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Transcript of Whirlpool WGHP46 Specifications

HEAT PUMP INSTALLATION INSTRUCTIONS Table of Contents HEAT PUMP SAFETY PRECAUTIONS.........................................1 ELECTRICAL CONNECTIONS ......................................................5 Important Note to the Owner Regarding Product Warranty .......2 Over-current Protection ...............................................................5 Shipping Inspection .....................................................................2 High Voltage Connections ...........................................................5 Codes and Regulations................................................................2 Low Voltage Connections ............................................................5 Installation Clearances .................................................................2 Rooftop Installations ....................................................................2 SYSTEM START-UP.......................................................................7 SAFE REFRIGERANT HANDLING ................................................3 FINAL CHARGE ADJUSTMENT....................................................7 Fixed Orifice .................................................................................8 REFRIGERANT LINES....................................................................3 Expansion Valve System..............................................................8 Burying Refrigerant Lines.............................................................4 2-Stage Application......................................................................9 Refrigerant Line Connections ......................................................4 Heat Pump--Heating Cycle .........................................................9 Leak Testing--Nitrogen or Nitrogen-Traced ...............................4 System Evacuation ......................................................................5 TROUBLESHOOTING INFORMATION .......................................10 ASSISTANCE OR SERVICE .........................................................15 HEAT PUMP SAFETY PRECAUTIONS The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards. It is the owner's and installer's responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of personal injury, property damage, and/or product damage. Recognize this symbol as a safety precaution. WARNING WARNING GoodmHaIGnH V6OLTAGE! Hazards or uGnsoaofedpmracatinces1could result in property Disconnect ALL power before servicing. damage, product damage, severe personal injury or death. Multiple power sources may be present. CAUTION Failure to do so may cause property damage, personal injury or death. Hazards or unsafe practices may result in property damage, product damage, personal injury or death. WARNING GooCdmAaUn T9 ION Installation and repair of this unit should Hazards or unsafe practices may result in property be performed ONLGY boyoinddmividaunals7meeting or product damage. the requirements of an "Entry Level Technician," at a minimum, as specified by the Air-Conditioning, Heating and Refrigeration Institute (AHRI). Attempting to install or repair this unit without such background may result in product damage, personal injury or death. CAUTION SthceroalilrecqounidpiptieodniunngitsGsyssohteoomudl.dmVnaeacvuneurmb3se2tuhsisedlotwo evacuate can cause internal electrical arcing resulting in a damaged or failed Placeholder compressor. for Bar Code Whirlpool(R) and Whirlpool Gold(R) Models WHP43, WHP44, WGHP43, WGHP44, WGHP46 WPIO-259K

SAFE REFRIGERANT HANDLING While these items will not cover every conceivable situation, they should serve as a useful guide. WARNING WARNING Goodman 12 To avoid possible explosion: To avoid possible injury, explosion or death, practice safe * Never apply flame or steam to a refrigerant cylinder. If handling of refrigerants. you must heat a cylinder for faster charging, partially immerse it in warm water. WARNING * Never fill a cylinGdoeor dmmoaren t1h4an 80% full of liquid refrigerant. Refrigerants are heavier than air. They can "push out" * Never add anything other than R-22 to an R-22 cylinder the oxygen in your lungs or in any enclosed space. To or R-410A to an R-410A cylinder. The service avoid possible difficulty in breathing or death: equipment used must be listed or certified for the type of refrigerant used. * Never purge refrigerant into an enclosed room or * Store cylinders in a cool, dry place. Never use a cylinder space. By law, all refGriogoedramnatns m13ust be reclaimed. as a platform or a roller. * If an indoor leak is suspected, throughly ventilate the WARNING area before beginning work. To avoid possible explosion, use only returnable (not * Liquid refrigerant can be very cold. To avoid possible disposable) service cylindeGrsoowdhmenanre1m5 oving refrigerant frostbite or blindness, avoid contact and wear gloves from a system. and goggles. If liquid refrigerant does contact your skin or eyes, seek medical help immediately. * Ensure the cylinder is free of damage which could lead to a leak or explosion. * Always follow EPA regulations. Never burn refrigerant, as poisonous gas will be produced. * Ensure the hydrostatic test date does not exceed 5 years. * Ensure the pressure rating meets or exceeds 400 lbs. When in doubt, do not use cylinder. REFRIGERANT LINES CAUTION Recommended Interconnecting Tubing--ft (m) The compressor POEGooiol dfomr aRn-41160A units is extremely 0 to 24 25 to 49 50 to 79 susceptible to moisture absorption and could cause (7) (8 to 15) (15 to 24)* compressor failure. Do not leave system open to atmosphere any longer than necessary for installation. Conditioner Line Diameter (in. OD) Use only refrigerant-grade (dehydrated and sealed) copper Unit Tons Suction Liquid Suction Liquid Suction Liquid tubing to connect the heat pump with the indoor evaporator. After cutting the tubing, install plugs to keep refrigerant tubing clean 1 and dry prior to and during installation. Tubing should always be cut square, keeping the ends round and free from burrs. Clean 2 the tubing to prevent contamination. 2 NOTE: Do not let the refrigerant lines come in direct contact with plumbing, ductwork, floor joists, wall studs, floors and walls. 3 1 When running refrigerant lines through a foundation or wall, openings should allow for sound and vibration absorbing material 3 1 1 to be placed or installed between tubing and foundation. Any gap between the foundation or wall and refrigerant lines should be 4 1 1 filled with a pliable silicon-based caulk, RTV or a vibration damping material. Avoid suspending refrigerant tubing from joists 5 1 1 and studs with rigid wire or straps that would come in contact with the tubing. Use an insulated or suspension-type hanger. *For lines greater than 79 ft (24 m) in length or vertical elevation Keep both lines separate and always insulate the suction line. changes more than 50 ft (15 m), refer to the Remote Cooling Service Manual or contact your distributor for assistance. These sizes are recommended for line lengths of 79 ft (24 m) or less to obtain optimum performance. For alternate line sizing Mounting the evaporator coil above the heat pump will require an options or runs of more than 79 ft (24 m), refer to Remote Cooling inverted loop in the suction line adjacent or near the connection Service Manual, TP-107 Long Line Set Application R- 410A or to the evaporator coil. The top of the loop must be slightly higher contact your distributor for assistance. than the top of the evaporator coil. 3

C Refrigerant Line Connections A B IMPORTANT: To avoid overheating the service valve, TXV valve or filter dryer while brazing, wrap the component with a wet rag, D or use a thermal heat trap compound. Be sure to follow the manufacturer's instruction when using the heat trap compound. A. Heat pump C. Evaporator coil B. Suction line D. Liquid line NOTE: Remove Schrader valves from service valves before brazing tubes to the valves. Use a brazing alloy of 2% minimum Mounting the heat pump above the evaporator coil will require an silver content. Do not use flux. oil trap in the suction line. Install one oil trap at the evaporator for a height difference of more than 15 ft (4.5 m) between indoor and Torch heat required to braze tubes of various sizes is proportional outdoor units. to the size of the tube. Tubes of smaller size require less heat to bring the tube to brazing temperature before adding brazing alloy. A Applying too much heat to any tube can melt the tube. Service personnel must use the appropriate heat level for the size of the C tube being brazed. D NOTE: The use of a heat shield when brazing is recommended to B avoid burning the serial plate or the finish on the unit. A. Heat pump C. Suction line 1. The ends of the refrigerant lines must be cut square, B. Liquid line D. Evaporator coil deburred, cleaned and be round and free from nicks or dents. Any other condition increases the chance of a refrigerant Insulation is necessary to avoid condensation from forming and leak. dropping from the suction line. Armaflex (or satisfactory equivalent) with " (1 cm) minimum wall thickness is 2. "Sweep" the refrigerant line with nitrogen or inert gas during recommended. In severe conditions (hot, high humidity areas), brazing to prevent the formation of copper-oxide inside the " (1.3 cm) insulation may be required. Insulation must be refrigerant lines. The POE oils used in R-410A applications installed in a manner which keeps tubing from damage and will clean any copper-oxide present from the inside of the contamination. refrigerant lines and spread it throughout the system. This may cause a blockage or failure of the metering device. Where possible, drain as much residual compressor oil from existing systems, lines and traps; pay close attention to low areas 3. After brazing, quench the joints with water or a wet cloth to where oil may collect. prevent overheating of the service valve. NOTE: If changing refrigerant types, ensure the indoor coil and 4. Ensure the filter dryer paint finish is intact after brazing. If the metering device is compatible with the type of refrigerant being paint of the steel filter dryer has been burned or chipped, used; otherwise, the indoor coil must be replaced. repaint or treat with a rust preventive. This is especially important on suction line filter dryers which are continually Burying Refrigerant Lines wet when the unit is operating. If burying refrigerant lines cannot be avoided, use the following NOTES: checklist. Be careful not to kink or dent refrigerant lines. Kinked or 1. Insulate liquid and suction lines separately. dented lines will cause poor performance or compressor damage. 2. Enclose all underground portions of the refrigerant lines in waterproof material (conduit or pipe) sealing the ends where Do not make final refrigerant line connection until plugs are tubing enters/exits the enclosure. removed from refrigerant tubing. 3. If the lines must pass under or through a concrete slab, Before brazing, verify indoor piston size by checking the ensure lines are adequately protected and sealed. piston kit chart packaged with indoor unit. Leak Testing--Nitrogen or Nitrogen-Traced WGooAdmaRn 1N7 ING To avoid the risk of fire or explosion, never use oxygen, high pressure air or flammable gases for leak testing of a refrigeration system. WARNING To avoid possibleGeoxopdlmosainon1,8the line from the nitrogen cylinder must include a pressure regulator and a pressure relief valve. The pressure relief valve must be set to open at no more than 150 psig. Pressure test the system using dry nitrogen and soapy water to locate leaks. If you wish to use a leak detector, charge the system to 10 psi using the appropriate refrigerant, and then use nitrogen to finish charging the system to working pressure. Apply the detector to suspect areas. If leaks are found, repair them. After repair, repeat the pressure test. If no leaks exist, proceed to system evacuation. 4