DIAGNOSIS 1
Discharge refrigerant:
1) Use pliers to cut off
charging tube.
2) Discharge all
refrigerant toward the
exhaust vent.
Unscrew terminal cover.
Remove terminal cover.
Disconnect all terminals.
Unscrew earthing wire.
Unscrew nut on
compressor.
Braze the joints of
suction and exhaust
pipes.
Re-braze a copper
tube onto compressor
processing tube.
To get more details on
brazing requirements, go to Annex b1
Install quick connector
onto re-brazed pipe.
Clean paint off brazedĀ joint of drying-filter.
Cut off drying-filter.
Braze on a new
drying-filter.
Inject nitrogen (1.57Mpa)
through quick connector
into pipe for at least
3 min to blow remaining
refrigerant away.
Add quick connector
onto processing pipe of
drying-filter.
Perform leakage test on
brazed joints of dryingfilter
and compressor
processing pipe.
Vacuum and recharge.
Block processing pipe
twice with locking pliers.
Leave locked pliers
attached to second
block and shake to cut
off the remaining pipe.
Braze the ends and
remove the pliers.