Greenheck Fan SWB 100, SFD, SWB 200, SWB 300 User Manual
Part #455308
®
Centrifugal Utility Fans
Model SWB - Series 100, 200 and 300
Models SFB and SFD
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety
information. Failure to comply with instructions could result in personal injury and/or property damage!
Model SWB
Series 300
Model SWB
Series 200
Model SWB
Series 100
Model SFB
Table of Contents
Motor and Drive Installation
(Units Shipped from Stock) ................ 2
Installation ............................... 3
Affect of Installation on Performance ......... 3
UL/cUL 762 - Restaurant Exhaust ............ 4
Pre-Starting Checks ......................4-5
Belt Drive Fan Maintenance ................. 6
Bearing Lubrication Schedule ............... 6
Motor Maintenance (Belt and Direct Drive) ..... 6
Parts List ................................ 7
Troubleshooting Chart ..................... 8
Model SFD
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Centrifugal Utility Fans
1
Motor and Drive Installation Instructions
Model SWB units are shipped from stock without motors or drives.
1. Adjust motor pulley to its closed position for
maximum fan speed or increments of 1/2 turn
open (maximum of 5 turns open) for reduced fan
speed. Tighten set screw on flat area only.
4. Install shaft pulley to fan shaft.
2. Install motor pulley to the motor shaft and install
motor to the motor plate. Pre-punched holes are
provided for most common motor frame sizes.
3. If supplied, install taperlock bushing into
shaft pulley.
Centrifugal Utility Fans
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5. Install drive belt(s). Belts should not be forced
over pulleys. Align motor and shaft pulleys with a
straight edge. Tighten all set screws.
6. Adjust belt tension.
See page 6 for belt tensioning instructions.
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Installation
Affect of Installation on Performance
Inspect the unit for any damage and report it to
the shipper immediately. Also, check to see that all
accessory items are accounted for.
Move the fan to the desired location and fasten
securely through mounting holes provided in the base
angles. The unit must be set level (shimming may be
necessary). Flexible duct connections and vibration
isolators should be used where noise is a factor.
The motor voltage and ampere rating must be
checked for compatibility with the electrical supply
prior to final electrical connection. Supply wiring to the
fan must be properly fused, and conform to local and
national electrical codes.
The discharge is factory set as specified by customer
order, however, it can be rotated to other discharge
positions in the field if necessary. Removal of the
housing bolts allows the discharge to be rotated to
the clockwise positions below. For TAD, BD and BAD
discharge positions, a portion of the frame angle must
be removed.
Clockwise rotation shown. Counterclockwise
discharge positions are a mirror image of those
shown. Fan rotation is always specified from the
drive side of the housing.
Restricted or unstable flow at the fan inlet can cause
pre-rotation of incoming air or uneven loading of the
fan wheel, yielding large system losses, increased
sound levels and structural failure of the fan wheel.
Free discharge or turbulent flow in the discharge
ductwork will also result in system effect losses.
The examples below show the system layout and
inlet and discharge configurations which can affect
fan performance.
Discharge Configurations
7o MAX.
POOR
POOR
FAIR
POOR
GOOD
FAIR
Discharge Positions
CW BH CW BAU CW TAUCW UB
CW TH CW TAD
CW DB
CW BAD
POOR
POOR
POOR
Turning
Varies
FAIR
FAIR
POOR
One
Impeller
Dia.
Should be at least
1/2 Impeller Dia.
GOOD
GOOD
Not Greater than
o
Including Angle
60
FAIR
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Centrifugal Utility Fans
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3
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