Electrolux EILFU17GS, Техническое и сервисное руководство

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4-4
R Re effrriig ge erra attiio on n S Sy ys stte em m
L Lo ow w//H Hiig gh h S Siid de e L Le ea ak k o orr U Un nd de errc ch ha arrg ge e
A loss of refrigerant can result in any of the
following:
1. Excessive or continuous compressor
operation.
2. Above normal freezer compartment
temperature.
3. A partially frosted evaporator (depending on
amount of refrigerant loss).
4. Below normal freezer compartment
temperature.
5. Low suction pressure (vacuum).
6. Low wattage.
The condenser will be “warm to cool”, depending
on the amount of refrigerant lost.
In the case of a low side refrigerant leak resulting
in complete loss of refrigerant, the compressor will
run but will not refrigerate. Suction pressure will
drop below atmospheric pressure and air and
moisture will be drawn into the system saturating
the filter drier.
If there is reason to believe the system has
operated for a considerable length of time with no
refrigerant and the leak occurred in the low side of
the system, excessive amounts of moisture may
have entered the system. In such cases the two
stage service Dryer Filter part number 5303918288
and vacuum procedure listed under Refrigerant
Leaks need to be followed to prevent repetitive
service.
If a slight undercharge of refrigerant is indicated
and no leak can be found after a thorough leak
test, the charge can be corrected without changing
the compressor.
If a high side leak is located and some refrigerant
remains in the system it is not necessary to
change the compressor.
T Te es sttiin ng g ffo orr R Re effrriig ge erra an ntt L Le ea ak ks s
If the system is diagnosed as short of refrigerant
and the system has not been recently opened,
there is probably a leak in the system. Adding
refrigerant without first locating and repairing the
leak or replacing the component will not
permanently correct the difficulty. The leak must be
found. Sufficient refrigerant may have escaped to
make it impossible to leak test effectively. In such
cases, add a ¼” line piercing valve to the
compressor process tube. Add sufficient
refrigerant vapor to increase the pressure to 40 to
50 lb. per sq. in. Check the low side for leaks.
Run the compressor 2 or 3 minutes and check the
high side for leaks. Recover refrigerant using an
EPA approved recovery system.
C Co om mp prre es ss so orr R Re ep plla ac ce em me en ntt
To check for contamination, obtain oil sample from
old compressor.
1. If the oil has burned odor, but no color change
or residue — follow instructions on page 4-6
“Installing A New Compressor”.
2. If oil has a burned odor and a sugar or gritty
feel as well as showing signs of contamination
(dark color), follow instructions in next section,
To Flush The System. Remove as much of
contamination as possible from system before
installing new compressor and filter-drier.
NOTE
T Th he e lliin ne e p piie errc ciin ng g v va allv ve e ((c clla am mp p--o on n tty yp pe e)) s sh ho ou ulld d
b be e u us se ed d ffo orr tte es stt p pu urrp po os se es s o on nlly y.. IItt m mu us stt b be e
rre em mo ov ve ed d ffrro om m s sy ys stte em m a afftte err iitt h ha as s s se errv ve ed d iitts s
p pu urrp po os se e..
NOTE
IItt iis s rre ec co om mm me en nd de ed d tth ha att s sy ys stte em m b be e ffllu us sh he ed d w wiitth h
d drry y N Niittrro og ge en n.. H Ho ow we ev ve err,, iiff rre effrriig ge erra an ntt iis s u us se ed d tto o
ffllu us sh h tth he e s sy ys stte em m y yo ou u m mu us stt llo oo ok k a att tth he e s se erriia all
p plla atte e tto o s se ee e w wh ha att tty yp pe e o off rre effrriig ge erra an ntt iis s u us se ed d iin n
tth he e s sy ys stte em m.. T Th hiis s iis s tth he e o on nlly y rre effrriig ge erra an ntt tth ha att c ca an n
b be e u us se ed d tto o ffllu us sh h tth he e s sy ys stte em m a an nd d iitt m mu us stt b be e
rre ec co ov ve erre ed d..
CAUTION
N NE EV VE ER R iin ns stta allll a a n ne ew w c co om mp prre es ss so orr w wiitth ho ou utt ffiirrs stt
c ch he ec ck kiin ng g ffo orr p po os ss siib blle e s sy ys stte em m c co on ntta am miin na attiio on n..