SUNWARD SWE90UF-2PB - Page 100

SWE90UF-2PB Operation & Maintenance Manual
91
Table 3
Refrigerant
filling
amount
Fluid inspection lens
Other conditions
Remark
photos/figures
Condition
description
The
moment
of start
Working
After
shut-down
Too much
Fluid inspection lens
is clear with no
bubbles at the
moment of start,
working or after
shut-down for 30
seconds.
Air outlet is not cold
enough, condenser
inlet is very hot and
the condenser
outlet is like the
environment
temperature, the
pressure at both
sides is high
(especially the high
pressure side)
Check and
release
the
excessive
refrigerant
Slightly
much
Fluid inspection lens
is clear with no
bubbles, bubble
appears at start and
10 seconds after
shut-down.
no need
to check
and repair
Proper
amount
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.
Slightly
insufficient
A few bubbles
appear during work