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Refrigerant amount
No or few bubbles are seen on the
sight glass under engine idling, when
the refrigerant is sufficient. When the
refrigerant is not sufficient, not a few
bubbles are seen.
If the refrigerant is overcharged, it
shows high pressure than normal.
In this case, purse the refrigerant a lit-
tle to the specified amount.
Season check
1. Before season–off
Do not separate the air conditioner
in season–off.
Keep the air conditioner under
installation during season–off.
Keeping refrigerant is helpful for
protection of rust and oil consump-
tion for long service life.
2. Season–off
Operate once in a month and check
for cooling performance.(Operate
approx. 5 minutes)
Not being operated by thermostat
when inside–temperature is below
15°C.
Do operate again after the temper-
ature rises over 15°C by heating.
3. Season–in
Closely check as the check lists.
Naturally the refrigerant escapes as
time passing.
Refill refrigerant to the sufficient
amount.
insufficiency sufficiency
Sufficient amount is approx. 12ť0.5kg
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