Powerfoil
PowerfoilPlus
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14. Wire the Fan
WARNING: To reduce the risk of electric shock, wiring should be performed by a qualified electrician!
Incorrect assembly can cause electric shock or damage the motor and the controller!
Make sure power wiring is routed to the installation site. See “Wiring Diagrams” for instructions and guidelines
on wiring your fan.
If you are remotely mounting the variable frequency drive (VFD), skip this section and refer to
the mounting instructions that came with the kit.
Minimum supply circuit size
Refer to the chart below to make sure the minimum supply circuit size is suitable for your fan VFD.
Fan Diameter
Minimum Supply Circuit Size
8 ft
(2.4 m)
20 A @ 200–240 V, 1 Φ
10 A @ 200–240 V, 3 Φ
10 A @ 400–480 V, 3 Φ
10 A @ 575–600 V, 3 Φ
10–24 ft
(3–7.3 m)
30 A @ 200–240 V, 1 Φ
20 A @ 200–240 V, 3 Φ
10 A @ 400–480 V, 3 Φ
10 A @ 575–600 V, 3 Φ
15. Install the Airfoils
Disconnect power to the fan before installing the airfoils.
A. Attach winglets to airfoils
Note: Examine each airfoil to ensure the AirFence is still securely attached before proceeding.
Fasten a winglet to each airfoil using the Winglet Hardware. Both a Phillips head and flat head screwdriver are
required to properly secure the fasteners. Secure winglets to all eight airfoils before installing the airfoils.
Winglet Hardware:
a. (8) 10-24 x 3/4” Barrel
b. (8) 10-24 x 1/2” Bolt
b
a
b
a
Winglet
Winglet
