Electrolux R134A - Additional System Information; Leak Detector; Driers;Filters; Limit Time of Exposure

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NOTE:NOTE:
NOTE:NOTE:
NOTE:
Robinair equipment is listed as aRobinair equipment is listed as a
Robinair equipment is listed as aRobinair equipment is listed as a
Robinair equipment is listed as a
reference onlyreference only
reference onlyreference only
reference only
, equivalent substitutes may, equivalent substitutes may
, equivalent substitutes may, equivalent substitutes may
, equivalent substitutes may
be used. Additional tools may be requiredbe used. Additional tools may be required
be used. Additional tools may be requiredbe used. Additional tools may be required
be used. Additional tools may be required
for special situations.for special situations.
for special situations.for special situations.
for special situations.
LEAK DETECTOR -LEAK DETECTOR -
LEAK DETECTOR -LEAK DETECTOR -
LEAK DETECTOR - Leak detectors compat-
ible with R134A should be used. Due to the
possibility of contaminating the sealed sys-
tem with moisture, using soap bubbles can
cause problems, especially if drawn into a
low side leak. To minimize the possibility
of moisture entering the system, the use of
wet rags or towels to cool a brazed joint
should be avoided.
DRIERS/FILDRIERS/FIL
DRIERS/FILDRIERS/FIL
DRIERS/FIL
TERS -TERS -
TERS -TERS -
TERS - Any time a sealed sys-
tem repair is made, the drier must be re-
placed. The drier on R134A systems is dif-
ferent, using a new desiccant which pro-
vides system compatibility and proper
moisture absorption. Use of the old type
drier on new R134A systems would result
in a repeat sealed system failure. Part num-
ber
13900-113900-1
13900-113900-1
13900-1 is the drier which must be used
on R134A systems. This drier may also be
used on R12 systems and will supersede
the 13900 drier, but be sure that the older
13900 is
NOTNOT
NOTNOT
NOT used on the R134A system.
Additionally, "unsoldering" a joint, rather
than the score and break method, is not ac-
ceptable due to the possibility of chemical
and moisture contamination. Always cut the
drier out of the system-never apply heat.
LIMIT TIME OF EXPOSURE TO THELIMIT TIME OF EXPOSURE TO THE
LIMIT TIME OF EXPOSURE TO THELIMIT TIME OF EXPOSURE TO THE
LIMIT TIME OF EXPOSURE TO THE
AA
AA
A
TMOSPHERE - TMOSPHERE -
TMOSPHERE - TMOSPHERE -
TMOSPHERE - Whenever a sealed sys-
tem is repaired, do not expose an open line
to the atmosphere for more than 15 min-
utes. Replacement components will come
sealed by either brazing (drier) or plugs
(compressor). Do not open the new drier
to the atmosphere until you are ready to
braze it into place. Before installing a new
compressor, pull a plug to be sure the unit
is still pressurized. If no pressure exists, do
not use the compressor. If pressure exists,
reinstall the plug to ensure non-contamina-
tion during the service procedure.
LOW SIDE LEAKSLOW SIDE LEAKS
LOW SIDE LEAKSLOW SIDE LEAKS
LOW SIDE LEAKS
- -
- -
- In the event of a low
side leak, moisture has probably been
drawn into the system. The
compressorcompressor
compressorcompressor
compressor
must be replaced must be replaced
must be replaced must be replaced
must be replaced in addition to the normal
repair. Also, a system flush must be made
before proceeding with the sweep charge
and final charge.
PLUGGED CAPILLARY TUBE - PLUGGED CAPILLARY TUBE -
PLUGGED CAPILLARY TUBE - PLUGGED CAPILLARY TUBE -
PLUGGED CAPILLARY TUBE - Moisture or
other contaminants in the R134A system can
cause the formation of gel-like or salt-type
deposits within the system. This causes
capillary tube restrictions which may not be
removed by the flush procedure detailed
later. If the restriction cannot be removed
from the capillary tube, the heat exchanger,
evaporator and compressor must be
replaced.
ADDITIONAL SYSTEMADDITIONAL SYSTEM
ADDITIONAL SYSTEMADDITIONAL SYSTEM
ADDITIONAL SYSTEM
INFORMAINFORMA
INFORMAINFORMA
INFORMA
TIONTION
TIONTION
TION
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
Always wear eye protection andAlways wear eye protection and
Always wear eye protection andAlways wear eye protection and
Always wear eye protection and
protective clothing when handlingprotective clothing when handling
protective clothing when handlingprotective clothing when handling
protective clothing when handling
any refrigerants.any refrigerants.
any refrigerants.any refrigerants.
any refrigerants.