John Deere 450DLC, 650DLC, and 850DLC Excavators — Cab Heater and Air Conditioner

Operation—Operator’s Station Cab Heater and Air Conditioner 1 3 4 2 5 6 1. Blower OFF Button: Press OFF button to turn blower off. When blower OFF switch is pressed, all displays on the monitor display will disappear, and the blower will stop in both the auto and manual modes. T140130 –UN–20MAR01 2. Blower Fan Speed Buttons: Press blower buttons to select desired blower fan speed. Selected fan speed will be displayed on the bottom of the monitor display. 3. Monitor Display: Displays blower fan speed, selected air vent, and temperature setting.

9 8 7 1—Blower OFF Button 2—Blower Fan Speed Buttons 3—Monitor Display 4—Temperature Control Buttons 5—Mode Button (air flow to front and rear vents, and defroster vent) 6—AUTO A/C Button 7—A/C Button 8—Fresh Air Mode Button 9—Recirculating Mode Button 4. Temperature Control Buttons: Press buttons to set temperature. The temperature will be displayed on the center of the monitor display. Press both and switches at the same time, and hold for 5 seconds to change the temperature mode (Centigrade—Fahrenheit). 5. Mode Button: Press to select desired air vent. Selected air vent is displayed on the top of the monitor display. 6. AUTO A/C Button:

Press AUTO button to turn AUTO and A/C indicators on. Air flow-in temperature at the vent, blower speed, vent locations, and fresh air port are automatically controlled. Press AUTO button again to turn off indicator light and select manual mode. Air flow-in temperature at the vent, blower speed, vent locations, and fresh air port can be manually selected. 7. A/C Button: Air conditioner will turn on when A/C button is pressed and fan display of the blower button is on. A/C indicator will also light. 8. Fresh Air Mode Button: Press fresh air mode button to open fresh air vent and route outside air into the cab. Indicator will also light. 9. Recirculating Mode Button:

Press recirculating mode button to close fresh air vent and circulate air already in cab. Indicator will also light. Continued on next page DW90712,0000033 –19–03FEB06–1/3 2-1-11 010609 PN=40 OFF DENSO FULL AUTO AIRCONDITIONER TEMP MODE AUTO A/C