Mount The Variable Frequency Drive (Vfd) - Bigass 4900 Manuel D'installation

9. Mount the Variable Frequency Drive (VFD)

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! Hazard of electrical
shock!
WARNING: The installation of a Big Ass Fan must be in accordance with the requirements specified in this
installation manual and with any additional requirements set forth by the National Electric Code (NEC),
ANSI/NFPA 70-2014, and all local codes. Code compliance is ultimately YOUR responsibility!
A. Select a Mounting Location
Adhere to the following guidelines when selecting the VFD location:
• Install the VFD on a flat surface that is readily accessible, free from vibration, and where there is adequate
distance from foreign objects or moving equipment.
• Do not mount any VFD adjacent to or above a heat source or heat-producing equipment.
• The ambient temperature must be between 14°F (-10° C) and 122° F (50° C) with a relative humidity range of 0
to 95% non-condensing.
• Do not expose the VFD to a corrosive atmosphere or direct sunlight.
• When mounting the VFD, keep in mind that the fan should be visible from the VFD.
• A minimum distance of 6" (15.2 cm) should be maintained between VFDs.
B. Mount the VFD
Store the VFD within an ambient temperature range of -40° F to 185° F (-40 °C to 85° C) and a relative humidity
range of 0 to 95%, non-condensing. If the VFD has been in storage or disconnected from power for more than
one year, apply AC supply power to the VFD for a period of two hours prior to operation in order to recondition
the internal DC bus capacitors.
Mount the VFD to the wall using a #8–#10 screw. If you need to extend the controller output/motor input leads,
use stranded wire. Refer to the diagrams below for mounting hole dimensions.
6.28" (160 mm)
5.9" (150 mm)
AUTO FWD
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