Mazda 6 Training Manual page 351

Air Intake Automatic Control
• Based on the ambient temperature and sunlight intensity, the climate control unit calculates the cabin
temperature computation value. By comparison with this cabin temperature computation value and actual
cabin temperature, air intake mode is determined.
.
1 Cabin temperature computation value
2 Recirculate
3 Fresh
Correction
MAX COLD correction
• When the temperature is set to 15.0 (European (L.H.D. U.K.) specs.) or 18.0 (GCC specs.), air intake is fied in
recirculated air intake mode to improve cooling effect. This correction does not operate when defroster
correction is on or when the A/C compressor is in OFF mode or when the ambient temperature is below 5° ° ° ° C
{41° ° ° ° F}.
Defroster correction
• When the defroster switch is on, air intake is fied in fresh air intake mode to improve defrosting effect, and this
correction also operates when recirculated air intake mode is on by manual operation.
Ambient temperature correction
• When the ambient temperature is 5 ° ° ° ° C {41° ° ° ° F} or below, air intake mode is fied at FRESH to prevent
windshield and front door glass fogging.
A/C OFF correction
• While in air intake automatic control and A/C OFF mode, air intake mode is fied at FRESH.
Air Intake Manual Control
• The driver can switch air intake mode by operating the REC/FRESH switch.
Air intake mode
FRESH
RECIRCULATE
End Of Sie
A/C COMPRESSOR CONTROL
• In A/C compressor control, the A/C relay (A/C compressor) is controlled via the PCM so that discharged air is
simultaneously cooled and dehumidified to provide comfortable air conditioning.
• The climate control unit sends A/C signals to the PCM which actuates the A/C relay.
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U–32
CONTROL SYSTEM
Switching from RECIRCULATE to FRESH fies mode in FRESH
Switching from FRESH to RECIRCULATE fies mode in RECIRCULATE
4 Cabin temperature
5 Low
6 High
REC/FRESH switch operation
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