ITR POLAR HD, Installation And Operating Manual

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Section 5, Installing Fan Heaters
5-4 POLAR™HD Heating Module
(e.g. you can use one fan to heat two different areas
by installing a dual air outlet plate).
5.3 What NOT to Do
• Don’t install more fans that require more heat than
the Heating and Distribution Module can produce.
Your system will not run effectively. If you choose to
use a higher-draw fan motor (more than 5 amps),
install a relay to handle the extra load; see Figure 5-3:
Installing a Relay for Additional Fan Amperage, other
than for cabin fan 1. Please note that cabin fan 1 can
supply 10 amps. Refer to Figure 9-10 for details.
• Don’t mount the return air outlet too close to the
fan’s air intake source.
5.4 Mounting Locations
Carefully choose the mounting locations of your fans:
• Locate the fans to evenly heat the zone.
• Provision must be made to protect water lines from
freezing.
• Install fan at floor level or very near floor level, in order
to optimize circulation.
• Allow a minimum 16 square inch (100 cm sq.) opening in
the fan heaters’ mounting compartment to allow sufficient
intake of air.
ITR’s Spacesaver fan (pictured at left) has two mounting
brackets welded to the side of the case. It is designed to be
mounted horizontally on a flat surface.
ITR’s standard cabin heater fan comes with loose steel
brackets. The fan can be mounted on the floor or on the
wall, either flat or on its side.
The thermostat should not be mounted on walls outside of
the zone because that could cause false temperature
readings. Mount on interior walls and bulkheads, away from
windows, heater vents and cabin fan heaters.
ITR can suggest
optimal fan locations
if you provide a floor
plan of your vehicle