Hearth & Home Technologies • PIER-DV36IN, ST-DV36IN Installation Manual • 2658-980 Rev. C • 4/22
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Figure 8.4 Fan Location, Fan and Rheostat Wiring
Installation (Without Optional Remote)
1. Install and wire the fan in appliance as shown in Figure
8.4 and Figure 8.5.
2. Wire the fan temperature sensor and adjustable speed
control (rheostat switch) according to the instructions
provided with the fan.
3. Attach rheostat switch to the valve bracket.
BLUE
RHEOSTAT
SWITCH
TEMPERATURE
SENSOR
JUNCTION BOX
Figure 8.5 Detail of Fan Wiring with Rheostat
FAN
LOCATION
THREADED STUD USED TO
INSTALL TEMPERATURE SENSOR
RHEOSTAT
SWITCH
TEMPERATURE
SENSOR
JUNCTION
BOX
VALVE
BRACKET
Temperature Sensor Wiring for Optional Fan
If the fan will not be installed for operation with the IFT-
RC400, the temperature sensor will need to be installed.
See Figure 8.4 for location of the temperature sensor and
rheostat switch.
• The power supply for the appliance must be brought into
the junction box.
• Install rheostat switch in location as seen in Figure 8.4.
• Connect temperature sensor switch wire and rheostat
switch wires to junction box as shown in Figure 8.5.
C. Fan (Optional)
Installation (With Optional Remote)
1. Wire the fan as shown in Figure 8.3.
2. Locate the fan as shown in Figure 8.4.