Electrolux BEVERAGE CENTER II, Руководство по обслуживанию

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Replacement of compressor and installation of filter-drier
must be done in continuous sequence so system is exposed
to atmosphere no longer than necessary.
All replacement compressors are shipped with rubber plugs in
the suction, discharge, and process tubes and contain the
3. Connect hand shut-off valve on flushing hose to
process coupling.
4. Slowly open hand shut-off valve and allow nitrogen to
flow through condenser until discharge is clear.
CAUTION: DO NOT exceed 300 PSIG.
5. Disconnect cap tube from evaporator. Flush
evaporator in same manner as condenser.
CAUTION: DO NOT exceed 150 PSIG.
6. Flush cap tube. This is only possible if you have
proper service valve adaptor.
CAUTION: DO NOT exceed 300 PSIG.
7. Reassemble system.
To Use Refrigerant To Flush The System:
CAUTION: Refrigerant used for flushing must
be recovered into a recovery bag. Meter
amount of refrigerant used for flushing with
your charging cylinder. DO NOT OVERFILL
THE BAG.
1. Disconnect the suction and discharge lines from the
compressor and remove the filter-drier. Connect
process coupling to outlet and inlet tube of condenser.
2. Connect hose to outlet process coupling and
charging cylinder. Connect another hose to inlet
coupling and recovery bag.
3. Open charging cylinder and allow refrigerant to flow
through condenser until discharge into bag is clear.
NOTE: To flush evaporator and heat exchanger you
must remove evaporator from inside product to
disconnect cap tube.
4. Disconnect capillary tube from evaporator.
Flush evaporator in same manner as condenser.
5. Flush cap tube. This is only possible if you have
proper service valve adaptor.
6. Reassemble system.
Installing a New Compressor
NOTE: Entirely new compressors have been
developed for use with R-134a and Ester oil
refrigeration systems. Both compressor and electric
motor have been modified. Old compressors intended
for R-12 refrigerant must not be used for new systems
charged with R-134a.
correct oil charge and a holding charge of inert gas. Compres-
sors have a low-side process tube attached to the compressor
shell. A high-side process tube is attached to the filter-drier.
WARNING: DO NOT OPERATE
RECIPROCATING COMPRESSOR WHEN
CHARGING LIQUID REFRIGERANT INTO
SYSTEM THROUGH ITS PROCESS TUBE.
Replacement compressors for refrigerators and food freezers
may have an oil cooler even if the original compressor did not.
If the product is not equipped for an oil cooler, leave the plastic
caps in place and install the compressor, connecting only to the
suction and discharge lines of the new compressor.
Before installing the replacement compressor, remove the
discharge plug and check for the pop sound of the inert gas
leaving the compressor.
CAUTION: DO NOT use compressor if you do
not hear this sound.
If the compressor checks OK, reinstall the plug. Do not remove
any of the plugs again until the compressor is in position and
you are ready to braze the lines.
CAUTION: On R-134a systems, compressor
must NOT be left open to atmosphere for more
than 10 minutes to prevent moisture contami-
nation of oil.
A new compressor which is cold (e.g. after having been kept
in a cold service van) should be left to warm to the surrounding
temperature before the plugs on the compressor connections
are removed. This will help prevent condensation from forming
in the oil and the compressor. Also, avoid opening the system
when any of the components or lines are cold.
NOTE: Release holding charge (release slowly to avoid
oil discharge) on new compressor to ensure that there
is no leak in seam or tubing. Then, reinstall rubber plug.
1. Disconnect electrical supply to refrigerator.
2. Remove compressor access panel.
3. Remove rail and condenser fan shroud screws.
4. Remove fan motor harness clamp located below heat
exchanger wiring harness cover.
5. Disconnect condenser fan motor multiconnector.
6. Pull compressor assembly straight out (See Figure E1).
7. Recover refrigerant by using EPA approved recovery
system.
8. Remove leads from compressor motor terminals.
9. Remove mounting clips and washers.
10. After refrigerant is completely recovered, cut suction
and discharge lines as close to compressor as
possible. Leave only enough tubing to pinch off and
seal defective compressor. Plug or tape any open
system tubing to avoid entrance of moisture and air
into system. Remove inoperable compressor and
transfer mounting parts to new compressor.