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Sealed System
WARNING
• Be careful when using a torch inside the plastic
cabinet. Use approved safety equipment and
protect the liner from damage with the heat
shield kit (part #WX5X8926), which includes the
heat shield and thermal paste. The thermal
paste is available separately (part #WX5X8927).
• Before cutting or using a torch on refrigerant
tubes, recover the refrigerant from the system,
using approved recovery equipment.
• Never charge new refrigerant through the purge
valve. This valve is always located on the high-
pressure side of the system.
• Never apply heat from any source to a container
of refrigerant. Such action will cause excessive
pressure in the container.
• Always wear goggles when working with
refrigerants and nitrogen holding charge in
some replacement parts. Contact with these
gases may cause injury.
Evacuation and Charging Procedure
1. Attach the hose from the R-134a charging
cylinder to the process tube port on the
compressor.
2. Evacuate the system to a minimum 20 in.
vacuum using the refrigerator compressor and
recovery pump, which is attached to the new
drier assembly.
3.
Turn off the recovery pump. Close the ball valve
on the hose connected to the high-pressure
side port connection. Add 3 ounces of R-134a
refrigerant to the system. Let the refrigerator
operate and circulate the refrigerant for 5
minutes.
4.
Open the ball valve. Recover the purge/sweep
charge using the recovery pump and the
refrigerator compressor until a 20 in. vacuum
is attained. Close the ball valve and remove the
recovery hose.
5. Charge the system with the exact amount of
R-134a refrigerant specified.
6.
Disconnect the power cord to the refrigerator.
This allows the pressure to equalize. After 3 to 5
minutes, the low-pressure side will be positive
and then, the hose-to-charging port can be
disconnected.
7. Using an electronic leak detector, check all
brazed joints and both schrader ports. Reinstall
caps to schrader ports.
