Engine JAC HFC4DA1-2C. Service manual — part 92
AT
AT
AT
AT Air
Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
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Air
Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner (A/C)
(A/C)
(A/C)
(A/C)
Applied models: SUNRAY products manufactured by JAC
Subject
Page
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Air Conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..159
Functional operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 162
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Air Conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Operating principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Air distribution system introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 167
Leak test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..168
A/C system performance testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169
Refrigerant recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
A/C System Performance Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..174
System Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Removal/Installation
Removal/Installation
Removal/Installation
Removal/Installation
Air Conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Removal of front A/C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Removal of top evaporator tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..191
Removal of front condenser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Removal of bottom condenser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Removal of heater water tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Removal of after motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...198
Removal of compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 202
Installation of compressor assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...204
Removal of front A/C panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Removal of rear A/C panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Specification
Specification
Specification
Specification
Air Conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Basic parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207
AT
AT
AT
AT Air
Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 158 -
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
A/C
A/C
A/C
A/C system
system
system
system
SUNRAY adopts dual A/C system, with the front and rear A/C controlled independently. In this system, the front and
rear A/C use independent condenser and evaporator but share the same compressor.
A/C
A/C
A/C
A/C system
system
system
system schematic
schematic
schematic
schematic diagram:
diagram:
diagram:
diagram:
1. Evaporator
2. Expansion valve
3. Compressor
4. Condenser
5. Fluid reservoir
AT
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
- 159 -
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Precautions
Precautions
Precautions
Precautions
1.
Refrigerant is of low freezing point and strong
volatility, so please wear gloves and goggles in
order to avoid frostbite, blindness and other
phenomena caused by its contact with skin.
2.
In case of the refrigerant gets into your eyes or
having contact with skin, please flush the affected
areas with fresh water and go to the doctor for
help. Please don’t rub your eyes with hand or
handkerchief.
3.
The handling of refrigerant shall be performed in
well-ventilated areas.
Although
refrigerant
is
innoxious,
abundant
exhaust of refrigerant into enclosed space may lead
to hypoxia.
4.
During the handling of refrigerant, the ambient
environment shall be free from water and foreign
matters such as dust, for which may cause damage
to A/C system when flowing into. Therefore,
special attention must be paid.
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Air
Air
Air Conditioner
Conditioner
Conditioner
Conditioner
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Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Precautions
Precautions
Precautions
Precautions
5.
R-134a shall be adopted as refrigerant.
Use of other kinds of refrigerant may bring
negative effect to system components.
6.
R-134a refrigerant
and R-12
refrigerant
are
incompatible, so even little amount of R-12
refrigerant is not allowed to be mixed into R-134a
refrigerant.
7.
When handling refrigerant, please note that the
surroundings must be free from any tinder or
inflammable, for the exposure of refrigerant
reservoir to heat source shall lead to explosion.
8.
R134a refrigerant container is under high pressure
status, so please don’t place it under high
temperature condition and the ambient temperature
for storage should be below 52℃.
Keep Away From
Inflammables
Keep Away From Heat
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