Engine JAC HFC4DA1-2C. Manual — part 93
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
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Instruction and Operation
Precautions
9.
Generally, dust covers are adopted for A/C
components, in order to avoid access of sewage,
dust and moisture. Dust covers should be removed
before operation and sealed after operation.
10.
During the reinstallation of A/C system after
removal, please apply refrigerant oil onto the
O-ring. As for screwed joints, install them by hand
and then use two wrenches for tightening. As for
the flanged joints, install nuts and bolts when
pushing the pipeline gently.
11.
During A/C
installation,
over
tightening
or
clamping of O-ring may cause refrigerant leakage,
so please operate as per specified torque.
12.
Hoses shall be free from distortion.
Moisture
Dust
First by hand and then with tools
Tighten to the specified torque
Don’t distort hose.
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 162 -
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Functional
Functional
Functional
Functional operation
operation
operation
operation
1.
“TO-FACE” mode
Air is adjusted when passing through system and
vented out through upper air vent. This mode is
applied to most of places using A/C.
2.
“TO-FACE/FEET” mode
Air is adjusted and vented out through upper air
vent and floor air vent. The air from floor air vent
is hotter than that from upper air vent. However,
when
the
temperature
knob
is
rotated
counterclockwise to the end (hottest) or clockwise
to the end (coldest), air temperature from two
different positions are the same.
3.
“TO-FEET” mode
Air is vented out through the bottom air vent.
4.
“TO-FEET” plus “DEFROST” mode
Air is vented out through the bottom air vent and a
little air is vented out through defroster air vent and
air vent of side window defroster.
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 163 -
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Functional
Functional
Functional
Functional operation
operation
operation
operation
5.
Defroster
Air is adjusted and vented out through defroster air
vent and a little air is vented out through side
window defroster. It is recommended to use this
mode only in foggy or icy weather.
6.
Internal/external circulation select button
Press this button and the indicator shall lighten,
indicating the internal circulation mode is applied;
press this button again and the external circulation
mode is selected.
7.
Front control panel air volume knob
Rotate the air volume knob shown in the right
figure to achieve perfect control of the air volume
of blower. Rotate leftwards, the air volume shall
decrease, and rightwards, the air volume shall
increase.
8.
A/C switch
Press this switch with the indicator on, indicating
the A/C system is in operation. Press this switch
again, and the A/C system is turned off.
If the fan knob is located at off position instead of
at certain position within speed setting range, the
A/C system cannot operate.
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 164 -
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Functional
Functional
Functional
Functional operation
operation
operation
operation
9.
Front control panel temperature control knob
Rotate the knob within the range shown in the
right figure, and the interior temperature can be
controlled within the indicated range.
10. Rear control panel cold/warm select knob
Rotate the knob within the red zone, the vented air
is warm air; rotate the knob within the blue zone,
the vented air is cold air.
11. Rear control panel air volume knob
Rotate the air volume knob shown in the right
figure to achieve perfect control of the air volume
of blower. Rotate leftwards, the air volume shall
decrease, and rightwards, the air volume shall
increase.
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