FHC-1D user manual
Phason
4
2009-06-15
Wiring the FHC-1D
1.
Set the voltage switch
A
to the correct position for the line voltage used (120 or 230 VAC).
2.
Set jumper
D
to the correct position for the temperature units, Fahrenheit or Celsius, you want
to use.
3.
Connect the wires as shown below.
Connecting equipment to the heater interlock
The heater interlock output is a normally-open relay contact that switches a heater or furnace ON or
OFF. The relay contacts close when the temperature is 2°F below the TEMP SET.
Connect the wires as shown in the following diagram. Use power contactors (not supplied) for
electric heat or heat lamps. Connect directly for most gas furnaces.
