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Loren Cook
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35AVA08D10
User Manual
30 pgs873.24 Kb0

Loren Cook 35AVA08D10 User Manual

Adjustable Pitch Vane Axial Fan
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Duty Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Discharge Cones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Lorenized Fan Finish Specification . . . . . . . . . . . . . . . . . . . . . . . . . 4
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 8
Performance Data
35 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
39 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
44 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
49 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
57 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
63 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
71 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
79 AVAD Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
35 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
39 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
44 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
49 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
57 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
63 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
71 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
79 AVAB Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Sound Data
35 AVAD - 49 AVAD Sound Data. . . . . . . . . . . . . . . . . . . . . . . . . . 25
57 AVAD - 79 AVADSound Data . . . . . . . . . . . . . . . . . . . . . . . . . . 26
35 AVAB - 49 AVAB Sound Data . . . . . . . . . . . . . . . . . . . . . . . . . . 27
57 AVAB - 79 AVAB Sound Data . . . . . . . . . . . . . . . . . . . . . . . . . . 28
AVAD/AVAB
Cook adjustable pitch vane axial f ans are available in direct and belt drive models offering high efficiencies and high static pressures in a space-efficient inline package. The AVA is available in sizes 35 inch through 79 inch with flow rates of 400 CFM to 213,403 CFM and static pressures up to 13 inches. The AVA features cast aluminum airfoil blades that can be pitch adjusted to achieve a broad range of performance. The AVA adjustable pitch vane axial f an is available with a full range of accessories allowing it to be adapted to man y differ­ent applications.
AVAD
Adjustable Pitch Vane Axial Fan
High efficiency nine blade cast aluminum propeller assembly with airf oil blade design. Minimum 3/16” steel housing with continuously welded seams, and integral inlet and outlet flanges pre-punched for mounting. Copper lubrication lines are standard on belt drive units and also stan­dard on direct drive units when applicable. The motor plate is attached to a heavy welded sub-base and features threaded studs for positive belt tensioning. Direct drive units feature a totally enclosed motor installed in a motor tunnel surrounded by welded straightening vanes.
Belt drive units feature an inner drum that encloses the driven sheave,
shaft and bearings. The low-drag dual tunnels, separating belts from the airstream, also protect the extended lubrication lines. Removable covers provide access to the shaft, bearings and belts. All steel fan components feature a Lorenized
Bearings are designed and tested specifically for use in air handling
applications. Bearings are heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 500,000 hours for horizontal units and L50 life in excess of 250,000 hours for vertical units at maximum cataloged operating speed, horsepower and static pressure. Drives utilize oil and heat resistant, non-static belts and precision machined cast iron sheaves which are keyed and securely attached to the wheel and motor shafts. Drives are sized for 150 percent of motor horsepower. Power (BHP) ratings for all belt drive fans includes drive loss to ensure accurates selection of the motor. Accurate performance is assured through compliance with the AMCA Certified Ratings Program. The AVAD and AVAB are licensed to bear the AMCA Seal for Air and Sound Performance.
TM
powder coat finish.
AVAB
2
B
D
B
19
Construction Features
AVAB Outlet Side
Dual belt tunnels
Mounting Options
Vertical
Floor, Ceiling, Wall or Platform
Adjustable motor plate
Extended lubrication line
Adjustable pitch,
9 blade, airfoil prop
Pre-punched mount flanges
Inner enclosure for bearings, sheave and shaft
Hub cover
Ceiling Horizontal

Information

AVAB Inlet Side
Roof Exhauster
AVAD/AVAB
CFM Limitation for Damper Operation
Fan
Size
35 8800 21700 39 10900 26700 44 13600 33600 49 17000 41900 57 22800 56200 63 27800 68400 71 35200 86700 79 43600 107200
CFM
Min. Max.
Vertical mounting brack­ets provide for vertical installation, floor or ceiling mount, with upblast or downblast configuration. Vibration isolators can be used with the mounting configurations. Ceiling brackets with downblast configuration shown.
Lorenized
All steel fan components shall be finished with an electrostatically applied, baked polyester pow­der coating. Each component shall be subject to a five stage environmentally friendly wash sys­tem, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.
Standard Color - Gray Final Coat Thickness - Minimum 2 mils
Polyester Powder Testing Information
Property Test Method Value
Impact Resistance ASTM D2794 100 inch-pounds Pencil Hardness ASTM D3363 2H (Mar or Gouge) Crosshatch Adhesion ASTM D3359 Method B 100 percent Humidity Resistance ASTM D2247 1000+ Hours Salt Spray ASTM B117 1000+ Hours Continuous Service Temperature N/A 230
TM
Fan Finish Specification
Mounting feet, bolted to the inlet and outlet flanges, can be field rotated for different motor positions. The mounting feet provide a solid base for mounting to the floor, ceiling or wall. They can be used with vibration iso­lators.
Side-angle supports pro­vide for suspension of the unit. The supports can be used with vibration isola­tors.
o
3
F (110
o
C)
AVAD and AVAB, when used with butterfly damper, panel and curb, can be mounted as a roof exhauster. Allow 1/8” static pressure resistance for damper. (See table,
CFM Limitation for Damper Operation , for
additional information.)
Product Nomenclature
Sample - 57AVAB-19 57 - Prop Diameter in inches.
Sizes range from 35 to 79.
AVA - Adjustable Pitch Vane Axial
- Drive Type
- Direct Drive
- Belt Drive
- Prop angle in degrees
AVAD/AVAB
Information
Duty Levels
Fan
Size
35 1 1-3/16 1 1-2 1-2 1-3 1-3 1-3 1-3 1-3 1-3 1-5 1-5 1-5 35 2 1-11/16 1 3 3-5 5 5 5-7.5 5-10 5-10 5-10 7.5-10 7.5-10 7.5-10 35 3 2-7/16 1 5-10 7.5-10 7.5-10 7.5-10 10 15 15-20 15-20 15-20 15-20 15-25 35 4 1-15/16 2 15-30 15-40 15-50 15-50 15-60 20-60 25-60 25-75 25-75 25-75 30-75 39 1 1-3/16 1 1-2 1-2 1-2 1-3 1-3 1-3 1-3 1-3 1-5 1-5 1-5 39 2 1-11/16 1 3 3-5 3-5 5 5 5-7.5 5-10 5-10 7.5-10 7.5-10 7.5-10 39 3 2-7/16 1 5-7.5 7.5-10 7.5-10 7.5-10 7.5-10 10 15-20 15-20 15-20 15-20 15-20 39 4 1-15/16 2 10-25 15-40 15-50 15-60 15-60 15-60 25-60 25-75 25-75 25-75 25-75 44 1 1-11/16 1 2-3 2-3 2-5 2-5 2-5 2-7.5 2-7.5 2-7.5 2-7.5 2-10 2-10 44 2 2 -7/16 1 5-7.5 5-7.5 7.5-10 7.5-10 7.5-10 10-15 10-15 10-15 10-20 15-20 15-20 44 3 2-3/16 2 10-50 10-50 15-60 15-60 15-60 20-75 20-75 20-75 25-75 25-75 25-75 44 4 2-11/16 2 - 60-75 75-100 75-100 75-100 100 100 100 100 100 100 49 1 1-11/16 13333-53-53-53-7.5 3-7.5 3-7.5 3-7.5 3-7.5 49 2 2 -7/16 1 5-7.5 5-7.5 5-7.5 7.5-10 7.5-10 7.5-10 10-15 10-15 10-15 10-20 10-20 49 3 2-3/16 2 10-40 10-60 10-60 15-60 15-60 15-60 20-60 20-60 20-60 25-60 25-60 49 4 2-15/16 2 - - 75 75-100 75-100 75-100 75-100 75-100 75-100 75-100 75-100 57 1 1-11/16 1 - - 33333-53-53-53-53-5 57 2 2-7/16 1 3-5 3-5 5-7.5 5-7.5 5-10 5-10 7.5-10 7.5-10 7.5-10 7.5-15 7.5-15 57 3 2-3/16 2 7.5-40 7.5-40 10-50 10-50 15-50 15-50 15-50 15-50 15-50 20-50 20-50 57 4 2-11/16 2 50-75 50-75 60-75 60-100 60-100 60-125 60-125 60-125 60-125 60-125 60-125 57 5 2-15/16 2 -----150150150-200 150-200 150-200 150-200 63 1 2 -7/16 1 3-5 3-5 3-7.5 3-7.5 3-10 3-10 3-10 3-15 3-15 3-15 3-15 63 2 2 -3/16 2 7.5-30 7.5-40 10-40 10-50 15-50 15-50 15-50 20-50 20-50 20-50 20-50 63 3 2-11/16 2 40-60 50-75 50-75 60-100 60-100 60-125 60-125 60-125 60-125 60-125 60-125 63 4 3 -3/16 2 - 100 100-125 125 125-150 -----­63 5 2-15/16 2 -----150150150-200 150-200 150-200 150-200 71 1 2 -7/16 2 7.5-40 7.5-40 7.5-50 7.5-60 7.5-60 7.5-75 7.5-75 7.5-75 7.5-75 7.5-75 7.5-75 71 2 2-15/16 2 50-60 50-75 60-75 75 75-100 100-200 100-200 100-200 100-200 100-200 100-200 71 3 3 -3/16 2 75 100 100 100-125 125 -----­71 4 3-11/16 2 100-150 125-150 125-200 150-200 150-200 -----­79 1 2 -7/16 2 10-30 10-40 10-40 10-50 10-60 10-60 10-100 10-100 10-100 10-100 10-100 79 2 2-15/16 2 40-60 50-60 50-75 60-75 75-100 75-100 125-150 125-200 125-200 125-200 125-200 79 3 3 -3/16 2 75 75 100 100-125 125 125-150 200 ---­79 4 3-11/16 2 100 100-150 125-200 150-200 150-200 200 -----
Bearing Type 1 - Heavy duty pillow block ball bearing. Bearing Type 2 - Heavy duty pillow block spherical roller bearing.
Duty
Bore
Size
Bearing
Type
o
10
o
13
o
16
19
HP Ranges Per Blade Angle
o
o
22
o
25
o
28
o
31
o
34
o
37
40
o
Inlet/Outlet Cones
Cones are used on the fixed pitch vane axial fan to adapt it to larger or smaller size ducts on both the inlet and outlet sides. For example, a Diverging Outlet Cone, as illustrated in Figure A, connects the fan to a larger duct resulting in static regain. The Static Regain table provides examples of the regain f or a cone with an angle of 25 degrees to 30 deg rees and varying fan outlet velocities. For other diverging outlet cones, an approximate determination of static regain can be obtained if the following formula is used.
SP
= SP
2
+ .45(VP
1
A Converging Inlet Cone, as illustrated in Figure B, is used to connect a large duct to the fan inlet. Due to the tapered shape of the cone , friction loss is negligib le. To determine this slight difference in static pressure, the following formula can be used.
SP
= SP
2
- .08(VP
1
A Converging Outlet Cone, as illustrated in Figure C, is used to connect a small duct to the outlet flange of the fan. The across-the-cone change in velocity pressure is added to the fan’ s static pressure. To determine the change in static pressure, the f ollowing formula can be used.
SP
= SP
- (VP
1
2
Static Regain
Velocity
(FPM)SP(in inches)
1000 .012 2750 .099 4500 .261 1250 .020 3000 .117 4750 .290 1500 .029 3250 .138 5000 .323 1750 .040 3500 .160 5250 .356 2000 .052 3750 .183 5500 .392 2250 .065 4000 .207 5750 .428 2500 .081 4250 .233 6000 .467
- VP
)
1
2
- VP
)
1
2
- VP
)
1
2
Velocity
(FPM)SP(in inches)
Velocity
(FPM)SP(in inches)
Velocity Pressure - VP=(velocity/4005)
Velocity
(FPM)VP(in inches)
500 .0156 1600 .160 3750 .880 600 .0225 1700 .181 4000 1.000 700 .0305 1800 .203 4250 1.130 800 .0400 1900 .226 4500 1.265
900 .0504 2000 .250 4750 1.410 1000 .0625 2250 .316 5000 1.560 1100 .0758 2500 .391 5250 1.720 1200 .0900 2750 .473 5500 1.890 1300 .106 3000 .562 5750 2.060 1400 .122 3250 .661 6000 2.250 1500 .141 3500 .768
4
Small Duct
Figure A
VP
1
Converging
Large
Inlet
Duct
Cone
Figure B
Large
Duct
Fan
Figure C
Velocity
(FPM)VP(in inches)
VP
Fan
Air Flow
VP
2
Fan
Air Flow
VP
1
Converging Outlet Cone
Air Flow
2
VP
1
Diverging Outlet Cone
2
Large Duct
Small Duct
VP
2
Small
Duct
Velocity
(FPM)VP(in inches)
Specifications and Dimension Data
AVAD
Description - Fan shall be a direct drive, adjustable pitch, vane axial fan. Certifications - Fan shall be manufactured at an ISO 9001 certified facility. Fan shall
be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL
705). Fan shall bear the AMCA certified ratings seal for air and sound perf ormance.
Construction - Fan shall be of bolted and welded construction utilizing corrosion resis-
tant fasteners. Housing shall be minimum 7 gauge steel with continuously welded seam. Housing shall incorporate minimum 2” x 2” x 1/4” welded inlet and outlet flanges pre-punched for mounting. Housing shall include welded steel discharge vanes surrounding a “C” face mount motor tunnel. Copper lube lines shall be extended from motor bearings to the outside of the housing when applicable. Unit shall bear an engraved aluminum nameplate.
Coating - All steel fan components shall be Lorenized
TM
with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.
Propeller - Propeller shall be an adjustable pitch, cast aluminum, 9 blade airf oil design,
factory set to required pitch. Individual blades shall be cast with a threaded fas­tener and feature a conical section to secure the blade to the cast aluminum hub and to provide provision for pitch adjustment. The propeller hub shall be keyed and locked to the shaft utilizing a split taper bushing and retaining plate. Propeller shall be balanced in accordance with AMCA Standard 204-96, Balance Quality and
Vibration Levels for Fans , Category BV-3.
Motor - Motor shall be heavy duty type furnished at the specified voltage and phase. Product - Fan shall be model AVAD as manufactured by Loren Cook Company of
Springfield, Missouri.
Adjustable Pitch Vane Axial Fan Direct Drive
Loren Cook Company certifies that the AV AD 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 comply with the requirements of the AMCA Certified Ratings Program.
Type AVAD is furnished standard with UL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.
T ype AVAD is furnished standard with listing (Power Ventilator) when furnished with factory supplied motor.
B
O.D.
A
I.D.
E
Turning vane
Air Flow
D
Extended electric leads with
conduit box on exterior of drum
C bolt circle
F diameter
G number
of holes
Rotation
AVAD Dimension Data
AVAD
Size
35 35-1/2 39-7/8 38 7 ga. 30 9/16 12 256TC 380 39 39-3/8 43-7/8 41-7/8 7 ga. 30 9/16 12 256TC 435 44 44-1/8 49-5/8 47-3/8 7 ga. 34 9/16 12 326TC 620 49 49-1/4 54-3/4 52-1/2 7 ga. 34 9/16 12 326TC 680 57 57-1/8 62-5/8 60-3/8 1/4 42 9/16 12 405TC 1175 63 63 68-1/2 66-1/4 1/4 42 11/16 16 405TC 1285 71 70-7/8 77-5/8 75 1/4 54 79 78-3/4 85-1/2 82-7/8 1/4 54
All dimensions in inches. *Less motor.
ABCDEFG
11/16 11/16
16 449TC 2020 16 449TC 2215
TEFC Max.
Frame Size
Approx. Ship
Wt. Lbs.*
UL
C
5
AVAB
Loren Cook Company certifies that the AVAB 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 comply with the requirements of the AMCA Certified Ratings Program.
Type AVAB is furnished standard with UL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.
Specifications and Dimension Data
Adjustable Pitch
Vane Axial Fan
Belt Drive
T ype AVAB is furnished standard with
UL listing (Power Ventilator) when
C
furnished with factory supplied motor.
Description - Fan shall be a belt drive, adjustable pitch, vane axial fan. Certifications - Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be
listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). Fan shall bear the AMCA certified ratings seal for air and sound performance.
Construction - Fan shall be of bolted and welded construction utilizing corrosion resistant
fasteners. Housing shall be minimum 3/16” steel with continuously welded seam. Hous­ing shall incorporate minimum 2” x 2” x 1/4” continuously welded inlet and outlet flanges pre-punched for mounting. Housing shall include welded steel discharge vanes and aerodynamically designed dual belt tunnels. Copper lube lines shall be extended from the bearings to the outside of the housing. Adjustable motor plate shall be attached to a welded motor sub-base and shall utilize threaded studs for positive belt tensioning. Unit shall bear an engraved aluminum nameplate.
Coating - All steel fan components shall be Lorenized
baked polyester powder coating. Each component shall be subject to a five stage envi­ronmentally friendly wash system, followed by a minimum 2 mil thick baked powder fin- ish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.
Propeller - Propeller shall be an adjustable pitch, cast aluminum, 9 blade airfoil design, fac-
tory set to required pitch. Individual blades shall be cast with a threaded fastener and feature a conical section to secure the blade to the cast aluminum hub and to provide provision for pitch adjustment. The propeller shall be keyed and locked to the shaft utiliz­ing a split taper bushing and retaining plate. Propeller shall be balanced in accordance with AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans , Category BV-3.
Motor - Motor shall be heavy duty type furnished at the specified voltage, phase and enclo-
sure.
Bearings - Bearings shall be designed and tested specifically for use in air handling applica-
tions. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 500,000 hours for horizontal units, and L50 life in excess of 250,000 hours for vertical units at maximum cataloged operating speed.
Blower Shaft - Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground
and polished. Shafting shall be sized for a critical speed of at least 125 percent of maxi­mum RPM.
Belts and Drives - Belts shall be oil and heat resistant, non-static type. Drives shall be preci-
sion machined cast iron, fixed pitch type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150 percent of the installed motor horsepower.
Product -Fan shall be model AVAB as manufactured b y Loren Cook Company of Springfield,
Missouri.
E
Belt guard (optional)
TM
with an electrostatically applied,
Motor cover (optional)
Rotation
C bolt
circle
F diameter
G number of
holes
B
O.D.
A
Air Flow
I.D.
D
AVAB Dimension Data
AVAB
Size
35 35-1/2 39-7/8 38 3/16 43 9/16 12 35-1/8 365T 820 39 39-3/8 43-15/16 41-7/8 1/4 43 9/16 12 37-1/8 365T 940 44 44-1/8 49-5/8 47-3/8 1/4 47 9/16 12 42-5/8 405T 1440 49 49-1/4 54-3/4 52-1/2 1/4 47 9/16 12 43-91/6 405T 1520 57 57-1/8 62-5/8 58-7/8 1/4 61 9/16 12 44-5/8 445T 2150 63 63 68-1/2 66-1/4 1/4 61 11/16 16 46-3/4 445T 2400 71 70-7/8 77-5/8 75 3/8 72 11/16 16 64-1/4 445T 3850 79 78-3/4 85-9/16 82-7/8 3/8 72 11/16 16 67-1/4 445T 4200
All dimensions in inches. *Less motor.
AB CDEFGH
6
ODP Max. Motor
Frame
H
ref.
Approx. Ship
Wt. Lbs.*
Disconnect Switches
NEMA 1 - Indoor general purpose. NEMA 1 (Lockable) - Indoor general purpose with
locking capability.
NEMA 3R - Exterior mount, rain-tight. NEMA 4 - Watertight and dust-tight. NEMA 7 and NEMA 9 - Lockable, indoor, explosion
proof.
Belt Guard
A belt guard is designed to cover the top, front and sides of the drive assembly. Belt guards are con­structed of minimum 18 gauge Lorenized and have an open back to allow for inspection or belt tightening. Belt guards are factory installed.
Inlet/Outlet Guard
Inlet/outlet guards are used in non-ducted installations to protect personnel and prevent debris from enter­ing the fan.
TM
steel
Motor Cover
Inlet/Outlet Flex Duct Connector
NEMA 1
NEMA 1
(lockable)

Accessories

NEMA 4
AVAD/AVAB
NEMA 3R
NEMA 7 NEMA 9
Inlet/Outlet Companion
The motor cover encloses the motor and drive assembly and serves as an OSHA belt guard. The motor cover is con­structed of 18 gauge Lorenized Motor covers are fac­tory installed.
Flex duct connectors are available for the inlet or outlet of the AVAD/AVAB. These connectors provide a flexible connection between the fan and the attached ductwork. This reduces the transmission of noise and vibration to the ductwork as well as allowing for slight misalignment and easy remov al of the f an without disturbing the rigid ductwork. Flex duct connectors are constructed of reinforced neoprene fabric and aluminum bands.
TM
steel.
Flange
Inlet/outlet companion Flanges are available f or use in conjunction with the stan­dard flanged inlet/outlet. The inlet/outlet companion flange is attached to the adjacent ductwork to provide an exact mate to the flanged connec­tion on the fan.
Mounting Feet
Mounting feet, bolted to the inlet and outlet flanges, provide a solid base for mounting to the floor, ceiling or wall. The mounting feet can be used with vibration isolators.
Mounting Brackets
Mounting brackets are securely welded in place in either the vertical or horizontal discharge configurations and are based upon the spe­cific location requirements. The bracket design allows for use with vibration isolators in all configurations, when required.
Inlet Bell
An inlet bell provides for more uniform airflow to the fan blades and is normally used when no inlet ductwork is present. When a non­ducted vane axial fan is installed without an inlet bell, system effect will occur due to the uneven loading of the fan blades.
Inlet Cone/Outlet Cone
Normally used to adapt ductwork to a specific size vane axial fan. Depending on the location of the installation, the velocity pressure change can equate to static pressure regain or static pressure loss.
Sound Muffler
A sound muffler can be mounted on both the inlet or outlet of the unit and is used for sound critical applications. The sound m uffler is not for use with wet atmospheres, velocities greater than 5000 FPM, and temperatures above 250
o
F.
Bufferfly Dampers
Butterfly dampers provide for a weatherproof closure for outdoor vertical discharge applications. The dampers must be used in conjunc­tion with optional curb panel for roof curb mounting.
Curb Panel
A curb panel, when used in conjunction with optional butterfly dampers, conv erts the unit to a vane axial roof upblast unit. The curb panel is used for mounting on a roof curb.
Inspection Door
An inspection door allows for ease of access to the propeller when the unit is installed in a system.
Thrust Restraints Kit
Thrust restraints minimize fan movement when the unit thrust ratio exceeds weight ratio. Thrust restraints require isolators. The kit includes two mounting brackets, welded to the fan housing, and two brackets shipped loose for duct work mounting.
7
AVAD/AVAB Accessories
Spring Isolator - Ceiling Mounted
D Dia. rod
C
B
A
Unit
SC-35 35 23 3-11/16 2-1/4 5-1/4 1/2 2
SC-70 70 51 3-11/16 2-1/4 5-1/4 1/2 2 SC-125 125 100 3-11/16 2-1/4 5-1/4 1/2 2 SC-245 245 206 3-11/16 2-1/4 5-1/4 1/2 2 SC-370 370 370 3-11/16 2-1/4 5-1/4 1/2 2 SC-500 500 500 3-11/16 2-1/4 5-1/4 5/8 2
SC-1000 1000 870 5-9/16 3-5/8 8-9/16 3/4 5
All dimensions in inches.
Free Standing Spring Isolator - Floor Mounted
F bolt
E
B
A
dia.
C hole dia.
D
All dimensions in inches. Isolators listed are designed to provide a minimum of 50 percent of overload capacity. A single hole is provided at the center of the plate.
Restrained Spring Isolator - Floor Mounted
F
E
B
A
bolt dia.
C hole dia.
RS-1250 1250 1096 8 6-1/2 11/16 4 7-1/2 5/8 7
All dimensions in inches. Isolators listed are designed to provide a minimum of 50 percent of overload.
D
Rated Load
(lbs.)
Unit
SF-70 70 51 2-5/8 ** 11/16 2-5/8 3-1/2 3/8 2 SF-120 120 98 4-1/2 3-1/2 9/16 2-1/2 3-1/2 3/8 2 SF-220 220 196 4-1/2 3-1/2 9/16 2-1/2 3-1/2 3/8 2 SF-370 370 366 4-1/2 3-1/2 9/16 2-1/2 3-1/2 3/8 2 SF-625 625 419 7 5-1/2 11/16 4 4-1/2 3/8 4
SF-1250 1250 1096 7 5-1/2 11/16 4 4-3/4 3/8 5
Unit
RS-70 70 51 4-3/4 3-3/4 7/16 3 5 1/2 3 RS-120 120 98 4-3/4 3-3/4 7/16 3 5 1/2 3 RS-220 220 196 4-3/4 3-3/4 7/16 3 5 1/2 3 RS-370 370 366 4-3/4 3-3/4 7/16 3 5 1/2 3 RS-625 625 419 8 6-1/2 11/16 4 7-1/2 5/8 6
Rated Load
Rated Load
(lbs.)
(lbs.)
Spring. Rate
(lbs./in.)
Spring. Rate
(lbs./in.)
Spring. Rate
(lbs./in.)
ABCD
ABCDEF
ABCDEF
Approx. Ship
Approx. Ship
Approx. Ship
Wt. Lbs.
Wt. Lbs.
Wt. Lbs.
Rubber-in-Shear Isolator - Ceiling Mounted
D Dia. rod
C
B
F Dia.
A
Unit
RC-75 75 2-5/32 1-1/2 2-23/32 11/16 15/32 3/8 1
RC-125 125 2-5/32 1-1/2 2-23/32 11/16 15/32 3/8 1
E
RC-175 175 3-5/32 2-1/4 5-11/16 3/4 1-31/64 3/4 2 RC-300 300 3-5/32 2-1/4 5-11/16 3/4 1-31/64 3/4 2 RC-450 450 3-5/32 2-1/4 5-11/16 3/4 1-31/64 3/4 2 RC-700 700 4 4-3/4 8 3/4 1-1/2 3/4 3
RC-1100 1100 4 4-3/4 8 3/4 1-1/2 3/4 5
All dimensions in inches.
Rated Load
Rubber-in-Shear Isolator - Floor Mounted
D
C Oper. Height
E Free Height
G
A
F
B
Unit
RF-55 55 1-13/16 3-3/16 1-7/64 5/16 NC 1-1/2 2-3/8 11/32 1 RF-120 120 2-3/8 3-7/8 1-1/4 3/8 NC 1-3/4 3 11/32 1 RF-220 220 2-3/8 3-7/8 1-1/4 3/8 NC 1-3/4 3 11/32 1 RF-375 375 2-3/8 3-7/8 1-1/4 3/8 NC 1-3/4 3 11/32 1 RF-600 600 3-1/4 5-1/2 2 1/2 NC 2-1/2 4-1/8 9/16 2
RF-1100 1100 3-1/4 5-1/2 2 1/2 NC 2-1/2 4-1/8 9/16 2
All dimensions in inches.
Housed Spring Isolator - Floor Mounted
slot
D
F bolt
dia.
C
E
B
A
Unit
HF-120 120 98 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-220 220 196 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-320 320 302 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-370 370 366 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-500 500 500 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-700 700 700 6-1/8 5-5/8 5/16 2-1/8 3-1/2 3/8 2 HF-800 800 588 9 7-1/2 7/16 3-1/2 5 5/8 13
HF-1000 1000 826 9 7-1/2 7/16 3-1/2 5 5/8 13
All dimensions in inches. Isolators listed are designed to provide a minimum of 50 percent of overload capacity.
(lbs.)
Rated Load
Rated Load
ABCDEF
(lbs.)
(lbs.)
ABCDEFG
Spring. Rate
(lbs./in.)
ABCDEF
8
Approx. Ship
Wt. Lbs.
Approx. Ship
Wt. Lbs.
Approx. Ship
Wt. Lbs.
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