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23
3.6.2: Install a New Evaporator
NOTE: A replacement evaporator assembly (42249079) will include the
following components:
(1) Evaporator heat exchanger assembly
(1) Filter drier
(1) Pre bent suction tube extension
(1) Vibration Isolator
(2) Nylon zip tie fasteners
(2) Pieces of permagum
1. Take the replacement evaporator and unroll the capillary tube on the heat exchanger.
2. Absolutely make sure that the ends of the capillary tube and suction line are well
capped. Wrap both ends with tape to insure that no foam enter the tubing when
passing it through the ½” drilled hole. Any foam that is allowed in the tubing will
compromise the sealed system.
3. Once the new evaporator is in place, the extended suction line into the machine
compartment will have to be bent (thumbs and forefingers) at an angle towards the
compressor.
4. Carefully recoil the capillary tube.
5. Install a new filter drier and solder the capillary and liquid line in place.
6. The kit will include a section of pre-bent suction line. The bent side will be soldered into
the compressor.
7. Use a 3/8”swedging tool to expand the opposite end of the suction extension to fit over
the new suction line extending into the machine compartment. This connection can now
be soldered.
8. Evacuate, charge to serial plate recommendation, and leak check the sealed system.
9. The kit also includes a rubber vibration isolator, place this onto the heat exchanger
behind the evaporator to protect against tube rattles between the evaporator and
cabinet liner.
10. Replace the defrost thermistor and attach with the two zip lock fasteners in the kit.
11. Place one piece of permagum around the new evaporator opening in the interior of the
cabinet. Make sure that it is worked into and around the hole to seal off any moisture or
heat.
12. Use the second piece of permagum and also work that into and around the hole in the
machine compartment where the new heat exchanger exits the liner.
13. Re-install the white foam spacers. The spacers have an off center cut on one side, place
the fat side of the spacer (the thickest foam slot) towards the back wall of the liner.
14. Reassemble the coil cover and interior components in reverse order as removed.
15. Reinstall the machine compartment back in place and secure in place at the front and
rear of the cabinet.
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