Frigidaire FKCH17F7HW, Technical & Service Manual

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Filter-Drier Installation
Any time the sealed system is opened and the
refrigerant charge is removed, the liquid line filter-drier
must be replaced and the system thoroughly evacuated
before replacing refrigerant.
1. Disconnect electrical supply to freezer.
2. Recover refrigerant by using EPA approved
recovery system.
3. Using a 3 cornered file, score a groove around
capillary tube as close to old filter-drier as possible.
Break capillary tube along score mark from
filter-drier.
4. Cut condenser outlet tube at filter-drier. Discard
filter-drier.
5. Thoroughly clean condenser outlet tube and
capillary tube.
6. Place inlet connection of filter-drier over condenser
tube approximately ¼” and solder.
7. Insert capillary tube input end into filter-drier outlet.
Do not allow tube to bottom against screen. Solder
carefully so that solder does not plug capillary tube.
8. Install process tube adapter to filter-drier.
9. Evacuate and charge system using the
recommended procedure described under
Evacuating and Recharging.
10. Reassemble unit.
3-8
Refrigeration System
Evaporator and Suction Line Replacement
1. Disconnect electrical supply to refrigerator.
2. Recover refrigerant by using EPA approved
recovery system.
3. Remove shelving.
4. Remove evaporator cover.
5. Remove evaporator from its installation position.
6. Cut or remove suction line from compressor.
7. Cut filter-drier from condensing unit.
8. Remove sealant from cabinet where suction line
enters.
9. Remove evaporator and suction line as one piece.
10. Install new evaporator with attached suction line.
11. Seal cabinet.
12. Install new filter drier at condenser outlet.
13. Evacuate and charge system using the
recommended procedure described under
Evacuating and Recharging.
DO NOT unbraze old filter-drier from system. This
will vaporize and drive moisture from desiccant
back into system. The old filter-drier should be
cut out of system.
The following instructions are generalized to
help the technician understand the procedures
of sealed system repairs. See Section 5
Component Teardown on the exact steps of
accessing the components of the refrigeration
system.
The following instructions are generalized to
help the technician understand the procedures
of sealed system repairs. See Section 5
Component Teardown on the exact steps of
accessing the components of the refrigeration
system.