Air conditioning (Control panel): Description and operation (page 2 of 2)

Distribution switch. Enabled only while the system is on. Provides manual control of air distribution: l Each press changes the air distribution, in sequence, through footwells only, footwells and windscreen/side windows demist, windscreen/side windows demist only, face level only, face level and footwells. l If the switch is kept depressed, after 1 second subsequent distribution changes occur every 0.4 seconds until distribution reaches face level and footwells. Releasing and then pressing the switch again changes distribution back to footwells only.

External air temperature (EXT) switch. Enabled while the system is on or off. Switches the external temperature output on and off: l If the system is already on, the temperature output overrides the system outputs for approximately 7 seconds, then the display reverts to system outputs. l If the system is switched on while the external temperature output is on, the system outputs override the external temperature output.

Fresh/Recirculated air switch. Enabled only while the system is on. Provides manual control of inlet air selection.

Defrost mode switch. Starts the system in, or switches the system to and from, defrost mode.

Automatic mode (AUTO) switch. Starts the system in, or switches the system to and from, the automatic mode.

Economy mode (ECON) switch. Enabled only while the system is on. Provides manual on/off control of the refrigerant system compressor, to reduce fuel consumption when there is no requirement for cool or dehumidified air, e.g. when the ambient temperature is lower than the LH and RH temperature settings.

Temperature settings: The LH and RH temperature settings are reference inputs used by the control system and give an approximation of the temperatures that will be established in the cabin. They are not necessarily actual distribution outlet temperatures, or the temperatures at specific points in the cabin.

Audible warning: A 'beep' is emitted from the ATC ECU each time it receives a control switch input. This audible warning can be switched off and on by pressing and holding the AUTO switch, then pressing and holding the A/C on/ off switch until the audible warning sounds (approximately 3 seconds). While switched off, the audible warning still sounds when: l Switching between °F and °C on the display. l Switching the audible warning from off to on. l Switching the timed feet function on and off. l Switching the timed recirculated inlet air on and off. l Switching the latched recirculated inlet air on and off. l When there is a fault warning. l Running the self diagnostic routine.