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AIR CONDITIONING DESCRIPTION AND OPERATION 82-15 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 l If the switch is kept depressed, after 1 second subsequent distribution changes occur every 0.4 seconds until External air temperature (EXT) switch. Enabled while the system is on or off. Switches the external temperature output l If the system is already on, the temperature output overrides the system outputs for approximately 7 seconds, l If the system is switched on while the external temperature output is on, the system outputs override the external 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 Temperature settings: The LH and RH temperature settings are reference inputs used by the control system and give Audible warning: A 'beep' is emitted from the ATC ECU each time it receives a control switch input. This audible 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. |