DCLH/BCLH/DCLP/BCLP - Belt Driven and Direct Drive Centrifugal Rooftop Exhausters

DCLH/BCLH/DCLP/BCLP - Belt Driven and Direct Drive Centrifugal Rooftop Exhausters
Turning Air Into Solutions.
CENTRIFUGAL ROOFTOP EXHAUST FANS
DCLH / BCLH / DCLP / BCLP
CATALOG 4135
April 2014
Low Profile Hooded & Louvered
Penthouse Roof Ventilators
Models
DCLH | BCLH | DCLP | BCLP
Twin City Fan & Blower’s line of Low Profile
Centrifugal Roof Exhausters provide quiet and efficient
ventilation in general, clean air applications. These
units are designed to offer world class performance
and quality. The compact design and low contour
minimizes the extension above the roof line and
gives the BCL and DCL series an inconspicuous
appearance. This makes them the ideal choice for
installations viewed from street level to maintain an
attractive architectural appearance.
Models
Model BCLH with
Pivoting Hood
Model DCLH and BCLH
Hooded models DCLH (direct drive) and BCLH (belt
driven) are available for exhaust service in general,
clean air applications. They feature a hinged, removable galvanized steel hood for cleaning and servicing
the fan and a galvanized steel wire birdscreen along
the perimeter of the hood.
Model DCLP and BCLP
Louvered penthouse models DCLP (direct drive) and
BCLP (belt driven) are available for exhaust service in
general, clean air applications. These models feature
a tiered aluminum louvered penthouse enclosure with
a removable aluminum top cover and a galvanized
steel mesh birdscreen positioned vertically behind the
louvers.
Sizes and Performance
Direct Drive
• 8 exhaust sizes from 060 through 120
• Capacities ranging from 100 to 2,000 CFM
• Static pressure capability to 1" w.g.
• Speed control available on all sizes with specific
ODP 115V motors
Cutaway of
Model BCLP
Belt Driven
• 12 exhaust sizes from 100 to 540
• Capacities ranging from 400 to 42,200 CFM
• Static pressure capability to 2.5" w.g.
DCLH, BCLH, DCLP & BCLP models
are cULus 705 listed for electrical, File
No. E158680.
2
Twin City Fan Catalog 4135
ECMotors
Electronically
Commutated Motors
Twin City Fan is now offering its own line of custom
engineered Electronically Commutated (EC) motors.
Electronic commutation is the latest motor technology to be used in direct drive fans. Also known in
the industry as Brush Free or Brushless DC, the EC
motors utilize an electronic circuitboard to control the
functionality of the motor. The motor operates off of
115V AC single phase power, which is converted to
DC power within the motor’s circuitry. The result is a
highly efficient motor with an expanded speed control range and a variety of speed control options to
choose from.
Benefits
• Efficiencies up to 85%
• Constant efficiency as the motor speed is varied
• Up to 66% energy savings over traditional PSC
motors
• Performance
range comparable to a belt driven fan
with reduced maintenance benefits of a direct drive
fan
• 80% usable turndown range as compared with
40% maximum on PSC motors
• Soft start gives fans smooth, quiet start
• Lower operating temperatures result in longer life and reduces energy consumption
• Heavy duty ball bearings are permanently lubricated
• Elimination of VFD results in lower initial cost
DCLH Direct Drive
With EC Motor
Speed Control Options
• Motor
Mounted Dial – A potentiometer is mounted
to the motor housing offering full speed control
range. Speed adjustment is made with a small flat
head screwdriver making system balance simple
and easy.Also eliminates the need to mount or wire
a speed controller.
• 0-10V DC Lead – A 36" long control lead is prewired
to the motor which accepts a 0-10V DC signal and
can be wired into building control systems.
• Remote Mounted Dial – A wall mounted dial allows
the fan to be controlled from within the building by
sending the motor a 0-10V DC signal. This option
includes a 115V to 24V AC transformer mounted in
a NEMA 1 electrical enclosure.
©2012 Twin City Fan Companies, Ltd. All rights reserved
throughout the world. Bulletin illustrations cover the general
appearance of Twin City Fan & Blower products at the time
of publication and we reserve the right to make changes in
design and construction at any time without notice.
Motor Mounted
Speed Control Dial
Remote Mounted
Speed Control Dial
0-10V DC Lead
For Building Control Systems
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3
DesignFlexibility
Penthouse Models DCLP and BCLP
Durable Design
Models DCLP and BCLP utilize an aluminum
louvered penthouse enclosure. The louvers are
made from extruded aluminum and corners are
precision miter cut and welded. The tiered louver
design not only gives these models structural
rigidity, but also makes them aesthetically pleasing.
Durable Design
Hooded models BCLH and DCLH feature the Twin
City Fan modular hood design. Individual galvanized
steel panels interlock to create a hood assembly
that offers superior strength over conventional style
hoods. The smooth curves and clean lines of the
modular hood also give it a more pleasing appearance than traditional hoods.
Drainage channels
allow rain and snow
to run off
Double
weather and
snow baffles
Aerodynamic design
provides efficient
performance
Weather Resistance
The extruded aluminum louvers have double weather
and snow baffles for added weather protection. In
addition, the curb base features a vertical baffle to
guard against storm driven rain and snow.
Accessibility
All fans feature a heavy duty removable, cross broke
aluminum top cover. The easily removable top covers
provide access to motor, drives and wheel.
4
Hooded Models BCLH and DCLH
Interlocking hood
panels add strength
and rigidity
Weather Resistance
The profile of the hoods allows for rain and snow to
run off while the overlapping ribs ensure a weather
tight fit. The curb base features a vertical baffle to
guard against storm driven rain and snow.
Accessibility
Fans incorporate a pivoted hood design. By simply
removing two fasteners, the hood can be easily
opened for access to internal components. The hood
can also be completely removed by unbolting four
fasteners. Accessibility for inspection, cleaning and
maintenance is fast and simple with the modular
hood on models DCLH and BCLH.
Twin City Fan Catalog 4135
ConstructionFeatures
Wheel
Vibration Isolation
Quiet and efficient non-overloading wheels with backwardly curved blades are precisely matched to a deep
spun venturi. All wheels are statically and dynamically
balanced to ensure smooth and quiet operation.
Motor and drive assembly is completely
isolated from the fan supports by rubber
isolators to reduce transmission of noise and
vibration.
Housing
Motors
DCLH/BCLH - Models DCLH and BCLH are equipped
with the Twin City Fan modular hood. Interlocking galvanized steel panels offer superior strength and rigidity
compared with conventional hood designs. The profile
of the hoods also allows rain and snow to run off,
making the units completely weather tight. Hoods either
pivot open or can be removed completely to allow for
convenient access, inspection and maintenance.
ODP, TEFC and explosion proof, single and three
phase motors are carefully matched to the fan load.
DCLP/BCLP - Models DCLP and BCLP feature extruded
aluminum louvers with precision mitered and welded
corners. The tiered louver design not only gives these
models structural rigidity, but also makes them aesthetically pleasing. Removable, cross broke aluminum top
covers make for quick and easy inspection of the
internal components.
Entire fan assembly is balanced and tested at the
factory before shipping.
Drive (BCLH/BCLP only)
Adjustable pitch V-belt drives with cast iron sheaves
and heat resistant belts are selected at 150% of the
driven motor horsepower.
Balancing
Galvanized Bird Screen
Both hooded and louvered units feature galvanized
steel birdscreens to protect the wheel, inlet and
internal components from entry of birds.
Disconnect Switch
Curb Cap
One-piece curb cap/inlet venturi assembly provides
complete protection from weather. Prepunched mounting
holes provide easy and accurate attachment to the roof
curb.
Shaft (BCLH/BCLP only)
Precision ground and polished with a first critical speed
of at least 125% of the fan’s maximum operating
speed.
Bearings (BCLH/BCLP only)
Standard on all units. Fans are provided with a
NEMA-1 type disconnect switch mounted in the
motor compartment when ODP or TEFC motors are
used. When explosion proof motors are specified, a
NEMA-7/9 disconnect switch will be shipped loose
for field mounting and wiring.
Nameplate
Permanently attached nameplate displays serial
number and unit information for future identification.
Heavy-duty re-greasable pillow block ball bearings are
specifically designed for air handling applications to
provide an average life (L-50) of 500,000 hours or more
at maximum cataloged operating speeds.
Drive assembly
Motor
Vibration isolators
Disconnect switch
Fan shaft and
bearings
Wheel
Hood support
rails
Curb cap/
inlet venturi
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5
ProductAccessories
Aluminum Insect Screen
Backdraft Damper
Backdraft dampers, with automatic or motorized operation, feature a felt seal on the
edge of the damper blades for quiet operation. Damper frames are constructed of 19-gauge
galvanized steel and blades are constructed of
26-gauge aluminum.
Motorized dampers are recommended for low CFM
applications to assure unrestricted airflow. Motorized
dampers are available with 115, 208, 230, 460,
575 or 24 volt service. End switches are available.
When a motorized damper option is selected a
12" (or greater) high roof curb is required.
Provides protection from entry of insects into the
interior of the building through the wheel inlet.
Variable Speed Control
Variable speed control is an optional accessory on
all DCLH and DCLP models to allow the adjustment
of airflow for system balancing. Variable speed
controllers are solid-state (Tri-ac) design and are
designed to start the motor on high speed for better
startup characteristics. Variable speed controls can be
shipped separately, factory installed, or field installed
on the unit at a later date. Motor must be ODP 115V,
PSC or shaded pole type.
NEMA-3R Disconnect Switch
Curb Hinge
The curb hinge arrangement provides easy access
to the exhaust fan, backdraft damper and duct for
servicing and cleaning. The curb hinge is of the piano
type, running the entire length of the fan’s curb base.
The curb hinge option is designed for use with a
standard canted curb only (1.5" less than fan base).
This option cannot be used with self flashing curbs.
Curb hinge ships loose for field mounting.
A NEMA-3R, rain proof, disconnect is available
shipped loose for field mounting & wiring or factory
mounted and wired.
NEMA-4 Disconnect Switch
A NEMA-4, water and dust tight, disconnect is available shipped loose for field mounting and wiring or
factory mounted and wired.
Two-Speed Switch
Retaining Chain
A retaining chain is available in conjunction with the
curb hinge arrangement to stabilize the unit and to
prevent damage from occurring to the unit while
servicing and cleaning.
Two speed switch is available for 2-speed/2-winding
motors to control the fan speed (high speed, low
speed, off). Available on single phase, 1 HP and
below.
Firestat
Security Hasp
A security hasp is available in conjunction with the
curb hinge arrangement to prevent removal of the
unit from the unit curb cap and prevent entrance into
the building through the roof’s ductwork.
Prefabricated Roof Curbs
Prefabricated roof curbs are available in heavy duty
galvanized steel or aluminum construction, in heights
of 8", 12", or 18". The standard curb (canted) is
provided with a factory installed wood nailer, while
the optional self flashing design is provided with
a 3/16" polystyrene gasket. Both the standard curb
and the self flashing design are provided with 1.5"
of insulation as standard and feature continuously
welded seams for added rigidity and moisture protection. Prefabricated curbs are also available in raised
cant, pitched and peak models. Refer to Bulletin
4910 for complete details on roof curb options.
The firestat option is intended to shut down the unit
in case of a fire in the building. If the firestat sensing
element is exposed to an air temperature over its
set point it will open, de-energizing the motor of the
unit. The standard firestat is set to open at 140ºF
and must be manually reset. The firestat cut-out point
is field adjustable from 100ºF to 170ºF. Firestats are
available for 115, 208, 230 and 277 volt, 1-phase
units, shipped loose for field installation.
Special Coatings
Powered roof exhausters often require special coatings for protective and decorative purposes. Available
coatings include air-dried enamel, air-dried epoxy,
and Heresite (air-dried phenolic). Contact your Twin
City Fan & Blower representative for more information
on available coatings and colors.
Minimum 12" high curbs are recommended for use
with motorized damper.
6
Twin City Fan Catalog 4135
EC MOTOR PSC MOTOR
SIZE
MTR
HP
SIZE
MTR
HP
RPM
950
1150
1350
060
060E
1/8
1425
1/4
1500
1575
1650
---
---
1750
950
1150
1350
070
070E
1/8
1425
1/4
1500
1575
1650
---
---
1750
950
1150
1350
080
080E
1/8
1425
1/4
1500
1575
1650
---
---
1750
950
1150
1350
085
085E
1/8
1425
1/4
1500
1575
1650
---
---
1750
0.00
BHP Sone
155
0.01 2.1
187
0.01 3.4
220
0.01 4.6
232
0.02 5.0
244
0.02 5.4
257
0.02 6.0
269
0.02 6.5
285
0.03 7.1
245
0.01 2.2
297
0.01 3.4
348
0.01 4.8
368
0.02 5.2
387
0.02 5.6
406
0.02 6.1
426
0.03 6.5
452
0.03 7.1
303
0.01 2.2
367
0.01 3.5
431
0.01 4.8
455
0.02 5.2
478
0.02 5.7
502
0.02 6.2
526
0.02 6.6
558
0.03 7.1
413
0.02 4.2
500
0.04 6.2
587
0.06 8.1
620
0.07 8.8
652
0.08 9.4
685
0.09 10.2
718
0.11 10.9
761
0.13 12.4
0.10
BHP Sone
103
0.01 1.8
149
0.01 3.4
189
0.01 4.9
203
0.02 5.2
217
0.02 5.6
231
0.02 6.1
244
0.03 6.5
262
0.03 7.1
153
0.01 2.0
226
0.01 3.4
290
0.02 5.1
312
0.02 5.6
334
0.02 6.0
356
0.02 6.2
378
0.03 6.7
406
0.03 7.1
180
0.01 2.0
269
0.01 3.4
349
0.02 4.9
378
0.02 5.6
406
0.02 6.0
434
0.02 6.5
461
0.03 6.9
497
0.03 7.5
340
0.02 4.3
443
0.04 6.4
539
0.06 8.1
575
0.07 8.8
610
0.09 9.4
645
0.10 10.2
679
0.11 10.9
725
0.13 12.4
0.125
BHP Sone
87
0.01 1.8
136
0.01 3.0
180
0.01 4.9
195
0.02 5.2
209
0.02 5.7
224
0.02 6.2
238
0.03 6.6
256
0.03 7.1
126
0.01 2.1
204
0.01 3.3
274
0.02 4.9
298
0.02 5.6
321
0.02 6.0
344
0.02 6.5
366
0.03 7.0
395
0.03 7.5
141
0.01 2.2
243
0.01 3.3
328
0.02 4.8
357
0.02 5.3
387
0.02 6.0
416
0.02 6.5
444
0.03 7.0
481
0.03 7.6
320
0.02 4.1
426
0.04 6.4
526
0.06 8.2
563
0.07 8.8
598
0.09 9.4
634
0.10 10.2
669
0.11 10.9
716
0.13 12.4
STATIC PRESSURE (INCHES W.G.)
0.25
0.375
0.50
0.625
0.75
0.875
1.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
125
0.01 4.1
145
0.02 4.5
163
0.02 5.1
181
0.02 5.6
198
0.03 6.0
221
0.03 7.1
94
0.02 4.9
129
0.02 5.5
152
0.03 5.8
179
0.03 6.4
182
0.02 4.7
212
0.02 4.9
241
0.02 5.2
270
0.03 5.9
297
0.03 6.4
333
0.03 7.2
183
0.03 6.0
221
0.03 6.3
262
0.03 6.9
204
0.01 4.8
247
0.02 5.2
284
0.02 5.3
320
0.02 6.0
354
0.03 6.5
397
0.03 7.2
191
0.02 3.9
338
0.04 5.9
456
0.06 8.1
497
0.08 8.8
537
0.09 9.8
577
0.10 10.7
615
0.12 11.5
666
0.14 12.4
118
0.03 6.5
PerformanceData
060 – 085 DCLH / DCLP
248
0.03 6.6
305
0.03 7.1
221
0.04 5.9
376
0.06 7.5
425
0.08 8.4
471
0.09 9.1
514
0.10 10.0
556
0.12 10.9
611
0.14 12.5
276
0.06 7.6
338
0.07 8.2
393
0.09 8.5
445
0.10 9.5
493
0.12 10.5
554
0.14 11.9
208
0.06 8.1
300
0.08 8.9
364
0.10 9.5
420
0.12 10.0
490
0.14 11.4
251
0.09 9.5
334
0.11 10.4
417
0.14 11.3
330
0.13 11.5
EC Motor is an Electronically Commutated Motor.
PSC Motor is a Permanent Split Capacitor Motor.
NOTES:
1.Performance shown is for installation Type A: Free inlet, Free outlet.
2.Performance ratings do not include the effects of appurtenances (accessories).
3.Sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301-90.
Type A: Free inlet fan hemispherical sone levels.
4.Highlighted speeds indicate nominal speeds without speed control on PSC motors. All other speeds are intermediate speeds set with the
solid-state speed controller.
5.1/8 HP motor is 3-speed (1650 RPM/1500 RPM/1350 RPM).
6.Speed control is available for ODP 115/60/1 only. PSC motors are wired at either the 1650 or the 1500 RPM taps.
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7
PerformanceData
090 – 120 DCLH / DCLP
EC MOTOR PSC MOTOR
SIZE
MTR
HP
090E
1/4
SIZE
090
---
095
095E
1/4
---
100E
120E
1/4
1/2
100
120
MTR RPM
0.00
HP
BHP Sone
534
950
0.02 4.7
646
1150
0.04 6.9
759
1350
0.06 8.8
801
1/8 1425
0.07 9.8
843
1500
0.08 10.4
885
1575
0.10 11.3
927
1650
0.11 12.1
984
--1750
0.13 13.2
721
950
0.03 5.0
873
1150
0.05 7.1
1025
1350
0.07 9.3
1082
1/8 1425
0.09 10.0
1138
1500
0.10 10.8
1195
1575
0.12 11.6
1252
1650
0.14 12.9
1328
--1750
0.16 14.0
443
500
0.01 1.1
620
1/15 700
0.01 2.9
762
860
0.03 4.3
886
1000
0.04 5.9
1/8
1028
1160
0.07 7.8
1285
1450
0.13 10.8
1/3
1550
1750
0.23 14.9
590
500
0.01 1.5
825
1/15 700
0.02 3.6
1014
860
0.04 5.4
1179
1000
0.06 7.0
1/8
1368
1160
0.09 9.0
1710
1450
0.17 12.8
1/3
2063
1750
0.30 17.0
0.10
BHP Sone
442
0.03 4.7
575
0.04 7.0
700
0.07 8.8
745
0.08 9.8
791
0.09 10.4
836
0.10 11.3
880
0.12 12.1
939
0.14 13.2
590
0.03 5.0
770
0.05 7.4
939
0.08 9.3
1001
0.09 10.0
1062
0.11 10.8
1123
0.13 11.6
1184
0.14 12.9
1264
0.17 14.0
0.125
BHP Sone
415
0.03 4.4
554
0.04 7.0
684
0.07 8.8
730
0.08 9.8
777
0.09 10.4
822
0.10 11.3
868
0.12 12.1
928
0.14 13.2
553
0.03 4.7
741
0.05 7.5
916
0.08 9.4
979
0.10 10.0
1042
0.11 10.8
1104
0.13 11.6
1166
0.15 12.9
1247
0.17 14.0
STATIC PRESSURE (INCHES W.G.)
0.25
0.375
0.50
0.625
BHP Sone BHP Sone BHP Sone BHP Sone
242
0.02 4.2
435
281
0.05 6.3 0.04 6.3
591
481
350
0.07 8.7 0.07 8.0 0.07 8.1
646
546
429
261
0.08 9.9 0.09 8.9 0.08 8.7 0.07 8.6
698
608
501
381
0.10 10.7 0.10 9.7 0.10 9.0 0.09 9.5
750
666
570
461
0.11 11.5 0.12 10.7 0.11 10.1 0.11 10.1
800
722
635
535
0.13 12.4 0.13 11.9 0.13 11.2 0.13 10.7
865
794
716
627
0.15 13.4 0.16 13.3 0.16 12.7 0.16 12.0
291
0.03 4.6
580
333
0.05 6.7 0.05 6.7
789
641
423
0.09 9.2 0.09 8.5 0.08 8.6
861
729
550
314
0.10 10.4 0.10 9.6 0.10 9.3 0.08 9.1
931
811
663
457
0.12 11.2 0.12 10.4 0.12 9.8 0.10 9.9
1001
889
760
585
0.14 12.2 0.14 11.5 0.14 10.7 0.13 10.9
1069
963
847
703
0.15 13.1 0.16 12.5 0.16 12.0 0.15 11.5
1158
1059
956
836
0.18 14.2 0.19 14.1 0.19 13.4 0.19 12.8
402
0.02 2.7
599
0.03 4.4
749
0.05 6.0
911
0.07 7.9
1193
0.13 10.8
1475
0.23 14.9
327
0.02 2.7
550
0.03 4.1
712
0.05 5.9
881
0.07 8.0
1169
0.13 10.8
1455
0.23 14.9
237
0.02 4.1
479
0.04 5.5
707
0.07 7.4
1046
0.14 11.3
1357
0.24 15.0
481
0.07 7.3
903
0.14 10.7
1253
0.24 15.1
734
0.13 9.9
1137
0.24 14.3
588
0.02 3.5
830
0.04 5.5
1025
0.07 7.1
1238
0.10 9.0
1607
0.19 12.8
1979
0.32 17.0
514
0.02 3.3
779
0.04 5.1
983
0.07 7.2
1203
0.10 9.3
1581
0.19 12.8
1958
0.32 17.0
464
0.04 5.2
745
0.07 6.5
1014
0.11 8.8
1441
0.20 13.4
1847
0.34 17.1
431
0.06 6.7
792
0.10 8.6
1288
0.21 12.8
1728
0.35 18.1
511
0.09 8.7
1118
0.21 12.2
1603
0.36 17.2
0.75
0.875
1.00
BHP Sone BHP Sone BHP Sone
320
0.10 10.1
425
0.13 11.1
530
0.15 12.1
422
0.15 12.3
380
0.11 10.7
513
0.14 11.7
681
0.18 12.9
498
0.16 12.8
540
0.12 10.5
1006
0.24 13.9
858
0.23 13.7
698
0.22 14.1
533
0.20 14.1
930
0.20 12.0
1469
0.36 17.1
703
0.19 12.6
1323
0.36 16.2
1167
0.35 15.9
999
0.34 16.6
EC Motor is an Electronically Commutated Motor.
PSC Motor is a Permanent Split Capacitor Motor.
* 3-phase units are supplied with 1/8 HP 860 RPM, 1/4 HP 1160 RPM and 1/2 HP 1750 RPM motors.
NOTES:
1.Performance shown is for installation Type A: Free inlet, Free outlet.
2.Performance ratings do not include the effects of appurtenances (accessories).
3.Sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301-90.
Type A: Free inlet fan hemispherical sone levels.
4.Highlighted speeds indicate nominal speeds without speed control on PSC motors. All other speeds are intermediate speeds set with the
solid-state speed controller.
5.Speed control is available for ODP 115/60/1 only.
8
Twin City Fan Catalog 4135
MOTOR
RPM
HP
775
925
1/4
1250
1510
1590
1/3
1665
0.00
BHP Sone
746
0.03 4.1
891
0.05 5.8
1204
0.13 8.6
1454
0.24 11.4
1531
0.28 12.2
1603
0.32 13.3
0.125
BHP Sone
609
0.04 4.3
772
0.06 5.8
1112
0.14 8.6
1377
0.24 11.4
1458
0.28 12.2
1533
0.33 13.3
0.25
BHP Sone
461
0.04 4.0
671
0.06 5.6
1029
0.15 9.4
1305
0.25 11.6
1389
0.29 12.2
1467
0.33 13.3
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.625
0.75
0.875
1.00
1.125
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
513
0.06 5.4
952
0.15 9.3
1238
0.26 12.1
1324
0.30 13.3
1404
0.34 14.0
881
0.15 9.0
1174
0.26 12.3
1263
0.30 13.3
1345
0.35 14.6
777
0.15 8.4
1114
1054
973
837
0.27 12.1 0.27 11.8 0.27 11.6 0.26 10.8
1203
1148
1088
999
860
0.31 13.1 0.31 13.0 0.32 12.8 0.31 12.4 0.30 11.8
1287
1232
1179
1116
1020
877
0.35 14.5 0.36 14.3 0.36 13.9 0.36 14.0 0.36 13.3 0.34 12.6
120 BCLH / BCLP
MOTOR
RPM
HP
575
825
1/4
1050
1300
1365
1/3
1430
1540
1/2
1650
0.00
BHP Sone
767
0.02 3.1
1101
0.06 6.3
1401
0.12 9.1
1734
0.23 11.9
1821
0.26 12.8
1908
0.30 13.7
2054
0.38 15.2
2201
0.46 17.0
0.125
BHP Sone
580
0.02 3.0
967
0.07 6.4
1292
0.13 9.1
1645
0.24 11.9
1736
0.28 12.8
1826
0.32 13.7
1978
0.39 15.2
2130
0.48 17.0
PerformanceData
100 BCLH / BCLP
STATIC PRESSURE (INCHES W.G.)
0.25
0.375
0.50
0.625
0.75
0.875
1.00
1.125
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
842
0.07 6.1
1197
0.14 9.6
1562
0.25 11.9
1656
0.29 12.8
1749
0.33 13.7
1906
0.41 15.2
2062
0.50 17.0
651
0.07 5.9
1099
0.14 9.3
1487
0.26 12.9
1582
0.30 13.5
1677
0.34 14.3
1837
0.42 15.6
1996
0.51 17.0
971
0.14 8.6
1412
0.26 12.9
1513
0.30 14.0
1611
0.34 14.9
1774
0.43 16.3
1935
0.52 18.0
1323
0.27 12.1
1435
0.31 13.7
1542
0.35 14.9
1712
0.43 16.5
1877
0.53 18.7
1217
0.27 11.6
1342
0.31 12.7
1460
0.36 14.0
1646
0.44 16.3
1819
0.53 18.8
1100
0.27 11.1
1237
0.31 12.3
1365
0.36 13.3
1569
0.44 15.8
1756
0.54 18.6
1116
0.31 11.6
1263
1132
0.36 13.1 0.36 12.3
1481
1387
1283
0.45 15.2 0.45 14.6 0.45 14.2
1684
1603
1515
1302
0.55 17.8 0.55 17.5 0.55 16.8 0.55 15.5
140 BCLH / BCLP
MOTOR
RPM
HP
475
550
1/4
825
1105
1165
1/3
1225
1310
1/2
1400
1500
3/4
1605
1685
1
1765
0.00
BHP Sone
876
0.02 2.8
1014
0.03 3.9
1521
0.10 8.1
2038
0.23 12.8
2148
0.27 13.7
2259
0.31 14.5
2416
0.38 15.5
2582
0.47 17.2
2766
0.58 19.0
2960
0.71 21
3107
0.82 23
3255
0.94 25
0.125
BHP Sone
601
0.02 2.5
785
0.03 3.5
1385
0.11 8.1
1939
0.25 12.8
2055
0.29 13.7
2171
0.33 14.5
2334
0.40 15.5
2505
0.49 17.2
2695
0.60 19.0
2893
0.73 21
3044
0.84 23
3195
0.97 25
STATIC PRESSURE (INCHES W.G.)
0.25
0.375
0.50
0.625
0.75
0.875
1.00
1.125
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1219
0.11 7.6
1832
0.26 12.8
1955
0.30 13.7
2076
0.35 14.5
2247
0.42 15.5
2425
0.51 17.2
2621
0.62 19.0
2824
0.76 21
2979
0.87 23
3133
0.99 25
1048
0.11 7.3
1708
0.26 12.7
1842
0.31 13.7
1973
0.36 14.7
2153
0.43 15.9
2339
0.53 17.2
2542
0.64 19.0
2753
0.78 21
2911
0.89 23
3068
1.02 25
1582
0.27 11.9
1720
0.31 13.3
1857
0.36 14.5
2049
0.44 15.8
2246
0.54 17.5
2460
0.65 19.0
2677
0.79 21
2841
0.91 23
3002
1.04 25
1458
0.27 11.2
1605
0.31 12.4
1745
0.36 13.6
1940
0.44 15.5
2145
0.54 17.1
2369
0.66 19.3
2597
0.80 22
2767
0.93 23
2933
1.06 25
1302
0.27 10.6
1477
0.31 12.1
1634
0.37 13.0
1837
0.45 14.5
2045
0.54 16.8
2274
0.66 19.1
2510
0.81 22
2687
0.93 23
2860
1.07 25
1501
0.36 12.5
1732
0.45 14.4
1949
0.54 16.3
2181
0.67 18.3
2421
0.81 21
2603
0.94 23
2781
1.08 25
1606
0.45 13.6
1850
0.55 15.8
2092
0.67 17.7
2334
0.82 20
2518
0.94 23
2700
1.08 25
1591
0.54 14.7
1895
0.67 17.2
2167
1969
0.82 19.4 0.82 18.7
2357
2190
1979
0.95 22 0.95 21 0.94 19.6
2542
2391
2216
1.09 24 1.09 23 1.09 22
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
www.tcf.com
9
PerformanceData
160 BCLH / BCLP
MOTOR
RPM
HP
475
625
1/4
775
930
975
1/3
1020
1100
1/2
1180
1260
3/4
1340
1405
1
1475
0.00
BHP Sone
1361
0.03 3.9
1791
0.07 6.5
2220
0.14 9.4
2664
0.24 12.5
2793
0.27 13.4
2922
0.31 14.7
3152
0.39 16.4
3381
0.48 17.7
3610
0.59 19.1
3839
0.71 20
4025
0.82 22
4226
0.94 24
0.125
BHP Sone
1031
0.04 3.3
1564
0.08 6.6
2047
0.15 9.4
2523
0.25 12.5
2659
0.28 13.4
2795
0.32 14.7
3034
0.40 16.4
3271
0.50 17.7
3508
0.60 19.1
3743
0.72 20
3934
0.83 22
4139
0.96 24
STATIC PRESSURE (INCHES W.G.)
0.25
0.375
0.50
0.625
0.75
0.875
1.00
1.25
1.50
1.75
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1272
0.08 5.6
1837
0.16 9.0
2365
0.26 12.7
2511
0.30 13.4
2655
0.34 14.7
2907
0.42 16.4
3155
0.51 17.7
3400
0.62 19.1
3643
0.74 20
3839
0.85 22
4049
0.98 24
1597
0.16 8.1
2181
0.27 12.0
2341
0.31 13.4
2497
0.35 14.7
2768
0.43 16.5
3030
0.52 17.7
3286
0.63 19.1
3538
0.76 20
3740
0.87 22
3956
1.00 24
1235
0.15 8.0
1984
0.27 10.8
2156
0.31 12.3
2323
0.36 13.8
2612
0.44 16.2
2891
0.54 18.1
3162
0.65 19.4
3425
0.77 20
3635
0.88 22
3858
1.01 24
1748
0.27 10.7
1954
0.31 11.4
2141
0.36 12.5
2447
0.45 15.0
2741
0.55 17.3
3027
0.66 19.2
3304
0.79 21
3523
0.90 22
3754
1.03 24
1683
0.31 10.9
1921
0.36 12.0
2275
0.45 14.4
2587
0.56 16.2
2884
0.67 18.5
3173
0.80 20
3402
0.91 22
3643
1.05 24
1593
0.34 11.6
2066
0.45 13.5
2424
0.56 15.6
2739
0.68 17.5
3038
0.81 19.7
3275
0.93 22
3525
1.06 23
1775
0.43 13.1
2229
0.55 15.0
2585
0.68 17.2
2902
0.82 19.3
3146
0.94 21
3403
1.08 23
2180
0.66 15.2
2589
2120
0.81 18.1 0.78 16.8
2875
2526
0.94 20 0.93 18.7
3155
2869
2483
1.09 21 1.09 21 1.06 19.6
180 BCLH / BCLP
MOTOR
RPM
HP
475
1/4
575
660
690
1/3
725
780
1/2
830
890
3/4
950
1000
1
1045
1120
1-1/2
1195
1255
2
1315
0.00
BHP Sone
2393
0.09 3.9
2897
0.15 6.3
3325
0.23 8.1
3476
0.26 8.7
3653
0.31 9.6
3930
0.38 11.0
4182
0.46 12.2
4484
0.57 14.0
4786
0.69 16.4
5038
0.80 17.5
5265
0.92 18.6
5643
1.13 21
6020
1.37 22
6323
1.59 24
6625
1.83 25
0.125
BHP Sone
1883
0.10 4.4
2464
0.17 6.8
2948
0.25 8.2
3115
0.28 8.8
3308
0.33 9.6
3608
0.41 11.0
3879
0.49 12.2
4201
0.59 14.0
4521
0.72 16.4
4786
0.84 17.5
5023
0.95 18.6
5417
1.17 21
5809
1.41 22
6121
1.63 24
6432
1.87 25
0.25
BHP Sone
1420
0.10 5.0
2101
0.18 6.8
2596
0.26 8.6
2769
0.30 9.2
2973
0.34 10.0
3293
0.42 11.6
3581
0.50 13.1
3924
0.62 14.7
4261
0.74 16.6
4539
0.86 17.5
4786
0.98 18.6
5195
1.20 21
5600
1.45 22
5922
1.67 24
6242
1.91 25
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1684
0.18 7.3
2296
0.27 9.0
2486
0.31 9.4
2696
0.35 10.1
3016
0.44 11.6
3304
0.52 12.9
3653
0.63 15.0
4002
0.76 17.0
4291
0.88 18.8
4550
1.00 19.8
4975
1.22 21
5394
1.48 23
5725
1.70 24
6054
1.95 25
1912
0.27 9.3
2151
0.32 9.8
2402
0.36 10.7
2766
0.45 12.0
3071
0.53 13.0
3421
0.65 14.5
3767
0.78 17.1
4057
0.90 18.3
4319
1.02 19.3
4754
1.25 21
5187
1.50 24
5529
1.73 25
5867
1.98 26
2085
0.44 12.7
2518
0.55 13.7
2956
0.67 15.8
3354
0.81 17.6
3663
0.93 18.6
3929
1.06 19.5
4363
1.29 21
4795
1.55 23
5144
1.78 25
5494
2.03 27
2302
0.65 16.4
2841
0.82 18.3
3219
0.96 19.4
3532
1.08 20
4018
1.32 22
4468
1.58 23
4817
1.82 25
5163
2.08 27
2036
0.74 18.5
2623
0.93 19.9
3035
1.09 21
3613
1.34 23
4126
1.61 25
4510
1.85 26
4872
2.12 27
2290
0.99 21
3107
1.33 23
3724
1.64 25
4156
1.88 26
4559
2.15 28
2351
1.20 24
3219
1.60 25
3744
1.89 27
4201
2.18 28
2480
1.45 25
3218
1.83 27
3780
2.17 29
3241
2.08 29
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
10
Twin City Fan Catalog 4135
MOTOR
RPM
HP
1/4
1/3
1/2
3/4
1
1-1/2
2
0.00
BHP Sone
3171
480
0.16 6.1
3534
535
0.22 7.9
3633
550
0.24 8.4
3931
595
0.30 9.9
4294
650
0.39 11.6
4492
680
0.44 12.3
4756
720
0.53 13.8
5087
770
0.65 15.3
5285
800
0.72 16.3
5648
855
0.88 18.4
5945
900
1.03 21
6441
975
1.31 24
6672
1010
1.46 25
7101
1075
1.76 27
0.125
BHP Sone
2753
0.17 6.5
3172
0.24 7.9
3284
0.26 8.4
3612
0.32 9.9
4006
0.41 11.6
4219
0.47 12.3
4500
0.55 13.8
4848
0.67 15.3
5056
0.75 16.3
5435
0.91 18.4
5744
1.06 21
6256
1.35 24
6494
1.49 25
6935
1.80 27
0.25
BHP Sone
2259
0.19 6.2
2726
0.26 7.5
2849
0.28 8.3
3219
0.34 9.9
3665
0.44 11.7
3902
0.50 13.0
4211
0.58 14.1
4586
0.70 15.3
4807
0.78 16.3
5206
0.95 18.4
5529
1.10 21
6060
1.38 24
6306
1.53 25
6760
1.83 27
0.375
BHP Sone
1581
0.18 6.6
2269
0.27 7.9
2416
0.29 8.3
2829
0.36 9.5
3295
0.46 11.2
3542
0.52 12.0
3870
0.61 13.7
4279
0.73 15.6
4520
0.81 16.6
4952
0.98 18.9
5295
1.13 21
5852
1.42 24
6107
1.57 25
6576
1.87 27
0.25
BHP Sone
2919
0.23 6.0
3275
0.27 6.4
3630
0.31 7.2
3903
0.35 8.2
4538
0.46 10.7
4780
0.51 11.4
5137
0.59 12.6
5662
0.73 14.1
5951
0.81 14.8
6409
0.95 15.6
7090
1.20 18.1
7539
1.39 19.6
8096
1.65 21
8428
1.82 23
0.375
BHP Sone
2040
0.22 6.7
2562
0.27 7.2
2972
0.32 7.9
3263
0.36 8.3
3972
0.48 9.9
4258
0.54 10.4
4675
0.62 12.2
5259
0.76 14.3
5568
0.85 15.2
6050
1.00 16.8
6755
1.26 19.2
7218
1.45 21
7792
1.72 22
8134
1.90 23
STATIC PRESSURE (INCHES W.G.)
0.50
0.625
0.75
1.00
1.25
1.50
1.75
2.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1515
0.24 8.1
1760
0.27 8.6
2380
0.37 9.8
2931
0.48 11.2
3205
0.54 12.3
3550
0.64 13.0
3965
0.76 15.0
4211
0.85 16.1
4663
1.01 18.5
5029
1.17 21
5623
1.46 25
5893
1.61 25
6382
1.91 27
1635
0.33 10.0
2479
0.48 11.5
2821
0.55 12.1
3214
0.65 13.5
3669
0.79 14.7
3927
0.87 15.5
4385
1.04 17.7
4754
1.20 20
5369
1.50 24
5653
1.65 25
6169
1.96 28
1756
0.43 11.5
2253
0.52 12.3
2814
0.65 13.3
3342
0.80 15.0
3626
0.89 16.0
4119
1.07 17.6
4500
1.23 19.3
5119
1.53 23
5406
1.69 25
5938
2.00 28
2367
0.74 15.4
2827
0.87 16.5
3514
1.10 17.8
3963
1.28 19.9
4650
1.60 23
4951
1.76 24
5493
2.08 26
2552
1.01 18.1
3242
1.24 20
4126
3390
1.63 23 1.56 23
4467
3878
1.80 24 1.79 25
5066
4589
2.15 26 2.18 26
2992
1.66 25
3979
2.14 27
PerformanceData
210 BCLH / BCLP
3119
2.00 27
240 BCLH / BCLP
MOTOR
RPM
HP
410
1/4
435
460
1/3
480
530
1/2
550
580
3/4
625
650
1
690
750
1-1/2
790
840
2
870
0.00
BHP Sone
4252
0.17 5.4
4511
0.20 6.1
4770
0.24 7.0
4978
0.27 7.8
5496
0.37 9.8
5704
0.41 10.8
6015
0.48 12.1
6481
0.60 13.7
6740
0.68 14.5
7155
0.81 15.6
7778
1.05 18.1
8192
1.22 19.6
8711
1.47 21
9022
1.63 23
0.125
BHP Sone
3631
0.21 5.8
3923
0.25 6.5
4212
0.29 7.2
4442
0.32 7.9
5010
0.42 9.8
5235
0.47 10.8
5570
0.55 12.1
6068
0.67 13.7
6343
0.75 14.5
6781
0.89 15.6
7433
1.13 18.1
7865
1.31 19.6
8403
1.56 21
8724
1.73 23
STATIC PRESSURE (INCHES W.G.)
0.50
0.625
0.75
0.875
1.00
1.25
1.50
1.75
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1905
0.29 8.0
2517
0.36 8.9
3415
0.49 10.4
3707
0.55 10.9
4130
0.64 12.0
4773
0.79 13.3
5127
0.88 14.6
5668
1.04 16.3
6423
1.31 19.4
6906
1.51 21
7496
1.78 23
7846
1.97 24
2652
0.48 10.9
3092
0.55 11.6
3621
0.65 12.4
4288
0.80 13.7
4640
0.90 14.5
5211
1.07 15.8
6051
1.35 18.7
6576
1.55 20
7199
1.84 23
7562
2.02 25
2890
0.63 13.1
3794
0.81 14.1
4195
0.91 14.9
4773
1.08 16.3
5624
1.37 18.1
6194
1.59 19.4
6875
1.88 22
7263
2.07 24
3081
0.78 14.8
3644
0.91 15.6
4345
1.09 16.5
5222
1.39 18.5
5786
1.61 19.8
6502
1.91 21
6923
2.11 23
3799
1.08 16.9
4836
1.40 18.9
5416
1.62 20
6121
1.94 22
6551
2.14 23
3763
1.36 19.3
4601
1.63 21
5429
4548
1.96 22 1.95 23
5867
5123
2.17 24 2.18 24
3923
2.05 25
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
www.tcf.com
11
PerformanceData
300 BCLH / BCLP
MOTOR
RPM
HP
330
1/4
360
380
1/3
405
430
1/2
450
470
3/4
520
530
1
565
600
1-1/2
650
670
2
715
750
3
820
850
5
970
0.00
BHP Sone
5145
0.15 4.0
5612
0.19 4.7
5924
0.22 5.2
6314
0.27 5.9
6704
0.32 6.6
7016
0.37 7.3
7327
0.42 8.1
8107
0.57 10.5
8263
0.61 11.1
8808
0.74 12.5
9354
0.88 14.0
10134
1.12 15.7
10445
1.23 16.5
11147
1.49 18.5
11692
1.72 20
12784
2.25 23
13252
2.51 24
15122
3.73 33
0.125
BHP Sone
4204
0.18 5.0
4712
0.23 5.7
5044
0.26 6.2
5457
0.31 6.7
5867
0.36 7.2
6195
0.41 7.8
6523
0.47 8.6
7345
0.62 10.5
7509
0.65 11.1
8083
0.78 12.5
8655
0.93 14.0
9470
1.17 15.7
9795
1.28 16.5
10525
1.55 18.5
11091
1.78 20
12221
2.31 23
12703
2.57 24
14628
3.79 33
0.25
BHP Sone
3256
0.21 5.7
3992
0.27 6.4
4387
0.30 6.6
4850
0.36 7.3
5300
0.41 8.2
5656
0.46 9.1
6002
0.52 10.1
6845
0.67 12.3
7011
0.71 13.0
7589
0.84 14.3
8164
0.99 15.1
8984
1.24 16.6
9312
1.35 17.3
10052
1.62 18.5
10628
1.85 20
11775
2.39 23
12265
2.65 24
14218
3.88 33
STATIC PRESSURE (INCHES W.G.)
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
3310
0.44 9.1
4090
0.54 9.8
4701
0.61 10.8
5866
0.79 12.9
6062
0.83 13.0
6718
0.97 15.0
7350
1.13 16.6
8236
1.38 19.2
8580
1.50 19.6
9340
1.77 21
9923
2.01 23
11078
2.56 25
11570
2.82 27
13539
4.07 34
3552
0.74 12.9
4220
0.84 13.7
5442
1.07 15.2
6393
1.26 17.1
7442
1.53 18.8
7821
1.65 19.6
8646
1.94 22
9273
2.18 24
10498
2.74 27
11007
3.01 29
13003
4.28 37
4054
1.13 17.0
6210
1.62 19.0
6798
1.77 19.8
7879
2.10 22
8582
2.36 23
9882
2.93 28
10422
3.20 29
12516
4.50 39
4442
1.55 19.7
6579
2.16 22
7625
2.49 24
9232
3.12 27
9815
3.40 29
12003
4.72 38
5990
2.39 24
8309
3.25 28
9076
3.57 30
11477
4.94 38
6884
3.18 27
7910
3.63 29
10918
5.17 39
5886
3.25 29
10202
5.34 40
9161
5.40 38
7811
5.18 38
360 BCLH / BCLP
MOTOR
RPM
HP
250
1/3
280
300
1/2
320
340
3/4
365
380
1
400
420
1-1/2
460
480
2
505
550
3
575
650
5
685
0.00
BHP Sone
7612
0.21 4.1
8525
0.30 5.3
9134
0.37 6.3
9743
0.45 7.2
10352
0.54 8.0
11113
0.67 8.8
11570
0.75 9.5
12179
0.88 10.4
12788
1.01 11.2
14006
1.33 14.1
14615
1.51 15.9
15376
1.76 17.6
16746
2.28 21
17507
2.60 22
19791
3.76 27
20856
4.40 30
0.125
BHP Sone
6008
0.26 4.5
7143
0.36 5.7
7856
0.43 6.6
8551
0.52 7.5
9235
0.61 8.1
10079
0.75 8.8
10580
0.84 9.5
11242
0.97 10.4
11899
1.12 11.2
13198
1.45 14.1
13843
1.63 15.9
14644
1.89 17.6
16076
2.42 21
16867
2.75 22
19227
3.93 27
20322
4.58 30
0.25
BHP Sone
3071
0.23 4.8
49973
0.36 5.9
6062
0.45 6.5
7041
0.55 6.9
7934
0.66 7.8
8948
0.80 9.1
9516
0.90 10.1
10248
1.04 11.2
10959
1.19 12.0
12349
1.53 14.8
13032
1.73 16.1
13878
1.99 17.6
15381
2.54 21
16205
2.88 22
18648
4.08 27
19775
4.74 30
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.625
0.75
0.875
1.00
1.25
1.50
1.75
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
4762
0.51 7.7
5930
0.64 8.3
7296
0.81 9.2
8058
0.92 9.7
8995
1.07 10.3
9870
1.23 11.7
11453
1.59 15.0
12192
1.80 16.6
13090
2.07 18.2
14663
2.63 22
15522
2.99 23
18053
4.22 27
19214
4.89 30
5198
0.75 9.7
6143
0.88 10.3
7252
1.05 10.9
8347
1.24 12.0
10301
1.63 13.9
11185
1.84 15.3
12216
2.13 17.7
13923
2.70 21
14826
3.07 23
17445
4.33 28
18639
5.02 30
5229
0.95 11.1
6581
1.18 12.3
8811
1.62 14.3
9878
1.86 15.6
11087
2.17 17.0
13066
2.76 20
14066
3.13 22
16830
4.42 29
18062
5.12 31
7204
1.54 14.7
8341
1.80 15.9
9713
2.15 17.4
11996
2.80 19.9
13138
3.18 21
16177
4.49 28
17467
5.21 31
6678
1.68 16.1
8259
2.07 17.7
10739
2.78 20
12042
3.20 22
15428
4.56 27
16823
5.28 31
6540
1.90 17.7
9397
2.70 20
10768
8072
3.15 22 2.90 22
14543
12432
4.61 26 4.57 26
16081
14281
5.35 30 5.41 28
10155
4.36 27
12134
5.27 28
9871
4.95 29
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
12
Twin City Fan Catalog 4135
MOTOR
RPM
HP
230
1/2
250
270
3/4
285
300
1
315
330
1-1/2
360
370
2
395
430
3
455
500
5
540
580
7-1/2
615
0.00
BHP Sone
9696
0.32 4.7
10539
0.41 5.9
11382
0.52 7.0
12015
0.61 7.9
12647
0.72 8.8
13279
0.83 9.5
13912
0.95 10.5
15177
1.24 12.1
15598
1.34 12.9
16652
1.63 14.3
18128
2.11 16.7
19181
2.50 18.8
21078
3.31 23
22765
4.17 27
24451
5.17 31
25927
6.17 34
0.125
BHP Sone
8168
0.39 5.4
9138
0.49 6.1
10088
0.60 7.2
10790
0.70 7.9
11487
0.81 8.8
12176
0.93 9.5
12861
1.06 10.5
14216
1.36 12.1
14664
1.47 12.9
15778
1.77 14.3
17326
2.26 16.7
18425
2.66 18.8
20391
3.49 23
22129
4.37 27
23860
5.38 31
25369
6.39 34
0.25
BHP Sone
5987
0.42 5.8
7522
0.53 6.4
8686
0.65 7.2
9497
0.76 8.2
10283
0.87 9.2
11042
1.00 10.2
11784
1.14 11.1
13232
1.45 12.6
13707
1.56 13.4
14884
1.88 14.4
16509
2.38 16.7
17655
2.79 18.8
19694
3.65 23
21486
4.54 27
23262
5.57 31
24807
6.59 34
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.625
0.75
1.00
1.25
1.50
1.75
2.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
6112
0.65 7.7
7638
0.80 8.4
8810
0.92 9.2
9747
1.05 9.7
10600
1.19 10.5
12209
1.51 12.7
12726
1.63 13.5
13981
1.96 15.1
15683
2.48 17.6
16875
2.91 19.1
18986
3.79 23
20834
4.70 27
22658
5.75 31
24238
6.78 34
5635
0.82 9.2
7435
1.05 10.0
8901
1.24 10.8
11034
1.57 12.1
11619
1.69 12.9
13000
2.02 14.9
14835
2.56 17.7
16089
2.99 19.7
18277
3.90 24
20175
4.83 28
22046
5.90 31
23664
6.96 34
5558
1.02 10.6
9121
1.60 12.6
10043
1.74 13.3
11876
2.09 14.8
13903
2.63 17.2
15248
3.07 19.5
17556
3.98 24
19518
4.94 28
21434
6.04 33
23086
7.11 35
7220
1.57 13.4
10052
2.12 15.1
12838
2.70 17.3
14335
3.15 19.0
16786
4.07 24
18845
5.03 29
20821
6.15 33
22510
7.24 35
8670
2.50 17.4
11502
3.24 19.5
15045
4.23 23
17371
5.22 27
19523
6.34 32
21330
7.46 36
11971
4.24 23
15542
5.38 27
18082
6.54 30
20038
7.67 34
12225
5.23 27
16135
6.70 30
18590
7.87 33
12810
6.41 29
16439
8.02 33
PerformanceData
420 BCLH / BCLP
13084
7.52 33
480 BCLH / BCLP
MOTOR
RPM
HP
190
1/2
210
225
3/4
240
250
1
265
285
1-1/2
300
320
2
335
350
3
380
420
5
455
500
7-1/2
520
0.00
BHP Sone
10809
0.31 4.1
11947
0.42 5.0
12800
0.52 5.7
13653
0.63 6.6
14222
0.71 7.3
15076
0.85 8.2
16213
1.06 9.7
17067
1.23 11.0
18204
1.50 12.5
19058
1.72 13.5
19911
1.96 14.6
21618
2.50 16.3
23893
3.38 19.7
25884
4.30 23
28444
5.70 29
29582
6.42 30
0.125
BHP Sone
8862
0.38 4.8
10187
0.50 5.6
11149
0.60 6.2
12098
0.72 6.9
12726
0.81 7.4
13663
0.95 8.2
14900
1.17 9.7
15819
1.35 11.0
17034
1.62 12.5
17940
1.85 13.5
18841
2.09 14.6
20632
2.65 16.3
23002
3.55 19.7
25061
4.48 23
27695
5.90 29
28862
6.62 30
0.25
BHP Sone
4551
0.33 5.0
7615
0.53 6.0
9175
0.66 6.6
10434
0.79 7.2
11200
0.88 8.0
12278
1.04 9.2
13625
1.26 10.7
14602
1.45 11.9
15881
1.73 13.0
16831
1.96 13.9
17774
2.22 14.8
19648
2.79 16.3
22111
3.70 19.7
24239
4.65 23
26947
6.09 29
28142
6.82 30
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.625
0.75
0.875
1.00
1.25
1.50
1.75
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
6844
0.73 7.6
8393
0.88 8.1
10221
1.08 8.8
12053
1.34 9.8
13250
1.54 11.3
14719
1.83 13.0
15751
2.07 14.5
16749
2.33 15.5
18691
2.92 17.5
21225
3.85 20
23417
4.81 23
26198
6.28 29
27422
7.02 30
9166
1.29 10.4
11134
1.56 11.3
13136
1.90 12.3
14403
2.16 13.2
15573
2.43 14.7
17724
3.04 17.6
20374
3.99 21
22615
4.97 24
25452
6.45 29
26703
7.20 30
7112
1.29 11.0
10448
1.83 12.7
12399
2.18 13.6
13977
2.49 14.8
16539
3.14 17.2
19482
4.12 21
21830
5.12 25
24731
6.62 30
26000
7.38 32
8945
1.91 13.5
11366
2.39 14.6
14985
3.19 17.0
18410
4.23 20
20988
5.26 25
24016
6.79 30
25316
7.55 33
12559
3.08 17.3
17080
4.30 20
19989
5.37 24
23262
6.94 30
24615
7.72 33
9102
2.64 16.6
15229
4.27 20
18793
15125
5.46 23 5.30 24
22401
20232
7.08 29 7.27 28
23856
21978
7.87 32 8.12 30
16786
7.06 28
19329
8.14 30
11480
5.89 27
15041
7.43 30
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
www.tcf.com
13
PerformanceData
540 BCLH / BCLP
MOTOR
RPM
HP
200
1
215
230
1-1/2
245
260
2
275
290
3
310
345
5
370
395
7-1/2
420
445
10
470
495
15
520
0.00
BHP Sone
16243
0.66 5.8
17461
0.82 6.7
18679
1.00 7.6
19897
1.21 8.8
21116
1.45 10.0
22334
1.72 11.4
23552
2.01 13.2
25176
2.46 15.1
28019
3.39 17.8
30049
4.18 20
32080
5.09 22
34110
6.12 24
36140
7.28 28
38171
8.57 30
40201
10.02 35
42231
11.61 39
0.125
BHP Sone
14151
0.77 6.2
15505
0.94 6.8
16847
1.13 7.6
18177
1.35 8.8
19494
1.59 10.0
20801
1.87 11.4
22098
2.17 13.2
23816
2.63 15.1
26797
3.58 17.8
28910
4.39 20
31012
5.31 22
33106
6.36 24
35193
7.53 28
37273
8.84 30
39349
10.30 35
41420
11.91 39
0.25
BHP Sone
11655
0.84 6.7
13436
1.03 7.6
15031
1.23 8.5
16505
1.46 9.8
17918
1.72 11.1
19299
2.01 12.3
20661
2.32 13.6
22460
2.79 15.2
25576
3.77 17.8
27771
4.59 20
29945
5.53 22
32102
6.58 24
34245
7.77 28
36376
9.10 30
38497
10.57 35
40610
12.20 39
STATIC PRESSURE (INCHES W.G.)
0.375
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
9116
0.96 7.8
12100
1.27 8.8
14281
9755
1.55 9.6 1.38 9.7
16083
12970
1.82 10.6 1.82 11.0
17717
15435
2.12 12.4 2.19 12.1
19239
17374
2.45 13.9 2.55 13.0
21157
19654
14233
2.94 16.2 3.06 15.3 2.99 15.2
24383
23199
20005
13444
3.94 18.7 4.09 19.1 4.32 17.9 3.82 17.9
26640
25553
23005
18768
4.77 21 4.95 21 5.25 20 5.26 20
28879
27848
25689
22658
17217
5.73 22 5.92 23 6.27 23 6.49 22 6.05 22
31100
30110
28169
25739
22104
6.80 24 7.01 26 7.40 26 7.71 25 7.76 26
33299
32354
30538
28501
25775
8.01 28 8.23 28 8.66 29 9.02 28 9.27 28
35480
34584
32849
31065
28826
9.35 30 9.59 30 10.05 32 10.47 33 10.80 31
37646
36795
35126
33487
31597
10.84 35 11.09 35 11.58 36 12.04 37 12.44 36
39799
38989
37382
35835
34185
12.48 39 12.75 39 13.27 39 13.76 42 14.22 41
15856
6.78 25
21465
9.03 27
25811
10.93 31
29194
12.73 35
32166
14.59 39
14846
7.59 27
20969
10.30 31
25817
12.68 34
29635
14.81 38
20693
11.67 34
25940
14.55 38
20759
13.24 37
NOTES:
1.Performance shown is for Installation Type A: Free inlet, free outlet.
2.Power rating (BHP) does not include transmission losses.
3.Performance ratings do not include the effects of appurtenances (accessories).
4.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.
5.Type A: Free inlet fan hemispherical sone levels.
14
Twin City Fan Catalog 4135
C
B
HOOD
A
D
E SQ., INSIDE
CENTRIFUGAL
FAN ASSEMBLY
SIZE
060
070
080
085
090
095
100
120
A MAX.
14.13
14.13
14.13
15.88
15.88
15.88
18.88
19.13
FAN DIMENSIONS
B
C
D
26.13
22.00
2.00
26.13
22.00
2.00
26.13
28.00
2.00
26.13
28.00
2.38
26.13
28.00
2.38
26.13
28.00
2.38
26.63
30.00
2.38
26.63
30.00
2.63
E. SQ.
17.00
17.00
17.00
17.00
17.00
17.00
17.00
20.00
MAX HP
MAX
FRAME
1/8
1/8
1/8
1/8
1/8
1/8
1/4
1/4
48
48
48
48
48
48
48
48
CURB DIMS.
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
x
x
x
x
x
x
x
x
DAMPER SIZE
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
x
x
x
x
x
x
x
x
DimensionalData
DCLH
AVG. SHIP
WT. (LBS.)
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
55
55
59
62
62
62
78
81
D4135-2C
DCLP
B
C
A
2.00 TYP
SIZE
060
070
080
085
090
095
100
120
A MAX.
14.75
14.75
14.75
14.75
14.75
14.75
18.25
18.25
FAN DIMENSIONS
B
C
22.00
24.00
22.00
24.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
28.00
28.00
E. SQ.
17.00
17.00
17.00
17.00
17.00
17.00
17.00
20.00
E SQ., INSIDE
MAX HP
MAX
FRAME
1/8
1/8
1/8
1/8
1/8
1/8
1/4
1/4
48
48
48
48
48
48
48
48
CURB DIMS.
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
x
x
x
x
x
x
x
x
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
DAMPER SIZE
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
x
x
x
x
x
x
x
x
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
AVG. SHIP
WT. (LBS.)
39
39
40
43
43
43
53
59
D4135-4D
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15
DimensionalData
BCLH
HOOD
C
B
A
D
E SQ., INSIDE
SIZE
100
120
140
160
180
210
240
300
360
420
480
540
A MAX.
17.75
18.50
19.81
20.25
21.13
23.13
23.63
26.75
31.13
33.25
36.13
43.84
B
38.63
38.63
39.13
39.13
51.13
51.13
51.13
63.13
63.13
75.13
87.13
87.13
FAN DIMENSIONS
C
D
28.00
3.00
28.00
3.75
35.00
4.00
35.00
4.38
40.00
4.38
43.00
5.00
46.25
5.75
52.50
5.50
62.50
7.13
70.63
8.50
75.63
9.25
85.50
10.38
F
E. SQ.
20.00
20.00
24.00
26.00
30.00
30.00
34.00
40.00
46.00
52.00
58.00
64.00
2.00 TYP
CENTRIFUGAL
FAN ASSEMBLY
F
10.00
10.00
9.38
9.38
10.50
12.00
11.50
11.50
12.75
14.75
14.50
17.00
MAX HP
MAX
FRAME
1/3
1/2
1
1
2
2
2
5
5
7 1/2
7 1/2
15
56
56
145T
145T
145T
184T
184T
184T
215T
215T
215T
254T
CURB DIMS.
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
x
x
x
x
x
x
x
x
x
x
x
x
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
DAMPER SIZE
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
x
x
x
x
x
x
x
x
x
x
x
x
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
AVG. SHIP
WT. (LBS.)
110
113
126
131
168
185
203
307
363
488
555
690
D4135-1D
BCLP
C
B
A
D
E SQ., INSIDE
2.00 TYP
SIZE
100
120
140
160
180
210
240
300
360
420
480
540
A MAX.
19.88
20.63
20.88
21.25
24.50
25.13
29.38
29.13
37.75
39.13
43.38
51.50
FAN DIMENSIONS
B
C
D
38.50
28.00
12.19
38.50
28.00
12.19
40.00
32.00
11.00
40.00
32.00
11.00
46.00
36.00
11.00
46.00
38.00
12.50
49.50
42.00
11.69
58.00
46.00
12.88
63.75
54.75
14.25
70.50
60.00
15.25
76.50
66.00
15.25
85.75
73.75
17.75
E. SQ.
20.00
20.00
24.00
26.00
30.00
30.00
34.00
40.00
46.00
52.00
58.00
64.00
MAX HP
MAX
FRAME
1/3
1/2
1
1
2
2
2
5
5
7 1/2
7 1/2
15
56
56
145T
145T
145T
184T
184T
184T
215T
215T
215T
254T
CURB DIMS.
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
x
x
x
x
x
x
x
x
x
x
x
x
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
DAMPER SIZE
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
x
x
x
x
x
x
x
x
x
x
x
x
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
AVG. SHIP
WT. (LBS.)
87
89
95
107
128
138
155
255
290
380
428
560
D4135-3E
16
Twin City Fan Catalog 4135
CURB HINGE DETAIL
FAN CURB CAP
DCLH/DCLP
FAN BASE
HINGE
HINGE OFFSET
1/4-20 X 1/2” SCREW
ROOF CURB
(REF)
BCLH/BCLP
1/4-20 SCREW
.75
ROOF CURB
SIZE
LENGTH
060
070
080
085
090
095
100
120
100
120
140
160
180
210
240
15.00
15.00
15.00
15.00
15.00
15.00
15.00
19.00
19.00
19.00
23.50
24.50
29.00
29.00
34.00
DimensionalData
Curb Hinge
57962501
Notes:
1. Hinge requires curb to be 1.5" less than fan base.
2. When needed, holes can be added to base for attaching hinge.
3. Field is responsible for attaching curb hinge to roof curb and fan.
Backdraft Damper
FIG. A (NO EXTERNAL FLANGE)
8.50
WIDTH
4.50
MOTOR KIT
(OPTIONAL SEE NOTE 6)
1.16
DCLH/DCLP
0.75
HEIGHT
1.59
BCLH/BCLP
2.00
0.50 CONDUIT
KNOCKOUT
FIG. B (EXTERNAL FLANGE)
WIDTH
8.50
4.50
1.00
TYP
MOTOR KIT
(OPTIONAL SEE NOTE 6)
SIZE
FIG
HEIGHT
WIDTH
060
070
080
085
090
095
100
120
100
120
140
160
180
210
240
300
360
420
480
540
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
10.00
10.00
10.00
10.00
10.00
10.00
10.00
14.00
14.00
14.00
18.00
20.00
24.00
24.00
28.00
34.00
40.00
46.00
50.00
56.00
28-145J
HEIGHT
2.00
0.50 CONDUIT
KNOCKOUT
Notes:
1. Frame: 19-ga. galvanized steel.
2. Blades: 26-ga. mill finish aluminum.
3. Felt seal on leading edge of blades.
4. Tie rod attached to all blades.
5. Dampers individually packaged.
6. For motorized applications (opt.), 115/230, 460 and 575V motor pack available.
For 575V applications a transformer is required.
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17
Self-Flashing Roof Curb
A
A
A
1.50” WOOD
NAILER
A+8 SQ.
4.00
(TYP)
A SQ.
8.00
OR
12.00
OR
18.00
DAMPER SHELF
(STANDARD)
BACKDRAFT
DAMPER
(OPTIONAL)
BCLH/BCLP
060
070
080
085
090
095
100
120
100
120
140
160
180
210
240
300
360
420
480
540
A SQ.
8.00
OR
12.00
OR
18.00
INSULATION
(STANDARD)
A. SQ.
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
BACKDRAFT
DAMPER
(OPTIONAL)
DAMPER SHELF
(STANDARD)
SIZE
15.50
15.50
15.50
15.50
15.50
15.50
15.50
18.50
18.50
18.50
22.50
24.50
28.50
28.50
32.50
38.50
44.50
50.50
56.50
62.50
DCLH/DCLP
DCLH/DCLP
SIZE
0.19” POLYSTYRENE
GASKET
A+4 SQ.
2.00
(TYP)
INSULATION
(STANDARD)
RCPF
060
070
080
085
090
095
100
120
100
120
140
160
180
210
240
300
360
420
480
540
A. SQ.
16.50
16.50
16.50
16.50
16.50
16.50
16.50
19.50
19.50
19.50
23.50
25.50
29.50
29.50
33.50
39.50
45.50
51.50
57.50
63.50
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
16.50
16.50
16.50
16.50
16.50
16.50
16.50
19.50
19.50
19.50
23.50
25.50
29.50
29.50
33.50
39.50
45.50
51.50
57.50
63.50
RCSF-A
Notes:
1. Inside of curb is 3" less than Dimension 'A'.
2. Curbs are sized 1.50" less than fan base (cap) to allow .75" each
side for flashing material and clearance.
3. When using a motor operated damper in the curb, a 12" high (minimum) curb is required.
4. All dimensions +- 1/8".
5. Straight sided curbs have above dimensions, but are built like the
self-flashing curb.
18
A
8.00
OR
12.00
OR
18.00
8.00
OR
12.00
OR
18.00
BCLH/BCLP
DimensionalData
Canted Roof Curb
Notes:
1. Inside of curb is 3" less than Dimension 'A'.
2. Curbs are sized .50" less than fan base (cap) to allow .25" each side
for clearance.
3. When using a motor operated damper in the curb, a 12" high (minimum) curb is required.
4. All dimensions +- 1/8".
5. Straight sided curbs are built like above, but have canted 'A' dimension.
Twin City Fan Catalog 4135
Roof exhaust fans shall be of the belt driven centrifugal type, Model BCLH (Hooded) or BCLP (Penthouse) or of
the direct drive centrifugal type, Model DCLH (Hooded) or DCLP (Penthouse) as manufactured by Twin City Fan
& Blower, Minneapolis, Minnesota.
PERFORMANCE — Fans shall be tested in accordance with ANSI/AMCA Standard 210 (air performance) and
300 (sound performance) in an AMCA accredited laboratory.
Models BCLH, BCLP, DCLH and DCLP shall be UL 705 listed. Fans shall bear a permanently attached nameplate
displaying model and serial number of the unit for future identification.
CONSTRUCTION — Models BCLH and DCLH shall be constructed of hoods with interlocking galvanized steel
panels for durability and appearance. Hoods shall be hinged as standard to allow for ease of access to internal
components. Models BCLP and DCLP shall be constructed of a heavy-duty extruded aluminum louvered enclosure with mitered and welded corners. Louvered enclosures shall have an easily removable aluminum top cover
for ease of access to internal components. Units shall have a deep formed inlet venturi to prevent snow and rain
entry into the building. The fan base shall include prepunched mounting holes for ease of installation and shall
provide protection from weather. Fans shall bear a permanently attached nameplate displaying model and serial
number of the unit for future identification.
TypicalSpecifications
BCLH - BCLP - DCLH - DCLP
MOTOR AND DRIVE ASSEMBLY — Motor and drive assembly shall be mounted on vibration isolators to eliminate vibration and noise transmission into the ductwork.
WHEEL — Fan wheels shall be of the centrifugal backward inclined type, containing a matching inlet venturi for
optimum unit performance. Wheels shall be statically and dynamically balanced.
SHAFT (BCLH & BCLP Only) — Fan shafts shall be precision-ground and polished. Shafts shall have a first
critical speed of at least 125% of the fan's maximum operating speed.
BEARINGS (BCLH & BCLP Only) — Bearings shall be of the one-piece, pillow block type with relubricable zerk
fittings. Bearings shall be designed for air handling service with a minimum L-10 life in excess of 100,000 hours;
L-50 500,000 hours at the maximum cataloged operating speed. Bearing mounting plate shall have self-aligning
tabs for exact locating and alignment of bearings.
DRIVE (BCLH & BCLP Only) — Drive assembly shall be constructed of heavy-gauge galvanized steel. Drives shall
be sized for a minimum of 150% of driven horsepower. Machined, cast iron motor sheaves shall be adjustable
for final system balance.
MOTOR — Motors shall be heavy-duty ball bearing type, closely matched to the fan load. All single-phase ODP
motors shall contain thermal overload protection. All motors shall be UL and /or CSA recognized. Direct drive
motors for use with speed control shall provide good controllability without any objectionable noise. Motor adjustment on belt driven fans shall allow precise belt tensioning for optimum belt life and one-person adjustment
and servicing.
DISCONNECT SWITCH — A NEMA 1 disconnect switch shall be supplied with wiring leading from the motor
to the junction box (ODP and TEFC motors).
ACCESSORIES — When specified, accessories such as backdraft damper, roof curb, curb hinge, retaining chain,
security hasp, variable speed controller, NEMA-3R and NEMA-4 disconnect switch, 2-speed switch, firestat, aluminum bird screen, aluminum insect screen, and special coatings shall be provided by Twin City Fan & Blower
to maintain one source responsibility.
FACTORY RUN TEST — All fans prior to shipment shall be completely assembled and test run as a unit at
operating speed or maximum RPM allowed for the particular construction type. Each wheel shall be statically and
dynamically balanced in accordance with ANSI/AMCA 204-96 "Balance Quality and Vibration Levels for Fans" to
Fan Application Category BV-3, Balance Quality Grade G6.3. Balance readings shall be taken by electronic type
equipment in the axial, vertical, and horizontal directions. Records shall be maintained and a written copy shall
be available upon request.
GUARANTEE — The manufacturer shall guarantee the workmanship and materials for its roof mounted centrifugal
exhaust fans for at least one (1) year from startup or eighteen (18) months from shipment, whichever occurs first.
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19
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Centrifugal Fans | Utility Sets | Plenum & Plug Fans | Inline Centrifugal Fans
Mixed Flow Fans | Tubeaxial & Vaneaxial Fans | Propeller Wall Fans | Propeller Roof Ventilators
Centrifugal Roof & Wall Exhausters | Ceiling Ventilators | Gravity Ventilators | Duct Blowers
Radial Bladed Fans | Radial Tip Fans | High Efficiency Industrial Fans | Pressure Blowers
Laboratory Exhaust Fans | Filtered Supply Fans | Mancoolers | Fiberglass Fans | Custom Fans
TWIN CITY FAN & BLOWER | WWW.TCF.COM
TwinCity
City FanFan
Companies,
Ltd.
A Twin
Company
5959 Trenton Lane N | Minneapolis, MN 55442 | Phone: 763-551-7600 | Fax: 763-551-7601
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