ITR POLAR HD, Installation And Operating Manual

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Section 8, Operating the Heating Module
International Thermal Research 8-9
the coolant in the POLAR™HD Heating Module has achieved a
preset temperature.
Burner LED (Green)
• When ON, indicates the diesel burner has been activated.
AC Heat LED (Green)
• When ON, indicates the 120 VAC immersion elements(s) are
activated.
Module Fault LED (Red)
• When ON, indicates the POLAR™HD Heating Module has
faulted. The specific fault can be identified by examining the
POLAR™HD Heating Module Control Panel located on the front
of the POLAR™HD Heating Module. There are indicator LED’s
on the panel that are used for diagnostics. Refer to the
description of the POLAR™HD Heating Module Control Panel
for further details.
Zone Fault LED (Red) (Functional with Distribution Module
Equipped Models Only )
• When ON, indicates the space heating zone(s) has faulted.
The specific fault can be identified by examining the
Distribution Module Zone Control Panel (optional) located
beside the POLAR™HD Heating Module. There are indicator
LED’s on the panel that indicate the problem. Refer to the
description of the Distribution Module Zone Control Panel for
further details.
8.10 Functions of the Heating Module
Control Panel
• The POLAR™HD Heating Module’s Control Panel, Figure 8-2:
Heating Module Main Control Panel, contains three push
buttons: ON/OFF power, Bypass, and Reset. In addition, it
contains nine LED’s indicating Power, AC Heat, Compressor,
Fuel Pump, Combustion Fan, Igniter, Flame Out, Voltage and
Low Water.
Power Button