Greenheck SAF-112 Installation Manual
Centrifugal Roof Supply Fan
Model SAF
Belt Drive
BUILDING VALUE IN AIR.
July
2010
Model SAF - Supply Air Fan
Greenheck’s Model SAF is a roof mounted supply
air fan designed to provide non-tempered, filtered
make-up air. These belt drive fans are available in
five sizes.
• Double-width forward-curved centrifugal wheel
results in high efficiency and low sound levels.
• Performance ranging from 820 cfm (1,393 m3/hr)
to 14,000 cfm (23,786 m3/hr) with up to 3.5 in. wg
(869 Pa) of static pressure.
• Permanent washable aluminum filters result in
many years of reliable use.
• Performance as cataloged is assured. All fan
sizes have been tested in an AMCA Accredited
Laboratory and are licensed to bear the AMCA
Sound and Air Performance Seal.
• Fan components are subjected to extensive life
testing, assuring you the fans will provide many
years of reliable performance.
SAF models are Listed for
electrical (UL/cUL 705)
File No. E40001.
Greenheck Fan Corporation certifies that the model SAF
fans shown herein is licensed to bear the AMCA seal.
The ratings shown are based on tests and procedures
performed in accordance with AMCA Publication 211 and
AMCA Publication 311 and comply with the requirements
of the AMCA Certified Ratings Program. The certified
ratings for model SAF are shown on pages 7 thru 11.
Leading
Outstanding
Customer Service
Your local Greenheck representative has a wealth
of industry and product knowledge to answer
your questions. Our representatives receive the
latest product information and can have orders
processed directly to our factory. With our direct
order processing system, we can ship orders as
fast as the next business day. With Greenheck’s
experienced staff, we can answer questions and
provide solutions.
Table of Contents
Standard Construction Features .......... 3
Options and Accessories ................ 4
Typical Installation ..................... 4
Commercial Kitchen Ventilation ........... 5
Fan Sizing ............................ 5
NFPA Considerations ................... 5
Service ............................... 6
Model Number Code.................... 6
Belt Drive Performance................7-11
Typical Specifications .................. 12
Warranty ............................ 12
2
Edge
Technical
Support
When product and IOM (Installation, Operation and
Maintenance Manual) information is needed, our
products are supported by the industry’s best product
literature, electronic media and Computer Aided
Product Selection (CAPS) program. You’ll also find this
information on our website at www.greenheck.com
Our national and international representative
organizations provide personal service and
expertise. To locate your nearest Greenheck
representative, call 715-359-6171 or visit our
website at www.greenheck.com
Greenheck’s Quick Delivery
Program provides many
options to help you meet
your project’s schedule.
Stocking warehouses and
distribution centers around
the world ensure sameday pickup and same-day
shipment for orders in by
2 p.m. (CST). Hundreds
of custom products can be manufactured through
Quick Build in just days.
The Greenheck Stock & Quick Build Catalog is a
great resource for specific options and accessories
available with QD and QB fans.
Standard Construction Features
6
5
4
3
2
1
Nameplate - Permanent stamped aluminum
plate for exact model and serial identification.
7 8
1
9
10
11
12
1314
Housing - Fan housing and cover are
9
constructed of heavy gauge galvanized steel.
2
Vibration Isolation - Isolators support the drive
frame and blower assembly for long life and
minimal sound transmission into
the building.
3
Lifting Lugs - Various lifting points located on
the drive frame to provide easy lifting.
4
Steel Wheel - Double-width/double-inlet
forward-curved wheel is statically and
dynamically balanced and constructed of heavy
gauge galvanized steel.
5
Disconnect Switch - NEMA-1 switch is factory
mounted and wiring is provided from the motor
as standard (other switches are available.) All
wiring and electrical components comply with
the National Electric Codes (NEC) and are
either UL Listed or recognized.
Access Panels - Cover and side access
6
panels are easily removed for access to motor
compartment and drive assembly.
7
Motor - Carefully matched to the fan load to
provide years of trouble-free operation.
8
Drive Assembly - Belts, pulleys and keys
are oversized 150% of driven horsepower.
Machined cast pulleys are adjustable for final
system balancing. Belts are static free and
oil resistant.
Fasteners - Galvanized weather resistant
10
fasteners are used to secure both top and side
access panels.
Filters - Permanent, washable aluminum
11
one-inch filters are standard. Filter racks are
designed to allow filters to slide out easily.
Curb Cap - Curb cap has prepunched mounting
12
holes to ensure correct attachment to the
roof curb.
Bearings - Bearings are permanently sealed and
13
lubricated, 100% factory tested and designed
specifically for air handling applications with a
minimum L
Fan Shaft - Fan shaft is precision ground,
14
polished and sized so the first critical speed is
at least 25% over maximum operating speed.
Blower Outlet - Blower outlet is flanged to
provide built-in duct adapter for mounting of
ductwork directly to the fan base.
Belt Tension - Pivoting mount with screw
adjustment is provided on the drive frame for
ease of maintaining belt tension.
life in excess of 200,000 hours.
50
3
Options and Accessories
A sq.
C
C
B
Roof Curbs
Prefabricated roof curbs reduce installation time
and costs by ensuring compatibility between
the fan, the curb and roof opening. All curbs
are insulated. A wide variety of
roof curbs are available,
including: flanged,
pitched and soundabsorbing.
Curb Extension
Extensions raise the fan discharge above the roof
line and provide an accessible mounting location
for dampers. Insect screen bases, constructed
with a removable
fine mesh, are
recommended for
applications where
insect entry must
be prevented.
Curb Seal
Rubber seal between fan and curb is available to
ensure proper sealing when attached to a curb.
Disconnect Switches
A wide selection of
NEMA rated switches
are available for positive
electrical shutoff and
safety, including: general,
dust-tight, rainproof
and corrosion-resistant.
Optional switches ship
loose with unit.
Duct Adapters
Duct adapters fit over the roof curb and support the
top of the duct allowing ductwork
to be completed before the fan
is set in place. Duct adapters
also limit performance
losses by directing
airflow into
the duct.
Fan Size A B C
110 28
112 32
115 32
118 38
120 44
All dimensions in inches(millimeters).
1
⁄2 (724) 141⁄4 (362) 71⁄8 (181)
1
⁄2 (826) 181⁄4 (464) 71⁄8 (181)
1
⁄2 (826) 241⁄4 (616) 41⁄8 (105)
1
⁄2 (978) 301⁄4 (768) 41⁄8 (105)
1
⁄2 (1130) 361⁄4 (921) 41⁄8 (105)
Dampers
Designed to prevent outside air from entering back
into the building when fan is off. Flangeless intake
dampers are designed for horizontal mounting
inside ductwork. Includes
either gravity or motorized
dampers. Damper sizes
are shown on each
performance data page.
Typical Installation
Prepunched mounting holes and 21⁄2 inch skirt to
aid in installation
Ductwork (by others)
Duct adapter (optional) allows ductwork to be
completed prior to setting unit on curb
Roof curb
Roof opening dimensions can be found with the
4
dimensional data on the performance pages.
Note: In cases where extreme snow depths may be
encountered, a curb extension may be required to
raise unit or condensation pans may be required
in ductwork.
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