Qashqai J11. Heater & Air conditioning Control System — part 10
COMPONENT PARTS
HAC-145
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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PTC HEATER CONTROL SYSTEM : Component Parts Location
INFOID:0000000010499399
Right side of A/C unit assembly
JMIIA3547ZZ
No.
Component
Function
Ambient sensor
PTC relay-1/2/3
PTC relay is controlled by BCM, and supplies power supply to PTC heater.
HAC-146
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Intake Sensor
INFOID:0000000010432486
Intake sensor measures evaporator fin temperature. The sensor
uses a thermistor which is sensitive to the change in temperature.
The electrical resistance of the thermistor decreases as temperature
increases.
A/C UNIT ASSEMBLY : Air Mix Door Motor
INFOID:0000000010432487
DESCRIPTION
• The step motor system is adopted for air mix door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position.
• Rotation of motor is transmitted to air mix door by link and lever, then air flow temperature is switched.
AIR MIX DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
ECM
ECM transmits engine speed signal, engine coolant temperature signal,
cooling fan speed request signal, and electrical power cut freeze signal to
BCM via CAN communication line.
Refer to
ECH-13, "Component Parts Location"
(HR engine models),
25, "ENGINE CONTROL SYSTEM : Component Parts Location"
(MR16DDT engine models),
ECM-627, "ENGINE CONTROL SYSTEM :
(MR20DD engine models),
(K9K engine models) or
(R9M engine models) for detailed installation location.
Combination meter
Combination meter transmits ambient temperature signal to BCM via CAN
communication line.
BCM
BCM receives each signals, and controls PTC relay.
BCM transmits idle up signal to ECM according to electrical load condition.
Refer to
BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"
for detailed installation location.
PTC heater
HAC-149, "A/C UNIT ASSEMBLY : PTC Heater"
Blower motor
HAC-148, "A/C UNIT ASSEMBLY : Blower Motor"
No.
Component
Function
JSIIA1630GB
COMPONENT PARTS
HAC-147
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Mode Door Motor
INFOID:0000000010432489
DESCRIPTION
• The step motor system is adopted for mode door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position.
• Rotation of motor is transmitted to mode door (center ventilator and defroster door, sub defroster door, side
ventilator door, and foot door) by link, rod, and lever, then air outlet is switched.
MODE DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000010432490
DESCRIPTION
• The step motor system is adopted for intake door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position.
• Rotation of motor is transmitted to intake door by lever, then air inlet is switched.
INTAKE DOOR MOTOR (DRIVER SIDE) DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
JMIIA3574GB
JZIIA0033GB
HAC-148
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000010432491
• Brush motor, that rotates coil while brush functions as contact
points, is adopted for blower motor.
• Rotation speed changes according to voltage from power transis-
tor.
A/C UNIT ASSEMBLY : Fan Control Amp.
INFOID:0000000010499376
• Fan control amp., that uses MOS field effect transistor, is adopted
for blower motor speed control.
NOTE:
MOS field effect transistor is a transistor for which the gate portion
is composed of a metal electrode on an oxide layer of semiconduc-
tor. Field effect transistor is controlled by voltage, while ordinary
transistor is controlled by current. Electrode of field effect transistor
is called source, drain, or gate, while electrode of ordinary transis-
tor is called emitter, collector, or base.
• Fan control amp. continuously controls voltage to blower motor,
according to gate voltage from A/C amp.
• This power transistor does not require a HI relay even when the
maximum voltage is applied to blower motor at HI status, because voltage drop is nominal.
JMIIA3565GB
JMIIA3336ZZ
JMIIA0793GB
JMIIA1317ZZ
COMPONENT PARTS
HAC-149
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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A/C UNIT ASSEMBLY : PTC Heater
INFOID:0000000010521000
• PTC heater is installed on passenger lower side of A/C unit assembly.
• Heat element is heated and air flow temperature is increased by
power supply from PTC relay.
COMPRESSOR
COMPRESSOR : Magnet Clutch
INFOID:0000000010503101
DESCRIPTION
Compressor is driven by the magnet clutch which is magnetized by electric power supply.
STRUCTURE AND OPERATION
• Magnet clutch consists of pulley, clutch disc, and field coil.
- Pulley is connected with crankshaft pulley of engine via drive belt
and is always rotated while engine is running.
- Clutch disc is connected with drive shaft of compressor.
- Field coil, which becomes a strong electric magnet when electricity
is supplied, strongly pulls clutch disc and presses it to pulley.
• When A/C relay integrated in IPDM E/R turns ON, electricity is
supplied to field coil, clutch disc is presses to pulley, and engine
rotational movement is transmitted from crankshaft pulley
⇒
drive
belt
⇒
pulley
⇒
clutch disc
⇒
drive shaft. Compressor is operated.
When A/C relay turns OFF, electricity is not supplied to field coil,
and clutch disc is released from pulley. Compressor is not oper-
ated.
COMPRESSOR : ECV (Electrical Control Valve)
INFOID:0000000010503102
• ECV (Electrical Control Valve) is integrated in the compressor.
IPDM E/R receives the ECV control signal from A/C amp. via CAN
communication, and ECV is controlled according to the control sig-
nal transmitted from IPDM E/R.
• ECV is controlled according to the control signal transmitted from
IPDM E/R.
The control signal transmitted by IPDM E/R is controlled according
to the ECV control signal transmitted from A/C amp. via CAN com-
munication.
• ECV varies the air pressure balance in the left and right air spaces
that are divided by the swash plate in order to change the angle of
the swash plate inside the compressor.
By changing the swash plate angle, it changes the piston stroke and controls the refrigerant discharge
amount.
JMIIA2397ZZ
JMIIA1767GB
JMIIA3566GB
HAC-150
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
A/C Control (A/C Amp.)
INFOID:0000000010499383
A/C control (A/C amp.) controls A/C by calculations based on signals
transmitted from each sensor and switch.
A/C control (A/C amp.) includes a self-diagnosis function. Diagnosis
of the manual air conditioning system can be performed quickly.
Ambient Sensor
INFOID:0000000010503107
Ambient sensor measures ambient air temperature. The sensor
uses a thermistor which is sensitive to the change in temperature.
The electrical resistance of the thermistor decreases as temperature
increases.
Refrigerant Pressure Sensor
INFOID:0000000010499385
DESCRIPTION
• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it
to ECM.
• ECM operates cooler cycle protection and cooling fan speed control according to voltage value that is input.
STRUCTURE AND OPERATION
• The refrigerant pressure sensor is a capacitance type sensor. It consists of a pressure detection area and a
signal processing area.
• The pressure detection area, which is a variable capacity condenser, changes internal static capacitance
according to pressure force.
• The signal processing area detects the static capacitance of the pressure detection area, converts the static
capacitance into a voltage value, and transmits the voltage value to ECM.
JMIIA3575ZZ
JMIIA1719GB
PBIB2657E
SYSTEM
HAC-151
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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SYSTEM
MANUAL AIR CONDITIONING SYSTEM
MANUAL AIR CONDITIONING SYSTEM : System Description
INFOID:0000000010432501
SYSTEM DIAGRAM
DESCRIPTION
• Automatic air conditioning system is controlled by each function of A/C amp.,ECM and IPDM E/R.
• Each operation of air conditioning system can be controlled by A/C control (built-in A/C amp.).
• A/C control switch indicator is turned ON/OFF by air conditioning system operation condition.
CONTROL BY A/C AMP.
•
HAC-152, "MANUAL AIR CONDITIONING SYSTEM : Air Inlet Control"
•
HAC-152, "MANUAL AIR CONDITIONING SYSTEM : Compressor Control"
•
HAC-245, "MANUAL HEATER SYSTEM : Door Control"
•
HAC-157, "MANUAL AIR CONDITIONING SYSTEM : Cooling Fan Control"
•
HAC-158, "MANUAL AIR CONDITIONING SYSTEM : Door Motor Starting Position Reset Control"
• Correction for input value
Ambient temperature correction
- A/C amp. inputs the temperature detected by ambient sensor as the ambient temperature.
- A/C amp. performs the correction of the temperature detected by ambient sensor for air conditioning control.
- A/C amp. selects and uses the initial value of ambient temperature data depending on the engine coolant
temperature when turning the ignition switch from OFF to ON. The detection temperature of the ambient
JMIIA3576GB
HAC-152
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
sensor is used when engine coolant temperature is low [less than approximately 56
°
C (133
°
F)]. The mem-
ory data (before the ignition switch is OFF) when the engine is warmed up [approximately 56
°
C (133
°
F) or
more].
- The correction of the ambient temperature is not performed when the detection temperature of the ambient
temperature is less than approximately
−
20
°
C (–4
°
F).
Intake temperature correction
- A/C amp. inputs the temperature detected by intake sensor as the intake temperature (evaporator tempera-
ture).
- A/C amp. performs the correction of the temperature detected by intake sensor for air conditioning control.
- A/C amp. performs the correction so that the recognition intake temperature changes depending on the dif-
ference between the detected intake temperature and the recognition intake temperature. If the difference is
large, the changing is early. The changing becomes slow as the difference becomes small.
CONTROL BY ECM
HAC-152, "MANUAL AIR CONDITIONING SYSTEM : Compressor Control"
CONTROL BY IPDM E/R
HAC-152, "MANUAL AIR CONDITIONING SYSTEM : Compressor Control"
MANUAL AIR CONDITIONING SYSTEM : Air Inlet Control
INFOID:0000000010432505
DESCRIPTION
• A/C amp. controls the intake door motor and switches the air inlets.
• A/C amp. controls the air inlets so that they are set to fresh air intake, when compressor is stopped by low
temperature protection control.
• When the following conditions are met, A/C amp. controls the air inlets to 20% recirculation. (However, this
does not occur when high water temperature control is in effect.)
At this time, the intake switch indicator lamp turns OFF.
- Fan control dial: 21st - 24th
- Temperature control dial: Full hot
- Air outlet mode: DF ON or DEF ON
HIGH ENGINE COOLANT TEMPERATURE CONTROL
When either of the following conditions is met, A/C amp. changes the air inlets to recirculation.
Condition 1
• Air outlet: Other than D/F or DEF
• A/C switch: ON
• Ambient temperature: More than 25
°
C (77
°
F)
• Vehicle speed: 30 km/h or more
• Engine coolant temperature: 105
°
C (221
°
F) or more
Condition 2
• Air outlet: D/F or DEF
• Air inlet: Fresh air intake
• A/C switch: ON
• Ambient temperature: More than 25
°
C (77
°
F)
• Vehicle speed: 30 km/h or more
• Engine coolant temperature: 105
°
C (221
°
F) or more
MANUAL AIR CONDITIONING SYSTEM : Compressor Control
INFOID:0000000010432506
DESCRIPTION
• When the compressor activation condition is satisfied while blower motor is activated, A/C amp. transmits A/
C ON signal and blower fan ON signal to ECM.
• ECM judges the conditions of each sensor (Refrigerant pressure sensor signal, accelerator position signal,
etc.), and transmits the A/C compressor request signal to IPDM E/R via CAN communication line.
• By receiving the A/C compressor request signal from ECM, IPDM E/R turns the A/C relay to ON, and acti-
vates the compressor. Refer to
PCS-7, "RELAY CONTROL SYSTEM : System Description"
CONTROL BY A/C AMP.
Low Temperature Protection Control
SYSTEM
HAC-153
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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When intake sensor detects that evaporator fin temperature is
[
−
5.0
°
C (23.0
°
F)] or less, A/C amp. requests ECM to turn the compres-
sor OFF, and stops the compressor.
When the air temperature returns to
[1.0
°
C (33.8
°
F)] or more, the
compressor is activated.
Refrigerant Discharge Amount Control
• A/C amp. transmits the ECV control signal via CAN communication. IPDM E/R transmits the control signal to
ECV according to the received ECV control signal.
• ECV is controlled according to change in the duty ratio of the transmitted control signal.
• Except when temperature setting is full cold or outlet is DEF, A/C amp. controls the refrigerant discharge
amount according to the required cooling capacity.
• A/C amp. increases the refrigerant discharge amount when evaporator temperature is higher than the target
temperature upper limit, and reduces the refrigerant discharge amount when evaporator temperature is at or
below the target temperature upper limit.
NOTE:
Target temperature upper limit value of evaporator can be changed using “TARGET EVAPORATOR TEMP
UPPER LIMIT SETTING” in “WORK SUPPORT” mode of CONSULT. Refer to
Evaporator Temperature Upper Limit Value"
.
Compressor Oil Circulation Control
When the engine starts, A/C amp. activates the compressor for a few seconds and circulates the compressor
oil once.
CONTROL BY ECM
Compressor Protection Control at Pressure Malfunction
When the high-pressure side value that is detected by refrigerant pressure sensor is as per the following state,
ECM requests IPDM E/R to turn A/C relay OFF and stops the compressor.
• 3.12 MPa (31.82 kg/cm
2
, 452.4 psi) or more (When the engine speed is less than 1,500 rpm)
• 2.74 MPa (27.95 kg/cm
2
, 397.3 psi) or more (When the engine speed is 1,500 rpm or more)
• 0.14 MPa (1.43 kg/cm
2
, 20.3 psi) or less
Air Conditioning Cut Control
When the engine condition is high load, ECM transmit A/C relay OFF request to IPDM E/R, and stops the
compressor.
MANUAL AIR CONDITIONING SYSTEM : Door Control
INFOID:0000000010432507
SWITCH AND THEIR CONTROL FUNCTION
JMIIA2550GB
HAC-154
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
*1: With rear ventilator
*2: With rear foot duct
NOTE:
The sub-defroster and side ventilator door include a permanent opening and does not fully close.
Intake door
Blower motor
Air conditioner filter
Evaporator
Heater core
PTC heater
Air mix door
Foot door
Side ventilator door
Sub defroster door
Center ventilator and defroster door
Fresh air
Recirculation air
Discharge air
Defroster
Center ventilator
Side ventilator
Rear ventilator
*1
Front foot
Rear foot
*2
JMIIA3570ZZ
SYSTEM
HAC-155
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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For Europe and Russia
Except for Europe and Russia
Switch/dial position
Door position
Mode door
Intake door
Air mix
door
Ce
nt
e
r v
e
n
til
at
o
r a
n
d
de
fr
ost
e
r
do
or
S
u
b
de
fros
te
r do
or
Si
de
v
e
n
til
at
o
r
do
or
Fo
ot doo
r
• MODE VENT switch
• MODE FOOT switch
• MODE DEF switch
• MAX DEF switch
MODE
position
VENT/DEF (V/D)
—
—
VENT
Bi-level (B/L)
ALL
FOOT
DEF/FOOT (D/F)
DEF
INTAKE switch
REC
—
—
—
—
FRE
Temperature control dial
Full cold
—
Full cold – Full hot
-
Full hot
Switch/dial position
Door position
Mode door
Intake
door
Air mix
door
Ce
nt
er v
e
n
til
ato
r a
n
d
de
fros
te
r do
or
Sub
de
fr
ost
e
r do
or
S
ide
v
e
n
til
ato
r do
or
Fo
ot
do
o
r
VENT switch
—
—
B/L switch
FOOT switch
D/F switch
DEF switch
HAC-156
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
AIR DISTRIBUTION
Without rear ventilator, without rear foot
*: These positions are applied only to models for Europe and Russia.
Without rear ventilator, with rear foot
INTAKE switch
REC
—
—
—
—
FRE
Temperature control dial
Full cold
—
Full cold – Full hot
–
Full hot
Discharge air flow
MODE position
Air outlet/distribution
Ventilator
Front foot
Defroster
Center
Side
V/D*
40%
35%
—
25%
VENT
54%
46%
—
—
B/L
31%
40%
29%
—
ALL*
21%
34%
31%
14%
FOOT
—
10%
58%
32%
D/F
—
9%
43%
48%
DEF
—
10%
—
90%
Switch/dial position
Door position
Mode door
Intake
door
Air mix
door
Ce
nte
r v
e
n
tila
to
r an
d
de
fros
te
r do
or
Su
b de
fr
os
te
r do
or
Si
de
ve
nt
ila
to
r do
or
Fo
ot
do
or
Discharge air flow
MODE position
Air outlet/distribution
Ventilator
Foot
Defroster
Center
Side
Front
Rear
V/D
40%
35%
—
—
25%
VENT
54%
46%
—
—
—
B/L
33%
40%
16%
11%
—
ALL
22%
35%
16%
11%
16%
FOOT
—
11%
32%
25%
32%
D/F
—
8%
24%
19%
49%
DEF
—
10%
—
—
90%
SYSTEM
HAC-157
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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With rear ventilator, with rear foot
MANUAL AIR CONDITIONING SYSTEM : Cooling Fan Control
INFOID:0000000010519431
DESCRIPTION
A/C amp. controls the cooling fan operation request according to the refrigerant pressure status and vehicle
speed status.
NOTE:
For an overview of the cooling fan and information about control, refer to
(HR engine models),
ECM-74, "COOLING FAN CONTROL : System Description"
ECM-654, "COOLING FAN CONTROL : System Description"
(MR20DD engine
ECK-34, "COOLING FAN CONTROL : System Description"
(K9K engine models) or
ING FAN CONTROL : System Description"
(R9M engine models).
CONTROL OUTLINE
• A/C amp. receives the refrigerant pressure sensor signal from ECM via CAN communication, and the vehi-
cle speed signal from the combination meter via CAN communication.
• A/C amp. sets one of the optionally determined stages according to the received refrigerant pressure sensor
signal and vehicle speed signal.
NOTE:
For the rules that prescribe the predetermined stages, refer to the following figures.
• Vehicle speed stages
Vehicle speed [Km/h (MPH)]
-
: 12 (7.5)
-
: 20 (12)
-
: 72 (45)
-
: 80 (50)
• Refrigerant pressure stages (for Europe and Russia)
Refrigerant pressure [MPa (bar, kg/cm
2
, psi)]
-
: 0.7 (7, 7.14, 102)
-
: 1.0 (10, 10.2, 145)
-
: 1.28 (12.8, 13.1, 186)
-
: 1.58 (15.8, 16.1, 229)
-
: 1.88 (18.8, 19.2, 273)
-
: 2.08 (20.8, 21.2, 302)
Discharge air flow
MODE position
Air outlet/distribution
Ventilator
Foot
Defroster
Front
Rear
Front
Rear
Center
Side
V/D
39%
27%
11%
—
—
23%
VENT
47%
38%
15%
—
—
—
B/L
25%
34%
13%
18%
10%
—
ALL
21%
27%
11%
20%
10%
11%
FOOT
—
7%
4%
38%
24%
27%
D/F
—
6%
2%
30%
17%
45%
DEF
—
8%
2%
—
—
90%
JMIIA3568GB
JMIIA3569GB
HAC-158
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
SYSTEM
• Refrigerant pressure stages (except for Europe and Russia)
Refrigerant pressure [MPa (bar, kg/cm
2
, psi)]
-
: 0.7 (7, 7.14, 102)
-
: 1.0 (10, 10.2, 145)
-
: 1.08 (10.8, 11.0, 157)
-
: 1.38 (13.8, 14.1, 200)
-
: 1.68 (168, 17.1, 244)
• The requested cooling fan operation strength (0%, 40%, 100%%) is determined as shown in the following
table according to the combination of these two stages, and the request signal is transmitted to ECM via
CAN communication.
Cooling fan operation strength
Unit: %
MANUAL AIR CONDITIONING SYSTEM : Door Motor Starting Position Reset Control
INFOID:0000000010519452
• Step motors are used for the mode door motor air mix door motor, and intake door motor.
• Because the step motors do not have position detection mechanisms, there may be a deviation between the
door position recognized by A/C amp. and the actual door position.
Therefore, A/C amp. performs motor zero position reset for aligning its recognized door position with the
actual door position.
• The reset signal is transmitted from A/C amp. to the air mix door motor, mode door motor, and intake door
motor, which then perform zero position reset.
• After any of the following conditions is met, A/C amp. performs motor zero position reset when the ignition
switch is next turned ON.
- The ignition switch is turned from ON to OFF a total of 360 times.
- The ignition switch turns OFF while the mode door motor, air mix door motor, or intake door motor is operat-
ing.
• If A/C amp., air mix door motor, mode door motor, or intake door motor is removed, it is necessary to perform
motor zero position reset using CONSULT.
PTC HEATER CONTROL SYSTEM
JMIIA3577GB
—
Refrigerant pressure stages
1
2
3
4
Vehicle speed stag-
es
1
40
40
100
100
2
40
40
100
100
3
0
0
0
100
SYSTEM
HAC-159
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
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PTC HEATER CONTROL SYSTEM : System Description
INFOID:0000000010502884
SYSTEM DIAGRAM
DESCRIPTION
• BCM performs PTC relay ON/OFF control based on engine speed, engine coolant temperature, electrical
power cut freeze signal (permission signal, retention signal, stop signal), blower motor operation state sig-
nal, front window defogger state signal, ambient temperature signal, battery voltage, and electrical load state
(high beam request, low beam request, and others).
• When PTC relay turns ON, power supply is supplied to PTC heater. Heating element is heated and air flow
temperature is increased. Heating is available for a period of time until engine coolant temperature is
increased when engine starts cold in cold climate.
• Idle up request signal is transmitted from BCM to ECM while PTC heater operates. Idle speed is increased,
warming-up is facilitated, and battery electric power is obtained.
• Electric power supplied to PTC heating element is subject to PTC relay control conditions.
NOTE:
PTC heater operation depends on ambient temperature and battery voltage. PTC heater is ON when ambient
temperature is 8
°
C or less. PTC heater is OFF when ambient temperature is 12
°
C (53.6
°
F) or more. PTC
heater is ON when battery voltage is 11.5 V or more. PTC heater is OFF when battery voltage is 11 V or less.
JMIIA3583GB
PTC heater
Operation
PTC relay-1
PTC relay-2
PTC relay-3
Electric power (W)
OFF
OFF
OFF
OFF
OFF
Approx. 0
PTC heater-1
LOW
ON
OFF
OFF
Approx. 333
PTC heater-2
MID
ON
ON
OFF
Approx. 666
PTC heater-3
HI
ON
ON
ON
Approx. 999
HAC-160
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
OPERATION
OPERATION
Switch Name and Function
INFOID:0000000010432511
OPERATION AND DISPLAY OF AUTOMATIC AIR CONDITIONING SYSTEM (FOR EUROPE AND
RUSSIA)
Operation: A/C control
INTAKE switch
A/C switch
MAX DEF switch
Fan control dial
MODE DEF switch
MODE VENT switch
MODE FOOT switch
Temperature control dial
Switch name
Function
INTAKE switch
Air inlet changes between recirculation (REC)
⇔
fresh air intake (FRE) each time this switch is pressed.
• Switch indicator lamp ON: Recirculation
• Switch indicator lamp OFF: Fresh air intake
A/C switch
Compressor control (switch indicator) changes between ON
⇔
OFF each time this switch is pressed
while blower motor is operated.
NOTE:
A/C switch cannot be turned ON when blower motor is OFF.
MAX DEF switch
MAX DEF mode (switch indicator) changes between ON
⇔
OFF each time switch is pressed.
• Air conditioning becomes the following status when MAX DEF mode is turned ON.
- Air outlet: DEF
- Air flow: ON
- Air inlet: Fresh air intake
- A/C switch: ON
• Air conditioning becomes the following status when MAX DEF mode is turned OFF.
- Air outlet: Settings set before DEF mode is turned ON
- Air flow: Settings set before DEF mode is turned ON
- Air inlet: Settings set before DEF mode is turned ON
- A/C switch: Settings set before DEF mode is turned ON
Fan control dial
The air flow can be manually set within the range of speeds 1st - 24th by operating the dial.
JMIIA3578ZZ
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