Chery A15. Manual — part 143

When system pressure exceeds 220psi, high pressure switch closes and high-speed fan relay is

activated by earthing between pressure switch and air conditioner relay. Battery supplies

power to cooling fan motor through high-speed fan relay.

Section Four: Internal Circulation Electromagnetic Valve Circuit

I. Working Condition of Internal Circulation Electromagnetic Valve

Internal circulation switch is pressed down (please refer to circuit diagram in Section Five of

this Chapter).

II. Working Principles of Internal Circulation Electromagnetic Valve

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.

Press down internal circulation switch, battery supplies power to N63 internal circulation

electromagnetic valve through blower relay and internal circulation switch.

Section Five: Blower Circuit

I. Working Condition of Blower

Blower switch has four ranges, and blower speed has four levels accordingly.

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

V

1.0

4

3

2

5

6

30

A

B4

R/

SC

K

FS
9

10

A

FS
12

IM

MO

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

高开压关

鼓风机开关

鼓风机

电阻

30

15

X

31

31

鼓风
机电

机

内外循
环电磁

阀

发动机电脑8#

发动机电脑67#

鼓风机继电器 Blower

relay

内外循环电磁阀

Internal/external circulation electromagnetic
valve

空调开关

Air conditioner switch

空调压力高压开关

Air conditioning high-pressure switch

空调继电器

Air conditioner relay

红 Red

鼓风机开关 Blower

switch

兰 Blue

温度传感器 Temperature

sensor

黑 Black

发动机电脑 67#

Engine computer 67#

白 White

发动机电脑 8#

Engine computer 8#

绿 Green

鼓风机电阻 Blower

resistor 黄 Yellow

鼓风机电机 Blower

motor

棕 Brown

II. Working Principle of Blower

When blower switch is placed to range 1, pin 2 and pin 5 of blower switch are connected.

Battery supplies power to blower through blower switch and all four dropping resistors of

serially connected blower speed-regulating resistors to start blower working at the lowest

speed.

When bower switch is placed to range 2, pin 2 and pin 4 of blower switch are connected.

Battery supplies power to blower through blower switch and three dropping resistors of

serially connected blower speed-regulating resistors to start blower working at speed level 2.

When bower switch is placed to range 3, pin 2 and pin 3 of blower switch are connected.

Battery supplies power to blower through blower switch and two dropping resistors of serially

connected blower speed-regulating resistors to start blower working at speed level 3.

When bower switch is placed to range 4, air conditioner relay is activated. Battery supplies

power directly to blower through blower switch without passing through any dropping resistor

to start blower working at the highest speed.

Section Six: Air Conditioner Control Panel

1. Blower switch

2. Temperature control switch

3. Airflow distribution switch

4. A/C switch

5. Internal circulation switch

Section Seven: Air Conditioning Compressor

1. Driving Belt Position

1-Engine

2-Water pump/Power steering pump

3-Compressor

4-Idler

5-Crank shaft

6-Tensioner

2. Coolant Pipeline Diagram

Compressor

Condenser

Evaporator

Fan

Drying bottle/collector

Expansion valve

Section Eight: Air Conditioning System Overview