OPERATOR'S STATION AIR CONDITIONER OPERATION Features: Full-Automatic Control Regardless of variations in atmospheric temperature and whether sun light is intense or not, the air temperature at the vent, blower speed, and air in/out vent locations are automatically controlled so that air temperature in the cab is maintained at the temperature set by the temperature control switch. Highest and Lowest Temperature Control Highest or lowest air temperature in the cab is set by turn- ing either the FH (Full-Heat) or FC (Full-Cool) indicator ON using the temperature control switch.
Heater Start-Operation Control System In winter or in cold weather, when starting the engine, the engine coolant is cool and air temperature inside the cab is low. Then, cool air is restricted not to flow in the cab to the minimum (LO) until the coolant is warmed when the front foot vent and /or foot vent is selected. 1-66