Section 5, Installing Fan Heaters
1
Mount the fan using #10 sheet metal screws or wood
screws.
2
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.
3
Select the appropriate mounting location for the
thermostat, as well as any fan speed switches. You will
wire these up to the Zone Control Board, see Section 9 -
Installing the Space Heating Module (Optional).
4
If the fan(s) require(s) more than 8 amps, install a
separate relay to power the fans. This relay will use the
existing fan circuit as a signal and must be wired to a
secondary power source (not the heater’s Control Board).
See Figure 5-3: Installing a Relay for Additional Fan
Amperage.
5
To install plumbing lines to the fans, see Section 7 –
Plumbing the System.
Figure 5-2: Mounting a Spacesaver Fan
International Thermal Research
5-5
