Panasonic NR-B203G-S7, Service Manual

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7. ASSEMBLING THE COMPRESSOR AND THE DRYER
General Clause
a. It should be finished within 30 minutes.
When pipe purging no need
When pipe purging has need
b.
c. The Dryer just special for HFC-134a refrigerant only.
Assembling Compressor
1.
a
a
2.
3.
a.
b.
4.
5.
6.
7.
8.
Replacement Standard of Dryer
1.
2.
3.
Bend the capillary tube at an obtuse angle of about 120
o
along 15mm from the cut end before inserting the
tube into the dryer. Then insert the tube until it is stopped by the bend. This is to prevent the tube from going
into the dryer too far and breaking the filter placed inside. Also this insure that the tube goes into the dryer far
enough not to be clogged with the filler metal during brazing.
Insert the capillary tube ±15mm into the
dryer.
Break the package of dryer just before use.
This is to prevent dryer from absorbing
moisture in the air. If the package is bruise,
as air has leakage into the package, never use
the dryer in the package.
use dryer within the term of validity (which is
marked in the package).
Joint capillary tube, Mullion dryer pipe and Charge pipe (Dia. 4 mm) to Draye with brazing.
If there is no sound of discharging gas, never use
the compressor.
Take out the dryer from the package just before use.
Joint the suction pipe and compressor with brazing.
Note:
Set the compressor in the compressor room.
D joint must place in compreesor room at Cooling
unit.
From the process of removing compressor until the process of setting compressor and dryer (just
before vacuum pumping process).
From the time just after pipe cleaning is completed until the process of setting compressor and dryer
(just before vacuum pumping process).
If pipe are being kept open to air, moisture will go into the refrigerating unit and it may cause a
malfunction in the refrigerating unit again.
Note:
Joint the gascharge pipe with brazing.
Remove rubber caps of compressor just before
compressor is installed.
Joint the discharge pipe and compressor with brazing.
Check the sound of discharging gas from the
compressor when rubber caps are removed.
Shape and length of pipe must be suitable with
Discharge pipe.
Dryer
Discharge
Compressor
Joint Suction
Compressor
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