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2. PREPARATION
1. Remove Cover Protector from Compressor
2. Replace Starting Relay.
3. Replace Over Load Protector (OLP).
3. DISCHARGING THE REFRIGERANT
Cut the compreesor sharge pipe and
capillary pipe near Dryer to discharge
Refrigerant.
4. REMOVING THE COMPRESSOR
1.
Disconnect the discharge pipe from the
compressor with brazing.
2.
Disconnect the Suction pipe from the
compressor with brazing
3.
Remove the Compressor.
6. PURGING THE PIPE IN THE REFRIGERATING UNIT
Note:
1. For purging the pipe, use HFC-134a as liquid state only.
Never use cleaning liquid which contain chlorine and blowing agent such CFC-12,
HCFC-22, CFC-113, HCFC-141b and R-502.
2. Standard of purging the pipe
Purging the pipe is necessary when compressor oil deteriorates severely and when
a
compressor oil contains impurity.
b Continue to purge the pipe until no stained liquid come out.
c All pipes except for compressor and dryer should be cleaned by purging.
Suction pipe
Dryer
5. MEMERIKSA OLI COMPRESSOR
CHECKING THE COMPRESSOR OIL
1.
Prepare a clean vinyl bag (enclosed in the
compressor part case ) for the oil.
Tilt the compressor slowly and let a little oil
2.
(approx. 10 ml) flow out from the charge
pipe.
Note:
In case of clog caused by solid substance,
when compressor oil has no discoloration
(light yellow) the compressor is installed
as it was. So don't collect the oil more
than approx. 10 ml. Otherwise it may
cause a malfunction.
3.
According to "Diagnosing standard" of the
degree of the case of discoloration of the
oil.
4.
The treatment of the case should be
decided by " Repairing Standard of HFC-
134a Refrigerating Unit".
-13-
Compressor
Discharge Pipe
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