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DPO Evaporator / LokRing Installation
IMPORTANT SAFETY INFORMATION
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 appy heat from any source to a container
of refrigerant. Such action will cause excessive
pressure in the container.
Always wear approved safety goggles when
working with refrigerants and nitrogen holding
charge in replacement compressor. Contact
with these gases may cause injury.
Part Numbers:
• WR97X10014: 3/8" LokRing Union
• WR88X16: LokPrep sealant/cleaner
• WX5X1: LokRing Tool with 3/8" Jaw
1. Disconnect power to the refrigerator.
2. Remove the rear access cover in order to
gain access to the machine compartment.
3. Recover the refrigerant from the inoperative
sealed system using approved recovery
equipment.
4. Remove the shelves and ice trays, or
icemaker (if used), from the freezer
compartment, while the refrigerant is being
recovered.
5. Remove the evaporator cover. Remove
the screws from the base of the air tower,
remove the air tower and foam nozzle.
Remove screws from the upper left and right
of evaporator cover and screws attached to
the evaporator fan bracket.
6. Remove the evaporator cover and freezer
oor.
7. Disconnect the power cord.
8. Remove the evaporator fan assembly by
taking out both screws and disconnecting
the orange, black and green wire leads.
9. Disengage the defrost thermostat from the
evaporator. Disconnect both wire leads to
the defrost heater.
10. Cut the copper jumper tubes as close to
the epoxy joints as possible (see illustration
below). Use a tubing cutter to make this cut.
DO NOT use a hacksaw.
11. Loosen (2) mounting screws that fasten the
evaporator to the rear wall of the freezer.
Remove the defective evaporator.
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