Greenheck Fan Centrifugal Utility Fans SFB - Manual (Page 63)

63
SWB- -
Series SWB Specifications
Model SWB Series 100, 200 and 300
Belt Drive Utility Fans
Supply, exhaust and return air fans shall be of the
belt-driven utility fan type in AMCA Arrangement 10
with a single-width, single-inlet housing, in clockwise
or counterclockwise rotation as specified.
The housing shall be constructed of heavy gauge
galvanized steel on Series 100 models and includes
an airtight lock seam. Series 200 and 300 models
shall have a heavy gauge painted steel housing or
optional aluminum housing on Series 200. Housing
shall have an airtight lock seam or optional welded
seam. The housing shall be field rotatable to any
of the eight standard discharge positions. To
prevent vibration and to rigidly support the shaft
and bearings, Series 100 and 200 drive frame and
bearing supports shall be constructed of welded
steel members coated with Permatector™ and Series
300 shall be constructed of reinforced heavy-gauge
galvanized steel.
The fan wheel shall be of the non-overloading
backward-inclined, centrifugal type. The fan wheel
shall be constructed of heavy-gauge aluminum on
Series 200 fans sizes 206-210 and all Series 100
fans. Series 200 and 300 wheels shall be constructed
of heavy-gauge steel with optional aluminum on
Series 200 fans size 212 and larger and all Series 300
sizes. Series 300-AF fans shall have an aluminum
backward-inclined airfoil wheel.
Wheels shall be statically and dynamically balanced.
The wheel cone and fan inlet cone shall be carefully
matched for maximum performance and operating
efficiency.
Motors shall be heavy-duty ball bearing type matched
to the fan load and furnished at the specified voltage,
phase and enclosure. The fan shaft shall be ground
and polished solid steel mounted in heavy-duty pillow
block ball bearings. Bearings shall be selected for
a minimum L
10
life in excess of 100,000 hours (L
50
average life of 500,000 hours) at maximum cataloged
operating speed. Drives shall be sized for a minimum
of 150% of driven horsepower. Pulleys shall be of
the fully machined cast iron type, keyed and securely
attached to the fan and motor shafts. The motor
pulley shall be adjustable for final system balancing
for applications with 10 hp or less motors.
All fans shall bear the AMCA Air Performance seal.
Utility fans shall be model SWB (with backward-
inclined wheels) as manufactured by Greenheck Fan
Corporation in Schofield, Wisconsin, USA.
Series 100
Series 300
Series 200