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3- Handling instructions
Oil return operation
Compressor oil mixed with refrigerant is circulating
in the air conditioning system.
Perform the oil return operation to return this oil to
the compressor before removing components from
the system.
1. Open the doors and windows and operate the
blower motor at maximum speed.
2. Operate the vehicle engine at idling during at
least 20 minutes.
Note: The maximum amount of oil cannot be
recovered at higher speeds. This operation also
requires a warm ambient temperature.
Oil handling
Oil specification
Use only ZXL 100PG (DH-PS) or POE oil.
Handling precautions
1. The oil must be free from dust, metal filings,
etc.
2. Do not mix oils.
3. The moisture content must not exceed 1,000
ppm. (PAG oil only)
4. The oil easily absorbs moisture when the
container is open. Therefore always seal the
container immediately after use.
Oil quantity inspection
There is no particular need for frequent inspection
or replacement, although it is recommended to
check operating refrigerent pressures and oil levels
at the start of the season.
Please replace the refrigerant and restore the
system oil and refrigerant charge to factory
specifications if:
• the AC system is opened for repair or replacement
of any component (e.g.: evaporator, condenser
or receiver drier)
• any loss of charge - refrigerant or oil - is
detected.
Oil level can be read through the sight glass of he
compressor (see on the left).
As long as it remains within the range of vision
through the sight glass, the oil quantity is sufficient