Section 5, Installing Fan Heaters
5-4 Installation Manual for Oasis SCH33 Heating System
5.4 Mounting Locations
Carefully choose the mounting locations of your fans:
• install the fans so heat is evenly spread throughout each
zone.
• Provisions 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 cabin heater fans come with loose or built in 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 the
zone it is monitoring as this can cause false temperature
readings. Mount the thermostat on an interior wall or
bulkhead, away from windows, and heating fans.
5.5 Procedure
After choosing the appropriate mounting location and
configuration:
Mount the fan using #10 sheet metal screws or wood screws,
see Figure 5-2: Mounting a low-profile Cabin Fan.
If you are using ducting and a dual air outlet plate for any
fan, limit the total length of duct for both outlets to 36” for
optimum air output.
Select the appropriate mounting location for the thermostat,
as well as any fan speed switches. Instructions for wiring the
thermostats to the heater are in Sec. 6 – Electrical System.
If an individual cabin fan draw is larger than the 5 Amp limit,
you must install a separate relay to power the fan. This relay
will use the existing fan circuit as a signal and must be wired
to a secondary power source (fused from the battery +’ve).
not the heater’s control board). See Figure 5-3.
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