Nissan Quest E52. Instruction — part 759
HAC-166
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
FRONT MANUAL AIR CONDITIONING SYSTEM : Circuit Diagram
INFOID:0000000009652630
REAR MANUAL AIR CONDITIONING SYSTEM
JMIIA1865GB
SYSTEM
HAC-167
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
REAR MANUAL AIR CONDITIONING SYSTEM : System Description
INFOID:0000000009652631
SYSTEM DIAGRAM
DESCRIPTION
• Rear instruction air conditioning system is controlled by each function of A/C amp.
• Each operation of rear manual air conditioning can be controlled by front A/C control (built-in A/C amp.) and
rear A/C control.
CONTROL BY A/C AMP.
•
HAC-167, "REAR MANUAL AIR CONDITIONING SYSTEM : Air Flow Control"
•
HAC-168, "REAR MANUAL AIR CONDITIONING SYSTEM : Door Control"
REAR MANUAL AIR CONDITIONING SYSTEM : Air Flow Control
INFOID:0000000009652632
DESCRIPTION
• A/C amp. changes duty ratio of rear blower motor control signal to control air flow continuously. When air
flow is increased, duty ratio of rear blower motor control signal gradually increases to prevent a sudden
increase in air flow.
• In addition to instruction control, air flow control is compose of fan speed control at door motor operation.
FAN SPEED CONTROL AT DOOR MOTOR OPERATION
When rear mode door motor is activated while air flow is more than the specified value, A/C amp. reduces
temporarily fan speed so that rear mode door moves smoothly.
JMIIA1790GB
HAC-168
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
REAR MANUAL AIR CONDITIONING SYSTEM : Door Control
INFOID:0000000009652633
DOOR MOTOR CONTROL
• LCU (Local Control Unit) is built into each door motor. And detects door position by PBR (Potentio Balance
Resistor).
• A/C amp. communicates with each LCU via communication line. And receives each door position feedback
signal from each LCU.
• Each LCU controls each door to the appropriate position depending on the control signal from A/C amp.
• Each LCU transmits the signal of door movement completion to A/C amp., when the door movement is com-
pleted.
SWITCHES AND THEIR CONTROL FUNCTION
JMIIA1868GB
1.
Rear blower motor
2.
Rear evaporator
3.
Rear air mix door
4.
Rear heater core
5.
Rear mode door
Recirculation air
Discharge air
Rear ventilator
Rear foot
JMIIA1008ZZ
SYSTEM
HAC-169
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR DISTRIBUTION
REAR MANUAL AIR CONDITIONING SYSTEM : Circuit Diagram
INFOID:0000000009652634
Switch position
Door position
Rear mode door
Rear air mix door
MODE switch
C
—
D
E
Temperature control switch (front A/C control) or temperature
control switch (rear A/C control)
Full cold
—
A
Full hot
B
ON·OFF switch (front A/C control)
OFF
E
—
OFF switch (rear A/C control)
Discharge air flow
Mode position
Air outlet/distribution
Rear ventilator
Rear foot
100%
—
62%
38%
—
100%
JMIIA1866GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст