57
Fluid inspection lens is
clear with no bubble
when working, a few
bubbles appear at start
and in 10 seconds after
shut down.
Air outlet is cold,
condenser inlet is
very hot, condenser
outlet is hot or warm,
air intake duct is cold
with normal pressure
at both sides.
A few bubbles appear
during work
Too many bubbles
appear during work
Air outlet is not cold
enough, condenser
inlet is not hot
enough, condenser
outlet is like the
environment
temperature, air
intake duct is warm
and the pressure of
high pressure side is
very low.
Check,
repair and
fill
refrigerant
Fluid inspection lens is
clear with no bubble at
start, when working or
shut down.
Air outlet is not cold,
condenser inlet is not
hot, condenser outlet
is like environment
temperature, air
intake duct is warm
and the side pressure
is low.
No bubble at start and
after shut down, a few
bubbles appear when
working with long
strings of oil dripping
and oil stain
sometimes.
Note： The above mentioned outcomes all happen on hot days. Owing to the external conditions, etc,
sometimes it’s hard to judge the condition of fluid inspection lens, so pay attention to the high and side
pressure and fluid inspection lens at the same time when filling refrigerant.
(9) Cautions while disassembling the pipeline system
①. The joints disassembled from the pipelines must be sealed in time to make the inner system exposed
to air for a short time as possible, avoiding the wet air from entering the system.
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