Starting From Hot

Starting From Hot In AUTO Working Mode
- Conditions are correct for starting from hot when the outside temperature exceeds the selected temperature by 5 °C (9 °F) or when the calculated value of blended air temperature is below +80 °C (95 °F).

- There can be two levels of starting from hot, depending on the result of the temperature calculations carried out by the ACC unit in order to establish its control criteria. For simplicity, these levels are called hot and very hot. The following special selections apply:

Hot conditions - current to the ventilation fan increases from 4.5 A during the start up period to the required speed at 1 A per second. The air distribution damper starts in normal position, and when the fan has achieved its operating speed, the program continues in normal operation.

Very hot conditions - ventilation fan motor current,increases from 4.5 A during the start up period to 8 A, and then in steps of 1 A per second until the required speed is achieved. For 60 seconds, the air distribution damper is set to VENTILATION position. After 1 minute, the ACC control module switches to NORMAL operation.