Manual Heating and Air Conditioning System

Suzuki SX4 / Suzuki SX4 Owners Manual / Instrument Panel / Manual Heating and Air Conditioning System

Description of Controls
Description of Controls

Temperature selector (1)

This is used to select the temperature by turning the selector.

Blower speed selector (2)

This is used to turn on the blower and to select blower speed by turning the selector.

Air flow selector (3)
Air flow selector (3)

This is used to select one of the functions described below.

Ventilation (a)
Ventilation (a)

Temperature-controlled air comes out of the center and side air outlets.

Bi-level (b)
Bi-level (b)

Temperature-controlled air comes out of the floor outlets and cooler air comes out of the center and side outlets. When the temperature selector (1) is in the fully COLD position or fully HOT position, however, the air from the floor outlets and the air from the center and side outlets will be the same temperature.

Heat (c)
Heat (c)

Temperature-controlled air comes out of the floor outlets and the side outlets, also comes out of the windshield defroster outlets and the side defroster outlets slightly.

Heat & defrost (d)
Heat & defrost (d)

Temperature-controlled air comes out of the floor outlets, the windshield defroster outlets, the side defroster outlets and the side outlets.

Defrost (e)
Defrost (e)

Temperature-controlled air comes out of the windshield defroster outlets, the side defroster outlets and the side outlets.

NOTE:
When the air flow selector (3) is turned either to “Heat & defrost (d)” or “Defrost (e)”, the air conditioning system will come on and the “FRESH AIR” mode will be selected automatically.

Air intake selector (4)
Air intake selector (4)

This selector is used to select the following modes.

Fresh Air (f)

When this mode is selected, the indicator light will go off and outside air is used.

Recirculated Air (g)

When this mode is selected, the indicator light will come on, outside air is shut out and inside air is recirculated. This mode is suitable when driving through dusty or polluted air such as in a tunnel, or when attempting to quickly cool down the interior.

“FRESH AIR” and “RECIRCULATED AIR” are switched alternately each time the air intake selector is pushed.

NOTE:
If you select “RECIRCULATED AIR” for an extended period of time, the air in the vehicle can become contaminated. Therefore, you should occasionally select “FRESH AIR”.

Air conditioning switch (5)

To turn on the air conditioning system, push in the “A/C” switch and set the blower speed selector to a position other than “OFF”. With this “A/C” switch operation, a indicator light will come on when the air conditioning system is on. To turn off the air conditioning system, push the “A/C” switch again.

During operation of the air conditioner, you may notice slight changes in engine speed. These changes are normal, the system is designed so that the compressor turns on or off to maintain the desired temperature.

Less operation of the compressor results in better fuel economy.

System Operating Instructions

Natural ventilation

Select “VENTILATION” and “FRESH AIR”, the temperature selector to the desired temperature position, and the blower speed selector to “OFF”. Fresh air will flow through the vehicle during driving.

Forced ventilation

The control settings are the same as for natural ventilation except you set the blower speed selector to a position other than “OFF”.

Normal heating (using outside air)

Select “HEAT” and “FRESH AIR”, the temperature selector to the desired temperature position and the blower speed selector to the desired blower speed position. Setting the blower speed selector to a higher blower speed position increases heating efficiency.

Quick heating (using recirculated air)

The control settings are the same as for normal heating except you select “RECIRCULATED AIR”. If you use this heating method for an extended period of time, the air in the vehicle can become contaminated and the windows can become misty.

Therefore, use this method only for quick heating and change to the normal heating method as soon as possible.

Head cooled/Feet warmed heating

Select “BI-LEVEL” and “FRESH AIR”, the temperature selector to the desired temperature position, and the blower speed selector to the desired blower speed position.

Unless the temperature selector is in the fully COLD position or fully HOT position, the air that comes out of the center and side outlets will be cooler than the air that comes out of the floor outlets.

Normal cooling

Turn on the “A/C” switch, set the air flow selector to “VENTILATION”, the temperature selector to the desired temperature position and the blower speed selector to the desired blower speed position. Setting the blower speed selector to a higher blower speed position increases cooling efficiency.

You can switch the air intake selector to either “FRESH AIR” or “RECIRCULATED AIR” as you desire. Choosing “RECIRCULATED AIR” increases cooling efficiency.

Quick cooling (using recirculated air)

The control settings are the same as for normal cooling except you select “RECIRCULATED AIR” and the highest blower speed.

NOTE:
• If you select “RECIRCULATED AIR” for an extended period of time, the air in the vehicle can become contaminated.

Therefore, you should occasionally select “FRESH AIR”.

• If your vehicle has been left in the sun with the windows closed, it will cool faster if you open the windows briefly while you operate the air conditioner with the air intake selector at “FRESH AIR” and the blower at high speed.

Dehumidifying

Turn on the “A/C” switch, set the air flow selector to a desired air flow selector position, and select “FRESH AIR”, the temperature selector to the desired temperature position, and the blower speed selector to the desired blower speed position.

NOTE:
Because the air conditioner dehumidifies the air, turning it on will help keep the windows clear, even when blowing heated air using the “DEFROST” or “HEAT & DEFROST” functions.

NOTE:


NOTE:
If you need maximum defrosting: • select “DEFROST” and “FRESH AIR”, • turn on the “A/C” switch, • set the blower speed selector to HIGH, • adjust the temperature selector to the HOT end, and
• adjust the side outlets so the air blows on the side windows.

Maintenance

If you do not use the air conditioner for a long period, such as during winter, it may not give the best performance when you start using it again. To help maintain optimum performance and durability of your air conditioner, it needs to be run periodically.

Operate the air conditioner at least once a month for one minute with the engine idling. This circulates the refrigerant and oil and helps protect the internal components.

Your air conditioner is equipped with air filters.

Clean or replace them as specified in the “Maintenance Schedule” in the “INSPECTION AND MAINTENANCE” section.

Have this job done by your SUZUKI dealer as the lower glove box must be lowered for this job.

NOTE:
Your vehicle uses the air conditioning refrigerant HFC-134a, commonly called “R-134a”. R-134a replaced R-12 around 1993 for automotive applications. Other refrigerants are available, including recycled R-12, but only R-134a should be used in your vehicle.

CAUTION:
Using the wrong refrigerant may damage your air conditioning system.

Use R-134a only. Do not mix or replace the R-134a with other refrigerants.

See also:

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