8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
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WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
Mounting Controller
KBDA Controller
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Mount to a wall using suitable hardware with a bolt or screw diameter of 1/4’’ (0.64 cm).
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KBDA fan controllers are provided with knock outs on the bottom only. Do not drill the top and/or sides of the enclosure.
Allen-Bradley Controller (Optional)
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Mount to a wall using suitable hardware with a bolt or screw diameter of 1/4’’ (0.64 cm).
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For single fan controllers, the mounting hole pattern is 7” x 17 7/8” (17.8 cm x 45.4 cm). For multi-fan controllers, the mounting hole
pattern is 11” x 17 7/8” (27.9 cm x 45.4 cm).
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If mounting to a vertical column use a strut, spring nuts and beam clamps with 1/4-20 hardware (not provided).
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The Allen-Bradley controllers do not provide pre-punched conduit knock-outs. Big Ass Fans recommends the use of a hole punch
to create conduit knock-outs. Before drilling top and/or sides of enclosure, cover the VFD with a protective material to prevent loose
metal shards from entering controller.
General Mounting Guidelines
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Do not mount any controller adjacent to or above a heat source or heat producing equipment.
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For Allen-Bradley controller, ambient temperature shall be between 14º F (-10º C) and 104º F (40º C). For KBDA controllers,
ambient temperature shall be between 14º F (-10º C) and 122º F (50º C).
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Do not expose the controller to a corrosive atmosphere, moisture, or direct sunlight.
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When mounting the controller, keep in mind that the fan should be visible from the controller.
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A minimum distance of 6” (15.2 cm) should be maintained between fan controllers.
Controller Storage
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Store within an ambient temperature range of -40 to +85° Celsius.
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Store within a relative humidity range of 0 to 95%, non-condensing.
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Do not expose to a corrosive atmosphere.
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If the controller has been in storage or powered down for more than one year, the user should apply AC supply power to the
controller for a period of two hours prior to operation in order to recondition the internal DC bus capacitors.
Input Power Conditioning
Line reactors should be installed if AC supply is subject to any of the following:
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Low line impedance
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Frequent power interruptions
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Phase-to-ground voltage in excess of 125% nominal phase-to-phase voltage
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Distribution system exceeds established kVA limit for your specific model (contact Big Ass Fans for more information).
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Power factor correction capacitors
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Intermittent noise spikes (lightning)
