BIG ASS FANS 8'-24' Powerfoil X, Руководство по установке

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8’ - 24’ POWERFOIL® X
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WWW.BIGASSFANS.COM ©2011 DELTA T CORP. DBA BIG ASS FAN CO. ALL RIGHTS RESERVED
8’ - 24’ POWERFOIL® X
Preparing the Work Site
Mechanical Installation
• A 24-ft (7.3 m) Powerfoil fan (our largest model) weighs, at maximum, 475 lbs (215 kg). A scissor lift, or other suitable means for
lifting the weight of the fan, and up to two installation personnel will be required.
• Big Ass Fans can only be hung from an I-beam or angle irons. If mounting from an I-beam, the I-beam must be part of the existing
building structure. For specific requirements, see installation instructions starting on p. 11. Do not mount the fan to a single purlin,
truss, or bar joist. Consult a structural engineer for installation methods not covered in the manual.
CAUTION: Mount fan only to an
angle iron or I-beam.
Angle Iron
I-Beam
• To reduce the risk of injury to persons, install the fan so that the blades are at least 10 ft (3.05 m) above the floor.
• The fan installation area must be free of obstructions such as lights, cables, sprinklers, or other building structure. The fan blades
should have at least 2 ft (0.61 m) of clearance from any obstructions.
• Big Ass Fans recommends that a fan be installed at a distance (from HVAC equipment) no less than 2x the fan’s diameter when
measured from the center of the fan to the equipment. If the fan is mounted lower than an HVAC supply and return diffuser’s
discharge, the fan should be installed no less than 2x the fan’s diameter from the diffuser when measured from the center of the
fan to the diffuser. If the fan is mounted at the same height or higher than a downward discharge diffuser, the fan is recommended
to be installed no less than 1x the fan’s diameter from the diffuser when measured from the center of the fan to the diffuser.
• The distance between multiple fans should be no less than 2.5x the fans’ diameter when measured from the centers of the fans.
• The mounting system must be able to withstand the torque forces generated by the fan. A 24-ft diameter fan generates nearly 300
ft·lb (406.7 N·m) of torque during operation.
• Fans mounted on lightweight I-beams (common in steel buildings) could cause the beam to flex and the fan to move significantly
during operation. If this flexing causes a clearance problem, we suggest installing a stiffening strut to a nearby beam.
• If the fan’s extension tube is 4 ft (1.2 m) or longer, the fan’s lateral movement must be secured using guy wires (see p. 19 for more
information). If the fan is close to any building fixtures it is recommended to secure the fan with guy wires as a safety measure.
• If installing a VESDA system, refer to the VESDA Installation Guide BEFORE hanging the fan.
Electrical Installation
• 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!
• The installation of a Big Ass Fan must be in accordance with the National Electrical Code, ANSI/NFPA 70-1999, and all local codes.
• AC supply feeds for one fan controller may share the same conduit with AC supply feeds for one or more controllers.
• All unused conductors that share a conduit with the AC supply feeds must be grounded on both ends.
• If required, a local disconnect should be installed per NEC and all local codes.
• Refer to specifications on p. 24 for appropriate circuit requirements.
• Each fan requires dedicated branch circuit protection.
• To avoid damage to the VFD and fan controller, test the VFD and fan controller with a test cable before wiring the CAT 5 cable!