA) 56HZ 56HZ 184T S213T D215T Shaft Dia(in.) 7 / 8 7 / / / / 8 NEMA National Electrical Manufacturers Association 41

42 STANDARD DRIVE DATA INDOOR S APPLICATION DATA (cont) HIGH-STATIC DRIVE DATA INDOOR S 524A-H MOTOR DRIVE Motor Pulley Pitch Diameter PulleyFactorySetting Full Turns Open FAN DRIVE Pulley Pitch Dia (in.) Pulley Bore (in.) / / / 16 Belt No. Section 1 A 1 A 1 A 2 B 2 B* Belt Pitch (in.) (2) 42.8 (2) 43.8 FAN SPEEDS (rpm) Factory Setting Range Max Allowable Speed Change per 1 / 2 Turn of Moveable Motor Pulley Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE (in.) *Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting. 524A-H MOTOR DRIVE Motor Pulley Pitch Diameter PulleyFactorySetting Full Turns Open FAN DRIVE Pulley Pitch Dia (in.) 6.0* Pulley Bore (in.) / / / 16 Belt No. Section 1 A 1 A 1 B 2 B 2 B Belt Pitch (in.) FAN SPEEDS (rpm) Factory Setting Range * Max Allowable Speed Change per 1 / 2 Turn of Moveable Motor Pulley Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE (in.) *Values for 3-phase motor shown. For unit with 208/ motor, fan pulley pitch diameter is 7.0 in. and resulting speed range is 837 to 1096 rpm. MEDIUM-STATIC DRIVE DATA INDOOR S 524A-H MOTOR DRIVE Motor Pulley Pitch Diameter PulleyFactorySetting Full Turns Open FAN DRIVE Pulley Pitch Dia (in.) Pulley Bore (in.) / / / 16 Belt No. Section 1 A 1 A 1 B 2 B 2 B* Belt Pitch (in.) (2) 38.8 (2) 39.8 FAN SPEEDS (rpm) Factory Setting Range Max Allowable Speed Change per 1 / 2 Turn of Moveable Motor Pulley Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE (in.) *Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting. 42

43 SPLIT-SYSTEM HEAT PUMP OUTDOOR HVAC GUIDE SPECIFICATIONS SECTION SIZE RANGE: 71,000 NOMINAL BTUH HEATING 6 NOMINAL TONS COOLING BRYANT MODEL NUMBER: 575B072 PART 1 GENERAL 1.01 SYSTEM DESCRIPTION A. Outdoor-mounted, electrically controlled, air-cooled split system heat pump unit utilizing a scroll-type hermetic compressor for refrigerant compression. Unit shall function as the outdoor component of an air-to-air electric heat pump system. B. Unit shall be used in a refrigerant circuit to match Packaged Air-Handling Unit, Section 15859, for matched system approved by manufacturer QUALITY ASSURANCE A. Unit performance shall be certified in accordance with ARI Standards 210/240. B. The refrigerant coil shall be designed and tested in accordance with ASHRAE 15 Safety Code for Mechanical Refrigeration. C. Unit shall be constructed in accordance with UL and UL, Canada regulations and shall carry the UL and UL, Canada labels of approval. Units shall be manufactured in a facility registered to the ISO 9001:2000 manufacturing quality standard. D. Coil leak testing shall be at 300 psig air pressure with the coil submerged in water. After testing, the coil shall be dehydrated and charged with dry air. E. Unit casing shall be capable of withstanding 500-hour salt spray exposure per ASTM B117 (scribed specimen) DELIVERY, STORAGE, AND HANDLING Unit shall be stored and handled in accordance with unit manufacturer s instructions. PART 2 PRODUCTS 2.01 EQUIPMENT A. General: Outdoor-mounted, air-cooled split system heat pump unit shall be suitable for on-the-ground or rooftop installation on a full level pad or on raised pads at each support point. The unit shall consist of a hermetic scroll compressor, a fin-tube coil, propeller-type fan, fan motor, refrigeration control devices, and a control box. All components shall be factory assembled as a single unit. A holding charge of R-22 shall be included. Units shall be used in a refrigeration circuit matched with a 524A-H packaged air-handling unit. B. Unit Cabinet: 1. Cabinet shall be constructed of galvanized steel which receives an oxide pretreatment, urethane primer and a polyester finish coating. 2. Fan venturi housings and guards shall be assembled on the unit. 3. A removable panel shall be provided for access to compressor and control compartments. 4. A refrigerant accumulator with a fusible plug relief shall be installed in the cabinet. C. Fan: 1. Propeller fan shall be directly driven by weather-proof motors. Fan motor bearings shall be permanently lubricated. 2. Fan shall be arranged for vertical discharge. GUIDE SPECIFICATIONS 575B072 D. Compressor/Motor Assembly: 1. Hermetic, scroll-type compressor shall be equipped with a crankcase oil heater. 2. Compressor assembly shall be installed on spring vibration isolators. E. Coil: Coil shall have copper tubes, acrylic coated aluminum plate fins, and galvanized steel tube sheets. The fins shall be bonded to tubes by mechanical expansion. Coil shall be circuited for subcooling in the Cooling mode. F. Refrigeration System: For refrigerant control, the unit shall include an accumulator with a fusible plug relief and a reversing valve for effective heat pump operation. The unit shall be equipped with aliquidlineandsuctionlineservicevalve.theunitsystem shall have four (4) externally accessible service ports, one on the suction service valve, one on the liquid service valve, one at the compressor suction side, and one at the compressor discharge side. Each port shall be capped for leak prevention. G. Controls and Safeties: Operating controls and safeties shall be factory selected, assembled, and tested. Minimum control functions shall be as listed below: 1. Controls: a. Time-delay restart control to prevent compressor short-cycling. b. Defrost control to consist of a time and temperature activated system that initiates defrost mode at selectable intervals of 30, 50, or 90 minutes in response to a temperature signal. 2. Safeties: a. High discharge pressure cutout switch. b. Loss-of-charge cutout switch. c. Compressor motor current and temperature overload cutouts. d. Five-minute recycle protection to prevent compressor short cycling. H. Electrical Requirements: 1. Factory supplied and installed transformer shall provide 24 v control voltage. 2. All power and control circuit wiring shall comply with local and national codes. I. Special Features: 1. Outdoor Coil Security Grille/Hail Guard: Grille shall protect condenser coil from damage by hail, flying debris or vandalism. 2. Thermostat Controls: a. Programmable multi-stage thermostat with 7-day clock, holiday scheduling, large backlit display, remote sensor capability, and Title 24 compliance. b. Commercial electronic thermostat with 7-day timeclock, auto-changeover, multi-stage capability, and large LCD temperature display. c. Non-programmable thermostat with one or 2-stage cooling. Available with or without tamperproof switches and automatic changeover. 43

44 SPLIT-SYSTEM HEAT PUMP OUTDOOR HVAC GUIDE SPECIFICATIONS SECTION SIZE RANGE: 93,000 TO 100,000 BTUH HEATING 7 1 / 2 AND 10 NOMINAL TONS COOLING BRYANT MODEL NUMBERS: 575C090 AND 120 PART 1 GENERAL 1.01 SYSTEM DESCRIPTIONS A. Outdoor-mounted, electrically controlled, air-cooled split system heat pump suitable for on-the-ground or rooftop installation. Unit shall consist of a scroll air-conditioning compressor assembly, an air-cooled coil, propeller-type condenser fans, and a control box. Unit shall discharge supply air upward as shown on contract drawings. Unit shall function as the outdoor component of an air-to-air electric heat pump system. B.UnitcanbeusedinarefrigerantcircuittomatchPackaged Air-Handling Unit(s), Section 15859, for matched systems approved by the manufacturer QUALITY ASSURANCE A. Unit shall be rated in accordance with ARI Standard 210/240. B. Unit construction shall comply with ANSI/ASHRAE 15 safety code latest revision and comply with NEC. C. Unit shall be constructed in accordance with UL 1995 standard and shall carry the UL and UL, Canada label. D. Unit cabinet shall be capable of withstanding 500-hour salt spray exposure per ASTM B117 (scribed specimen). E. Air-cooled condenser coils shall be leak tested at 150 psig and pressure tested at 428 psig. F. Unit shall be manufactured in a facility registered to ISO 9001:2000 manufacturing quality standard DELIVERY, STORAGE, AND HANDLING Unit shall be shipped as single package only, and shall be stored and handled according to unit manufacturer s recommendations WARRANTY (FOR INCLUSION BY SPECIFYING ENGINEER.) PART 2 PRODUCTS 2.01 EQUIPMENT A. General: Factory-assembled, single piece, air-cooled split system heat pump. Contained within the unit enclosure shall be all factory wiring, piping, controls, compressor, holding charge (R-22), and special features required prior to field start-up. B. Unit Cabinet: 1. Unit cabinet shall be constructed of galvanized steel, bonderized and coated with a prepainted baked enamel finish. 2. A heavy-gage roll-formed perimeter base rail with forklift slots and lifting holes shall be provided to facilitate rigging. C. Fans: 1. Condenser fans shall be direct driven, propeller-type, discharging air vertically upward. 2. Fan blades shall be balanced. 3. Condenser fan discharge openings shall be equipped with PVC coated steel wire safety guards. 4. Condenser fan and motor shaft shall be corrosion resistant. GUIDE SPECIFICATIONS 575C090,120 D. Compressor: 1. Compressor shall be of the hermetic scroll type. 2. Compressor shall be mounted on vibration isolators. 3. Compressor shall include overload protection. 4. Compressors shall be equipped with a crankcase heater. 5. Compressor shall be equipped with internal high discharge temperature protection. E. Coil: 1. Coil shall be air-cooled and circuited for subcooling during Cooling mode of operation. 2. Coil shall be constructed of aluminum fins (copper fins optional) mechanically bonded to internally grooved seamless copper tubes which are then cleaned, dehydrated, and sealed. F. Refrigeration Components: Refrigeration circuit components shall include liquid line service valve, suction line service valve, a full charge of compressor oil, and a holding charge of refrigerant. G. Controls and Safeties: 1. Minimum control functions shall include: a. Control wire terminal blocks. b. Compressor lockout on auto-reset safety until reset from thermostat. 2. Minimum safety devices which are equipped with automatic reset (after resetting first at thermostat), shall include: a. High discharge pressure cutout. b. Loss-of-charge cutout. H. Electrical Requirements: 1. Unit electrical power shall be single-point connection. 2. Unit control circuit shall contain a 24-v transformer for unit control. I. Special Features: 1. Unit-Mounted, Non-Fused Disconnect Switch: Shall be factory-installed, internally mounted. NEC and UL approved non-fused switch shall provide unit power shutoff. Shall be accessible from outside the unit and shall provide power off lockout capability. 2. Convenience Outlet: Shall be factory-installed and internally mounted with easily accessible 115-v female receptacle. Shall include 15 amp GFI receptacle with independent fuse protection. Voltage required to operate convenience outlet shall be provided by a factory-installed step-down transformer. Shall be accessible from outside the unit. 3. Low-Ambient Temperature Control: A low-ambient temperature control shall be available as a factory-installed option or as a field-installed accessory. This low-ambient control shall regulate speed of the condenser-fan motors in response to the saturated condensing temperature of the unit. The control shall maintain correct condensing pressure at outdoor temperatures down to 20 F. 44

45 4. Optional Condenser Coil Materials: a. Pre-Coated Aluminum-Fin Coils: Shall have a durable epoxy-phenolic coating to provide protection in mildly corrosive coastal environments. Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier between the aluminum fin and copper tube. Epoxy-phenolic barrier shall minimize galvanic action between dissimilar metals. b. E-Coated Aluminum-Fin Coils: Shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high gloss black with gloss requirements of 60 of 65 to 90% per ASTM D Uniform dry film thickness from 0.8 to 1.2 mil on all surface areas including fin edges. Superior hardness characteristics of 2H per ASTM D A and cross hatch adhesion of 4B-5B per ASTM D Impact resistance shall be up to 160 in./lb (ASTM D ). Humidity and water immersion resistance shall be up to a minimum of 1000 and 250 hours respectively (ASTM D and ASTM GUIDE SPECIFICATIONS 575C090,120 (cont) D870-92). Corrosion durability shall be confirmed through testing to no less than 1000 hours salt spray per ASTM B Coil construction shall be aluminum fins mechanically bonded to copper tubes. 5. Thermostat Controls: a. Programmable multi-stage thermostat with 7-day clock, holiday scheduling, large backlit display, remote sensor capability, and Title 24 compliance. b. Commercial electronic thermostat with 7-day timeclock, auto-changeover, multi-stage capability, and large LCD temperature display. c. Non-programmable thermostat with one or 2-stage cooling. Available with or without tamperproof switches and automatic changeover. 6. Hail Guard Package: Hail guard package shall protect coils against damage from hail and other flying debris. 7. Outdoor Coil Grille: Grille shall add decorative appearance to unit and protect outdoor coil after installation. 45

46 SPLIT-SYSTEM HEAT PUMP OUTDOOR HVAC GUIDE SPECIFICATIONS SECTION SIZE RANGE: 172,000 BTUH HEATING 15 NOMINAL TONS COOLING BRYANT MODEL NUMBER: 541A180 PART 1 GENERAL 1.01 SYSTEM DESCRIPTION A. Outdoor-mounted, electrically controlled, air-cooled split system heat pump unit utilizing a semi-hermetic reciprocating-type compressor for refrigerant compression. Unit shall function as the outdoor component of an air-to-air electric heat pump system. B.UnitcanbeusedinarefrigerantcircuittomatchPackaged Air-Handling Unit(s), Section 15859, for matched systems approved by manufacturer QUALITY ASSURANCE A. Unit performance shall be certified in accordance with ARI Standards 340/360. B. The refrigerant coil shall be designed and tested in accordance with ASHRAE 15 Safety Code for Mechanical Refrigeration. C. Unit shall be constructed in accordance with ETL and ETL, Canada, regulations and shall carry the ETL and ETL, Canada, labels of approval. D. Coil leak testing shall be at 350 psig air pressure with the coil submerged in water. After testing, the coil shall be dehydrated and charged with dry air. E. Unit shall be manufactured in a facility registered to the ISO 9001:2000 manufacturing quality standard. F. Unit casing shall be capable of withstanding 500-hour salt spray exposure per ASTM B117 (scribed specimen) DELIVERY, STORAGE, AND HANDLING Unit shall be stored and handled in accordance with unit manufacturer s instructions. PART 2 PRODUCTS 2.01 EQUIPMENT A. General: Outdoor-mounted, air-cooled split system heat pump unit shall be suitable for on-the-ground or rooftop installation on a full level pad or on raised pads at each support point. The unit shall consist of a semi-hermetic reciprocating refrigerant compressor/motor assembly, a fin-tube coil, propeller-type fans, fan motors, refrigerant controls, and a control box. All components shall be factory assembled as a single unit. A holding charge of R-22 shall be included. B. Unit Cabinet: 1. Cabinet shall be constructed of galvanized steel, bonderized, and finished with baked enamel. 2. Fan venturi housings and guards shall be assembled on the unit. 3. A removable panel or hinged door shall be provided for access to the compressor and control compartments. 4. A refrigerant accumulator with a fusible plug relief shall be installed in the cabinet. C. Fans: 1. Propeller fans shall be directly driven by weatherproof motors. Fan motor bearings shall be permanently lubricated. The lead fan motor shall be GUIDE SPECIFICATIONS 541A180 suitable for application with accessory head pressure control. 2. Fans shall be arranged for vertical upblast discharge. D. Compressor/Motor Assembly: 1. Semi-hermetic, reciprocating-type compressor shall be complete with a motor and oil pump all on a single polished crankshaft. 2. Motor stator winding shall be NEMA Class F rated, suitable for operation in a refrigerant atmosphere. 3. Oil pump shall be automatically reversible. 4. Casing shall include suction and discharge shutoff valves, capacity control device, oil level control orifice, oil-pressure regulating valve, and a crankcase oil heater. 5. Suction and discharge valves shall be Swedish steel, reed-type flapper valves. 6. Pistons and connecting rods shall be high-density aluminum alloy castings. Pistons shall be equipped with automotive-type compression and oil scraper rings. 7. Pump-end bearing shall be cast aluminum. Motorend bearing shall be steel-backed, tin-base babbit type. 8. Compressor assembly shall be installed on spring vibration isolators. E. Coil: Coil shall have copper tubes, aluminum plate fins (copper fins optional), and galvanized steel tube sheets. The fins shall be bonded to tubes by mechanical expansion. Coil shall be circuited for subcooling during Cooling mode operation. F. Controls and Safeties: Operating controls and safeties shall be factory selected, assembled, and tested. Minimum control functions shall be as listed below: 1. Controls: a. Capacity control valves on the compressor shall be self-contained, electrically actuated, and suction cutoff. b. Head pressure control shall be achieved by fan cycling: One fan shall be cycled in response to liquid pressure, and one fan shall be non-cycling. Both fans shall be activated in the Heating mode. c. Defrost control shall consist of a time and temperature activated system that initiates defrost periodically in response to a temperature signal. 2. Safeties: a. Low oil pressure switch cutout. b. High discharge pressure cutout. c. Loss-of-charge cutout. d. Compressor motor current and temperature overload cutouts. e. Liquid line solenoid valve. f. Filter drier in the Heating mode. g. Device to hold the compressor off-line until reset manually when any of the following listed cutouts are tripped: High discharge pressure, high temperature, and loss-of-charge. h. Compressor short-cycle protection control to prevent compressor restart after shutdown until a timed period has expired. 46

47 G. Electrical Requirements: 1. Factory supplied and installed transformer shall provide 24 v control voltage. 2. All power and control circuit wiring shall comply with local and national codes. H. Special Features: 1. Low-Ambient Temperature Control: A low-ambient temperature control shall be available as a field-installed accessory. This low-ambient control shall regulate speed of the condenser-fan motor in response to the saturated condensing temperature of the unit. The control shall maintain correct condensing pressure at outdoor temperatures down to 20 F. 2. Mounting Legs: Legs shall hold the unit approximately 18 in. off the ground to allow space for drainage. 3. Outdoor Coil Grille: Protects outdoor coil from large objects and vandalism. 4. Optional Outdoor Coil Materials: a. Pre-Coated Aluminum-Fin Coils: Shall have a durable epoxy-phenolic coating to provide protection in mildly corrosive coastal environments. Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier between the aluminum fin and copper tube. Epoxy-phenolic barrier shall minimize galvanic action between dissimilar metals. GUIDE SPECIFICATIONS 541A180 (cont) b. E-Coated Aluminum-Fin Coils: Shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high-gloss black with gloss requirements of 60 of 65 to 90% per ASTM D Uniform dry film thickness from 0.8 mil to 1.2 mil on all surface areas including fin edges. Superior hardness characteristics of 2H per ASTM D A and cross-hatch adhesion of 4B-5B, per ASTM D Impact resistance shall be up to 160 in./lb (ASTM D ). Humidity and water immersion resistance shall be up to a minimum of 1000 and 250 hours respectively (ASTM D and ASTM D870-92). Corrosion durability shall be confirmed through testing to no less than 1000 hours salt spray per ASTM B Coil construction shall be aluminum fins mechanically bonded to copper tubes. 5. Thermostat Controls: a. Programmable multi-stage thermostat with 7-day clock, holiday scheduling, large backlit display, remote sensor capability, and Title 24 compliance. b. Commercial electronic thermostat with 7-day timeclock, auto-changeover, multistage capability, and large LCD temperature display. c. Non-programmable thermostat with one or 2-stage cooling. Available with or without tamperproof switches and automatic changeover. 47

48 SPLIT-SYSTEM HEAT PUMP INDOOR (AIR-HANDLING ) HVAC GUIDE SPECIFICATIONS SECTION SIZE RANGE: 3,000 TO 10,000 CFM, NOMINAL AIRFLOW 7 1 / 2 TO TONS, NOMINAL COOLING BRYANT MODEL NUMBER: 524A-H PART 1 GENERAL 1.01 SYSTEM DESCRIPTION A. Indoor, packaged air-handling unit for use in commercial heat pump split systems. Unit shall have a multi-position design and shall be capable of horizontal or vertical installation on a floor or in a ceiling, with or without ductwork. (Only vertical units are to be applied without ductwork.) Unit shall function as the indoor component of an air-to-air electric heat pump system. B.Unitshallbeusedinarefrigerantcircuitwithamatching air-cooled condensing unit, section 15678, for matched system approved by manufacturer QUALITY ASSURANCE A. All coils shall be designed and tested in accordance with ASHRAE 15 Safety Code for Mechanical Refrigeration, latest edition. B. Unit shall be constructed in accordance with ETL and ETL, Canada, standards and shall carry the ETL and ETL, Canada, labels. C. Unit insulation and adhesive shall comply with NFPA-90A requirements for flame spread and smoke generation. Insulation shall contain an EPA-registered immobilized antimicrobial agent to effectively resist the growth of bacteria and fungi as proven by tests in accordance with ASTM standards G21 and 22. D. Unit shall be manufactured in a facility registered to the ISO 9001:2000 manufacturing quality standard. E. Direct-expansion coils shall be burst tested at 435 psi and leak tested at 150 psi DELIVERY AND STORAGE Units shall be stored and handled per manufacturer s recommendations. PART 2 PRODUCTS 2.01 EQUIPMENT Indoor-mounted, draw-thru, packaged air-handling unit that can be used with or without ductwork in a suspended horizontal configuration or free-standing vertical configuration. Unit shall be indoor component of a heat pump system. Unit shall consist of forward-curved belt-driven centrifugal fan(s), motor and drive assembly, prewired fan motor contactor, factory-installed refrigerant metering devices, bypass check valves, cooling coil, 2-in. disposable air filters, and condensate drain pans for vertical or horizontal configurations. A. Base Unit: 1. Cabinet shall be constructed of mill-galvanized steel. 2. Cabinet panels shall be fully insulated with 1 / 2-in. fire-retardant material. Insulation shall contain an EPA-registered immobilized antimicrobial agent to effectively resist the growth of bacteria and fungi as proven by tests in accordance with ASTM standards G21 and Unit shall contain corrosion-free condensate drain pans for both vertical and horizontal applications. Drain pans shall have connections on right and left sides of unit to facilitate field connection. Drain pans shall have the ability to be sloped toward the right or GUIDE SPECIFICATIONS 524A-H left side of the unit to prevent standing water from accumulating in pans. 4. Unit shall have factory-supplied 2-in. throwaway-type filters installed upstream from the cooling coil. Filter access shall be from either the right or left side of the unit. B. Coils: 1. Coils shall consist of 3 rows (524A-H090) or 4 rows (524A-H ) of copper tubes with sine-wave aluminum fins bonded to the tubes by mechanical expansion. Coil tubing shall be internally rifled to maximize heat transfer. Refrigerant line connections shall be made on the same side of the coil. 2. Coils shall feature factory-installed thermostatic expansion valves (TXVs) for refrigerant control. The TXVs shall be capable of external adjustment. 3. Coils shall have a factory-installed bypass line and check valve assembly around the TXVs to allow liquid flow from the coil to the outdoor unit during Heating mode. C. Operating Characteristics: Unit shall be capable of providing cfm airflow at an external static pressure of in wg. D. Motor: Fan motor of the size and electrical characteristics specified on the equipment schedule shall be factory supplied and installed. E. Special Features: 1. Alternate Motor and Drive: An alternate motor and medium- or high-static drive shall be available to meet the airflow and external static pressure requirements specified on the equipment schedule. 2. External Paint: Where conditions require, units shall be painted with an American Sterling Gray finish. 3. Hot Water Coil: Coil shall be 2-row, U-bend coil with copper tubes and aluminum plate fins bonded to the tubes by mechanical expansion. Coil shall be mounted in a galvanized steel housing that shall be fastened to the unit s fan deck for blow-thru heating operation. Coil shall have maximum working pressure of 150 psig. 4. Steam Distributing Coil: Coil shall consist of one row of copper tubes with aluminum plate fins, and shall have inner steam distributing tubes. Coil shall be mounted in a galvanized steel housing and shall be fastened to the unit s fan deck for blow-thru heating operation. Coil shall have maximum working pressure of 20 psig at 260 F. 5. Electric Heaters: Heaters for nominal 240, 480, or 575-volt, 3-phase, 60 Hz power supply shall be factory-supplied for field installation as shown on the equipment drawings. Electric heat assembly shall be ETL and ETL, Canada, agency approved, and shall have singlepoint power wiring. Heater assembly shall include contactors with 24-v coils, power wiring, 24-v control wiring terminal blocks, and a hinged access panel. 48

49 6. Air Discharge Plenum: Plenum shall be factory supplied to provide free-blow air distribution for vertical floor-mounted units. A grille with moveable vanes for horizontal or vertical airflow adjustment shall be included. Plenum housing shall be field-installed on the unit s fan deck for blow-thru air distribution. 7. Return Air Grille: Grille shall be factory supplied for field installation on the unit s return air opening. 8. Unit Subbase: Subbase assembly shall be factory supplied for field installation. Subbase shall elevate floor-mounted vertical units to provide access for correct condensate drain connection. 9. Economizer: Economizer for ventilation or free cooling shall be factory provided for field installation. For free cooling applications, economizer shall be compatible with factory-supplied thermostat; economizer dampers shall open when outdoor air enthalpy is suitable for free cooling. Economizer shall be compatible with factory-supplied CO 2 sensor; economizer dampers shall open when indoor CO 2 level rises above predetermined set point. Economizer shall include enthalpy control and damper actuator. 10. Thermostat Controls: a. Programmable multi-stage thermostat with 7-day clock, holiday scheduling, large backlit display, remote sensor capability, and Title 24 compliance. b. Commercial electronic thermostat with 7-day timeclock, auto-changeover, multi-stage capability, and large LCD temperature display. c. Non-programmable thermostat with fan switch subbase. 11. Overhead Suspension Package: Package shall include necessary brackets to support units in a horizontal ceiling installation. GUIDE SPECIFICATIONS 524A-H (cont) 12. CO 2 Sensor: Sensor shall provide the ability to signal the economizertoopenwhenthespaceco 2 level exceeds the predetermined set point. Sensor shall have the capability of being connected to economizer using fieldsupplied and installed Honeywell dc adapter no. Q769C Condensate Drain Trap: Trap shall have transparent, serviceable design for easy cleaning. Kit shall also include overflow shutoff switch and wiring harness for connection to alarm if desired. 14. UV-C Germicidal Lamps: a. UV-C emitters and fixtures shall be specifically designed for use inside an HVAC system. An ASME nozzled test apparatus using a 45 F (7.2 C) airstream moving at not less than 400 fpm (189 liters/sec.) shall measure individual lamp output. Lamp output at nm shall not be less than 10µW/cm 2 per inch of arc length measured at adistanceofonemeter. b. UV-C power supplies shall be high efficiency, electric type which are matched to the emitters and are capable of producing the specified output intensity with an input power no more than 80 watts. c. Emitters and fixtures shall be installed in sufficient quantity and arranged so as to provide an equal distribution of UV-C energy on the coil and drain pan. d. The minimum UV-C energy striking the leading edge of the coil fins shall be not less than 820 µw/ cm 2 at the closest point and through placement, not less than 60% of that value at the farthest point. Equal amounts are to strike the drain pan, either directly or indirectly through reflection. e. Emitters and fixtures shall be installed at right angles to the conforming lines of the coil fins, such that through incident angle reflection, UV-C energy strikes all target surfaces of the coil, drain pan, and the available line of sight airstream. 49

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52 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE MUST BE INSTALLED IN ACCORDANCE WITH INSTALLATION INSTRUCTIONS Copyright 2004 Bryant Heating & Cooling Systems Printed in U.S.A A 7/04 Catalog No