Belt Drive Specifications - Greenheck SQ Brochure & Specs

Belt Drive Specifications

Duct mounted supply, exhaust, or return fans
shall be of the centrifugal, belt driven, inline
type. The fan housing shall be of the square
design constructed of heavy gauge galvanized
steel or aluminum and shall include square
duct mounting collars.
Fan construction shall include two removable
access panels located perpendicular to the
motor mounting panel. The access panels must
be of sufficient size to permit easy access to
all interior components.
The fan wheel shall be centrifugal backward
inclined, constructed of aluminum, and shall
include a wheel cone carefully matched to
the inlet cone for precise running tolerances.
Wheels shall be statically and dynamically
balanced.
Motors shall be heavy-duty ball bearing
type carefully matched to the fan load and
furnished at the specified voltage, phase, and
enclosure. Motors and drives shall be mounted out of the airstream. Motors shall be readily accessible for
maintenance.
Precision ground and polished fan shafts shall be mounted in permanently sealed, lubricated pillow block
ball bearings. Bearings shall be selected for a minimum L life in excess of 100,000 hours (L average life
10 50
in excess of 500,000 hours) at maximum cataloged operating speed.
Drives shall be sized for a minimum of 150 percent of driven horsepower.
Pulleys shall be of the fully machined cast iron type, keyed, and securely attached to the wheel and motor
shafts.
Motor pulleys shall be adjustable for final system balancing. A NEMA-1 disconnect switch shall be provided
as standard, except with explosion resistant motors, where disconnects are optional. Factory wiring shall be
provided from motor to the handy box.
All fans shall bear the AMCA Certified Ratings Seal for both sound and air performance.
Each fan shall bear a permanently affixed manufacturer's nameplate containing the model number and
individual serial number for future identification.
Fans shall be model BSQ as manufactured by Greenheck Fan Corporation of Schofield, Wisconsin, USA.
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