Nissan Maxima. Instruction — part 736
HAC-120
< SYSTEM DESCRIPTION >
[WITH MONOCHROME DISPLAY]
MODE DOOR CONTROL SYSTEM
Mode position can be selected instructionly by pressing the MODE
switch or the DEF switch on the A/C switch assembly. Pressing the
AUTO switch allows automatic control by the A/C auto amp. During
the automatic control of a mode position, a mode door position
(VENT, B/L, FOOT, or D/F) is selected based on a target air mix door
opening angle and the sunload sensor, calculated by the A/C auto
amp. In addition, the D/F is selected to prevent windshield fogging
only when ambient temperature is extremely low.
AWIIA1183GB
AIR MIX DOOR CONTROL SYSTEM
HAC-121
< SYSTEM DESCRIPTION >
[WITH MONOCHROME DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR MIX DOOR CONTROL SYSTEM
System Diagram
INFOID:0000000010051117
System Description
INFOID:0000000010051118
The air mix doors are automatically controlled so that in-vehicle temperature is maintained at a predetermined
value by the temperature setting, ambient temperature, intake temperature and amount of sunload.
SYSTEM OPERATION
• The A/C auto amp. receives data from each of the sensors.
• The A/C auto amp. sends air mix door, the mode door and the intake door opening angle data to the air mix
door motor LCU(s), the mode door motor LCU and the intake door motor LCU.
• The air mix door motor(s), the mode door motor and the intake door motor read their respective signals
according to the address signal. Opening angle indication signals received from the A/C auto amp. and each
of the motor position sensors, are compared by the LCUs in each door motor with the existing decision and
opening angles.
• Next, HOT/COLD, DEF/VENT or FRE/REC operation is selected. The newly selected data is returned to the
A/C auto amp.
Door Motor Circuit
Air Mix Door Control Specification
AWIIA1122GB
AWIIA1066GB
HAC-122
< SYSTEM DESCRIPTION >
[WITH MONOCHROME DISPLAY]
AIR MIX DOOR CONTROL SYSTEM
When ignition switch is ON, the A/C auto amp. continuously and
automatically controls temperatures, regardless of air conditioner
operational condition. When setting a target temperature with the
temperature control switch, the A/C auto amp. corrects the set tem-
perature and decides a target air mix door opening angle. The A/C
auto amp. controls the air mix door, according to the target air mix
door opening angle and the current air mix door opening angle,
keeping an optimum air mix door opening angle. When the tempera-
ture is set at 18
°C (60°F), air mix door is set on full-cold, and when
the temperature is set at 32
°C (90°F), it is set to full-hot.
JPIIA0633GB
INTAKE DOOR CONTROL SYSTEM
HAC-123
< SYSTEM DESCRIPTION >
[WITH MONOCHROME DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
INTAKE DOOR CONTROL SYSTEM
System Diagram
INFOID:0000000010051119
System Description
INFOID:0000000010051120
The intake doors are automatically controlled by the temperature setting, ambient temperature, in-vehicle tem-
perature, intake temperature, amount of sunload and ON/OFF operation of the A/C compressor.
SYSTEM OPERATION
The intake door control judges intake door position based on the ambient temperature, the intake air tempera-
ture and the in-vehicle temperature. When in shifting mode position D/F, if the DEF or OFF switches are
pressed, or when the A/C switch is OFF, the A/C auto amp. sets the intake door to the FRE position.
Door Motor Circuit
AWIIA1123GB
AWIIA1066GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст