Electrical Instructions

Before connecting power to the unit, read and understand the following instructions and wiring diagrams. Complete wiring diagrams are attached inside the door(s) of the unit.

All wiring should be done in accordance with the National Electrical Code ANSI/NFPA 70- latest edition and any local codes that may apply. In Canada, wiring should be done in accordance with the Canadian Electrical Code. The equipment must be properly grounded.

Electrical Location

Electrical Power Connection

Electrical Controls Door

CAUTION !

If any of the original wire must be replaced, the replacement wire must have a temperature rating of at least 105°C, except for energy cut-off or sensor lead wire which must be 150°C.

DANGER !

High voltage electrical input is needed for this equipment. This work should be performed by a qualified electrician.

Electrical Controls Door

Electrical Power

Connection

NV-45

NV-90-120

NOTE: Any wiring running through the NV unit in the airstream must be protected by flexible metal conduit, metal clad cable, or raceways.

Sequence for wiring NV unit:

For units without control centers:

The motor nameplate is to be used for determining the voltage and amperage required by the unit.

For units with control centers:

1.The unit’s nameplate states the voltage and total amperage required.

The main feeder supplying power to the unit should be sized for the label’s voltage and amperage.

2.The main power line should be connected to the disconnect switch. Make sure that the disconnect lugs are securely tightened.

3.Connect control panel wiring to terminal strip in the control center. Greenheck’s standard control voltage is 120/60/1.

4.When an optional convenience outlet is provided, a separate power supply must be provided to the receptacle. This circuit must be on a ground fault breaker.

CAUTION

Any wiring deviations may result in personal injury or property damage. Greenheck is not responsible for any damage to, or failure of the NV unit caused by incorrect final wiring.