Parallel Rack Systems
|
|
- Mitchell Preston
- 7 years ago
- Views:
Transcription
1 Parallel Rack Systems Installation & Service Manual IMPORTANT Keep in store for future reference! P/N _C July 2015
2
3 P/N _C iii TABLE OF CONTENTS INSTALLATION Shipping Damage General Rack Description General Rack Components Remote Satellite Components Legend, Labels & Wiring Diagrams Setup Sheet Machine Room Requirements Handling Rack Unit Placement Minimum Allowable Distances Maximum Allowable Distances Ventilation Floor Drain Remote Condenser Placement Installing Vibration Pads Rack Sizing Charts Remote Refrigeration Charts COMPONENT PIPING & LINE SIZING Rack Piping Overview Refrigeration Line Runs Insulation Special Piping for Open Rooms Connecting Parallel 3-Way Valves Run Lengths and Equivalent Feet Rack to Condenser Piping Purge Valve Location Receiver Safery Relief Valve Connecting to Two Manifolds Equalizing Line Condenser Piping w/ Heat Reclaim Split Condenser Piping Split Condenser Piping (3-Way Valve) Rack to Heat Reclaim Rack to Remote Header Rack to Remote Satellite Discharge Lines for Two Satellites Oil Lines for Remote Satellites Offset and Expansion Loop Const Branch Line Piping Koolgas Defrost Line Sizing Charts REFRIGERATION Overview Basic Refrigeration Cycle Rack Diagram Thermostatic Expansion Valve Superheat Heat Reclaim Cycle Heat Reclaim Valve Flooding Valve and Receiver Pressure Regulating Valve Koolgas Defrost Cycle Oil System Y825 Valve Adjustment Ambient Subcooling IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards! St. Charles Rock Road Bridgeton, MO U.S. & Canada Mexico Hussmann Corporation Continued on Page iv HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
4 iv Mechanical Subcooling Two Stage Mechanical Subcooling Liquid Injection Compound Rack Compound Cooling EPR Valve CPR Valve Main Liquid Line Solenoid Valves Branch Liquid Line Solenoid Valves Way Split Condensing Valves Surge Receiver Valves Liquid Line Differential Valve Adjustment SORIT Evap Pressure Reg Adjustment Low Pressure Controls Control Settings General Description ELECTRICAL Electrical Overview Field Wiring For Remote Header Defrost Assembly For /3/60 Compressor Units Required Field Wire Size Merchandiser Electrical Data Merchandiser Field Wiring Electrical Connections Identification of Wiring Electrical Diagrams Unit Cooler Fan Wiring Cooler Door Switch Wiring Component Wiring Guidelines Sizing Wire and Overcurrent Protectors Other Controls Compressor Control Electronic Controller Time Delay Pressure Switches Switchback Control (Optional) Crankcase Heaters (Optional) Oil Failure Relay Current Relay (Optional) Defrost Controls Refrigeration Mode Defrost Mode Temperature Controls Refrigeration Thermostat (Alternate) Case Probe (Alternate) Defrost Termination Thermostat Master Defrost Valve Alarm Control Alarm System Alarm Control (Electronic) Alarm Systems Inverter Control Unit Cooler Fan Wiring Evaporator Mounted Liquid Line Solenoid Cooler Door Switch Wiring Sizing Wire and Overcurrent Protectors START-UP Leak Testing Pre-Charge Check List Charging Oil Levels Evacuation Final Checks Thermostat Settings Liquid Drier Core Replacement Suction Filter Core Replacement MAINTENANCE Compressor Replacement Winter Condensing Pressure Controls General Maintenance Drier and Filter Cores Replacement Winter Condensing Pressure Controls SERVICE Trouble Shooting Information Trouble Shooting Guides Supermarket Equipment P/N _C U.S. & Canada Mexico
5 P/N _C v REVISION HISTORY Revision C - Added Trouble Shooting Guide Revision B - Revised Vibration Pad Table, Page 1-6 ORIGINAL ISSUE February 2013 * * * * * * * * * * * * * * * * * * * * * * * * * * ANSI Z535.5 DEFINITIONS DANGER Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicate[s] a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicate[s] a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Not related to personal injury Indicates[s] situations, which if not avoided, could result in damage to equipment. HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
6
7 P/N _C 1-1 SHIPPING DAMAGE INSTALLATION All equipment should be thoroughly examined for shipping damage before and while unloading. This equipment has been carefully inspected at our factory and the carrier has assumed responsibility for safe arrival. If damaged, either apparent or concealed, claim must be made to the carrier. Hussmann parallel compressor systems are cling wrapped and taped prior to shipping via flatbed trailer. Apparent Loss or Damage If there is an obvious loss or damage, it must be noted on the freight bill or express receipt and signed by the carrier s agent, otherwise, carrier may refuse claim. The carrier will supply the necessary claim forms. GENERAL RACK DESCRIPTION The Hussmann parallel rack operates with up to ten reciprocating or screw compressors or fourteen scroll compressors in parallel design. The compact design reduces space requirements, and its open construction provides convenient access to components for easy maintenance and service. Typically, all supermarket refrigeration needs are handled by low and medium temperature racks. An average low temperature rack runs below 0 F and may have a satellite operating as low as -40 F. Common medium temperature racks operate between 0 F and 40 F. Concealed Loss or Damage When loss or damage is not apparent until after equipment is uncrated, a claim for concealed damage is made. Upon discovering damage, make request in writing to carrier for inspection within 15 days, and retain all packaging. The carrier will supply an inspection report and required claim forms. GENERAL RACK COMPONENTS Each parallel/custom rack contains the following components: As many as fourteen Copeland Scrolls, or 2-10 Copeland, or 2-10 Carlyle semi-hermetic, or 2-10 Bitzer, or 2-10 Bitzer or Carlye screw compressors with: high and low pressure controls oil pressure safety control primary overload protection compressor cooling fans on low temperature application Factory piping with: suction, discharge, liquid header defrost header (if applicable) oil separator and return system receiver suction filters on each compressor liquid filter drier and sight glass liquid level indicator liquid level switch HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
8 1-2 Installation Control Panel: The control panel contains all the necessary energy management components and motor controls factory-wired to the compressors. The interconnected compressors are cycled on and off, via low-pressure settings, by a central controller to match refrigeration capacity with load requirements. Factory-wired control panel has: pre-wired distribution power block individual component circuit breakers and contactors compressor time delays color-coded wiring system Items supplied separately for field installation: liquid dryer cores vibration isolation pads loose shipped items for accessories suction filter cores REMOTE SATELLITE COMPONENTS Although the satellite is a separate compressor, its liquid refrigerant is supplied by the rack liquid manifold. The suction gases pulled by the satellite are discharged into the rack discharge manifold. The satellite components include: One compressor with: high and low pressure controls oil pressure safety control primary overload protection compressor cooling fans on low temp Factory piping with: suction and discharge stubs oil systems with connections suction filter Factory control panel with: pre-wired distribution power block individual component circuit breakers compressor time delay relays LEGEND, LABELS & WIRING DIAGRAMS Each parallel rack is shipped with a detailed legend that identifies the specialized components used such as compressors, valves, oil separators, etc. The legend details line sizing requirements, BTUH loads, control valves, circuit information and suction temperatures. Type of refrigerant and lubricant to be used are prominently displayed on the front of the rack. All racks include complete wiring diagrams (control, primary power, board and point layout.) All wiring is color coded. SETUP SHEET All set points are to be on a setup sheet mounted inside the door of the rack s electrical cabinet. This sheet includes all set points for field-adjusted components. (i.e. suction pressure, discharge pressure, subcooler setting). P/N _C U.S. & Canada Mexico
9 P/N _C 1-3 MACHINE ROOM REQUIREMENTS Equipment must be located in a dedicated operating area to provide enough working space for service personnel and meet electrical codes. Hussmann recommends ventilation should be a minimum of 65 cfm per compressor unit horse power. The air inlet should be sized for a maximum of 500 fpm velocity. Ventilation fans should cycle by thermostatic control. Proper ventilation provides needed air flow across the compressors that helps maintain the operation of the rack. Duct work may be necessary. All ventilation equipment is field-supplied and installed. Check national and local codes for ventilation requirements before installation. HANDLING Each compressor rack has four, 2-inch holes in the frame for rigging and lifting. The image below illustrates the recommended method of setting up the rigging. It is important to use the spreader bar to prevent the rigging from damaging the rack. Before placing the rack in the machine room, remove the shipping skid. For units with vertical receivers, be aware of the level sensor on top of the receiver. Lifting cables and other equipment must not come in contact with any unit piping or electrical components. Crane Lifting Hook The equipment room floor must solidly support the compressor unit as a live load. Ground level installation seldom presents problems, but a mezzanine installation must be carefully engineered. A concrete base must be built on the mezzanine floor to keep mechanical vibrations and noise to an acceptable level. NOTE Recommended spacing is site specific. It is the installer s responsibility to check local codes and standards. 54 in.. Spreader Bar must be used Compressor Rack 6 in. Concrete Base for Mezzanine Mezzanine Floor HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
10 1-4 Installation RACK UNIT PLACEMENT Observe the minimum and maximum distances as described below for setting the rack in relation to other refrigeration equipment: Minimum Allowable Distances Water-cooled Condenser: The minimum allowable elevation is one foot from the outlet to the receiver inlet. Air Cooled Condenser: The minimum allowable distance is 4 1 /2 ft with no flooding valve from the mounting surface of the air-cooled condenser to the mounting surface of the custom rack. The minimum allowable distance is 6 feet with a flooding valve from the mounting surface of the air-cooled condenser to the center of the flooding valve. Condenser Maximum Allowable Distances Remote satellites: should not be placed below the level of the custom or parallel rack. The satellite may be positioned above the rack. The maximum allowable elevation is 6 feet from the bottom of the rack. Remote Header: The maximum allowable piping equivalent is 50 feet when piping from the rack to the remote satellite. Piping should be given special consideration when going from the rack to the remote header. Condenser: The maximum allowable piping equivalent is 100 feet when piping from the rack to the condenser. NOTE: Piping equivalent is not the same length as linear distance. Condenser Water Cooled Condenser W/ Flooding Valve 6 ft. Min. Rack Remote Satellite Remote Header 1 ft Min. Flooding Valve 6ft Max W/O Flooding Valve 4.5 ft. Min. Piping Equivalent 50ft Max Piping Equivalent 50ft Max Piping Equivalent 100ft Max P/N _C U.S. & Canada Mexico
11 P/N _C 1-5 VENTILATION Cooler climates generally need less ventilation than warmer climates. A warm machine room is going to need a good amount of ventilation. Compressors with head fans can dissipate as much as 20 percent of the heat (or input watts). Air intake should pass over the top of the units where most of the heat remains. See machine room requirements for additional information on ventilation and sizing. FLOOR DRAIN Provide a floor drain for disposal of condensate that may form on the compressor unit or header defrost assembly. REMOTE CONDENSER PLACEMENT Locate the condenser with at least three feet of clearance on all sides to provide adequate air circulation if not otherwise specified by the condenser manufacturer. If roof mounted, place on column-supported beams or loadbearing walls. The mounting surface for the condenser should be at least six feet higher than the rack flooding valve. When a flooding valve is not used, the minimum distance from the base of the rack to the mounting surface of the condenser is 4.5 ft. If a Krack Microchannel (MX) is used, sufficient room on the right side of the unit must be available to remove the micro channel slabs. At least nine feet of clearance must be available. Typical Condenser Roof Mount Arrangement Single Riser Typical Condenser Roof Mount Arrangement Double Riser Condenser Condenser Receiver Receiver Be careful when moving or lifting rack. Serious bodily injury or death could occur from falling equipment. HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
12 1-6 Installation INSTALLING VIBRATION PADS Each rack must be located in the machine room so that it is accessible from all sides. A minimum of 36 in. clearance is recommended to provide easy access to components. Vibration isolation pads are supplied with each rack. The entire weight of the rack must rest on these pads. The pads should be located and evenly spaced as shown in the image below. Cross-level the compressor unit so all compressors are level with each other. To ensure both proper leveling and vibration isolation, perform the following: 1. Lift the rack in accordance with procedures detailed on Pages Place minimum 15 gauge 3 in. by 3 in. galvanized or stainless steel shims to compensate for uneven floors. (Shims must be field supplied.) 3. Place vibration isolation pads on top of shims. See vibration pad quantities in the table at right to determine the number of pads to be used. Vibration Pad Quantities 3 in. x 3 in. x 2 in. # of compressors Reciprocating Screw per pack or Scroll Compressor 2 Compressors 4 Each 6 Each 3 Compressors 4 Each 6 Each 4 Compressors 6 Each 8 Each 5 Compressors 6 Each 8 Each 6 Compressors 6 Each 8 Each* 7 Compressors 8 Each Compressors 8 Each Compressors 8 Each Compressors 10 Each *10 for Bitzer and Vertical Receiver Vibration Pads P/N _C U.S. & Canada Mexico
13 P/N _C 1-7 # of Scroll Compressors Standard Rack Sizing Chart with Horizontal Receiver # of Reciprocating Compressors Maximum number of circuits Length of Rack (in.) Approximate Operating Weight of Rack 3 or or Standard Rack Sizing Chart with Vertical Receiver # of Scroll Compressors # of Reciprocating Compressors Maximum number of circuits Length of Rack (in.) Approximate Operating Weight of Rack 3 or or Note: Standard rack width is 39 in. Standard rack height is 78.5 in. The charts above are acceptable for most compressor models except screw compressors Dimensions may vary if optional accessories such as inverters, suction accumulators, electric defrost panels, etc. are applied HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
14 1-8 Installation Remote Refrigeration Circuit Header Planning (Floor Mount) # of Length Circuits (inches) Width (inches) Height (inches) Approx. Weight # of Circuits Remote Refrigeration Circuit Header Planning (Hanging Mount) Length (inches) Width (inches) Height (inches) Approx. Weight P/N _C U.S. & Canada Mexico
15 P/N _C 2-1 COMPONENT PIPING & LINE SIZING RACK PIPING OVERVIEW This section provides information for installing the refrigeration lines for a rack. The components are piped as completely as practical at the factory. Field piping requires only interconnection of the major components and the coolers, freezers and display cases. Piping must also be supported to minimize vibration. Pulsation of the refrigerant and compressor vibration can cause piping to vibrate. This vibration can cause line breakage and damage to components. Ceiling Run with Supports Use only clean, dehydrated, sealed refrigeration grade copper tubing. Use dry nitrogen at low pressure in the tubing during brazing to prevent the formation of copper oxide. All joints should be made with a 15 percent silver alloy brazing material. Use a 45 percent silver solder for dissimilar metals. Floor Piping Run Always use a pressure regulator when operating nitrogen tanks. REFRIGERATION LINE RUNS Liquid Lines and suction lines must be free to expand and contract independently of each other. Do not clamp or solder them together. Supports must allow tubing to expand and contract freely. Do not exceed 100 feet without a change of direction or/and offset. Plan proper pitching, expansion allowance, and waterseal at the base of all suction risers. Use long radius elbows to reduce line resistance and breakage. Avoid the use of 45 degree elbows. Install service valves at several locations for ease of maintenance and reduction of service costs. These valves must be UL approved for the minimum design working pressure of the system. Through Walls or Floors Refrigeration lines that are run through walls or floors must have a waterseal installed, and the lines must be properly insulated. Avoid running lines through the refrigeration cases. When this is done the lines must be adequately insulated using a closed-cell elastomeric foam insulation. Riser Insulation Insulation 2nd Layer Floor Insulating a Riser HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
16 2-2 Component Piping & Line Sizing From Machinery to Solid Object When mounting lines from machinery to a solid object allow line freedom for vibration to prevent metal fatigue. Waterseal Construction Waterseals must be installed at the bottom of all suction risers to return oil to the compressors to avoid trapping oil. Using Elbow Riser Clamp Here Factory Clamp 10 x Pipe Diameter Keep this distance short as possible Using Waterseal Riser Don t over support piping that is in contact with the compressor racks. The machinery must not be tightly stressed from piping that does not allow for some vibration. If piping is too tight metal fatigue will occur. Waterseal Construction Reduced Riser When a reduced riser is necessary, place the reduction coupling downstream of the waterseal. Clamp WRONG Avoid this Piping Arrangement Clamp Clamp Reduces Riser Clamp CORRECT Good for short piping runs Clamp Clamp Clamp Protecting Valves and Clamps When brazing near factory installed clamps or valves be sure to protect them with a wet rag to avoid overheating. Insulate all reduced risers. CORRECT Good for long piping runs Clamp All clamps must be properly anchored. Rubber gromets must be installed to prevent chafing of the lines. P/N _C U.S. & Canada Mexico
17 P/N _C 2-3 Elbows Only use long radius elbows. Long elbows have been shown to have less pressure drop and greater strength. It is especially important to use long radius elbows to hot gas discharge lines. Factory Supplied Stubs Stub sizes provided from the manifolds do not automatically correspond to the line sizes necessary. It is the installer s responsibility to supply reduction couplings. evaporator(s). And the installer is responsible for proper adjustment of the valve. (See CPR Valve Section for adjustment procedures.) CONNECTING PARALLEL 3-WAY VALVES Due to the size limitations of 3-way valves, some of the larger Koolgas systems will require parallel connection to 2 suction stubs at the header using an offset tee construction. Do not use a bull head tee. INSULATION All suction lines and subcooled liquid lines must be insulated. Subcooled liquid in the liquid line will warm if the lines are left unprotected, resulting in energy loss. Overtime this can lead to the liquid changing into a gas before it ever reaches the expansion valves. This is known as flashing. Flashing causes irregular flow through valves. If this occurs significant refrigerant loss and poor energy performance will occur. Compressor motors will fail if the suction line gas is too warm as it enters the compressors. For gas defrost applications, insulated suction lines help maintain temperature during defrost. Insulated lines also prevent sweating of the lines, thus eliminating drops of water on the floor below the line runs. Connection to Parallel Suction Stubs RUN LENGTHS AND EQUIVALENT FEET When figuring run lengths, angle valves and 90 degree elbows are figured as additional straight pipe. The chart below gives equivalent lengths for these. Equivalent Feet for Angle Valve and 90 Elbow Tubing Size Angle Valve Long Radius Elbow 90% 1/ / SPECIAL PIPING FOR OPEN ROOMS An open food preparation room allows heat infiltration from the rest of the store at a rate which may jeopardize total refrigeration performance. To protect the rest of the refrigeration system, open preparation evaporators must be piped with a crankcase pressure regulating valve (CPR). The CPR is field installed in the suction line(s) from the 7/ / / / / / / / / HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
18 2-4 Component Piping & Line Sizing RACK TO CONDENSER PIPING Discharge line will be routed directly to the condenser inlet stub with a purge valve at the highest point. Liquid return line will be pitched downstream, and purge valve location will provide trapless drainage to the rack. PURGE VALVE LOCATION The purge valve will be installed at the highest point of an inverted waterseal, with at least a 6 in. rise. (Use with approved recovery vessel.) RECEIVER SAFETY RELIEF VALVE The receiver safety relief valve must be properly vented in accordance with local codes. NOTE: Liquid return lines must be free draining with no traps. Install solenoid valves inside equipment room. All interconnecting valving to be field supplied and installed. Condenser Discharge Supply 6 in. Min Rise 6 Ft Min Drop before tee to main liquid line Liquid Return To Heat Reclaim From Heat Reclaim Field Piping Factory Piping Rack to Condenser Piping P/N _C U.S. & Canada Mexico
19 P/N _C 2-5 CONNECTING TO TWO MANIFOLDS The discharge line will be tee d upstream of the manifolds into expansion offsets with at least a one foot drop to the manifolds. Provide a purge valve at the highest point. The liquid return lines will be tee d into the main liquid return line after six feet of vertical drop from the outlet stubs. The liquid return line will be pitched downstream, and provide trapless drainage to the rack. EQUALIZING LINE An equalizer line is piped between the parallel rack and the condenser. A check valve allowing flow only to the condenser and a shut off valve downstream of the check valve will be field supplied and installed. Discharge Supply Condenser 6 in. Min Rise Liquid Return Liquid Return To Heat Reclaim From Heat Reclaim Field Piping 6 Ft Min Drop before tee to main liquid line Factory Piping 3-Way Valve Method 2-Way Valve Method Rack to Condenser Piping Split Condenser HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
20 2-6 Component Piping & Line Sizing Condenser Piping w/ Heat Reclaim 1 1" Min Drop After Tee Tee from from Main Main Discharge Line Line Condenser 6 6" Min Rise 6 Ft Min Drop Before Tee Tee to to Main Liquid Liquid Line Line Return Return From Heat Reclaim To Heat Reclaim All Piping and Valves above this line line are are field field supplied and and installed installed Flooding Valve HS Oil Oil Separator Separator Discharge Lines Liquid Return Lines Equalizing Line Line Ball Valve Check Valve Valve Service Valve Service Valve Condenser Manifold Valve Solenoid HS = Heat Reclaim Purge Valve Note: Liquid Return Lines must be free draining with no no Traps Install Ball valves to isolate Condenser (Field Supplied and and Installed) All Interconnecting Inter-connecting Valving to to be be Field Field Supplied and and Installed INST & SER - 10 P/N _C U.S. & Canada Mexico
21 P/N _C 2-7 Split Condenser Piping 2 Solenoid Valve Methor w/heat Reclaim 6 Min Rise 1 Min Drop Condenser All Piping and Valves above this line are field supplied and installed From Heat Reclaim To Heat Reclaim Liquid Return Bleed Line w/ Boil off Loops 6 Ft Min Drop Before Tee to Main Liquid Line Return Suction Manifold Turba- Shed Flooding Valve Discharge Lines Liquid Return Lines Equalizing Line 1/4 Tubing Note: Ball Valve Check Valve Service Valve Purge Valve Condenser Manifold Valve Solenoid HS = Heat Reclaim PD = Pump Down SS = Split Condenser Liquid Return Lines must be free draining with out Traps Install Solenoid valves to isolate Equipment Room Pump down Line should not enter the Suction Manifold over a Compressor Inlet Install Ball Valves to isolate condenser All Interconnecting Valving to be Field Supplied and Installed HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
22 2-8 Component Piping & Line Sizing Split Condenser Piping 3-Way Valve Method w/heat Reclaim 6 Min Rise 1 Min Drop Condenser All Piping and Valves above this line are field supplied and installed From Heat Reclaim To Heat Reclaim Liquid Return Bleed Line w/ Boil off Loops 6 Ft Min Drop Before Tee to Main Liquid Line Return Turba- Shed Suction Manifold Flooding Valve Discharge Lines Liquid Return Lines Equalizing Line 1/4 Tubing Note: Ball Valve Check Valve Service Valve Purge Valve Condenser Manifold Valve Solenoid HS = Heat Reclaim PD = Pump Down SS = Split Condenser Liquid Return Lines must be free draining with no Traps Install Solenoid valves to isolate Equipment Room Pump down Line should not enter the Suction Manifold over a Compressor Inlet Install Ball Valves to isolate condenser All Interconnecting Valving to be Field Supplied and Installed P/N _C U.S. & Canada Mexico
23 P/N _C 2-9 RACK TO HEAT RECLAIM Because of the variety of heat reclaim systems, refer to the instructions accompanying the system to be installed at the site. RACK TO REMOTE HEADER Separates compressors from defrost and temperature controls. The rack suction stub is connected as directly as possible to the suction header. The rack liquid line stub is connected as directly as possible to the liquid header. If equipped with Koolgas defrost the rack Koolgas stub is connected as directly as possible to the Koolgas header manifold. Note: The remote header may use a double suction riser to aid in oil return. RACK TO REMOTE SATELLITE The compressor discharge line may be piped through a vibration absorber to its stub on the discharge header. The compressor suction line will be piped one of two ways depending on whether a low-end or high-end satellite is used. A low-end satellite suction line is piped to its check valve on the suction header, and from there to the evaporator. (If Koolgas defrost is used pipe through the proper Koolgas valve.) A high-end satellite is piped directly to the evaporator. Discharge Lines for Two Satellites Installations having two Satellites are tee d together upstream of the discharge manifold. Use an offset tee construction. Do not use a bullhead tee. Oil Lines for Remote Satellites All oil lines are run in 3/8 copper. Lines will be installed securely and run under tapered cover plates when crossing walkways. Offset Tee Construction Oil Separator Satellite Piping HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
24 2-10 Component Piping & Line Sizing OFFSET AND EXPANSION LOOP CONSTRUCTION For low temperature applications multiply the length of the run in feet by For medium temperature application multiply the length of the run in feet by The product will be inches of linear expansion for the length of run. Example: The smallest Inches Expansion equal to or greater than is 1.5. The 1.5 column intersects with the 1 3/8 line at 21. Use L value 21. For an offset multiply the L value by 3 to determine the length of the offset. Example: An L value of 21 would mean 3L = 3 X 21 or 3L = 63. Examples: Low temperature application, a run of 84 ft of 1 3 /8 in. OD. 84 ft x.0169 = inches expansion. Select the smallest Inches Expansion figure equal to or greater than the product in step one from the table below. Follow that column down until it intersects the OD line size of the run. The number listed at the intersection is the L valve for figuring offset an expansion loop sizes. Equivalent Feet for Angle Valve and 90 Elbow Inches Expansion OD Line Size Offset Construction The offset distance required for low temperature application for an 84 ft run of 1 3 /8 line is 63 inches. For an expansion loop multiply the L value by 2 if hard copper and long radius elbows are used. If the expansion loop is formed in soft copper the loop diameter equals L. Example: For the same 84 ft run, a hard copper loop is 42 by 42 inches. A soft copper loop is 21 by 21 inches / / / / / / / /8 Expansion Loop Piping P/N _C U.S. & Canada Mexico
25 P/N _C /8 in. Header 1/2 in. lines to case Point tees down Application Do not exceed a straight run for 100 feet without constructing an offset or expansion loop. Place the offset or loop in the middle of the run to minimize pipe shift and joint stress. Suction Line Return NOTE: Sizing of all refrigerant lines is the responsibility of the installing contractor. Contact Hussmann, Application Engineering if assistance is needed. BRANCH LINE PIPING Suction line Pitch in the direction of flow. Line size may be reduced by one size at one third of case run load and again after the second third. Do not reduce below evaporator connection size. Suction returns from evaporators enter at the top of the branch line. 3-In. Loop (76 mm) Liquid Line Take Off Liquid Line - Off-time and Electric Defrost May be reduced by one size after one half other case load run. Do not reduce below evaporator connection size. Take-offs to evaporators exit the bottom of the liquid line. Provide an expansion loop for each evaporator take-off. (Minimum 3-inch diameter.) HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
26 2-12 Component Piping & Line Sizing KOOLGAS DEFROST Maximum of 24 ft of case per branch system, except for island / coffin cases never more than 24 ft. Increase the liquid line size inside the case by two sizes over the branch size. Take-offs to evaporators exit the bottom of the liquid line. Provide an expansion loop for each evaporator take-off. (Minimum 3 in.) Branch Size In Case Size 1 /2 7 /8 5 /8 1 1 /8 7 /8 1 3 /8 1 1 /8 1 5 /8 1 3 /8 2 1 /8 Koolgas Defrost Liquid Line Two Sizes Larger in Merchandiser From Liquid Manifold Electric of Offtime Defrost Liquid Line To Suction Manifold P/N _C U.S. & Canada Mexico
27 P/N _C 2-13 Refrigeration Line Stub Outs Stub sizes do not match line sizes. Reduction fittings are field-supplied and installed. These are general guidelines. The installer is responsible to account for any factors which may affect the system. Condenser Line Sizing A Condenser Line Sizing chart is established for an equivalent pipe run of 100 feet. For longer runs, use the following formula: *Table Capacity x 100 Longer Length = Longer Line Capacity. Directions and Notes Select the MBH Value which is equal to or greater than the MBH the line will be required to carry. Read the Line Size following the MBH. MBH: values listed are always the maximum. Vertical Riser: When the required refrigeration capacity is less than the figure listed in the Vertical Riser MBH column as shown on Pages 2-17 and 2-19, the riser should be the next size smaller. When equal to or greater than the figure listed, the riser should be the same size as the main tubing run. *Note: This formula applies only to remote condenser lines, and only to longer runs of these lines. A 25 ft run does not necessarily have double the capacity of a 100 ft run. Gas Defrost Systems Do not use liquid lines smaller than 1 2 inch OD on any type of Gas Defrost system. IMPORTANT NOTES The Hussmann Line Sizing Charts are engineered for use with Hussmann Refrigeration Equipment. Use of these charts will in no way place responsibility on Hussmann when other than Hussmann Refrigeration Equipment is installed. Line Sizing for other than Hussmann Refrigeration equipment must be provided by that manufacturer. When other than Hussmann engineered refrigeration equipment is applied, select Case BTUH/Ft ratings from the Conventional values listed in the Merchandiser Data book. HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
28 2-14 Component Piping & Line Sizing R-404A and R-507A Medium Temperature Condenser Line Sizing Condensing Temperature F Discharge Maximum Allowable MBH Remote Header Line Sizing Maximum Maximum Allowable Liquid Allowable Suction MBH Main MBH Main Line Size Liquid Return Maximum Allowable MBH Line Size Liquid Supply Line Sizing Cond Maximum MBH of Refrigeration Tubing Temp per Length of Equivalent Feet Size F OD P/N _C U.S. & Canada Mexico
29 P/N _C 2-15 Suction Line Sizing Evap Maximum MBH of Refrigeration Tubing Vertical Temp per Length of Equivalent Feet Size Riser F 110 F Condenser OD MBH HUSSMANN CORPORATION BRIDGETON, MO U.S.A. R-404A and R-507A Medium Temperature Suction Line Sizing Table is established for design Conditions of 110 F Condensing Temperature. For other Condensing Temperatures use the multiplying factors listed below to determine the maximum MBH capacity of the tubing. Condensing Temp Multiplying Factor Parallel Rack
30 2-16 Component Piping & Line Sizing R-404A and R-507A Low Temperature Condenser Line Sizing Condensing Temperature F Discharge Maximum Allowable MBH Remote Header Line Sizing Maximum Maximum Allowable Liquid Allowable Suction MBH Main MBH Main Line Size Liquid Return Maximum Allowable MBH Line Size Liquid Supply Line Sizing Cond Maximum MBH of Refrigeration Tubing Temp per Length of Equivalent Feet Size F OD P/N _C U.S. & Canada Mexico
31 P/N _C 2-17 Suction Line Sizing Evap Maximum MBH of Refrigeration Tubing Vertical Temp per Length of Equivalent Feet Size Riser F 105 F Condenser OD MBH R-404A and R-507A Low Temperature Suction Line Sizing Table is established for design Conditions of 105 F Condensing Temperature. For other Condensing Temperatures use the multiplying factors listed below to determine the maximum MBH capacity of the tubing. Condensing Temp Multiplying Factor HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
32 2-18 Component Piping & Line Sizing R-134a Medium Temperature Condenser Line Sizing Condensing Temperature F Discharge Maximum Allowable MBH Line Size Liquid Return Maximum Allowable MBH Line Size Liquid Supply Line Sizing Cond Maximum MBH of Refrigeration Tubing Temp per Length of Equivalent Feet Size F OD P/N _C U.S. & Canada Mexico
33 P/N _C 2-19 Suction Line Sizing Evap Maximum MBH of Refrigeration Tubing Vertical Temp per Length of Equivalent Feet Size Riser F 110 F Condenser OD MBH R-134a Medium Temperature Suction Line Sizing Table is established for design Conditions of 110 F Condensing Temperature. For other Condensing Temperatures use the multiplying factors listed below to determine the maximum MBH capacity of the tubing. Condensing Temp Multiplying Factor HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
34 2-20 Component Piping & Line Sizing NOTES: P/N _C U.S. & Canada Mexico
35 P/N _C 3-1 REFRIGERATION OVERVIEW This section details the refrigeration process by tracking the refrigerant flow through the rack components. Oil separation and return is explained as well. The flooding valve maintains head pressure in low ambient conditions by restricting liquid refrigerant flow from the condenser. The rack is designed with an adequately-sized receiver for proper refrigerant management. The compact design reduces height and width requirements as well as providing convenient access to components for easy maintenance and service. In the diagrams refrigerant flow direction is generally clockwise and indicated by directional arrows. Electrical solenoid valves carry the same initial abbreviations as in the electrical schematics. Refrigeration lines not actually in the cycle being discussed are shown closed or removed. Pressure oil lines will retain a fixed pattern. BASIC REFRIGERATION CYCLE Beginning with the parallel compressors, refrigerant vapor is compressed and flows to the oil separator and returned to the compressors. A 3-way valve directs the superheated discharge gas to either the condenser or a heat reclaim device when energized. When the reclaim solenoid is de-energized the valve directs the refrigerant to the condenser. The condenser rejects the heat that must be removed from the refrigerant to cause it to condense. Flooding Valve This causes liquid refrigerant flow to be backed up in the condenser, thus reducing available heat transfer surface and causing the discharge pressure to rise. The receiver is a holding vessel for liquid refrigerant. The receiver compensates for fluctuations in liquid requirements during changing loads, defrosts and weather. The main liquid pressure differential valve functions during gas defrost to reduce pressure to the liquid header. The reduced pressure allows reverse flow of refrigerant gas through the evaporator necessary for an effective defrost. The liquid header distributes liquid refrigerant to all branch liquid lines. The branch liquid line solenoid valve closes off refrigerant supply to the evaporator. The valve also allows back flow of refrigerant into the liquid header. Oil Separator It is the installing contractor s responsibility to consult local agencies for local code requirements. HUSSMANN CORPORATION BRIDGETON, MO U.S.A. Parallel Rack
HUSSMAN Limited Warranty. This warranty is made to the original user at the original installation site and is not transferable.
HUSSMAN Limited Warranty This warranty is made to the original user at the original installation site and is not transferable. Hussmann merchandisers are warranted to be free from defect in material and
More informationHeating, Ventilation, Air Conditioning and Refrigeration (HVACR)
Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) I. Demonstrate safety skills in typical HVACR work situations to NATE Core Installer Knowledge Areas for Technician Excellence for Safety
More informationWhy and How we Use Capacity Control
Why and How we Use Capacity Control On refrigeration and air conditioning applications where the load may vary over a wide range, due to lighting, occupancy, product loading, ambient weather variations,
More informationPOLICY BULLETIN Tecumseh Compressor Company Compressor Group
to Bulk Milk Coolers and Other System Page 1 of 5 Overall reliability can be enhanced if there exists a complete understanding of the features, system design, installation requirements, processing, charging
More informationSECTION 15750 PACKAGED ROOFTOP AIR CONDITIONING UNITS
SECTION 15750 PART 1 - GENERAL 1.01 DESCRIPTION A. Section includes requirements for roof mounted, self-contained units, with electric cooling, and electric or reverse refrigeration cycle (heat pump) heating
More informationSECTION 11 78 13 MORTUARY REFRIGERATORS
PART 1 - GENERAL 1.1 DESCRIPTION SECTION 11 78 13 MORTUARY REFRIGERATORS SPEC WRITER NOTE: Delete between //---// if not applicable to project. Also delete any other item or paragraph not applicable in
More informationARCO Electric Products Installation and Maintenance Manual Low Voltage Automatic Power Factor Correction Capacitor Systems 2013
ARCO Electric Products Installation and Maintenance Manual Low Voltage Automatic Power Factor Correction Capacitor Systems 2013 READ CAREFULLY These instructions are intended to cover good practices in
More informationINSTALLATION INSTRUCTIONS Fan Coil Replacement Coil Kit EBX & EBXX
Fan Coil Replacement Coil Kit EBX & EBXX These instructions must be read and understood completely before attempting installation. These instructions covers the installation of replacement coil kit into
More informationMAC-120HE-01 Air-Cooled Chiller
MAC-120HE-01 Air-Cooled Chiller 10 Ton / 120,000 BTUH Air-Cooled Chiller 208/230-1-50/60 1 HVAC Guide Specifications Air-Cooled Liquid Chiller Nominal Size: 10 Tons Multiaqua Model Number: MAC-120HE-01
More informationSECTION 23 81 03 - PACKAGED ROOFTOP AIR CONDITIONING UNITS NON-CUSTOM
SECTION 23 81 03 - PACKAGED ROOFTOP AIR CONDITIONING UNITS NON-CUSTOM PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Packaged rooftop air conditioning unit (5 tons and smaller). 2. Roof curb. 1.2
More informationOil and Coolant Circulating Heating System. Model - OCSM
Oil and Coolant Circulating Heating System Model - OCSM Installation & Operation Manual 216280-000 REV 2 Identifying Your System The HOTSTART heating system is designed to heat fluids for use in marine
More informationCold Room & Refrigeration System (Casserole Assembly) No of units: 1
Technical Specifications Cold Room & Refrigeration System (Casserole Assembly) No of units: 1 For chiller storage of all sorts of items Chiller storage temperature: 2-5 C Provides excellent thermal efficiency
More informationPRE-ASSEMBLED REMOTE REFRIGERATION SYSTEMS
NOR-LAKE, INCORPORATED 727 Second Street P.O. Box 248 Hudson, Wisconsin 54016 800-955-5253 715-386-2323 866-961-5253 Parts 800-388-5253 Service 715-386-4291 FAX www.norlake.com Split-Pak Pre-Assembled
More informationTable V. Troubleshooting Checklist for Refrigeration Systems. Air or non-condensable gas in system. Inlet water warm.
Table V Troubleshooting Checklist for Refrigeration Systems TROUBLE POSSIBLE CAUSE CORRECTIVE MEASURE High condensing pressure. Low condensing pressure. Air or non-condensable gas in system. Inlet water
More informationREMOTE AIR-COOLED CONDENSERS. Installation and Maintenance Data. Models 1-26. Bulletin H-IM-73A June 2000 Part Number 90800801.
Bulletin H-IM-73A June 2000 Part Number 90800801 Replaces H-IM-73 and H-IM-74 REMOTE AIR-COOLED CONDENSERS Models 1-26 Installation and Maintenance Data Table of Contents Inspection Installation... 3-4
More informationRefrigeration Installation 101
Refrigeration Installation 101 Hundreds of Installations Refrigerated Cases 2 Compressor Racks 3 Condensing Units 4 Walk-in Boxes 5 Some were done very well 6 Some had some issues... 7 8 Some seemingly
More informationSECTION 23 00 01 HEATING, VENTILATION AND AIR CONDITIONING EQUIPMENT
SECTION 23 00 01 HEATING, VENTILATION AND AIR CONDITIONING EQUIPMENT PART 1 - GENERAL 1.1 DESCRIPTION A. The Work specified in this Section consists of designing, furnishing and installing factory-assembled
More informationPIPES AND TUBES FOR HVAC PIPING AND EQUIPMENT
PIPES AND TUBES FOR HVAC PIPING AND EQUIPMENT GENERAL INFORMATION 1.1 This section applies to piping systems for chilled water, hot water, condenser water, steam, condensate return, fuel oil, refrigerant
More informationRefrigerant Changeover Guidelines R-22 to R-407C. Leading the Industry with Environmentally Responsible Refrigerant Solutions
Refrigerant Changeover Guidelines R-22 to R-407C Leading the Industry with Environmentally Responsible Refrigerant Solutions Emerson Climate CFC Technologies, Inc. does not advocate the HCFC wholesale
More informationAE21-1319 R6 December 2013. Digital Capacity Control for Copeland Scroll Refrigeration Compressors AE21-1319 R6
AE21-1319 R6 December 2013 Digital Capacity Control for Copeland Scroll Refrigeration Compressors TABLE OF CONTENTS Section Page Section Page Safety Safety Instructions...2 Safety Icon Explanation...2
More informationECOCIAT. Domestic hot water heat recovery unit
Heat recovery unit Domestic hot water High energy efficiency with R410A Compact and quiet Scroll compressors Brazed-plate heat exchangers Heating Heat recovery ENVIRONMENTALLY HFC R410A PROTECTION DE FRIENDLY
More informationGeothermal Alliance of Illinois. TXVs Theory and Fundamentals John Haug Senior Application Engineer Emerson Climate Technologies - Flow Controls
Geothermal Alliance of Illinois TXVs Theory and Fundamentals John Haug Senior Application Engineer Emerson Climate Technologies - Flow Controls Thermal Expansion Valve Topics Anatomy Operation Terms &
More informationEngineering Recommendation on: Accumulators Revised 6-17-99 Issued January 10, 1979 Page 1 of 7
Issued January 10, 1979 Page 1 of 7 Accumulators have long been recognized by the industry as an effective means of maintaining good system balance by storing excess refrigerant as the condenser or evaporator
More informationTest Code: 8297 / Version 1
Blueprint HVAC Maintenance Technology PA Test Code: 8297 / Version 1 Copyright 2014. All Rights Reserved. General Assessment Information HVAC Maintenance Technology PA Blueprint Contents General Assessment
More informationRefrigeration System Installation & Operation Manual
Refrigeration System Installation & Operation Manual Manitowoc Foodservice Walk-In Division 2915 Tennessee Avenue North P.O. Box 550 Parsons, TN 38363 Phone: 800-225-9916 www.manitowocfsusa.com 550001058-3
More informationMOBILE FIRE - RESCUE DEPARTMENT FIRE CODE ADMINISTRATION
MOBILE FIRE - RESCUE DEPARTMENT FIRE CODE ADMINISTRATION Fire Pump Plan Review 2009 International Fire Code and NFPA 20 Date of Review / / BLD201 - Project Address: Project Name: Contractor s Business
More informationSteam Coil Installation, Operation and Maintenance
Steam Coil Installation, Operation and Maintenance Guidelines for the installation, operation and maintenance of the Heatcraft brand of steam heating coils manufactured by Luvata in Grenada, MS have been
More informationA/C refrigerant system, overview
Page 1 of 19 87-18 A/C refrigerant system, overview A/C refrigerant system, identification Typical A/C refrigerant system with expansion valve and receiver drier 1 - Evaporator 2 - Expansion valve 3 -
More informationHS-901(A) BASIC STEAM HEATING SYSTEMS
HS-901(A) BASIC HEATING SYSTEMS One-Pipe Two-Pipe Basic Steam Heating Systems One-pipe steam heating system EQUALIZER SAFETY FACTOR STATIC HEAD PRESSURE DROP 2" HEATING UNIT 15" DRIP CONNECTION In a one-pipe,
More informationCharacteristics of Evaporators
Characteristics of Evaporators Roger D. Holder, CM, MSME 10-28-2003 Heat or Energy In this paper, we will discuss the characteristics of an evaporator coil. The variance of the operational condenses of
More informationFire Pump Plan Review March 2010
Fire Pump Plan Review March 2010 Date of Review: / / Permit Number: Business/Building Name: Address of Project: Designer Name: Designer s Phone: Contractor: Contractor s Phone: Occupancy Classification:
More informationDESIGN STANDARDS SECTION 23 60 00
PART 1 - GENERAL 1.01 Work included: A. Piping, tubing and fittings. B. Piping specialties. C. Special duty valves. D. Refrigerants. E. Chillers. F. Refrigerant monitors. 1.02 General requirements: A.
More informationRefrigerant Changeover Guidelines R-22 to R-407C. Leading the Industry with Environmentally Responsible Refrigerant Solutions
Refrigerant Changeover Guidelines R-22 to R-407C Leading the Industry with Environmentally Responsible Refrigerant Solutions Copeland does not CFC advocate the wholesale changeover of HCFC HCFC refrigerants
More informationLow Profile Unit Cooler
Super-Flo Now available with EC Motors High Efficiency / High Reliability Low Profile Unit Cooler Publication No. 411.4 November, 2008 S A N I T A T I O N F O U N D A T I O N A L N A T I O N Air Defrost
More informationUA-NJ Air Conditioning & Refrigeration Division Training Curriculum
UA-NJ Air Conditioning & Refrigeration Division Training Curriculum 1st Year Basic Mathematics for HVAC Using formulas as an expression of logical sequence in solving problems. Measuring using a ruler
More informationSWIMMING POOL HEAT PUMP
SWIMMING POOL HEAT PUMP Installation & User Manual Model HP40B HP50B HP65B Hayward Pool Products Canada, Inc. T: 1-888-238-7665 www.haywardpool.ca CONTENT I. Application 4 II. Features 4 III. Technical
More informationTRAINING, EXAMINATION AND CERTIFICATION
TECHNICAL STANDARDS & SAFETY AUTHORITY TRAINING, EXAMINATION AND CERTIFICATION REFRIGERATION OPERATOR CLASS B CERTIFICATION & EXAMINATION GUIDE REVISED EDITION 2 CERTIFICATIONS PERSUANT TO THE OPERATING
More informationNational Competency Based Skill Training Refrigeration and Air-conditioning Mechanic Logbook
National Competency Based Skill Training Refrigeration and Air-conditioning Mechanic Logbook Trainee:... Training Provider:... Year:... Trainee Contact no:... Competency Based Skill Training Logbook Introduction
More informationElement D Services Plumbing
Medical Vacuum and Gas PART 1 - GENERAL 1.01 OVERVIEW A. This section addresses medical vacuum, waste anesthetic gas disposal, compressed air, oxygen, nitrous oxide, nitrogen and carbon dioxide systems.
More informationTECHNICAL DATA & SERVICE MANUAL SPLIT SYSTEM AIR CONDITIONER INDOOR UNIT: AW52AL AW64AL AW52AL 387030095 AW64AL 0.8180.463.0 07/05
TECHNICAL DATA & SERVICE MANUAL INDOOR UNIT: AW52AL AW64AL SPLIT SYSTEM AIR CONDITIONER Model No. Product Code No. AW52AL 387030095 AW64AL 387030096 0.8180.463.0 07/05 IMPORTANT! Please read before installation
More informationCooling system components, removing and installing
Engine BHW Cooling system components, removing and installing Page 1 / 24 19-1 Cooling system components, removing and installing Warning! When doing any repair work, especially in the engine compartment,
More informationTroubleshooting HVAC/R systems using refrigerant superheat and subcooling
Troubleshooting HVAC/R systems using refrigerant superheat and subcooling Application Note Troubleshooting and servicing refrigeration and air conditioning systems can be a challenging process for both
More informationREFRIGERATED TYPE COMPRESSED AIR DRYERS INSTRUCTION MANUAL. For Sales & Service please contact:
7610.478.16 8/99 INSTRUCTION MANUAL Models 8005, 8010, 8015 For Sales & Service please contact: CENTRAIR Air Systems & Supplies Phone: 705-722-5747 Fax: 705-722-5458 Email: sales@centrair.ca Website: www.centrair.ca
More informationBUILT-IN DISHWASHER INSTALLATION INSTRUCTIONS
BUILT-IN DISHWASHER INSTALLATION INSTRUCTIONS PLEASE READ COMPLETE INSTRUCTIONS BEFORE YOU BEGIN LEAVE INSTALLATION INSTRUCTIONS AND USER'S GUIDE WITH OWNER ALL ELECTRIC WIRING AND PLUMBING MUST BE DONE
More informationWON0502-B INSTALLATION INSTRUCTIONS FOR ELECTRIC FURNACES. Bulletin 30-34 / March 2013
Bulletin 30-34 / March 2013 INSTALLATION INSTRUCTIONS FOR ELECTRIC FURNACES General The information on the following pages is to provide the installer the necessary information to properly install the
More informationCondensing unit type EPSILON-ECHOS LE Technical information manual
Condensing unit type EPSILON-ECHOS LE Technical information manual 2 > EPSILON ECHOS Water chiller > EPSILON ECHOS /HP Reversible heat pump > EPSILON ECHOS /ST Water chiller with storage tank and pumps
More informationSkills Canada National Competition Instructions and Competition Details 38 Refrigeration and Air Conditioning / Post - Secondary May 27-30, 2015 -
Skills Canada National Competition Instructions and Competition Details / Post - Secondary May 27-30, 2015 - Saskatoon 1. Test Project Details This project is designed to test the range of skills used
More informationM SERIES REFRIGERANT COIL MODULE REFRIGERANT COILS for R-22, R-407C, R-410A
Bulletin 20-20.2 / July 2012 M SERIES REFRIGERANT COIL MODULE REFRIGERANT COILS for R-22, R-407C, R-410A ➀ ➁ ➂ Model Number Key M 2430 C L 1 - A - ➀ Unit Type M=Modular Nominal Capacity 2430=24000 to 30000
More informationSECTION 5 COMMERCIAL REFRIGERATION UNIT 22 CONDENSERS
SECTION 5 COMMERCIAL REFRIGERATION UNIT 22 CONDENSERS UNIT OBJECTIVES After studying this unit, the reader should be able to explain the purpose of the condenser in a refrigeration system. describe differences
More informationLH and GH/GL Series UNIT COOLERS. Technical Bulletin: LHGH_001_071015. Products that provide lasting solutions.
LH and GH/GL Series UNIT COOLERS Technical Bulletin: LHGH_001_07101 Products that provide lasting solutions. LH Series Unit Coolers Dual Discharge Low Hite Series At 9 1/ maximum height, the LH Series
More informationRefrigerant Changeover Guidelines HCFC R-22 to HFC R-404A/R-507. Leading the Industry with Environmentally Responsible Refrigerant Solutions
Refrigerant Changeover Guidelines HCFC R-22 to HFC R-404A/R-507 Leading the Industry with Environmentally Responsible Refrigerant Solutions Copeland does not advocate the wholesale changeover of HCFCs
More informationAir Conditioner Water Heater Model ACWH18
Air Conditioner Water Heater Model ACWH18 Installation Guide IMPORTANT! READ THIS FIRST! Commissioning of this unit must be done by a licensed HVAC technician. Commissioning includes making the electrical
More informationNordic Heat Pump Product Guide
Nordic Heat Pump Product Guide About Maritime Geothermal Maritime Geothermal is a privately owned, Canadian based manufacturer of geothermal heat pumps. We began manufacturing the Nordic line of heat pumps
More informationHEAT PUMP FREQUENTLY ASKED QUESTIONS HEAT PUMP OUTDOOR UNIT ICED-UP DURING COLD WEATHER:
HEAT PUMP FREQUENTLY ASKED QUESTIONS HEAT PUMP OUTDOOR UNIT ICED-UP DURING COLD WEATHER: It is normal for a heat pump to have a build up of white frost on the outside coil during cold damp weather. The
More informationVITOSOL r 200-T SP2A. VITOSOL 200-T Type SP2A
Technical Data Manual Model Nos. and pricing: see Price List Vacuum tube collector based on the heat pipe principle For the utilisation of solar energy VITOSOL r 200-T SP2A Product may not be exactly as
More informationD Youville College July 31, 2008 New Academic Building Cannon Design Project No. 002935.00
SECTION 22 6119 - COMPRESSED-AIR EQUIPMENT FOR LABORATORY AND HEALTHCARE PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Packaged, oilless scroll air compressors. 1.2 DEFINITIONS A. Actual Air: Air
More informationSubpart 1. Installation. All plumbing systems must be. installed and tested according to this chapter and chapter 4715,
4658.4500 PLUMBING SYSTEMS; NEW CONSTRUCTION. Subpart 1. Installation. All plumbing systems must be installed and tested according to this chapter and chapter 4715, the Minnesota Plumbing Code. Subp. 2.
More informationCARING FOR YOUR WATER HEATER
http://waterheatertimer.org/troubleshoot-rheem-tankless-water-heater.html Water Heater Inspections CARING FOR YOUR WATER HEATER Venting System (Direct Vent Only) The venting system should be inspected
More informationMUELLER FALLING FILM CHILLERS
MUELLER FALLING FILM CHILLERS MUELLER FALLING FILM CHILLERS ARE DESIGNED TO COOL ANY FLUID TO WITHIN 2 F OF ITS FREEZE POINT. The primary application for Mueller s falling film chiller is to cool food-grade
More informationTWE+TTA TWE+TWA 6.25-20 T.R.
TWE+TTA TWE+TWA 6.25-20 T.R. Main features : TWE indoor unit : Convertible cabinet, vertical or horizontal. Adjustable speed pulley-belt drive centrifugal fan motor. Aluminium fin coil with copper-tubes.
More informationice 3 FLUID TO FLUID HEAT PUMP
ice 3 FLUID TO FLUID HEAT PUMP SUBMITTAL DATA (888) 530-7713 P O Box 5, Wentworth, H 03282 Rev.3 (5-30-14) ice 3, IC-2040 Fluid-to-Fluid R-410a Heat Pump Engineering Guide Specifications General otes:
More informationYour safety and the safety of others are very important.
NATURAL GAS TO PROPANE CONVERSION KIT 090 INSTALLATION INSTRUCTIONS FOR ALTITUDES 0 -,00 FT. ONLY PROPANE CONVERSION KIT SAFETY... INSTALLATION REQUIREMENTS... Tools and Parts... LP Gas Requirements...
More informationAFE424 SERVICE PARTS
This is the parts list for the AFE. When looking up part numbers, always check the complete model and serial numbers to be certain of ordering the correct parts. The Air Cooled model has also been manufactured
More informationKRAMER ELECTRIC DEFROST EVAPORATORS LPE - LVE - MSE - CSE - HSE - CED - KED INSTALLATION, START-UP AND MAINTENANCE INSTRUCTIONS
BULLETIN EDEI-812 SEPTEMBER, 1999 NEW KRAMER ELECTRIC DEFROST EVAPORATORS LPE - LVE - MSE - CSE - HSE - CED - KED INSTALLATION, START-UP AND MAINTENANCE INSTRUCTIONS 14230 Lochridge Blvd - Covington, Georgia
More informationPackaged Terminal Air Conditioner Wall Sleeve Installation
Installation & Maintenance Data IM 1196 Group: PTAC Part Number: 910141799 Date: October 2013 Packaged Terminal Air Conditioner Installation x 42" PGAN with Top-Mounted Hydronic Heat Note: Installation
More informationSMG. P/N 0519836_B NSF Certified. DOE 2012 Energy Efficiency Compliant. Technical Data Sheet. April 2013. Spanish 0538810 French 0538811
T Stat Bulb Location Technical Data Sheet P/N 0519836_B NSF Certified April 2013 DOE 2012 Energy Efficiency Compliant (Optional Lights) We reserve the right to change or revise specifications and product
More informationAir Conditioner Water Heater - A Product of HotSpot Energy LLC
Air Conditioner Water Heater - A Product of HotSpot Energy LLC PLEASE READ THIS BEFORE YOU INSTALL THE UNIT 1. This air conditioner must be installed and/or repaired by a qualified technician. If you perform
More informationSECTION 23 81 43 HEAT PUMPS
SECTION 23 81 43 HEAT PUMPS PART 1 GENERAL 1.1 SUMMARY A. Section Includes: 1. Packaged rooftop heat pumps. 1.2 REFERENCES A. American Society of Heating, Refrigerating and Air-Conditioning Engineers:
More informationService Facts. WARNING: HAZARDOUS VOLTAGE - DISCONNECT POWER and DISCHARGE 4TTM3-SF-1. Split System Cooling 4TTM3018-4TTM3060
4TTM3-SF-1 Service Facts Split System Cooling 4TTM3018-4TTM3060! CAUTION UNIT CONTAINS R-410A REFRIGERANT! R-410A OPERATING PRESSURE EXCEEDS THE LIMIT OF R-22. PROPER SERVICE EQUIPMENT IS REQUIRED. FAILURE
More informationSolenoid valves Type EVU
Data sheet Solenoid valves EVU EVU solenoid valves are designed to fit into compact refrigeration systems. Available in direct and pilot operated versions, they can be applied in liquid, suction, and hot
More informationHeat Pump Water Heater IOM Manual
Heat Pump Water Heater IOM Manual Installation Operation & Maintenance This manual is intended as an aid to qualified service personnel for proper installation, operation and maintenance of the heat pump
More informationHow To Understand Evaporator
SECTION 5 COMMERCIAL REFRIGERATION UNIT 21 EVAPORATORS AND THE REFRIGERATION SYSTEM UNIT OBJECTIVES After studying this unit, the reader should be able to Define high-, medium-, and low-temperature refrigeration.
More informationOHIO MEDICAL CORPORATION. Medical Gas Panel. Installation and Maintenance Manual
OHIO MEDICAL CORPORATION Medical Gas Panel Installation and Maintenance Manual P/N 255105 (Rev.5) 08/2005 P/N 255105 (Rev.5) 08/2005 PAGE 2 OHIO MEDICAL CORPORATION PAGE 3 1.0 User Responsibilities The
More informationNSN 4120-01-21 4-3692
*TM 9-4120-388-14 TECHNICAL MANUAL Operator s, Unit, Direct Support, And General Support Maintenance Manual AIR CONDITIONER, VERTICAL, COMPACT, 18,000 BTU/HR 208 VOLT, 3 PHASE, 50/60 HERTZ NSN 4120-01-21
More informationHP switch LP switch Discharge thermo Comp. Surface thermo
1 Specifications Zubadan Model Name PUHZ-SHW80VHA PUHZ-SHW11VHA PUHZ-SHW11YHA Power supply (phase, cycle, voltage) 1φ, V, Hz 1φ, V, Hz 3φ, 0V, Hz Max. current A 9.5 35.0 13.0 Breaker size A 3 16 Outer
More informationCool Design for Homes and Offices
AIR BLUE AIR BLUE air conditioning Homes Easy to install and use, quiet, attractive, and designed to fit any space: there are Cool Design for Homes and Offices a lot of reasons why Air Blue air conditioners
More informationInstallation Instructions
CNPVU CNRVU Uncased Coils Upflow - Downflow Heating - Cooling Installation Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS...
More informationAir Eliminators and Combination Air Eliminators Strainers
Description Air Eliminators and Combination Air Eliminator Strainers are designed to provide separation, elimination and prevention of air in piping systems for a variety of installations and conditions.
More informationContents and Nomenclature
DX Coils Contents and Nomenclature Nomenclature... 1 Evaporator Coil Types EN... 2 EF... 2 ER... 2 EJ... 3 EK... 3 Evaporator Construction Connections... 4 Tubing... 4 Headers... 5 Tube Supports... 5 Coil
More informationPRE-ASSEMBLED INSTALLATION INSTRUCTIONS FOR PACB SERIES COAL FIRED OVENS
PRE-ASSEMBLED INSTALLATION INSTRUCTIONS FOR PACB SERIES COAL FIRED OVENS OVENS MANUFACTURED BY: EARTHSTONE OVENS-6717 SAN FERNANDO RD GLENDALE CA 91201 TELEPHONE: 800-840-4915 818-553-1134 FAX: 818-553-1133
More informationTECHNICAL GUIDE 95.5% SINGLE STAGE GAS-FIRED RESIDENTIAL MULTI-POSITION GAS FURNACES MODELS: TG9S DESCRIPTION FEATURES
TECHNICAL GUIDE 95.5% SINGLE STAGE GAS-FIRED RESIDENTIAL MULTI-POSITION GAS FURNACES MODELS: TG9S NATURAL GAS 40-130 MBH INPUT Due to continuous product improvement, specifications are subject to change
More informationREMOTE RACK SYSTEM OWNERS MANUAL INSTALLATION OPERATIONS - MAINTENANCE
REMOTE RACK SYSTEM OWNERS MANUAL INSTALLATION OPERATIONS - MAINTENANCE 4401 Blue Mound Rd. Fort Worth, TX 76106 Phone: (714) 870-8661 Toll-Free: (800) 833-1106 Fax: (714) 870-6473 www.kairak.com KAIRAK,
More informationAIR-COOLED CONDENSERS Technical Guide
BN-ACCTB0306 March, 2006 AIR-COOLED CONDENSERS Technical Guide Monarch and Ambassador Series TABLE OF CONTENTS Overview... 2, 3 Features & Options... 3, 4 Three Solutions...5 Nomenclature...6 Condenser
More informationfor Phoenix II-2 Human Cremation Retort
Installation Manual for Phoenix II-2 Human Cremation Retort Please Read Carefully Before Installing. Any Questions? Please Call! Failure to install properly may VOID your warranty. NOTICE: Specifications
More informationSunMor SM-V30 Solar Water Heater Installation Manual
SunMor SM-V30 Solar Water Heater Installation Manual Rev. 1.02 Congratulations on the purchase of your new SunMor SM-V30 from Nature s Comfort LLC! You must read this entire instruction manual before beginning
More informationSYLLABUS For BASIC TRADE COURSE (360 Hours) On REFRIGERATION AND AIR CONDITIONING
SYLLABUS For BASIC TRADE COURSE (360 Hours) On REFRIGERATION AND AIR CONDITIONING INDEX 1. Introduction 3 2. Objectives 3 3. Employment Opportunity 4 4. Course Structure 4 5. Entry Qualification 4 6. List
More informationOverview. Introduction Cooling Tower Basics Principles of Operation Types of Cooling Towers Common Applications Design Considerations
Stephen Lowe ASHRAE Hampton Roads Chapter Past President AECOM Design Mechanical Engineering Discipline Manager, Virginia Beach Division Professional Engineer Commonwealth of Virginia, NCEES BSME University
More informationMedical Air Systems: Scroll
GENERAL The Chemetron skid mount scroll medical air system is designed to provide medical breathing air for hospital and medical institutions. This system meets NFPA 99 requirements for Level 1 breathing
More informationUB1 AIR CONDITIONING UNIT INSTALLATION INSTRUCTIONS
UB1 AIR CONDITIONING UNIT INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS: Carefully read these instructions before installing your new air-conditioner. AUSTRALIAN AUTOMOTIVE AIR AL00500054E 1 Table
More informationInstallation Manual. Solar Pool Heating System. Read the complete manual before beginning the installation
Solar Pool Heating System Installation Manual Read the complete manual before beginning the installation 1. Sizing the System Visit www.techno-solis.com to size the system using the sizing calculator.
More informationEvaporator Coil Installation Instructions
Part # 96654008 July 2010 Evaporator Coil Installation Instructions A-Coil Page 4 Multi-position A-Coil Page 4-7 Slab Coil Page 5 Horizontal A-Coil Top Connection Page 5 Horizontal A-Coil Side Connection
More informationTable Z. Troubleshooting Chart for Air Conditioners. Cause
Troubleshooting Chart for Air Conditioners Type of Unit Complaint Cause With open-type compressor Electric motor will not start Power failure Check circuit for power source Compressor stuck Locate cause
More informationDIABLO VALLEY COLLEGE CATALOG 2015-2016
HEATING, VENTILATION, AIR CONDITIONING, REFRIGERATION - HVACR Tish Young, Dean Physical Sciences and Engineering Division Physical Sciences Building, Room 263 Possible career opportunities Upon successful
More informationIt will be available soon as an 8.5 X 11 paperback. For easier navigation through the e book, use the table of contents.
The System Evaluation Manual and Chiller Evaluation Manual have been revised and combined into this new book; the Air Conditioning and Refrigeration System Evaluation Guide. It will be available soon as
More informationApplication Engineering
Application Engineering February 2012 Digital Capacity Control for Copeland Scroll Refrigeration Compressors INDEX Page 1. Introduction... 1 2. Theory of Operation... 1 3. Nomenclature... 1 4. Digital
More informationUR...3 URX CF...7 URHE CF...11. Heat recovery unit. Heat recovery unit with refrigerant circuit(442-1947 cfm)
UR...3 Heat recovery unit URX CF...7 Heat recovery unit with refrigerant circuit(442-1947 cfm) URHE CF...11 High efficiency heat recovery unit with refrigeration circuit(588-1942 cfm) UR Heat recovery
More informationCOMMERCIAL HVAC CHILLER EQUIPMENT. Air-Cooled Chillers
COMMERCIAL HVAC CHILLER EQUIPMENT Air-Cooled Chillers Technical Development Programs (TDP) are modules of technical training on HVAC theory, system design, equipment selection and application topics. They
More informationTHERMO KING TRUCK & TRAILER UNIT ALARM CODES THIS DOCUMENT SHOWS ALL CURRENT ALARM CODES FOR THERMO KING TRUCK AND TRAILER UNITS.
THERMO KING TRUCK & TRAILER UNIT ALARM CODES THIS DOCUMENT SHOWS ALL CURRENT ALARM CODES FOR THERMO KING TRUCK AND TRAILER UNITS. NOT ALL CODES ARE POSSIBLE ON ANY INDIVIDUAL UNIT. IF THE ALARM APPLIES
More informationAny Service Technician Can Fix It A Good Service Technician Can Figure Out What s Wrong With It.
I Dave s Statement If the thermostat calls for cooling, and the furnace fan is running properly, and the coil airflow is adequate, and the condenser fan is running properly, and the condenser airflow is
More informationSECTION 15732 AIR CONDITIONING UNIT
SECTION 15732 AIR CONDITIONING UNIT PART 1 GENERAL 1.01 SUMMARY A. Section includes: 1. Packaged, split system air conditioning unit No. 1. 1.02 REFERENCES A. Air-Conditioning, Heating, and Refrigeration
More information