Manual A/C System - Chery A21 2005 Service Manual

Manual A/C System

30
15
ACC1
ACC2
31
IL LU M
T O ECU75#
TO ECU 60#
A/ C
p res sure
Switch
ECU /E
A/C press ure S witch
Y/G
A/C 7
A5 A3 A7 A10
A/C S witch
A9 A12 A14 A13 A6 A15 A2
E4 E 2
D 1 D3 D6 D2 D5
-
+
-
+
In tern al&ext ernal Temperature Control
Cir culation c ont rol Mot or
Motor
Figure13-1 A ir Conditioning System Cir cuit Diagram
2 6
F7
FB7
A/C
5A
15th line power fuse
Fuse box /G/ 20#
R/L
IP1/B6
B W R
Front Eng ine Compartment Fuse Box
A/C 4 A/ C 6 A/C 12
A 11 A20
B5 B 6
B1
A18 A19 A 4 A8 A1
B3 B2 B4
C1 C3 C6 C2 C5
-
+
Mode control Motor
Mode Con trol Motor
Temper ature Control Motor
Manual A/C System Circu it Analyse：
The manual A/ C is shown as figure13-1. When the ignition switch is at
the position of ON, the ACC1 and the 15th line get electricity.
The 15th line
A/C
The ACC1 line supplies power to t he blower relay coil; the blower
Blower fuse
F 13
FB13
relay coil g et electricity and the contact closed, the voltage of the 30th
30A
line→FB13→blower relay contact point→blower motor→the 2nd pin of
Bl ower
b lower peed djust ing esistance s
Relay
The two ends o f blower motor and h igh speed relay cont act point （the
Fuse bos /L/14#
3rd、4th ） parallel connected, the high speed relay coil （ the 2nd p in）
IP1/A4
connect to the B1 pi n of A/C c ontroller, when the high speed relay coi l get
A/C 11
electricity, the conta ct
relay coil →
Gr ound
run in high speed .
Br B
1 3
The 3 rd pin of t he b
H igh
+
sp ee d
the B4 pi n of A/C controlle r, the 1s t pin of b
Rela y Blower
2 4 r esistance
-
b lower peed djust ing s
controller, the running speed of the blower mot or is controlled by A/C
controller.
2
The A9、A12 pin of A/C controller
circulation control motor, the control pa nel drive the circulation wind door
connecting bar、shi ft lever by controlling the inner/outer circulation servo
R1
motor so as to drive the movement of the large、small wind door and realize
3
the control of inner/o uter circulation wind.
R2
The A13、A14 pin of A/C controller
1
control mo tor, the c ontrol panel drive t he conne cting bar、 shift lever of
R3
temperature adjusti ng control mechani sm by controlling t he blend door
4
servo moto r so as to drive the movement of the bl end door and realize the
mixture of different r atio of air and gas.
Blowe r spe ed
The A18、 A1 9 pin of A/C contr oller
adj usti ng r esistance
control mo tor, the control panel drive the connecting bar、 shift lever of
wind direc tion adjusting control mechan ism by co ntrolling the mode wind
door servo motor, dif ferent shif t lever control the open and cl ose of diffe rent
wind door and thereb y realize t he control of air.
The A3 pin o f A/C controller is
Switch .
supplies power to the A20 pin of A/C controller .
a r .
closed . The volta ge of the 3 0th line
blower motor → connect to ground. Then the blo wer motor will
lower s peed djusting e sistance a r
lower peed
is connec tted to the B2 pin of the A/C controller, the 4th pin of
a r esist ance are connectted to the B3 pin of the A/C
are connectted
are connectted
are connectted
connectt ed to the A/C Pres sure
→ FB13 bl ower →
is connectt ed to
s a djusting
to the inner/o uter
to the cool/w arm
to the mode