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On steep grades, turn the air conditioning off to avoid the possibility of the engine overheating.
●
During winter months or in periods when the air conditioning is not used regularly, run the air conditioning once every
month for a few minutes.
●
This will help circulate the lubricants and keep your system in peak operating condition.
Turning off air conditioner
When air conditioner is not used, place the fan switch to OFF position. When the vehicle is parked, set the button to
'Recirculation mode" to prevent dust from entering the vehicle.
Others
Use of air conditioner for long hours with the button placed at 'Recirculation mode' will contaminate the air inside the
vehicle. Place the button at "Fresh mode" once in a while.
Excessive cooling is not good for health. The cooling temperature best suit to your health is normally 5 to 6 degrees low
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er than the outside air temperature. (You will feel slightly cool when you enter the vehicle cooled at this temperature.)
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DE-HUMIDIFIED HEATING
For de-humidified heating:
●
Turn on the fan control switch.
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Tum on the air conditioner switch. The air conditioner indicator light should
come on at the same time.
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Set the air intake control to "Fresh".
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Set the air flow control to "Face".
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Adjust the fan control to the desired speed.
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For more rapid action, set the fan at one of the higher speeds.
●
Adjust the temperature control to provide the desired amount of warmth.
Operation Tips
●
If the interior of the caris hot when you first get in, open the windows for a
few minutes to expel the hot air.
●
When you are using the air conditioning system, keep all windows closed to
keep hot air out.
●
When moving slowly, as in heavy traffic, shift to a lower gear. This increases
engine speed, which in turn increases the speed of the air conditioning com
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pressor.
OWNER
’
S MANUAL
JAC HEAVY DUTY TRUCK
