Komatsu — Komatsu PC450-6K and PC450LC-6K Hydraulic Excavator Operation & Maintenance Manual

11. EXPLANATION OF COMPONENTS 3. Temperature control slider This adjust out air temperature To increase temperature of outlet air: move slides to left (red) To decrease temperature of outlet air: move slides to right (blue) 4. Air flow selector switch This switch adjust air flow in three steps 5. Defroster selector lever This lever is used to remove condensation or ice on the front window. Selector lever forward: defrost Selector lever backward: warms operator’s feet Defroster is available when air outlet slider is in the position shown by decal:

A DEFROSTER B FEET 11.11 AIR CONDITIONER(OPTION) RED BLUE Description The optional air conditioner can be used to cool, heat & de-humidify operators cab. 1. HEAT CONTROL SLIDER By sliding control lever a to the right (red) the air passing through the airconditioner unit will be warmed. In heating mode fresh ambient temperature air can be introduced to the cab when the lever a is to the left (blue). In air conditioner mode temperature is controlled by adjusting lever a to introduce some warm air to achieve desired temperature. PC450-ENG 2-30