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
Installation Techniques: Multiple Fan Controls
CAUTION: KBDA controllers must be installed on a branch circuit with one fused disconnect per controller and/or circuit
breaker per controller.
•
The total maximum motor lead length for all Big Ass Fan multi-fan controllers SHALL NOT EXCEED 1,200 ft (366 m).
•
MC Cable may not be used for controller output/motor leads!
•
Do not use solid core wiring of any size or insulation class for controller output/motor leads!
•
Do not connect multiple motors on a common ground return. Motors should each have a dedicated ground return back to the fan
controller. See “Grounding” on the following page.
•
Acceptable Shielded Cable types (p. 31) may be installed in long parallel runs without risk of “cross-talk” when properly installed
in a cable tray.
WARNING: This installation
method may only be used
for control boxes with
single VFDs! For control
boxes with multiple VFDs,
see above diagram. For
more information, please
contact Customer Service
at 1-877-BIG-FANS.
To Fans
From Electrical
Distribution Panel
To Fans
From Electrical
Distribution Panel
From Electrical
Distribution Panel
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
To Fan
