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IHKR Operation

IHKR system operation is as follows:

  • Temperature Control - The desired interior temperature is set with the rotary knob on the control panel. Control of the interior temperature is carried out electronically by the con- trol module’s cycling of the water valve to regulate coolant flow through the heat exchanger.

  • Air Distribution - Air distribution is set mechanically through the use of gear linkages and bowden cables. The air can be set for:

    • -

      Footwell or blended between footwell/face vent or footwell and defrost

    • -

      Defrost or blended between footwell/defrost or defrost/face vent

    • -

      Face vent or blended between face vent/footwell or face vent/defrost

  • Blower Control - Blower fan speed is controlled through a final stage with infinitely vari- able speed control.

The push buttons on the control panel are used to:

  • Switch between fresh air and recirculating air inlet modes

  • Request for A/C activation

  • Activation of the rear window defogger

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