Fan Motor - Electrolux EXP09CN1W Service Manual

1. Recover all refrigerant and oil from the system.
2. Remove compressor, capillary tube and filter drier from the system.
3. Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent, to
remove all contamination from system. Inspect suction and discharge line for carbon deposits.
Remove and clean if necessary.
4. Reassemble the system, including new drier strainer and capillary tube.
5. Proceed with processing as outlined under hermetic component replacement.
8.2.5 Rotary compressor special troubleshooting and service
Basically, troubleshooting and servicing rotary compressors is the same as on the reciprocating
compressor with only a few exceptions.
1. Because of the spinning motion of the rotary, the mounts are critical. If vibration is present,
check the mounts carefully.
2. The electrical terminals on the rotary are in a different order than the reciprocating
compressors. The terminal markings are on the cover gasket. Use your wiring diagram to
insure correct connections.
8.2.6 Refrigerant charge
1. The refrigerant charge is extremely critical. It must be measured charge carefully - as exact
as possible to the nameplate charge.
2. The correct method for charging the rotary is to introduce liquid refrigerant into the high side
of the system with the unit off. Then start compressor and enter the balance of the charge, gas
only, into the low side.
The introduction of liquid into the low side, without the use of a capillary tube, will cause
damage to the discharge valve of the rotary compressor.
NOTE: All inoperative compressors returned to Friedrich must have all lines properly plugged with the
plugs from the replacement compressor.

8.3 Fan motor

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A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan.
A self-resetting overload is located inside the motor to protect against high temperature and high
amperage conditions.
8.3.1 Fan motor test
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