air condition NISSAN QUEST 2005 V42 / 3.G Service Manual

cto prevent traffic fumes from entering pas-
senger compartment.
cfor maximum cooling when using the air con-
ditioner.
OFF position:
Push the
button again to turn air recircula-
tion off. (will appear on the display.) Out-
side air is drawn into the passenger compartment
and distributed through the selected outlet.
Use the off position for normal heater or air con-
ditioner operation.
Air conditioner button
Start the engine, turn the fan control dial to the
desired position and push thebutton to
turn on the air conditioner. A/C will appear on the
display when the air conditioner is operating. To
turn off the air conditioner, push the
button
again, the display will show A/C OFF.
The air conditioner cooling function oper-
ates only when the engine is running.
Rear window defroster switch
For more information about the rear window de-
froster switch, see “Rear window defroster
switch” in the “Instruments and controls” section
of this manual.
HEATER OPERATION
Heating
This mode is used to direct heated air to the foot
outlets. Some air also flows from the defrost
outlets.
1. Push the
button to the OFF position
for normal heating (shown on dis-
play) .
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.
Ventilation
This mode directs outside air to the side and
center ventilators.
1. Push the
button to the OFF position
(shown on display) .
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.4. Turn the temperature control dial to the de-
sired position.
Defrosting or defogging
This mode directs the air to the defrost outlets to
defrost/defog the windows.
1. Turn the air flow control dial to the
position.
2. Turn the fan control dial to the desired posi-
tion.
3. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.
cTo quickly remove ice or fog from the win-
dows, turn the fan control dial to the highest
setting and the temperature control lever to
the full HOT position.
cWhen the
position is selected, the air
conditioner automatically turns on (however,
A/C will not appear on the display) if the
outside temperature is more than 36°F
(2°C) . The air conditioning system will con-
tinue to operate until the fan control dial is
turned to OFF or the vehicle is shut off, even
if the air flow control dial is turned to a
position other than the
position. This
dehumidifies the air which helps defog the
windshield. The
mode automatically
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turns off, allowing outside air to be drawn
into the passenger compartment to further
improve the defogging performance.
Bi-level heating
The bi-level mode directs warmed air to the side
and center vents and to the front and rear floor
outlets.
1. Push the
button to the OFF position
(shown on display) .
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Turn the temperature control dial to the de-
sired position.
Heating and defogging
This mode heats the interior and defogs the wind-
shield.
1. Turn the air flow control dial to the
position.
2. Turn the fan control dial to the desired posi-
tion.
3. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.cWhen the
position is selected, the air
conditioner automatically turns on (however,
A/C will not appear on the display) if the
outside temperature is more than 36°F
(2°C) . The air conditioning system will con-
tinue to operate until the fan control dial is
turned to OFF or the vehicle is shut off, even
if the air flow control dial is turned to a
position other than the
position. This
dehumidifies the air which helps defog the
windshield. The
mode automatically
turns off, allowing outside air to be drawn
into the passenger compartment to further
improve the defogging performance.
Operating tips
Clear snow and ice from the wiper blades
and air inlet in front of the windshield. This
improves heater operation.
AIR CONDITIONER OPERATION
Start the engine, turn the fan control dial to the
desired position, and push in thebutton to
activate the air conditioner. When the air condi-
tioner is on, cooling and dehumidifying functions
are added to the heater operation.
The air conditioner cooling function oper-
ates only when the engine is running.
Cooling
This mode is used to cool and dehumidify the air.
1. Push the
button to the OFF position.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Push the
button. A/C will appear on
the display.
5. Turn the temperature control dial to the de-
sired position.
cFor quick cooling when the outside tem-
perature is high, push the
button to
the ON position (shown on display) .
Be sure to return theto the OFF po-
sition for normal cooling (shown on
display) . You may also select MAX A/C for
quick cooling.
Dehumidified heating
This mode is used to heat and dehumidify the air.
1. Push the
button to the OFF position
(shown on display) .
2. Turn the air flow control dial to the
position.
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3. Turn the fan control dial to the desired posi-
tion.
4. Push the
button. The display shows
A/C.
5. Turn the temperature control dial to the de-
sired position.
Operating tips
cKeep the windows and sunroof (if so
equipped) closed while the air conditioner is
in operation.
cAfter parking in the sun, drive for 2 or 3
minutes with the windows open to vent hot
air from the passenger compartment. Then,
close the windows. This allows the air con-
ditioner to cool the interior more quickly.
cThe air conditioning system should be
operated for approximately 10 minutes
at least once a month. This helps pre-
vent damage to the system due to lack
of lubrication.
cIf the engine coolant temperature
gauge indicates engine coolant tem-
perature over the normal range, turn
the air conditioner off. See “If your
vehicle overheats” in the “In case of
emergency” section of this manual.
AIRFLOW CHARTS
The following charts show the button and dial
positions forMAXIMUM AND QUICKheating,
cooling or defrosting. For additional information
on heating and cooling see “Heating” on page
4-20 and “Cooling” on page 4-21.The air re-
circulation (
) button should always
be in the OFF position for heating and
defrosting.
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WHA0502WHA0503
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WHA0504WHA0505
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WHA0506
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WHA0507
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WHA0508
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1. Driver temperature control dial
2. Front window defroster button
3. Fan speed control and system OFF dial
4. AUTO button
5. Passenger temperature control dial
6. A/C ON/OFF button
7. Rear control and fan speed dial
8. Rear window defroster button
9. MODE button
10. Air recirculation button
11. Rear temperature control dialWARNING
cThe air conditioner cooling function op-
erates only when the engine is running.
cOn hot, sunny days, temperatures in a
closed vehicle could quickly become
high enough to cause severe or possi-
bly fatal injuries to people or animals.
Do not leave children or adults who
would normally require the support of
others in your vehicle. Unattended pets
should not be left alone either.cDo not use the recirculation mode for
long periods as it may cause the interior
air to become stale and the windows to
fog up.
cPositioning of the heater and/or air
conditioner controls should not be
done while driving so full attention may
be given to vehicle operation.
Start the engine and operate the controls to
activate the air conditioner.
AUTOMATIC OPERATION
Cooling or heating (auto)
This mode may be normally used all year round as
the system automatically works to keep a con-
stant temperature. Air flow distribution and fan
speed are also controlled automatically.
1. Push the AUTO button on. (AUTO will be
displayed.)
2. Turn the driver’s side temperature control
dial to the left or right to set the desired
temperature. Driver and passenger tem-
peratures can be set independently. Press
AUTO a second time to activate dual climate
control functions. Turn the passenger’s side
temperature control dial to the left or right to
set the desired passenger’s temperature.
LHA0491
HEATER AND AIR CONDITIONER
(automatic) (if so equipped)
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cAdjust the temperature dial to about 75°F
(24°C) for normal operation.
cThe temperature of the passenger compart-
ment will be maintained automatically. Air
flow distribution, fan speed and A/C on/off
are also controlled automatically.
Dehumidified defrosting or defogging
1. Push the defroster control buttonto
turn the system on. The display will show the
defrost icon.
2. Turn the temperature dial to the left or right
to set the desired temperature.
cTo quickly remove ice from the outside of the
windows, turn the manual fan control dial to
the maximum position
.
cAs soon as possible after the windshield is
clean, push the AUTO button to return to the
auto mode.
cWhen the DEF control
is activated,
the air conditioner will automatically be
turned on at outside temperatures above
36°F (2°C) . If in defrost mode for more than
one minute, the air conditioning system will
continue to operate until the fan control is
turned OFF or the vehicle is shut off, even if
the air flow MODE control button is used to
select a position other than the
posi-tion. This dehumidifies the air which helps
defog the windshield. The air recirculation
mode automatically turns off, allowing out-
side air to be drawn into the passenger
compartment to further improve the defog-
ging performance.
MANUAL OPERATION
Fan speed control
Turn the fan control dialleft or right to
manually control the fan speed.
Push the AUTO button to return to automatic
control of the fan speed.
Air recirculation
Push the air recirculation buttonto recir-
culate interior air inside the vehicle. Push the
AUTO button to return to automatic mode.
The air recirculation button will not be activated
when the air conditioner is in DEF, floor, or
floor/defrost mode.
Air flow control
Pushing the MODE button manually controls air
flow and selects the air outlet to:
— Air flows from center and side
ventilators.
— Air flows from center and side
ventilators and foot outlets.
— Air flows mainly from foot outlets.
— Air flows from defroster and foot
outlets.
— Air flows mainly from defroster
outlets.
To turn system off
Turn and hold the fan speed control dial all the
waytotheleft(0)until the system turns off.
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