Installation manual

of the heater is free of loose debris or shipping

materials. Verify that the blower is rotating in the

right direction. For 3 Phase motors, interchange

any two leads to reverse rotation. For single phase

motors refer to instructions on motor.

There are four wires that are standard with every unit. They are as follows:

H Black 120V Hot

N White 120V Neutral

1 Blue 120V Supply to remote starter and/or heat shut off switch.

2 Brown 120V Return wire from remote heat shut off switch.

The H and N wires are required for all units to supply power to the control circuit. Without these

wires the heat function will not work! Wires 1 and 2 should be individually capped off if there is no

remote starter or heat shut off switch.

There may be some additional option wires with this unit. They are as follows:

8 Gray 120V Airflow indication (may be used for exhaust interlock)

11 Red 120V Burner on indication

33 Yellow 120V Safety lockout indication

T4 & T5 Red/Black DC shielded cable for remote temperature control

All the previous wires are for the control circuit and are located in the control conduit.

The following are the designations for the motor wires

Black Motor line voltage

White 120V Neutral (If single Phase)

Green Earth ground

Please consult the factory if you have any questions or concerns before applying power to the unit.