Chery A15. Manual — part 142

Chapter One: Air Conditioning System

Section One: Circuit Diagram of Air Conditioning System

Instructions

30 has no fuse, with positive pole directly connected to battery
15 has no fuse, with positive pole connected to ignition switch
X has no fuse, with positive pole connected to ignition switch and disconnected when
starting
Wire 31 is earthed.

棕/白

低速风扇
继电器

30A

红

2.5

红/黑

4.0

红/黑

2.5

30A

FS
25

黑/红
2.5

红

0.5

红

2.5

8/87

6/85

2/30

4/86

红/黑

2.5

棕

2.5

1

M

3

棕

1.5

20

A

WIP
ER

FS
8

A3

A2

E4

5

12
V

85

86
2

空调泵继

电器

1

30

87

3

FS
1

15

A

CO
MP

E8

TQ3/8

TQ2/11

红

2.5

2.5

红/兰

红/黑
1.5

1.5

8

67 2

1

J200

0

空调泵

发动机电脑

灰/白

0.5

棕/绿
1.0

绿/黄

1.0

棕
2.5

5

N23

1

2

E9

5

白/黑

1.0

兰

1.5

4

4

M

3

绿

2.5

1

黄/红

1.5

2

黑/红
2.5

白/黑
1.0

黑/红
2.5

绿/黄

0.5

棕
0.5

V2

N63

5

6

白/绿

1.0

1

白

0.5

2

黑/红

2.5

棕

0.5

3

4

2

1

黄/红

1.5

3

黑

2.5

8

2

1

白/绿

1.0

1

4

7

1.0

4

3

2

5

6

30
A

B4

R/
SC

K

FS
9

10
A

FS
12

IMM
O

E1
2

D1
3

D1
2

红

2.5

红/兰

2.5

棕

1.0

NR
0.5

85

12

V

86

鼓

风

机继电器

30

87

空调开关

空调继电器

温度

传感器

空调压力

开关

鼓风机开关

鼓风机

电阻

30

15

X

31

31

鼓风
机电

机

红/

白

2.5

6/85

J71

4/86

8/87

2/30

V8

2

棕

0.5

1

3

V7

M

黑/红

4.0

棕

2.5

红/白

2.5

红

4.0

红

0.5

红/

黑

2.5

FS
25

隔离继电器

内外循
环电磁

阀

高速风扇

继电器

离合器

4/86 2/30

6/85 8/87

散热
风扇

散热
风扇

鼓风机继电器 Blower

relay

内外循环电磁阀

Internal/external circulating
electromagnetic valve

空调泵继电器

Air conditioning pump relay

散热风扇 Cooling

fan

空调继电器

Air conditioner relay

空调泵离合器

Air conditioning pump clutch

空调开关

Air conditioner switch

发动机电脑 Engine

computer

鼓风机开关 Blower

switch

红 Red

温度传感器 Temperature

sensor

兰 Blue

空调压力开关

Air conditioning pressure switch

黑 Black

高速风扇继电器

High-speed fan relay

白 White

低速风扇继电器

Low-speed fan relay

绿 Green

隔离继电器 Isolating

relay

棕 Brown

鼓风机电阻 Blower

resistance

黄 Yellow

鼓风机电机 Blower

motor

灰 Gray

Section Two: Compressor Circuit

I. Working Conditions of Compressor

Air conditioning switch is pressed down (A/C switch);

Blower is working;

Cooling system pressure is open at low-pressure side;

Ambient temperature is above 0ºC;

Engine speed is over 600RPM.

棕/白

棕

1.5

20

A

WI

PER

FS

8

A3

A2

E4

5

12

V

85

86

2

空调泵继

电器

1

30

87

3

FS

1

15

A

CO

MP

E8

TQ3/8

TQ2/11

红

2.5

2.5

红/兰

红/黑
1.5

1.5

8

32

18

55 31

67

2058

2

9 57

46

1

J200

62

5
0

38

48

59

11

空调泵

发动机电脑

灰/白

0.5

30

15

X

31

31

高速风扇继电器85#

空调压力开关1#

低速风扇继电器85#

棕/白0.5

绿/白

1.5

灰/白0.5

低速风扇继电器 85#

Low-speed fan relay 85#

黑 Black

高速风扇继电器 85#

High-speed fan relay 85#

棕 Brown

空调压力开关 1#

Air conditioning pressure switch 1#

白 White

发动机电脑 Engine

computer

灰 Gray

红 Red

绿 Green

兰 Blue

II. Working Principle of Compressor

When ignition switch is turned on, air conditioning blower relay coil is powered by wire X

and the contact of air conditioning blower fan is closed.

When blower switch is placed at a position other than OFF, pin 5 of blower switch is

powered.

When air conditioner switch is pressed down, pin 2 and pin 1 are connected to activate air

conditioner relay.

Battery supplies power to engine computer through air conditioner relay, evaporator

temperature switch and low-pressure switch.

Engine computer processes to control opening/closing of air conditioning pump relay.

Battery supplies power through air conditioning pump relay to compressor electromagnetic

clutch for engagement.

Section Three: Cooling System Circuit

I. Working Conditions of Cooling Fan

Blower switch is placed at a range other than 0 with air conditioner switch closed and cooling

fan working at low speed.

Blower switch is placed at a range other than 0 with air conditioner switch closed,

high-pressure switch closed and cooling fan working at low speed.

30

15

X

31

高速风扇继电器

High-speed fan relay

发动机电脑 8#

Engine computer 8#

低速风扇继电器

Low-speed fan relay

红 Red

空调高压开关 3#

Air conditioning high-pressure switch 3#

黑 Black

隔离继电器 Isolating

relay

白 White

发动机电脑 1#

Engine computer 1

棕 Brown

II. Working Principle of Cooling Fan

When engine water temperature exceeds 98ºC, water temperature sensor sends signal to

engine computer, and engine computer activates low-speed fan relay. Battery supplies power

to fan motor through low-speed fan relay and fan motor speed-regulating resistor. When

engine water temperature exceeds 105ºC, water temperature sensor sends signal to engine

computer, and engine computer activates high-speed fan relay. Battery supplies power to fan

motor V7 through high-speed fan relay and fan motor V8 through isolating relay.

When A/C switch is pressed down, the blower is started, and blower switch supplies power to

air conditioner switch to activate air conditioner relay. Air conditioner relay sends earthing

signal to engine computer through evaporator temperature sensor and air conditioning

pressure switch, and engine computer activates low-speed fan relay. Battery supplies power to

fan motor through relay and fan motor speed-regulating resistor.