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Air Conditioning / Heat Operation

A) Air Conditioning Mode:

  1. Start the machine and rotate the fan control knob to high, medium or low speed.
  2. Rotate the thermostat to a desired setting. Rotate the thermostat knob clockwise to increase cooling.
  3. Insure the heater control is off – knob should be rotated counter clockwise until it stops.
  4. If engine shutoff valves have been installed at the engine block, insure they are closed.

B) Heating Mode:

  1. Start the machine and rotate the fan control knob to high, medium or low speed.
  2. Rotate the heater control knob to a desired setting. Rotate the heater control knob clockwise to increase heating.
  3. Insure the air conditioning thermostat is off – knob should be rotated counter clockwise until it stops.
  4. If engine shutoff valves have been installed at the engine block, insure they are open.