OPERATION & MAINTENANCE MANUAL SWE50E/SWE60E/SWE70E/SWE80E9/SWE100
4.5.3.5 Check A/C cooling medium level.
Warning
In case that cooling medium gets into
eyes or makes contact with hands, this
may cause blindness or freezing injury,
therefore do not contact cooling
medium directly.
Do not loosen any parts of cooling
medium piping.
Do not allow any naked flame to reach
the position with cooling medium
leakage.
If the cooling medium is insufficient in
A/C system, the cooling performance of air
conditioning will be bad.
If setting engine to idle at high speed,
and operating air conditioning to extra
refrigerating state, there must be small
amount of bubbles in inspection glasses
which is fixed on condenser reservoir.
There are bubbles flowing in cooling
medium (continuous bubble flowing)：
Low cooling medium level.
【Important】
If the engine runs at low cooling
medium level, this may cause damages
to compressor.
Bubbles indicate low cooling medium level,
please contact SUNWARD distributor to add
cooling medium.
Inspection during idle seasons
If the air conditioning system is kept
inactive for a long time, perform a
operation on cooler for 3-5 minutes every
month to lubricate each part of the
compressor.
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