GE PSH23PGR Series, Technical Service Manual

Page: 39 / 62

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13. Connect the capillary tube to the inlet tube
of the evaporator. Connect the 5 /
16
-in.
OD copper tube to the outlet tube of the
evaporator (remove any excess length as
required to obtain the correct fi t).
14. Apply a liberal amount of thermal paste
around both epoxy joints to prevent heat from
damaging joint integrity.
15. Install a metal brazing shield between the
joints and the plastic liner.
16. Protect the freezer fl oor from molten solder
during brazing.
17. Angle torch so that the fl ame is directed away
from the plastic liner. Braze both joints. Clean
and inspect joints. Remove the brazing shield.
18. Clean thermal paste off the joints. Dress the
joints to the right of the freezer evaporator
so the freezer evaporator cover can be
reinstalled without interference.
19. Reinsert the thermistor into the aluminum
block on the rear of the new fresh food
evaporator.
20. Attach the evaporator to the fresh food liner
using the original screws. Ensure that the
drain pan is properly positioned. Install a new
Styrofoam block into the hole of the mullion.
Attach foam tubes to evaporator inlet/outlet
tubes using wire tie provided.
21. Remove the old drier by cutting the condenser
loop as close as possible to the drier. Install
the new drier assembly, making sure that
there is suffi cient space between the tubing.
Install the access tube on the compressor.
22. Evacuate and charge the system. Use original
factory charge quantity of R-134a. (See
Evacuation and Charging Procedure
.)
23. Replace all component parts in both the
freezer and the fresh food compartments.
24. Reinstall the rear access cover.
Replacing Fresh Food Evaporator Using
the
LOKRING
Method
Parts Needed:
Drier Assembly (part # WR86X93)
Process Tube (part # WJ56X61
LOKRING
Connectors (part # WR97X10021)
Note: If it is determined that the epoxy joints
(transition joint between the aluminum and copper
jumper) on the freezer evaporator assembly are
defective, then
LOKRING
connectors can be used
to repair the joints. Refer to Pub. No. 31-9067 for
more
LOKRING
information.
1. Follow steps 1 through 9 under
Replacing
Fresh Food Evaporator Using the Brazing
Method.
2. Using the tube cutter, cut both copper tubes
as close to the epoxy joint as possible. Leave
as much
5 /
16
-in. tubing as possible for a good
LOKRING
connection.
3. Remove the fresh food evaporator.
4. Modify replacement evaporator to use
LOKRING
connectors.
a. Using the tubing cutter, cut the jumper
tube at the outlet end of the evaporator
2 inches from the epoxy joint.
b. Cut the jumper tube on the inlet end of the
evaporator (capillary joint) 1 1 /
2
inches from
the epoxy joint. Make two joints using the
LOKRING
connectors for
5
/
16
-in. copper to
copper joints.
•
•
•
Inlet Tube
Outlet Tube
2"
Epoxy
Joints
1-1/2"