2005 SUBARU IMPREZA air condition

4-1
4
Climate control
Ventilator ....................................................... 4-2 Air flow selection .............................................. 4-2
Center and side ventilators .............................. 4-3
Manual climate control system (if equipped) .............................................. 4-4Control panel ..................................................... 4-4
Heater operation ............................................... 4-6
Air conditioner operation (if equipped) .......... 4-9
Automatic climate control system (if equipped) .............................................. 4-11Control panel ..................................................... 4-11
To use as full-automatic climate control system ............................................................. 4-12
To use as semi-automatic climate control
system ............................................................. 4-12
Fan speed control dial ...................................... 4-12
Temperature control dial .................................. 4-13
Air flow control dial .......................................... 4-13
Air inlet selection button .................................. 4-14
Air conditioner button ...................................... 4-15
Temperature sensors ....................................... 4-16
Operating tips for heater and air conditioner ........................................... 4-17Cleaning ventilation grille ................................ 4-17
Efficient cooling after parking in direct sunlight ........................................................... 4-17
Lubrication oil circulation in the refrigerant circuit .............................................................. 4-17
Checking air conditioning system
before summer season .................................. 4-17 Cooling and dehumidifying in high humidity
and low temperature weather conditions .... 4-18
Air conditioner compressor shut-off when engine is heavily loaded ...................... 4-18
Refrigerant for your climate control system .. 4-18
Air filtration system (Turbo model only) ..... 4-18 Replacing an air filter ....................................... 4-19

4-4
Climate control
Manual climate control system (if
equipped) „
Control panel
1) Air inlet selection lever
2) Air conditioner button
3) Rear window defogger button (Refer to the “Rear win- dow defogger button” in chapter 3.)
4) Air flow control dial
5) Fan speed control dial
6) Temperature control dial
T Temperature control dial
This dial regulates the temperature of air flow from the air outlets over a range from the blue side (cool) to red side (warm). T
Fan speed control dial
The fan operates only when the ignition switch is
turned to the “ON” position. The fan speed control dial
is used to select four fan speeds. T Air flow control dial
This dial has the following five positions:
: Air flows through the instrument panel outlets.: Air flows through the instrument panel outlets
and the foot outlets.
: Air flows through the foot outlets and some
through the windshield defroster outlets.
: Air flows through the windshield defroster outlets
and foot outlets.
: Air flows through the windshield defroster out-
lets.
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UG4060BB

4-5
Climate control
– CONTINUED –
NOTE yYou will find the notation “USE WITH ” on
the air flow control dial plate.
This is intended to remind you to set the air inlet
selection lever in the “ ” position when de-
fogging the windshield.
Defogging with the air inlet selection lever set in
the “ ” position provides better defogging
performance than in the “ ” position.y When the dial is placed in the “ ” or “ ”
position, the air conditioner compressor operates
automatically regardless of the position of the air
conditioner button to defog the windshield quick- ly.
However the indicator on the air conditioner but-
ton will not come on.
Also, you cannot stop the air conditioner com-
pressor by pressing the air conditioner button. T
Air conditioner button (if equipped)
The air conditioner operates only when the engine is
running.
Push the air conditioner button while the fan is in op-
eration to turn on the air conditioner. The indicator light
will come on.
Push it again to turn off the air conditioner.T Air inlet selection lever
(Recirculation): Interior air is recirculated inside
the vehicle.
Place the air inlet selection lever in the “ ” posi-
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4-6
Climate control
tion for fast cooling with the air conditioner or when
driving on a dusty road.
(Outside air): Outside air is drawn into the pas-
senger compartment.
Place the air inlet selection lever in the “ ” posi-
tion when the interior has cooled to a comfortable tem-
perature and the road is no longer dusty.
Continued operation in the position may
fog up the windows. Switch to
the position as soon as the outside
dusty condition clears. „
Heater operation
T Defrosting or defogging the windshield
To direct warm air to the windshield and front door win-
dows:
1. Set the air inlet selection lever to the “ ” po-sition.
2. Set the air flow control dial to the “ ” position.
3. Turn the temperature control dial all the way to the
right.
4. Set the fan speed control dial to the highest speed.
If your vehicle is equipped with an air conditioner,
when the “ ” or “ ” position is selected, the air
conditioner compressor automatically operates re-
UG4061AA

4-7
Climate control
– CONTINUED –
gardless of the position of the air conditioner button to
defog the windshield quickly.
However, the air conditioner indicator light does not
come on at this time.
NOTE
Warm air also comes out from the right and left air
outlets. To stop warm air flow from these outlets,
turn the corresponding knob clockwise. THeating and defrosting
To direct warm air toward the floor and the windshield:
1. Set the air inlet selection lever to the “ ” po-sition. 2. Set the air flow control dial to the “ ” position.
3. Set the temperature control dial to the most com-
fortable level.
4. Set the fan speed control dial to the desired speed.
If your vehicle is equipped with an air conditioner,
when the “ ” or “ ” position is selected, the air
conditioner compressor automatically operates re-
gardless of the position of the air conditioner button to
defog the windshield quickly.
However, the air conditioner indicator light does not
come on at this time.
NOTE
Warm air also comes out from the right and left air
outlets. To stop warm air flow from these outlets,
turn the corresponding knob clockwise.
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4-9
Climate control
– CONTINUED –
ference between the air from the instrument panel out-
lets and the air from the foot outlets. TVentilation
To force outside air through the instrument panel out-
lets:
1. Set the air inlet selection lever to the “ ” po- sition.
2. Set the air flow control dial to the “ ” position.
3. Set the temperature control dial all the way left.
4. Set the fan speed control dial to the desired speed.
When driving on a dusty road, set the air inlet control
lever to the “ ” position.
Continued operation in the “ ” position
may fog up the windows. Switch to the
“ ” position as soon as the outside dusty
condition clears.
„ Air conditioner operation (if equipped)
T Cooling or dehumidifying
For cooling and dehumidification of the passenger
compartment, performing the following steps will allow
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4-10
Climate control
air to flow through the instrument panel outlets:
1. Set the air inlet selection lever to the “ ” po-sition.
2. Set the air flow control dial to the “ ” position.
3. Set the air conditioner button to the “ON” position.
4. Set the temperature control dial to the blue side.
5. Set the fan speed control dial at the highest speed. T
Defrosting or defogging
To direct warm air to the windshield and front door win-
dows:
1. Set the air inlet selection lever to the “ ” po- sition.
2. Set the air flow control dial to the “ ” position. 3. Set the temperature control dial to the red side.
4. Set the fan speed control dial at the highest speed.
The air conditioner compressor automatically oper-
ates when the air flow control dial set in the “ ” or
“ ” position to provide better defogging perfor-mance.
However, the air conditioner indicator light does not
come on at this time.
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4-11
Climate control
– CONTINUED –
Automatic climate control system (if
equipped)
Although this climate control system can be used as a
full-automatic climate control system, it can also, if de-
sired, be used as a semi-automatic climate control system.
When it is used as a full-automatic climate control sys-
tem, the outlet air temperature, fan speed, air flow dis-
tribution, air inlet control, and air conditioner compres-
sor operation are all automatically controlled to main-
tain a constant, comfortable temperature inside the vehicle.
NOTE yOperate the automatic climate control system
when the engine is running. y When the engine coolant is cold, the blower
does not run.y In the “AUTO” mode, when the air temperature
in the passenger compartment is sufficiently cool,
the air conditioner compressor does not operate.
For efficient defogging or dehumidifying in cold
weather, press the “A/C” button to operate the air
conditioner compressor. y Even when cooling is not necessary, setting the
temperature much lower than the current outlet air temperature turns on the air conditioner compres-
sor automatically and the “A/C” indicator light on
the control panel comes on. „
Control panel
1) Air flow control dial
2) Fan speed control dial
3) Temperature control dial
4) Air conditioner button
5) Air inlet selection button
6) Rear window defogger button (Refer to the “Rear win- dow defogger button” in chapter 3.)
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UG4055BB