Section 5, Installing Fan Heaters
5-2
The Oasis
®
Chinook Heating System
5.2
Fan System Operation
ITR fans consist of a 12 VDC brushless fan and heater coil
similar to a radiator.
When the heater unit comes on, the fan draws ambient air
from the interior, blows it through the heater coil and back
into the interior through a vent. There must be an inlet and
outlet vent for each fan unit.
Features
·
The Zone Control Board will not run the fans unless
the coolant inside the Oasis
®
Chinook tank is above
120F. However, during the initial startup, the coolant
in the lines will be lower than 120F until it has had a
chance to mix with the coolant in the tank. ITR heater
fans can be supplied with a built-in aquastat, which
prevents fan operation until the system has reached
minimum operating temperature. Figure 5-1 shows
how to wire up the aquastat in a fan.
Figure 5-1: Wiring the Fan’s Aquastat
·
If a “passive” radiant heat system is desired (i.e.
baseboard or fin and tube configurations), consult ITR
for recommended installation procedures and design.
