Instructions / Assembly

SUPPLY POWER GUIDELINES

Before beginning fan installation, route power wiring to the VFD installation site. Refer to the minimum supply

circuit requirements for your fan size below.

TOOLS AND EQUIPMENT

A suitable means for lifting the weight of the fan, such as a scissor lift, at least two personnel, and the following

tools will be needed. Depending on your application, additional tools may be required.

☐ Standard wrench set

☐ Standard socket set and ratchet

☐ Torque wrench capable of 40 ft·lb (54.2 N·m)

with 3/4” (19 mm) and 1/2” (13 mm) sockets

☐ Phillips and ﬂat head screwdrivers

☐ Standard allen wrench set

☐ 1/4” (6 mm) nut driver

☐ 5/16” (8 mm) nut driver

☐ #10 to #14 AWG strippers

☐ Medium channel locks

☐ Multimeter

☐ Level

Diameter Minimum Circuit Size

14 ft (4.3 m) 20 A @ 100–125 V, 1 Φ

1. All VFDs produce three-phase output power regardless of input phase.

Power wiring guidelines

Dedicated Branch Circuit Protection. Each fan requires dedicated branch circuit protection.

Conduit. VFD output/motor input leads cannot share a conduit with any other controller’s AC supply feed.

Local Disconnect. If required, a local disconnect should be installed per all national and local codes.

Manual Disconnect. To satisfy some local code requirements, it may be necessary to install a manual

disconnect at the fan motor location when the fan is not within line-of-sight of the controller.

Lead Extension. If you need to extend the VFD output/motor input leads, use stranded wire.