Engine JAC HFC4DA1-2C. Manual - part 92

AT

AT

AT

AT Air

Air

Air

Air Conditioner

Conditioner

Conditioner

Conditioner

- 157 -

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

AT

AT

AT Air

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.

AT

AT

AT

AT Air

Air

Air

Air Conditioner

Conditioner

Conditioner

Conditioner

- 160 -

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