Whirlpool W4GH6 Electrical Requirements, Inspect Shipment, Flush Refrigerant Lines

Electrical Requirements

WARNING

Electrical Shock Hazard Electrically ground condensing unit or heat pump. Connect ground wire to ground lug.

Use copper wire for supply connection. Correct wire gauge is shown in the chart below.

Failure to follow these instructions can result in death or electrical shock.

Rating Plate Ampacity	AWG
Less than 15	14
16 - 20	12
21 - 30	10
31 - 50	8

NOTE: All outdoor wiring must be suitable for outdoor use. Use copper conductors only.

■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 in “Make Electrical Connections.”

Inspect Shipment

WARNING

Excessive Weight Hazard

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

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

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 heat pump 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 heat pump because your claim may be denied.

Flush Refrigerant Lines

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

NOTES:

■R-410A outdoor systems are not recommended for use with indoor systems that have used R-22 as the refrigerant. However, if this unit is being matched with an approved line set or indoor coil which was previously charged with R-22 refrigerant, or if it is being matched with a coil which was manufactured before January of 1999, the R-22 coil and line set must be flushed prior to installation.

■Check the refrigerant lines for size and length. See “Connect Refrigerant Lines.”

Flushing Connections

Existing

Indoor Coil

Inverted R-22 Cylinder (Contains clean R-22 to be used for flushing)

Existing Vapor Line

Existing Liquid Line

Vapor Line Service Valve

Liquid Line Service Valve

Outdoor System

Low High

Pressure Pressure

Gauge Manifold

Opened Closed

Vapor

Liquid

Recovery Cylinder

Tank Return	NOTE: The inverted R-22 cylinder must contain at least
	the same amount of refrigerant as was recovered from
	the existing system.
Inlet
Discharge
Recovery Machine

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