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 atwww.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.
Page 3
Standard Construction Features
6
5
4
3
2
1
Nameplate - Permanent stamped aluminum
plate for exact model and serial identification.
78
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
Page 4
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 ABC
11028
11232
11532
11838
12044
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.
Page 5
Commercial Kitchen Ventilation
10 ft. min.
(3 m min.)
(914 mm min.)
Supply Air Fan
This drawing shows
a typical commercial
kitchen ventilation
system that consists
of a roof mounted
upblast exhaust fan
and a supply fan.
Exhaust fan variations
include sidewall exhaust
fan (also shown) when
penetrating the roof is not
practical. A utility blower is
recommended when higher
static pressure capability
is required to pull exhaust
through long duct runs
(typically 3 stories or more).
Model SAF
Outside Supply Air
Replacing Exhausted Air
Centrifugal Upblast Exhaust Fan
Model CUBE
Vented Curb
Model GPFV
Exhaust Hood
Model GHW
Centrifugal Exhaust
Sidewall Fan Option
Model CWB
Fan Sizing
Exhaust
When not specified by local codes,
the following guidelines may be used
to determine the minimum kitchen hood exhaust cfm.
Some local codes require 100 cfm/ft2 of hood area for
wall style hoods.
Supply
Recommended supply airflow is 90%
of exhaust cfm. The remaining 10%
of supply air will be drawn from areas
adjacent to the kitchen, which helps
prevent undesirable kitchen odors
from drifting into areas such as the
dining room.
Duty LevelType of Cooking Equipmentcfm/ft2 of Hood
LightOven, Range, Kettle50
MediumFryer, Griddle75
HeavyCharbroiler, Electric Broiler100
Static pressure typically ranges from 0.625 to 1.0 in. for one story buildings.
NFPA Considerations
The National Fire Protection Association specifies
minimum distance criteria for restaurant exhaust and
supply fans:
Option A
1. Roof deck to top of exhaust fan windband:
40 inches (1016 mm) minimum
2. Roof deck to top of curb:
18 inches (457 mm) minimum
3. Supply fan intake:
10 feet (3048 mm) minimum from all exhaust fans
40 in. min.
(1016 mm min.)
18 in. min.
(457 mm min.)
Cooking
Equipment
Option A
10 ft. min.
(3 m min.)
36 in. min.
Option B
For applications where the 10 feet (3048 mm) horizontal distance
cannot be met, vertical separation between exhaust and supply
must be at least 36 inches (914 mm).
Option B
12 in.
(305 mm)
5
Page 6
Service
Filtered supply fans require regular inspection and
cleaning (or replacement) of filters to ensure high
efficiency and performance. The model SAF is
designed to provide easy access to filters and
other components through a convenient removable
hood cover.
Removable Hood Cover
Removal of the hood cover allows easy access to all
fan components for inspection, cleaning, and service.
Serviceability
The internal drive components are easy to reach
and service with the hood removed.
Weather Resistant Fasteners
Easy to remove galvanized fasteners keep the
hood cover secured.
Filter Removal
Filter racks are designed so filters can easily slide out
for cleaning or replacement.
Model Number Code
The model number system is designed to completely identify the fan. The correct code letters must be
specified to designate belt or direct drive. The remainder of the model number is determined by the size
and performance selected from the following pages.
Damper Size = 14 x 14 (355 x 355)
Roof Opening = 161/2 x 161/2(419 x 419)
Curb Cap Thickness = 0.052 (1)
^Approximate Unit Weight = 181 lb. (82 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
1
/16
21
(535)
1
(38)
/2
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cfm
Model
Number
Fan
CFM
820
1000
0.1250.250.3750.50.6250.7511.1251.251.5
RPM432549
BHP0.050.08
Sones11.411.9
RPM476579672755
BHP0.070.110.140.17
Static Pressure in inches wg
MAXIMUM RPM = 1400
TIP SPEED = RPM x 2.91
MAXIMUM MOTOR FRAME SIZE = 145T
AVERAGE OUTLET VELOCITY = CFM/1.07
Sones10.011.711.310.5
RPM525616701780850
1180
BHP0.110.140.180.220.26
Sones10.511.211.511.211.2
RPM577660736809878941
1360
BHP0.150.190.230.280.320.37
Sones11.211.011.411.411.812.7
RPM632707777844908969108211341192
1540
BHP0.210.250.300.350.400.450.550.600.66
Sones12.011.711.711.812.713.715.218.319.5
RPM68875782288394310011110116212101307
1720
SAF-110
BHP0.280.330.380.430.480.540.650.710.770.89
Sones13.112.812.412.813.914.917.918.919.922
RPM74580987092798210361140118912381328
1900
BHP0.370.420.480.530.590.650.770.830.901.02
Sones14.214.113.714.515.416.418.619.52023
RPM80286492097410261075117412211266
2080
BHP0.470.530.590.650.710.770.900.971.04
Sones15.515.715.916.517.318.2202121
RPM8599209711023107111191210
2260
BHP0.590.660.710.780.850.921.05
Sones16.917.618.118.619.42122
RPM918976102510731120
2440
BHP0.720.800.870.941.01
Sones18.819.6202122
RPM97710321080
2620
BHP0.880.971.04
Sones212223
Performance certified is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B:
free inlet hemispherical sone levels.
7
Page 8
SAF-112
1
/16
32
(814)
29
(743)
1
/4
Inlet
1
(241)
2
/
34
(864)
9
11
10
/16
(271)
13
Airflow
11
/
16
34
(864)
(348)
15
(395)
9
/16
2
Damper Size = 18 x 18 (457 x 457)
Roof Opening = 201/2 x 201/2(521 x 521)
Curb Cap Thickness = 0.052 (1)
^Approximate Unit Weight = 244 lb. (111 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
(51)
27
(695)
3
/8
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cfm
Model
Number
Fan
CFM
1250
1500
0.1250.250.3750.50.6250.7511.1251.251.5
RPM390483
BHP0.080.11
Sones12.812.6
RPM422513590
BHP0.110.150.20
Static Pressure in inches wg
MAXIMUM RPM = 1200
TIP SPEED = RPM x 3.30
MAXIMUM MOTOR FRAME SIZE = 145T
AVERAGE OUTLET VELOCITY = CFM/1.48
Sones12.212.511.8
RPM459549616682
1750
BHP0.160.210.260.31
Sones12.712.712.114.0
RPM503580652708766824
2000
BHP0.220.280.340.390.450.51
Sones13.613.614.215.717.618.3
RPM549615685745794844
2250
BHP0.300.360.430.490.550.61
Sones14.614.916.617.819.118.9
RPM5986537177798308749671013
SAF-112
2500
BHP0.400.460.530.610.680.740.890.97
Sones15.817.018.819.719.819.62021
RPM64769875381086591199010341077
2750
BHP0.520.580.660.740.820.901.041.121.21
Sones17.719.921212121222325
RPM6977437908438979471026106210981179
3000
BHP0.660.730.800.890.991.081.231.311.391.58
Sones20212322222224252631
RPM74879083388092897810631098
3250
BHP0.830.900.981.071.161.271.451.54
Sones2223242424242627
RPM7988398789189641009
3500
BHP1.021.101.181.261.371.48
Sones242525252627
RPM849888924962
3750
BHP1.241.331.411.50
Sones26272728
Performance certified is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B:
free inlet hemispherical sone levels.
8
Page 9
SAF-115
1
32
/16
(814)
29
(743)
1
/4
Inlet
1
(216)
2
/
34
(864)
8
9
(230)
1
/16
16
Airflow
1
/
16
34
(864)
(408)
18
(478)
13
/16
Damper Size = 24 x 24 (610 x 610)
Roof Opening = 261/2 x 261/2(673 x 673)
Curb Cap Thickness = 0.052 (1)
^Approximate Unit Weight = 263 lb. (119 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
2 (51)
27
(695)
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D
cfm
Model
Number
Fan
CFM
1300
1650
0.1250.250.50.7511.251.51.7522.25
RPM316407546654
BHP0.070.120.230.34
Sones7.68.99.712.0
RPM351430565672763844
BHP0.120.170.290.430.580.73
Static Pressure in inches wg
MAXIMUM RPM = 1200
TIP SPEED = RPM x 4.06
MAXIMUM MOTOR FRAME SIZE = 145T
AVERAGE OUTLET VELOCITY = CFM/2.09
Sones6.39.210.313.315.516.7
RPM3874635866917818619341000
2000
BHP0.180.240.380.530.700.871.051.23
Sones6.89.011.114.115.817.118.319.6
RPM432498610712800879952101810801139
2350
BHP0.260.340.480.650.831.031.231.441.641.85
Sones8.59.712.214.916.317.518.8202123
RPM479534642734821898970103710981157
2700
BHP0.380.450.630.801.001.201.431.661.892.12
Sones10.311.213.915.716.918.019.3212223
RPM5285746767638439209891055
SAF-115
3050
BHP0.520.600.800.991.191.421.641.89
Sones12.913.915.617.418.118.619.921
RPM5776217127958709421011
3400
BHP0.700.791.001.211.431.661.91
Sones16.016.517.919.119.92121
RPM627669748830902968
3750
BHP0.911.021.231.481.711.95
Sones19.018.620212223
RPM677717785866935
4100
BHP1.171.291.501.782.04
Sones2221222324
RPM729765830902
4450
BHP1.471.601.842.12
Sones23232425
RPM780815
4800
BHP1.821.96
Sones2626
Performance certified is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B:
free inlet hemispherical sone levels.
9
Page 10
SAF-118
32
(813)
1
36
/16
(916)
Inlet
3
(248)
4
/
9
5
11
/16
(287)
40
(1016)
19
Airflow
Damper Size = 30 x 30 (762 x 762)
Roof Opening = 321/2 x 321/2(826 x 826)
Curb Cap Thickness = 0.064 (2)
^Approximate Unit Weight = 494 lb. (224 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
1
(486)
8
/
40
(1016)
22
(567)
5
/16
2
(51)
31
(789)
1
/16
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D
cfm
Model
Number
Fan
CFM
2500
3100
0.1250.250.50.7511.522.52.753
RPM294359466564
BHP0.160.230.370.57
Sones6.99.49.811.5
RPM334390488572654
BHP0.260.340.510.700.93
Static Pressure in inches wg
MAXIMUM RPM = 1185
TIP SPEED = RPM x 4.85
MAXIMUM MOTOR FRAME SIZE = 215T
AVERAGE OUTLET VELOCITY = CFM/2.96
Sones8.38.610.812.215.8
RPM376426516594664800
3700
BHP0.410.500.700.911.121.67
Sones10.310.111.913.317.024
RPM419466547621688807924
4300
BHP0.600.710.931.161.411.932.59
Sones12.512.013.114.619.12324
RPM466508582651713828932103410811127
4900
BHP0.850.981.231.481.752.322.933.694.074.46
Sones14.814.515.617.5212324242525
RPM514550620684743851949104210891134
SAF-118
5500
BHP1.171.311.591.872.162.773.424.124.544.96
Sones17.217.219.122232324252526
RPM56359466171977587897310591100
6100
BHP1.571.702.032.342.643.314.014.735.08
Sones202022242625252626
RPM613640702757810908998
6700
BHP2.052.192.542.883.233.934.65
Sones24242427282829
RPM662688744797846939
7300
BHP2.612.783.153.533.894.63
Sones272727313030
RPM711737787839885
7900
BHP3.273.463.844.264.66
Sones3030313233
RPM760786831880
8500
BHP4.044.264.645.10
Sones33343536
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are for
installation type B: free inlet hemispherical sone levels.
10
Page 11
SAF-120
1
48
/16
(1221)
35
(910)
13
/16
Inlet
1
(281)
16
/
46
(1168)
11
7
5
/8
(149)
Airflow
25
3
(645)
8
/
46
(1168)
23
(586)
1
/16
2
Damper Size = 36 x 36 (914 x 914)
Roof Opening = 381/2 x 381/2(978 x 978)
Curb Cap Thickness = 0.064 (2)
^Approximate Unit Weight = 716 lb. (325 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
1
/8 (54)
44
(1119)
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D
cfm
Model
Number
Fan
CFM
0.1250.250.511.251.522.533.5
Static Pressure in inches wg
RPM275325414553612
4000
BHP0.320.410.641.151.41
Sones15.013.215.016.819.2
RPM317363440570627679773
5000
BHP0.550.670.931.511.832.162.82
Sones17.615.517.018.9212329
RPM363403472594647695788871
6000
BHP0.881.041.332.002.352.693.484.28
Sones17.819.617.82122253039
RPM4124465106206727198048859601029
7000
BHP1.351.521.862.592.983.404.205.126.056.97
Sones19.8222023252731395380
RPM4624915506496987448289039751044
8000
BHP1.952.142.553.313.764.215.156.067.088.14
Sones23232425283033405173
RPM5135385916877287728539289951060
SAF-120
9000
BHP2.722.933.384.274.685.196.207.278.39.38
Sones26262729313237414966
RPM5645886357267668038809521020
10000
BHP3.683.924.405.395.886.357.458.589.77
Sones302930343536414751
RPM616638680765804840908979
11000
BHP4.845.115.636.747.267.88.8510.12
Sones3333353839414753
RPM668689725806844879
12000
BHP6.226.527.068.298.899.46
Sones383940434547
13000
14000
RPM720740774848
BHP7.858.188.7810.07
Sones44454649
RPM772791
BHP9.7510.11
AVERAGE OUTLET VELOCITY = CFM/4.06
MAXIMUM RPM = 1100
TIP SPEED = RPM x 5.37
MAXIMUM MOTOR FRAME SIZE = 215T
Sones4951
Performance certified is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B:
free inlet hemispherical sone levels.
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Typical Specifications
Roof mounted, nontempered, filtered, makeup air units shall be of the
belt-driven, double-width/
double-inlet, forwardcurved, centrifugal blower
type.
Housing shall be of square
design and constructed of
heavy-gauge galvanized
steel. The cover shall
be adequately sized to
prevent rain and snow from
entering the building and
constructed of heavy-gauge
galvanized steel.
Curb caps shall have
prepunched mounting
holes.
Permanent washable
one-inch filters shall be
provided.
Fan wheels shall be of
the forward-curved type,
constructed of heavygauge galvanized steel, and
statically and dynamically
balanced to ensure smooth,
vibration free operation.
Motors shall be
permanently lubricated,
heavy-duty, ball bearing
type carefully matched to
the fan load and furnished
at the specified voltage,
phase and enclosure.
The fan shaft shall be
ground and polished steel
mounted in heavy-duty,
sealed ball bearings.
Bearings shall be selected
for a minimum L50 life in
excess of 200,000 hours
at maximum cataloged
operating speeds.
Pulleys shall be of the
fully machined cast iron
type, keyed and securely
attached to the wheel
and motor shafts. Motor
sheaves shall be adjustable
for final system balancing.
Drives shall be sized for a
minimum of 150% of driven
horsepower. The entire fan
and motor assembly shall
be mounted on vibration
isolators to prevent noise
transmission into the
building.
Fans shall bear the
AMCA Certified Ratings
Seal for Sound and Air
Performance.
Fans shall be model SAF
as manufactured
by Greenheck Fan
Corporation of Schofield,
Wisconsin, USA.
Building Value in Air
Greenheck delivers value
to mechanical engineers by
helping them solve virtually
any air quality challenges
their clients face with a
comprehensive selection of
top quality, innovative airrelated equipment. We offer
extra value to contractors
by providing easy-to-install,
competitively priced, reliable
products that arrive on time.
And building owners and
occupants value the energy
efficiency, low maintenance
and quiet dependable operation
they experience long after the
construction project ends.
Our Warranty
Greenheck warrants this equipment to be free from defects in material and workmanship for a period
of one year from the shipment date. Any units or parts which prove defective during the warranty
period will be replaced at our option when returned to our factory, transportation prepaid. Motors are
warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck
prove defective during this period, they should be returned to the nearest authorized motor service
station. Greenheck will not be responsible for any removal or installation costs.
As a result of our commitment to continuous improvement, Greenheck reserves the right to change