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All field wiring must be done in accordance with National 
Electrical Code requirements, applicable requirements of UL, 
or local codes, where applicable.

Electrical wiring, disconnect means and over-current 
protection are to be supplied by the installer. Refer to the 
rating plate for the maximum over-current protection, 
minimum circuit ampacity, and operating voltage. See the 
wiring diagrams later in “Make Electrical Connections.”

INSTALLATION INSTRUCTIONS

Inspect Shipment

This heat pump is shipped in one package, completely 
assembled and wired. The thermostat is shipped in a separate 
carton when ordered.

1. Check the heat pump rating plate to confirm specifications 

are as ordered.

2. Upon receipt of equipment, carefully inspect it for possible 

shipping damage. Take special care to examine the unit 
inside the carton if the carton is damaged.

If damage is found, it should be noted on the carrier’s freight bill. 
Damage claims should be filed with the carrier immediately. 
Claims of shortages should be filed with the seller within 5 days.

NOTE: If any damages are discovered and reported to the carrier, 
do not install the unit because your claim may be denied.

Connect Refrigerant Lines

Refrigerant lines must be connected by a licensed, EPA certified 
refrigerant technician in accordance with established procedures.

IMPORTANT:

Connecting refrigerant lines must be clean, dehydrated, 
refrigerant-grade copper lines. Heat pumps should be 
installed only with specified line sizes for approved system 
combinations with elevation differences up to 15 ft and total 
length of up to 50 ft. See the Suction Line Sizes and Liquid 
Line Sizes charts.

Use care with the refrigerant lines during the installation 
process. Sharp bends or possible kinking in the lines will 
cause a reduction in performance.

To avoid contamination of the refrigerant system, do not 
remove the caps from the lines or system connection points 
until connections are ready to be completed. 

1. Route the suction and liquid lines from the fittings on the 

indoor coil to the fittings on the heat pump. Run the lines in 
as direct a path as possible, avoiding unnecessary turns and 
bends.

2. For product efficiency, be sure that the suction line is 

insulated over the entire exposed length and that both 
suction and liquid lines are not in direct contact with floors, 
walls, ductwork, floor joists, or other piping.

3. Remove valve cores.

4. Wrap the service valves with a wet rag.

5. Connect the suction and liquid lines, using a brazing 

compound. Braze with an alloy of silver or copper and 
phosphorus with a melting point above 1,100°F. 

NOTE: Do not use soft solder.

6. Make sure indoor coil has been put in place according to the 

Installation Instructions and is connected to the refrigerant 
lines.

7. Replace valve cores.

8. Pressurize the lines and indoor coil with dry nitrogen not to 

exceed 20 psi.

9. Leak test the refrigerant lines and indoor coil.

10. Evacuate the indoor coil and lines to a minimum of 

500 microns to remove contamination and moisture, then 
disconnect the vacuum pump.

11. Open the suction and liquid service valves fully.

12. Insulate the suction line with refrigerant line insulation 

material of 

¹⁄₄

" or more wall thickness.

13. Pack insulating material around refrigerant lines where they 

penetrate the structure to protect the lines and to minimize 
vibration transmission.

Refrigerant Charge

Refrigerant lines must be connected by a licensed, EPA certified 
refrigerant technician in accordance with established procedures.

IMPORTANT: 

Refrigerant charge adjustment will be required for line set 
lengths greater than 15 ft and for non system matched 
evaporator coils. 

The heat pump is factory charged with the proper refrigerant 
charge amount for a matching evaporator and 15 ft of 
refrigerant line. Refer to the heat pump rating plate for the 
exact amount of this factory charge.

Excessive Weight Hazard

Use two or more people to move and install 
condensing unit or heat pump.

WARNING

Failure to do so can result in back or other injury.

A. Seal openings where refrigerant lines penetrate structure.

A

Содержание W2GH3

Страница 1: ... you don t immediately You can be killed or seriously injured if you don t follow All safety messages will tell you what the potential hazard is tell you how to reduce the chance of injury and tell you what can happen if the instructions are not followed Your safety and the safety of others are very important We have provided many important safety messages in this manual and on your appliance Alwa...

Страница 2: ...installed in the indoor coil Instructions for replacing the expansion device are provided with the indoor coil LocationRequirements This heat pump is designed to be located outdoors with sufficient clearance for free entrance to the inlet and discharge air openings The location must also allow for adequate service access See Minimum Clearances Where possible select a location for the heat pump whi...

Страница 3: ...round vapor line only C Wire tie around vapor line only D Tape or wire tie E Metal sleeve F Tape or wire tie G Strap the vapor line to the floor joist or roof rafter at 8 intervals then strap the liquid line to the vapor line A Anchored heavy nylon wire tie B Strap liquid line to vapor line C Liquid line D Vapor line wrapped in armaflex E Metal sleeve F Wall stud G Automotive muffler type hanger B...

Страница 4: ...ready to be completed 1 Route the suction and liquid lines from the fittings on the indoor coil to the fittings on the heat pump Run the lines in as direct a path as possible avoiding unnecessary turns and bends 2 For product efficiency be sure that the suction line is insulated over the entire exposed length and that both suction and liquid lines are not in direct contact with floors walls ductwo...

Страница 5: ...re to be supplied by the installer Refer to the rating plate for the maximum over current protection minimum circuit ampacity and operating voltage See wiring diagrams later in this section Install an adequately sized branch circuit disconnect per the NEC within sight of and readily accessible from heat pump The cable or conduit and fittings connected from the disconnect to the heat pump shall be ...

Страница 6: ... ground wire C 208 230 volt field supply wires WARNING Electrical Shock Hazard Disconnect power before servicing Replace all parts and panels before operating Failure to do so can result in death or electrical shock T1 T2 L1 L2 L1 L2 C A B A Do not connect C common connection between indoor unit and thermostat except when required by the indoor thermostat Refer to the thermostat installation instr...

Страница 7: ...s necessary to maintain system performance The defrost control is time temperature initiated and temperature terminated with a maximum defrost time time out of 10 minutes The time between defrost cycles is preset at 60 minute intervals at the factory but can be field adjusted between 30 60 or 90 minutes To adjust the time period between defrost cycles see Adjust Time Between Defrost Cycles The def...

Страница 8: ...he test pins When the jumper is placed across the Test pins for 2 seconds the control will enter the defrost mode If the jumper is removed before an additional 5 second period has elapsed 7 seconds total the unit will remain in defrost mode until the defrost thermostat opens or 14 minutes have passed If the jumper is not removed until after the additional 5 second period has elapsed the defrost wi...

Страница 9: ...eaves and other large obstructions should be carefully removed from the heat pump surfaces without damaging the fin surface of the coil Routinely clean or change the indoor air filter Should the indoor coil become dirty thus restricting airflow call a qualified service person to carefully clean the coil surface An annual inspection by a qualified person should be performed to ensure continued qual...

Страница 10: ...10 Notes ...

Страница 11: ...11 ...

Страница 12: ..._____________________ Address ________________________________________________________ Phone number__________________________________________________ Model number __________________________________________________ Serial number __________________________________________________ Installation date ________________________________________________ 48348M005 2005 All rights reserved Registered Trademar...

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