ITR POLAR HD, Installation And Operating Manual

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Section 8, Operating the Heating Module
International Thermal Research 8-7
• Turn the engine preheat switch on the Remote Operating
Panel to the ON position with the burner or AC switch on. The
engine preheat pump and coolant pump will be activated once
the POLAR™HD Heating Module is in its set operating
temperature range. The engine will start to be preheated by
the POLAR™HD Heating Module.
• Note: An engine preheat pump does not come supplied with
the Distribution Module. The power and ground for the pump
is available from the Distribution Module.
Engine Heat Used for Domestic Water or Space Heating
• Start the vehicle engine and let it come up to the normal
operating temperature. Turn the burner switch on the
Remote Operating Panel to the ON position. The POLAR™HD
Heating Module will come up to the set operating temperature
range and will cycle OFF. The heat from the vehicle engine
will be transferred from the engine to the domestic water and
space heating loop.
8.9 Functions of the Remote Operating
Panel
• The POLAR™HD Heating Module’s Remote Operating Panel,
Figure 8-3: Remote Operating Panel, contains one ON/OFF
burner switch, one triple position AC element switch, one
ON/OFF engine heat switch to control the optional engine pre-
heat pumps, and four LED’s indicating Burner activation, AC
element activation (CH50 used in tandem with Distribution
Module), module fault, and zone fault.