Wiring Diagram, Renewal Parts Identification

WIRING

1.Connect heater only to the voltage, frequency and phase spec- ified on the nameplate.

2.All wiring should be done according to local and National Electric Codes.

3.Make supply connections to marked heater terminals using wire suitable for 75°C. (Type RH-RW or equivalent).

4.Conduit attachment to heater:

a.Run conduit(s) to conduit entrance plate. (See Figure 1).

b.Mark plate where conduit(s) will enter plate.

c.Remove screws and plate.

d.Punch conduit entrance plate with a hole(s) to accommo- date the required conduit(s).

e.Reinstall plate and install conduit(s) to plate.

Fan Interlock. The fan circuit must be interlocked with the control circuit of the heater. Refer to the wiring diagram in the heater terminal box.

Hazard of electrical shock. Any installation involv- ing electric heaters must be grounded to earth to eliminate shock hazard.

Control Ratings

Hazard of severe shock. Disconnect all power to heater before servicing.

The appropriate wiring diagram will be supplied with each heater.

Conduit Entrance Plate

Main Disconnect

Transformer Fusing

Air Flow Switch

Transformer

Fintube Heating

Element

Static equalizers (not shown) maintain uniform air flow across the heater face when individual fintubes are omitted.

Contactor

Air Flow Switch Automatic and Manual Reset	Fusing
(not shown)

Contact your local Chromalox Sales Office with Complete heater catalog number or part number.

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