Heatmor 400-4S, User Manual

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CHAPTER 18
ELECTRICAL
Principles
The HEATMOR
TM
furnace comes with all internal components pre-wired. Provision is made for easy
attachment of the main electrical power supply to the HEATMOR™ controls. Electrical outlets at the rear of the
HEATMOR™ accommodate plugging in circulating pumps.
Electrical Supply
Have a licensed electrician make all electrical connections.
Required electrical power supply to the HEATMOR™ is 115 volts, 60HZ, 1 phase.
1) Use only 14/3 electrical wire.
2) The 14/3 wire will actually contain 4 wires; a) black, b) white, c) red, d) ground
3) If the electrical wire is being buried in the trench, be certain to use electrical wire approved for direct
burial.
4) Do not place electrical wire in close contact with the supply and return lines.
5) The electrical supply wire should be connected to it’s own circuit.
Electrical Supply Junction Box
Principles
The electrical components of the HEATMOR™ furnace are pre-wired at the
factory. All the wiring becomes centralized in the junction box.
Connecting the main power supply to the HEATMOR™:
1) Remove the plate on the Electrical Supply Junction Box.
2) Insert the electrical supply wire through the hole in the box
bottom(punch out the hole if it is not present) and route back into the
supply junction box.
3) Basically, the black wires are connected, the white wires
are connected, the ground wires are connected, and the red wires
are connected.
4) Tighten the screw clamp in the electrical connector to hold the
supply wire firm.
5) Replace the plate on the Electrical Supply Junction Box.
Maintenance
• Keep the junction box clean and dry.
• Keep the cover plate firmly attached at all times.
• Make certain the MARR connectors (wire nuts) are properly installed and holding tight.
Double Outlets / Electrical
Supply Junction Box