.
OPERATION
EXPLANATION OF COMPONENTS
CHECKS DURING OFF-SEASON
Even during the off-season, run the compressor at low speed for several minutes once a week to prevent the loss
of the oil film on the lubricated parts of the compressor.
(Run the engine at low speed and set to a mid-range temperature when carrying out this operation.)
REMARK
When the ambient temperature is low, if the compressor is suddenly run at high speed, it may cause failure of the
compressor. Note that the system is set so that the compressor will not run when the cooler switch is turned on, if
the ambient temperature is less than 2 to 6.5°C (35.6 to 43.7°F).
PROCEDURE FOR REPLACING RECEIVER
Replace the receiver once every 2 years.
After replacing the receiver, add compressor oil. Turn the receiver at an angle and measure the oil remaining inside
the receiver, then add the same amount of oil (Denso Oil 6) to fill the receiver.
REMARK
The replacement interval may become shorter depending on the conditions during use.
If the receiver is used when the moisture absorption limit of the desiccant has been exceeded, the refrigerant
circuit may become blocked and cause the compressor to break down.
PRECAUTIONS WHEN REPLACING RECEIVER
If the receiver is left for more than 15 minutes with the blind cover removed, the moisture in the air will be
absorbed, and this will reduce the life of the desiccant. If you remove the blind cover, connect the piping quickly,
evacuate the system and fill with refrigerant.
When removing the refrigerant from the refrigerant circuit, release it gradually from the low pressure side to
prevent oil from flowing out.
CHECK COMPRESSOR BELT TENSION AND REFRIGERANT (GAS) LEVEL
If the compressor belt is loose, or the refrigerant level is low, cooling is not carried out efficiently.
For details, see "WHEN REQUIRED (PAGE 4-20)".
CLEANING AIR FILTER
If the air filter for the FRESH or RECIRC air intake becomes clogged, the cooling or heating capacity will drop.
To prevent this, clean the air filter with compressed air once a week.
For details of the cleaning method, see "WHEN REQUIRED (PAGE 4-20)".
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