INDUSTRIES
AMERICAN COOLAIR CORPORATION
Centrifugal Upblast
Power Roof Ventilators
TYPE UBCA - BELT DRIVE
TYPE UDCA - DIRECT DRIVE
TABLE OF CONTENTS
UBCA
BELT DRIVE FANS
UBCA
Sizes 06 to 44
Flow rates from
229 to 29,002 CFM
and 2” Static Pressure
UDCA
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Dimensional Data ............................…...........… 3
Fan Description ………….............................….. 4
Alternate Construction …............................….. 5
Performance - 06 ...........................................… 6
Performance - 08 .............................................. 7
Performance - 10 .............................................. 8
Performance - 12 ...........................................… 9
Performance - 13 .............................................. 10
Performance - 15 .............................................. 11
Performance - 16 ..........................................…. 12
Performance - 18 .............................................. 13
Performance - 20 .............................................. 14
Performance - 24 .............................................. 15
Performance - 30 .............................................. 16
Performance - 36 .............................................. 17
Performance - 44 .............................................. 18
DIRECT DRIVE FANS
UDCA
•
•
•
•
•
Dimensional Data .............................................
Fan Description ................................................
Performance - 12 ............……...........................
Performance - 13 ............……...........................
Performance - 15.............……...........................
3
19
20
20
21
Sizes 12 to 15
Flow rates from
619 to 3,032 CFM
and 1-1/2” Static Pressure
• Installation & Maintenance ........................….. 22
• Options & Accessories …...........................….. 23
• Specification Checklist ..............................….. Back Cover
ILG
2
STANDARD
FEATURES
UBCA and UDCA
Units
Weather-resistant
motor compartment
cover of spun
aluminum removes
easily for access to
motor and drive.
UBCA
UBCA
Safety disconnect switch is an available option.
Belt drive with adjustable motor pulley for flexibility to
match operating requirements.
Heavy duty pillow-block ball bearings with cast iron
housing are self-aligning and relubricable.
Hinged motor bracket with tensioning bolt(s) facilitates
maintenance of belt tension.
UL Listed for Standard 705 and 762.
UDCA
UDCA
Factory-wired disconnect device for standard motors.
Direct-drive assembly reduces maintenance and operating
costs.
Out-of-airstream
open motors are
isolated for
protection from
exhaust airstream.
Overlapping wheel
and deep-spun
venturi minimize
noise and air
turbulence,
increasing efficiency.
UL Listed for Standard 705 and 762.
UBCA and UDCA Ventilator,
Roof Curb, and Damper Dimensions
B DIA.
Built-in drain
removes grease and
water from fan
housing.
C
Aluminum
centrifugal wheel is
a non-overloading,
backward inclined
design with state-ofthe-art computerized
balance.
A SQ. I.D.
2”
K SQ.
H O.D.
1 5/8”
8” STD.
HEIGHT
Permanently
affixed wheel
balance weights
assure vibration-free
operation.
Wheel backplate
fins cool the motor
compartment,
extending motor life.
AMCA Seal assures
certified rating of air
and sound
performance.
D
1 5/8”
J I.D.
11/2” THICK
INSULATION
E SQ.
1”
G SQ.
Unit
UBCA 06-10
UDCA 12-15
UBCA 12-15
UBCA 16, 18
UBCA 20
UBCA 24
UBCA 30
UBCA 36
UBCA 44
Ventilator Dimensions
A
B
C
D
18 23 3/4
22
11 1/4
26 29 3/8 18 1/8 19 1/4
26 29 3/8 24 1/2 19 1/4
30 35 3/8 26 1/2 21 5/8
34 43 3/8 29 7/8 25 1/2
34 43 3/8 34 1/4 25 1/2
40 51 1/4 38 1/2 29 1/2
46 62 5/8 45 7/8 37 1/2
56
73
51 1/8
40
Roof Curb and Damper Dimensions
E
G
H
J
K
12 1/2 11 1/4 16 1/2 13 1/4 24 1/2
20 3/4 19 1/4 24 1/2 21 1/4 32 1/2
20 3/4 19 1/4 24 1/2 21 1/4 32 1/2
24 3/4 23 1/4 28 1/2 25 1/4 36 1/2
28 3/4 27 1/4 32 1/2 29 1/4 40 1/2
28 3/4 27 1/4 32 1/2 29 1/4 40 1/2
34 3/4 33 1/4 38 1/2 35 1/4 46 1/2
40 3/4 39 1/4 44 1/2 41 1/4 52 1/2
50 3/4 49 1/4 54 1/2 51 1/4 62 1/2
Dimensions in inches
3
ILG
UBCA
Belt Drive Centrifugal Upblast Power Roof Ventilators
Applications
The UBCA units are quiet, dependable upblast power roof
ventilators for the exhaust of grease-laden air from restaurant
range hoods, and general ventilation applications where
vertical discharge of exhaust air is required. Applications
include virtually all types of commercial and institutional
kitchens, such as restaurant and cafeteria, fast food, hospital,
hotel and motel, bakery, delicatessen, school and military.
UBCA units are specified where a roof-mounted location
is desired to eliminate interference with other equipment or
activities in the building. They permit the direct upward
venting of overheated air.
The UBCA is listed under UL classification YZHW for
Power Roof Ventilators for Restaurant Exhaust Systems.
When properly installed, the UBCA also meets the
requirements of National Fire Protection Association
Standard NFPA 96.
These units are particularly
recommended for economical and efficient range hood
ventilation where continuous operation under severe
conditions may cause other power roof ventilators to fail.
Construction
Construction of UBCA units features heavy gauge steel
structural support throughout consisting of steel base, motor
compartment disc and support pipes, to maintain support and
proper alignment of motor, wheel and drive during shipment,
installation and operation.
The spun aluminum motor
compartment cover provides protection from weather and
contaminated air and is easily removable for complete access
to motor and drive.
UBCA models feature a housing of durable spun
aluminum for optimum weather protection. The overlapping
deep-spun venturi minimizes air turbulence and increases
efficiency.
The aluminum centrifugal wheel is a non-overloading,
backward-inclined type, selected for low noise levels.
Backplate fins draw cool air through the motor compartment.
The wheels are computer balanced on state-of-the-art
equipment.
The UBCA wheel is secured to a machined aluminum hub
with a line bore, which eliminates the need for bushings.
Drive Mechanism
The belt driven UBCA utilizes a standard V-belt drive
design with a variable pitch cast iron motor pulley for
adjusting fan speed. Drive shaft is turned, ground and
polished. Motor support features a hinged motor bracket with
belt tensioning bolt(s) for easy field adjustment.
Motors
The standard motor for UBCA models is open
construction, located out of the airstream. Totally enclosed,
energy efficient, two-speed and explosion-proof motors may
also be available. Motor enclosure may affect UL Listing. All
motor brands are recognized and serviced nationwide.
Bearings
Heavy duty pillow-block ball bearings with cast iron
housing are self-aligning and relubricable.
ILG
4
UL705 - E39944
UL762 - MH9847
Type UBCA ventilators are
UL705 Listed by Underwriters
Laboratory Inc. to US and
Canadian safety standards.
Type UBCA ventilators are
UL762 Listed by Underwriters
Laboratory Inc. to US safety
standards.
American Coolair Corporation,
ILG Industries certifies that the
Type UBCA PRVs shown herein
are 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.
Guide Specifications
Upblast power roof ventilators shall be of the UBCA
centrifugal type as manufactured by ILG Industries of
American Coolair Corporation (individual models to be
listed in fan schedule). Units shall meet UL Standard 705
or 762 as required and shall bear the AMCA Certified
Ratings Seal for air and sound performance.
Bottom outer housing and venturi inlet shall be one
piece heavy gauge spun aluminum with built-in grease
drain.
Wheel and venturi shall overlap for efficient
operation. Motor compartment cover shall be heavy gauge
spun aluminum construction and easily removable for
access to motor and drive. Base, motor compartment disc
and support pipes shall be heavy gauge steel.
Drive mechanism shall incorporate a V-belt drive with
cast iron motor pulley. Drive shaft shall be turned, ground
and polished. The centrifugal wheel shall be heavy gauge
aluminum with backward-inclined, non-overloading blades
and be computer balanced.
Bearings shall be self-aligning and have fittings for
relubrication.
Motor shall be open drip-proof construction, NEMA
design B with minimum service factor of 1.15. Motor
compartment shall be cooled by a forced air ventilation
system. Adjustable motor pulley shall be provided to allow
for field adjustment and system balance. Motor shall be
mounted on an adjustable steel mounting bracket. Motor
shall be mounted with the shaft up to allow easy access to
the cast iron variable pitch drive pulley.
(Safety disconnect switch, epoxy coating, roof curb and
other accessories shall be listed in the fan schedule.)
Alternate Fan Constructions
Heat & Smoke Control
High Wind/Miami Dade
UBCA models, sizes 1230 may be specified for
Heat/Smoke Control
(UL Standard 793)
UBCA & UDCA models
may be specified for High
Wind Construction
x Heavy-duty galvanized steel
impeller and inlet
x Engineered and tested to
exhaust:
x High-velocity impact
tested
x Static air pressure force
tested
500° F air for 4 hours
400° C (752° F) air
for 2 hours
1,000° F air for 20
minutes
x Florida High Velocity
Hurricane Zone
compliant
x Miami-Dade County
Product Control
Complies with
Florida Building
Code High Velocity
Hurricane Zone
UL793
Type UBCA ventilators are
UL793
Listed
by
Underwriters Laboratory
Inc. to US and Canadian
safety standards.
Miami-Dade County
Product Control Approved
5
ILG
UBCA06 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.625
0.75
RPM Range
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
375
0.04 6.2
397
0.05 7.0
419
0.06 7.6
441
0.07 8.2
463
0.08 8.9
485
0.10 9.6
507
0.11 10.2
529
0.12 11.0
551
0.14 11.9
573
0.16 12.9
595
0.18 14.0
617
0.20 15.0
639
0.22 16.1
661
0.24 17.2
683
0.27 18.4
336
0.04 5.5
361
0.05 6.3
385
0.06 7.0
409
0.07 7.6
433
0.08 8.3
456
0.10 9.0
479
0.11 9.7
502
0.12 10.4
526
0.14 11.2
549
0.16 12.2
572
0.18 13.3
595
0.20 14.4
618
0.22 15.6
640
0.24 16.7
663
0.27 18.0
290
0.05 5.0
319
0.05 5.8
347
0.06 6.4
373
0.07 7.0
399
0.09 7.6
425
0.10 8.3
450
0.11 9.0
474
0.13 9.7
499
0.14 10.5
523
0.16 11.5
548
0.18 12.6
571
0.20 13.7
595
0.22 14.8
619
0.24 16.0
642
0.27 17.5
Motor HP
1/4 L
1/4 M
RPM
1/4 H
1217
255
0.06 5.3
294
0.07 5.9
328
0.08 6.5
360
0.09 7.1
389
0.10 7.8
417
0.11 8.5
444
0.13 9.2
470
0.14 9.9
496
0.16 10.8
522
0.18 11.9
547
0.20 12.9
572
0.22 14.0
596
0.25 15.3
621
0.27 16.8
1288
229
0.07 5.4
264
0.08 6.0
303
0.09 6.6
341
0.10 7.3
376
0.12 8.0
408
0.13 8.7
438
0.15 9.4
466
0.17 10.4
494
0.18 11.3
521
0.20 12.3
547
0.23 13.4
573
0.25 14.6
598
0.27 16.1
1360
1431
1503
1574
1646
359
0.13 8.2
396
0.15 9.0
430
0.17 9.8
462
0.19 10.8
491
0.21 11.8
520
0.23 12.9
547
0.25 14.0
574
0.28 15.5
1717
1789
1861
420
0.19 10.3
455
0.21 11.3
488
0.23 12.4
518
440
0.26 13.4 0.26 12.5
547
479
0.28 15.0 0.29 14.0
1933
2004
2076
2147
2219
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
6
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UBCA08 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.625
0.75
RPM Range
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
519
0.05 6.3
549
0.06 7.1
580
0.07 7.7
610
0.08 8.4
641
0.09 8.9
671
0.10 9.6
702
0.12 10.3
732
0.13 11.0
763
0.15 11.8
794
0.17 12.6
824
0.19 13.6
855
0.21 14.6
885
0.23 15.6
916
0.26 16.8
946
0.28 18.3
476
0.05 5.8
508
0.06 6.6
541
0.07 7.2
574
0.08 7.8
606
0.09 8.5
638
0.10 9.1
670
0.12 9.8
702
0.14 10.5
734
0.15 11.3
766
0.17 12.2
797
0.19 13.1
829
0.21 14.0
860
0.24 15.1
891
0.26 16.3
923
0.29 17.7
428
0.05 5.5
465
0.06 6.3
501
0.07 6.9
536
0.08 7.5
570
0.10 8.2
604
0.11 8.7
638
0.12 9.4
671
0.14 10.1
704
0.16 10.9
737
0.18 11.8
770
0.20 12.7
802
0.22 13.6
835
0.24 14.7
867
0.27 15.8
899
0.29 17.2
362
0.06 5.2
407
0.07 6.1
452
0.08 6.7
492
0.09 7.2
531
0.10 7.9
568
0.12 8.5
604
0.13 9.1
639
0.15 9.8
673
0.16 10.6
708
0.18 11.4
742
0.20 12.3
775
0.23 13.3
809
0.25 14.3
842
0.27 15.4
875
0.30 16.8
RPM
Motor HP
1/4 L
1/4 M
1/4 H
1217
339
0.07 5.8
390
0.08 6.4
434
0.09 7.0
480
0.11 7.7
524
0.12 8.3
565
0.14 8.9
604
0.15 9.6
641
0.17 10.4
677
0.19 11.2
713
0.21 12.1
748
0.23 13.0
783
0.26 14.0
817
0.28 15.1
851
0.31 16.5
1288
1360
372
0.09 6.7
424
0.11 7.3
469
0.12 8.0
515
0.14 8.6
559
0.16 9.3
603
0.18 10.1
643
0.20 11.0
682
0.22 11.9
719
0.24 12.8
755
0.27 13.8
790
0.29 14.9
826
0.32 16.3
1431
1503
1574
1646
510
0.16 9.0
555
0.18 9.9
600
0.20 10.7
644
0.22 11.7
685
0.25 12.6
725
0.27 13.6
762
0.30 14.6
799
0.33 16.0
1717
1789
1861
1933
602
0.25 12.0
647
0.28 13.1
692
0.31 14.2
736
659
0.34 15.6 0.34 15.0
2004
2076
2147
2219
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
7
UBCA10 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.625
0.75
RPM Range
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
697
0.05 7.2
738
0.07 8.0
779
0.08 8.7
820
0.09 9.4
861
0.10 10.1
902
0.12 10.8
943
0.14 11.6
984
0.15 12.3
1025
0.17 13.2
1066
0.20 14.2
1108
0.22 15.3
1148
0.25 16.5
1190
0.27 17.8
640
0.06 6.6
684
0.07 7.4
728
0.08 8.1
772
0.09 8.8
816
0.11 9.5
858
0.12 10.2
902
0.14 11.0
944
0.16 11.8
987
0.18 12.7
1030
0.20 13.6
1073
0.23 14.7
1115
0.25 16.0
1157
0.28 17.3
572
0.06 6.2
622
0.07 7.0
671
0.09 7.7
718
0.10 8.4
765
0.11 9.1
811
0.13 9.8
857
0.15 10.6
902
0.17 11.3
947
0.19 12.3
992
0.21 13.2
1036
0.23 14.3
1079
0.26 15.5
1123
0.29 16.8
498
0.07 5.6
553
0.08 6.5
607
0.09 7.3
659
0.10 8.0
710
0.12 8.7
759
0.14 9.4
808
0.15 10.2
856
0.17 11.0
903
0.19 11.9
950
0.22 12.9
997
0.24 13.9
1042
0.27 15.0
1088
0.30 16.4
Motor HP
1/4 L
1/4 M
RPM
1/4 H
1217
1288
1360
595
0.11 7.5
650
0.12 8.3
703
0.14 9.1
756
0.16 9.8
807
0.18 10.6
857
0.20 11.6
906
0.22 12.6
955
0.25 13.5
1003
0.27 14.7
1050
0.30 16.0
1431
1503
645
0.14 8.6
701
0.16 9.4
755
0.18 10.2
808
0.20 11.2
860
0.23 12.2
911
0.25 13.2
961
0.28 14.3
1010
0.31 15.7
1574
1646
1717
757
0.21 10.8
812
0.23 11.8
865
0.26 12.9
917
826
0.28 14.0 0.29 13.1
969
882
0.31 15.3 0.32 14.5
1789
1861
1933
2004
2076
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
8
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UBCA12 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
2.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1222
0.10 6.7
1275
0.11 7.4
1329
0.12 8.0
1381
0.14 8.7
1435
0.15 9.5
1487
0.17 10.2
1541
0.19 11.0
1594
0.21 11.9
1647
0.23 12.7
1700
0.26 13.6
1754
0.28 14.4
1806
0.31 15.0
1860
0.34 15.7
1912
0.37 16.5
1966
0 40 17.3
0.40
17 3
2020
0.43 18.1
2072
0.46 18.7
2126
0.50 19.5
2178
0.54 20
2232
0.58 21
2285
0.62 22
2338
0.67 23
1121
0.11 6.6
1178
0.12 7.2
1235
0.13 7.9
1290
0.15 8.6
1347
0.17 9.4
1402
0.19 10.1
1458
0.21 10.9
1515
0.23 11.8
1569
0.25 12.6
1625
0.27 13.5
1681
0.30 14.3
1735
0.32 14.9
1791
0.35 15.6
1845
0.38 16.3
1900
0.42
0 42 17.1
17 1
1955
0.45 17.9
2009
0.48 18.5
2064
0.52 19.3
2118
0.56 20
2173
0.60 21
2228
0.65 22
2282
0.69 23
1024
0.11 6.2
1086
0.13 6.9
1147
0.14 7.5
1206
0.16 8.2
1266
0.18 8.9
1324
0.20 9.7
1382
0.22 10.5
1441
0.24 11.4
1498
0.26 12.3
1555
0.29 13.2
1613
0.31 13.9
1669
0.34 14.6
1726
0.37 15.4
1781
0.40 16.1
1838
0.43
0 43 16.9
16 9
1895
0.47 17.7
1950
0.50 18.3
2006
0.54 19.1
2061
0.58 20
2117
0.62 21
2174
0.67 22
2228
0.71 23
915
0.12 5.8
985
0.13 6.5
1052
0.15 7.1
1117
0.17 7.9
1181
0.18 8.6
1243
0.20 9.4
1306
0.23 10.1
1367
0.25 11.0
1427
0.27 11.9
1487
0.30 12.7
1547
0.32 13.5
1605
0.35 14.2
1663
0.38 15.0
1721
0.41 15.8
1779
0.45
0 45 16.6
16 6
1837
0.48 17.4
1893
0.52 18.1
1951
0.56 18.8
2007
0.60 19.7
2064
0.64 21
2121
0.68 22
2177
0.73 23
781
0.12 5.6
867
0.14 6.2
945
0.15 6.8
1017
0.17 7.4
1088
0.19 8.2
1156
0.21 8.9
1223
0.23 9.7
1289
0.26 10.6
1352
0.28 11.5
1416
0.31 12.3
1479
0.33 13.1
1539
0.36 13.8
1600
0.39 14.7
1660
0.42 15.5
1720
0.46
0 46 16.4
16 4
1780
0.49 17.1
1838
0.53 17.8
1896
0.57 18.6
1954
0.61 19.4
2012
0.65 20
2070
0.70 21
2127
0.75 22
RPM Range
Motor HP
1/4 L 1/4 H
1/3
1/2
RPM
3/4
1072
1119
1166
1212
845
0.19 7.7
942
0.22 8.4
1029
0.24 9.0
1110
0.27 9.8
1185
0.29 10.6
1258
0.32 11.5
1329
0.35 12.2
1396
0.38 13.0
1464
0.41 14.0
1529
0.44 14.8
1595
0.48
0 48 15.7
15 7
1659
0.52 16.5
1721
0.55 17.2
1784
0.59 18.0
1845
0.64 18.7
1907
0.68 19.6
1968
0.73 21
2028
0.77 22
1259
1305
1352
1399
955
0.29 10.3
1057
0.32 11.1
1148
0.35 11.7
1230
0.39 12.4
1309
0.42 13.3
1383
0.46 14.2
1456
0.50
0 50 15.0
15 0
1527
0.53 15.9
1594
0.57 16.6
1663
0.61 17.4
1728
0.66 18.1
1794
0.70 18.9
1859
0.75 19.9
1922
0.80 21
1445
1492
1539
990
0.37 12.1
1105
0.42 13.0
1202
0.46 13.8
1292
0.50
0 50 14.6
14 6
1375
0.54 15.3
1453
0.59 16.0
1528
0.63 16.8
1600
0.68 17.5
1672
0.72 18.3
1742
0.77 19.1
1810
0.82 20
1585
1632
1678
1053
0.48
0 48 14.2
14 2
1175
0.53 15.1
1276
0.58 15.8
1369
0.63 16.5
1454
0.68 17.2
1535
0.73 17.9
1613
1253
0.79 18.6 0.75 18.1
1687
1368
0.84 19.5 0.82 19.0
1725
1772
1818
1865
1911
1958
2005
2051
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
9
UBCA13 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
2.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1617
0.16 10.5
1685
0.18 11.5
1752
0.20 12.4
1820
0.23 13.6
1886
0.25 14.4
1954
0.28 15.2
2022
0.31 15.9
2089
0.34 16.6
2157
0.38 17.5
2225
0.41 18.3
2291
0.45 19.1
2359
0.49 20
2425
0.54 21
2493
0.58 22
2561
0 63 23
0.63
1524
0.17 10.1
1596
0.19 11.1
1665
0.22 12.1
1736
0.24 13.3
1805
0.27 14.1
1876
0.30 14.9
1946
0.33 15.6
2015
0.36 16.4
2085
0.39 17.2
2155
0.43 18.0
2224
0.47 18.8
2293
0.51 19.7
2362
0.56 21
2431
0.60 21
2501
0.65
0 65 22
1429
0.18 9.8
1506
0.20 10.8
1580
0.23 11.8
1655
0.25 13.0
1728
0.28 13.8
1801
0.31 14.5
1874
0.34 15.3
1945
0.37 16.1
2017
0.41 16.9
2089
0.45 17.7
2159
0.49 18.5
2231
0.53 19.4
2301
0.57 20
2372
0.62 21
2442
0.67
0 67 22
1335
0.19 9.4
1413
0.22 10.4
1489
0.24 11.4
1567
0.27 12.6
1643
0.29 13.4
1720
0.32 14.2
1797
0.35 15.0
1872
0.39 15.7
1947
0.42 16.5
2022
0.46 17.4
2095
0.50 18.2
2169
0.54 19.1
2240
0.59 19.9
2313
0.64 21
2386
0.69
0 69 22
1239
0.20 9.0
1324
0.23 10.0
1405
0.25 11.0
1485
0.28 12.2
1563
0.31 13.0
1641
0.34 13.8
1719
0.37 14.6
1795
0.40 15.4
1872
0.44 16.2
1950
0.48 17.0
2025
0.52 17.9
2102
0.56 18.8
2176
0.61 19.7
2252
0.65 21
2327
0.71
0 71 21
953
0.20 8.4
1083
0.23 9.4
1191
0.26 10.4
1293
0.29 11.5
1389
0.32 12.3
1482
0.36 13.1
1570
0.39 13.9
1652
0.43 14.7
1734
0.47 15.6
1814
0.51 16.4
1892
0.55 17.3
1970
0.59 18.2
2047
0.64 19.1
2124
0.69 20
2202
0.74
0 74 21
RPM Range
Motor HP
1/4
1/3
1/2
RPM
3/4
1119
1166
1212
1259
1140
0.32 11.7
1264
0.36 12.5
1374
0.40 13.3
1475
0.44 14.2
1573
0.48 15.0
1668
0.53 15.8
1756
0.57 16.7
1843
0.62 17.6
1924
0.67 18.5
2006
0.72 19.5
2086
0.77
0 77 20
1305
1352
1399
1232
0.43 13.7
1364
0.48 14.6
1479
0.53 15.4
1583
0.58 16.3
1684
0.63 17.2
1779
0.68 18.1
1873
0.74 19.0
1963
0.80
0 80 19.9
19 9
1445
1492
1539
1356
0.57 15.8
1488
0.63 16.7
1602
0.68 17.6
1709
0.74 18.6
1811
0.81
0 81 19.5
19 5
1585
1632
1678
1725
1772
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
10
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UBCA15 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
2.00
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
2188
0.27 10.1
2280
0.31 10.8
2370
0.35 11.6
2462
0.39 12.5
2552
0.44 13.4
2644
0.48 14.3
2736
0.54 15.4
2826
0.59 16.3
2917
0.65 17.4
3009
0.72 18.4
3099
0.78 19.5
3191
0.85 21
3281
0.93 22
2101
0.29 9.4
2197
0.33 10.2
2291
0.37 10.9
2386
0.41 11.8
2479
0.46 12.7
2574
0.50 13.6
2668
0.56 14.5
2761
0.61 15.6
2854
0.67 16.6
2948
0.74 17.6
3040
0.80 18.7
3134
0.88 19.8
3225
0.95 21
1967
0.31 9.5
2077
0.35 10.3
2183
0.39 11.0
2288
0.43 11.8
2388
0.48 12.6
2489
0.53 13.5
2589
0.58 14.3
2686
0.63 15.3
2784
0.70 16.3
2881
0.76 17.3
2976
0.83 18.3
3072
0.90 19.3
3166
0.98 20
1835
0.32 9.2
1939
0.36 10.1
2041
0.40 10.9
2148
0.45 11.8
2255
0.50 12.7
2365
0.55 13.6
2476
0.60 14.5
2583
0.66 15.4
2690
0.72 16.4
2795
0.78 17.3
2896
0.85 18.3
2998
0.93 19.3
3096
1.00 20
1722
0.33 8.5
1835
0.37 9.3
1940
0.42 10.3
2045
0.46 11.3
2147
0.51 12.3
2251
0.56 13.4
2356
0.62 14.4
2460
0.68 15.5
2569
0.74 16.5
2679
0.81 17.5
2788
0.88 18.4
2898
0.95 19.4
3004
1.03 21
1395
0.33 8.2
1533
0.38 9.1
1667
0.42 9.8
1804
0.48 10.5
1937
0.53 11.2
2062
0.59 12.1
2179
0.65 13.2
2286
0.71 14.3
2393
0.78 15.6
2498
0.85 16.9
2600
0.92 18.1
2704
1.00 19.3
2806
1.08 21
RPM Range
Motor HP
1/3
1/2
3/4
RPM
1
1119
1166
1361
0.42 9.4
1512
0.47 10.0
1649
0.53 11.1
1787
0.59 12.3
1923
0.65 13.3
2058
0.72 14.0
2194
0.79 14.7
2323
0.87 15.7
2442
0.94 16.8
2555
1.03 18.1
2662
1.11 19.4
1212
1259
1305
1511
0.59 11.8
1664
0.65 12.4
1802
0.72 13.7
1940
0.79 15.0
2077
0.87 16.2
2211
0.95 17.0
2349
1.04 17.7
2481
1.13 18.5
1352
1399
1514
0.70 14.0
1693
0.79 14.2
1842
0.87 15.2
1981
0.95 16.6
2119
1.03 17.9
2252
1790
1.12 19.1 1.11 18.7
1445
1492
1539
1585
1632
1678
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels
levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
11
UBCA16 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
2628
0.28 10.3
2731
0.32 11.0
2837
0.36 11.7
2943
0.40 12.5
3046
0.44 13.3
3152
0.49 14.2
3258
0.54 15.1
3361
0.59 16.1
3467
0.65 17.1
3573
0.71 18.0
3679
0.78 19.0
3782
0.84 20
3888
0.92 21
4051
1.04 23
4157
1 12 24
1.12
4263
1.21 25
4372
1.30 26
4478
1.40 27
2432
0.30 9.7
2541
0.34 10.3
2653
0.38 11.1
2765
0.42 11.9
2873
0.47 12.6
2984
0.52 13.4
3095
0.57 14.3
3202
0.62 15.2
3313
0.68 16.2
3423
0.74 17.2
3533
0.81 18.2
3640
0.88 19.2
3749
0.95 20
3918
1.07 22
4027
1.16
1 16 23
4136
1.25 24
4247
1.34 25
4356
1.44 26
2281
0.32 9.3
2391
0.35 10.0
2503
0.39 10.8
2616
0.44 11.5
2726
0.48 12.4
2839
0.53 13.2
2952
0.59 14.1
3061
0.64 14.9
3174
0.70 15.9
3287
0.77 16.9
3399
0.83 17.8
3508
0.90 18.8
3620
0.98 19.9
3793
1.10 22
3904
1.19
1 19 23
4016
1.28 24
4130
1.38 25
4241
1.48 26
2156
0.33 9.3
2270
0.36 10.0
2386
0.41 10.8
2500
0.45 11.6
2610
0.50 12.5
2723
0.55 13.3
2836
0.60 14.2
2945
0.66 15.0
3058
0.72 16.0
3170
0.79 16.9
3283
0.85 17.8
3393
0.93 18.7
3506
1.00 19.7
3680
1.13 21
3793
1.21
1 21 22
3905
1.31 24
4021
1.41 25
4133
1.51 25
2009
0.34 8.9
2138
0.37 9.7
2264
0.42 10.6
2387
0.46 11.5
2503
0.51 12.4
2620
0.56 13.3
2735
0.62 14.2
2846
0.67 15.1
2960
0.73 16.1
3073
0.80 17.0
3186
0.87 17.9
3295
0.94 18.9
3408
1.02 19.9
3581
1.15 21
3694
1.24
1 24 23
3807
1.33 24
3923
1.43 24
4036
1.53 25
1407
0.30 7.7
1678
0.36 8.6
1895
0.42 9.5
2075
0.48 10.4
2229
0.53 11.5
2374
0.58 12.6
2511
0.64 13.6
2638
0.70 14.7
2764
0.76 15.8
2887
0.83 16.9
3007
0.90 17.9
3122
0.97 18.9
3238
1.05 20
3416
1.18 22
3530
1.27
1 27 23
3643
1.36 24
3759
1.47 25
3872
1.57 26
RPM Range
Motor HP
2.00
1/3
1/2
3/4
1
RPM
1 1/2
918
954
991
1341
0.39 9.4
1657
0.48 10.3
1933
0.56 11.4
2154
0.64 12.4
2335
0.71 13.5
2500
0.78 14.7
2651
0.85 16.0
2793
0.92 17.2
2924
1.00 18.3
3054
1.08 19.5
3247
1.21 21
3369
1.30
1 30 23
3489
1.40 24
3610
1.50 25
3727
1.60 26
1028
1064
1101
1391
0.51 11.5
1721
0.62 12.4
2021
0.73 13.5
2270
0.83 14.6
2476
0.92 15.9
2650
1.01 17.2
2813
1.10 18.5
3041
1.24 21
3179
1.33
1 33 22
3312
1.43 23
3445
1.53 24
3570
1.64 25
1138
1174
1211
1537
0.67 13.8
1877
0.81 14.8
2172
0.94 15.9
2430
1.06 17.2
2749
1.23 19.3
2926
1.34
1 34 21
3087
1.45 22
3241
1.56 23
3384
1.67 25
1248
1285
1321
1358
1508
0.90 17.3
1880
1.09
1 09 18.4
18 4
2212
1.27 19.7
2521
1.45 21
2780
1.61 22
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
12
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
1415
1452
1489
1527
1564
UBCA18 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
3344
0.43 10.6
3476
0.48 11.3
3610
0.54 12.1
3745
0.60 13.1
3876
0.67 14.0
4011
0.74 15.0
4146
0.82 16.0
4277
0.90 17.0
4412
0.99 18.0
4612
1.13 19.7
4747
1.23 21
4882
1.33 22
5020
1.45 23
5155
1.57 24
5290
1 70 25
1.70
5425
1.83 26
5563
1.98 27
3153
0.45 10.1
3296
0.50 10.8
3441
0.56 11.6
3585
0.63 12.4
3723
0.70 13.4
3865
0.77 14.3
4006
0.85 15.3
4143
0.93 16.4
4283
1.02 17.4
4490
1.16 19.0
4629
1.26 20
4768
1.37 21
4910
1.49 23
5048
1.61 23
5186
1.74
1 74 24
5324
1.87 25
5465
2.02 26
2924
0.46 9.5
3067
0.51 10.2
3214
0.57 11.0
3363
0.64 12.0
3509
0.71 12.9
3660
0.78 13.8
3812
0.86 14.8
3959
0.95 15.9
4109
1.04 16.9
4331
1.18 18.5
4479
1.29 19.7
4625
1.40 21
4774
1.52 22
4919
1.64 23
5062
1.77
1 77 24
5205
1.91 25
5351
2.05 26
2757
0.47 9.4
2906
0.52 10.2
3055
0.58 11.0
3202
0.65 11.8
3344
0.72 12.7
3490
0.79 13.6
3636
0.87 14.5
3778
0.96 15.6
3925
1.05 16.6
4147
1.19 18.1
4297
1.30 19.2
4448
1.41 20
4604
1.54 22
4755
1.66 22
4906
1.79
1 79 23
5056
1.93 24
5210
2.08 25
2568
0.48 9.2
2725
0.54 10.1
2887
0.60 10.9
3047
0.66 11.9
3200
0.73 12.8
3353
0.80 13.6
3503
0.88 14.6
3646
0.97 15.5
3792
1.06 16.5
4009
1.20 17.9
4155
1.31 19.0
4301
1.42 20
4452
1.55 21
4600
1.67 22
4749
1.80
1 80 23
4899
1.94 24
5054
2.09 25
2061
0.46 8.4
2319
0.53 9.3
2533
0.60 10.3
2715
0.67 11.3
2879
0.75 12.3
3043
0.83 13.3
3204
0.92 14.4
3362
1.00 15.5
3524
1.09 16.6
3762
1.24 18.1
3919
1.34 19.2
4072
1.45 20
4226
1.57 21
4375
1.70 22
4522
1.83
1 83 23
4668
1.97 24
4817
2.12 24
RPM Range
Motor HP
2.00
1/2
3/4
1
1 1/2
RPM
2
918
954
1802
0.53 9.1
2127
0.62 10.2
2410
0.72 11.4
2674
0.81 12.6
2892
0.91 13.7
3074
1.00 14.9
3246
1.10 16.0
3490
1.26 17.7
3652
1.38 18.9
3814
1.49 20
3980
1.62 21
4142
1.74 22
4302
1.87
1 87 23
4460
2.01 24
4618
2.15 25
991
1028
1064
1948
0.72 11.2
2284
0.84 12.5
2575
0.95 13.8
2853
1.07 15.2
3198
1.25 17.1
3390
1.37 18.3
3565
1.49 19.6
3737
1.63 21
3900
1.76 22
4062
1.90
1 90 23
4223
2.05 24
4390
2.20 25
1101
1138
1781
0.80 12.5
2181
0.96 13.6
2662
1.17 15.9
2951
1.31 17.3
3219
1.46 18.8
3454
1.60 20
3652
1.75 21
3832
1.90
1 90 22
4002
2.05 23
4171
2.22 24
1174
1211
1266
1303
1845
1.13 16.4
2314
1.37 17.4
2674
1.57 18.7
2993
1.76
1 76 20
3288
1.94 21
3574
2.14 23
1340
1378
1415
1452
1489
1527
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
13
UBCA20 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
3857
0.41 10.8
4037
0.47 11.6
4222
0.53 12.5
4407
0.61 13.5
4593
0.69 14.5
4773
0.77 15.6
4958
0.86 16.7
5143
0.96 17.8
5403
1.12 19.4
5588
1.24 20
5773
1.36 22
5958
1.50 23
6148
1.65 24
6333
1.80 25
6519
1 96 26
1.96
3620
0.43 9.8
3812
0.49 10.7
4008
0.56 11.5
4203
0.64 12.5
4397
0.72 13.4
4585
0.80 14.4
4778
0.90 15.6
4970
1.00 16.7
5239
1.16 18.3
5430
1.28 19.5
5620
1.41 21
5810
1.54 22
6005
1.69 23
6194
1.85 24
6384
2.01
2 01 25
3383
0.45 9.4
3580
0.51 10.2
3783
0.58 11.1
3986
0.66 12.0
4189
0.74 12.9
4385
0.83 14.0
4586
0.92 15.1
4785
1.03 16.2
5064
1.19 17.8
5262
1.31 18.9
5459
1.44 20
5655
1.58 21
5855
1.73 23
6049
1.89 24
6243
2.05
2 05 24
3189
0.46 9.1
3390
0.52 10.0
3594
0.59 11.0
3797
0.67 12.1
3999
0.76 13.1
4196
0.84 14.1
4399
0.94 15.1
4603
1.05 16.2
4888
1.21 17.7
5090
1.33 18.7
5292
1.47 19.8
5493
1.61 21
5699
1.76 22
5898
1.92 23
6097
2.09
2 09 24
2931
0.47 8.6
3185
0.54 9.6
3415
0.61 10.7
3630
0.69 11.9
3838
0.77 13.1
4037
0.86 14.2
4240
0.96 15.3
4443
1.07 16.4
4727
1.23 17.8
4930
1.35 18.9
5133
1.49 20
5336
1.63 21
5545
1.78 22
5748
1.94 23
5950
2.11
2 11 24
2092
0.43 7.3
2485
0.52 8.6
2801
0.61 10.1
3091
0.70 11.4
3383
0.80 12.3
3662
0.89 13.4
3918
0.99 14.7
4149
1.10 15.9
4451
1.27 17.8
4660
1.39 19.0
4865
1.53 20
5069
1.67 22
5277
1.83 23
5479
1.99 24
5682
2.16
2 16 25
RPM Range
Motor HP
2.00
1/2
3/4
1
1 1/2
RPM
2
771
807
844
2295
0.63 9.8
2733
0.76 11.1
3066
0.88 12.8
3365
0.99 14.3
3653
1.11 15.5
4065
1.30 17.0
4339
1.43 18.2
4586
1.57 19.6
4814
1.71 21
5036
1.87 23
5247
2.04 24
5454
2.21
2 21 25
881
918
954
2645
0.91 12.6
3073
1.07 14.2
3539
1.28 16.6
3833
1.42 17.9
4121
1.58 19.2
4415
1.74 20
4708
1.91 22
4969
2.08 23
5209
2.25
2 25 24
991
1028
2824
1.16 15.1
3270
1.35 16.6
3631
1.54 18.4
3941
1.72 20
4240
1.90 21
4529
2.08 22
4823
2.27
2 27 23
1080
1117
1154
2338
1.36 18.8
3006
1.66 19.4
3503
1.92 21
3914
2.18
2 18 22
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
14
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
1191
1229
1266
1303
UBCA24 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
4154
0.30 7.7
4440
0.36 8.8
4749
0.44 10.0
5028
0.53 11.1
5277
0.61 12.3
5526
0.70 13.5
5805
0.81 14.8
6068
0.92 16.1
6340
1.05 17.4
6634
1.21 18.9
6898
1.36 20
7192
1.54 22
7501
1.75 23
7825
1.98 25
8254
2.33 28
8669
2.69 30
9099
3.12 33
3809
0.31 7.2
4122
0.38 8.3
4456
0.47 9.6
4755
0.56 10.8
5019
0.64 12.0
5282
0.74 13.2
5575
0.85 14.6
5850
0.97 15.9
6132
1.10 17.3
6437
1.26 18.7
6709
1.41 20
7012
1.60 22
7329
1.81 24
7661
2.05 25
8100
2.40 28
8522
2.77 31
8959
3.20 34
3351
0.32 6.7
3725
0.39 7.8
4121
0.48 9.0
4449
0.57 10.2
4729
0.65 11.5
5005
0.74 12.7
5311
0.86 14.2
5600
0.98 15.5
5895
1.12 16.9
6213
1.28 18.4
6496
1.44 19.9
6810
1.63 22
7138
1.84 24
7481
2.09 25
7931
2.45 28
8364
2.83 31
8810
3.26 34
2712
0.31 6.4
3243
0.39 7.4
3675
0.48 8.5
4030
0.57 9.7
4350
0.65 10.8
4678
0.75 12.1
5032
0.87 13.6
5345
1.00 15.0
5654
1.13 16.4
5982
1.29 18.0
6273
1.45 19.4
6595
1.63 21
6933
1.85 23
7285
2.10 25
7749
2.46 28
8193
2.85 31
8650
3.29 35
RPM Range
Motor HP
2.00
1/3
1/2
3/4
1
1 1/2
RPM
2
3
551
589
3023
0.47 8.3
3584
0.57 9.3
3966
0.66 10.4
4297
0.76 11.6
4651
0.87 13.0
4990
1.00 14.4
5348
1.14 15.8
5725
1.31 17.4
6044
1.47 18.8
6383
1.65 21
6730
1.87 23
7089
2.11 25
7561
2.47 28
8014
2.86 31
8480
3.30 34
630
667
700
733
3674
0.85 12.4
4230
0.99 13.7
4679
1.14 15.0
5089
1.31 16.5
5429
1.47 17.7
5801
1.66 19.2
6201
1.88 21
6629
2.14 23
7172
2.51 26
7660
2.90 29
8145
3.34 33
770
805
841
4073
1.25 16.0
4672
1.45 17.2
5202
1.67 18.4
5662
1.90 19.9
6091
2.15 22
6636
2.51 24
7171
2.90 27
7738
3.37 30
880
915
3951
1.54 18.1
4760
1.83 19.5
5443
2.13 21
6144
5303
2.53 23 2.45 23
6707
6138
2.92 26 2.91 25
7255
6811
5004
3.36 28 3.38 28 3.12 27
954
995
1038
1095
1150
1207
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
15
UBCA30 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
5019
0.23 4.6
5530
0.31 5.6
6097
0.41 7.1
6526
0.51 8.3
7217
0.69 10.5
7687
0.83 12.2
8212
1.01 14.0
8572
1.15 14.9
8959
1.31 15.9
9305
1.47 16.8
9747
1.69 18.0
10231
1.95 19.4
10646
2.20 21
11102
2.50 22
11475
2.76 23
11849
3.04 24
12443
3.52 26
12996
4.01 29
13618
4.61 32
14199
5.23 35
4322
0.24 4.2
4899
0.32 5.2
5525
0.43 6.6
5992
0.52 7.7
6735
0.71 9.9
7234
0.85 11.6
7789
1.03 13.5
8166
1.17 14.3
8571
1.34 15.4
8931
1.50 16.2
9391
1.72 17.4
9891
1.98 18.8
10319
2.23 20
10789
2.53 21
11173
2.79 23
11555
3.07 24
12164
3.55 26
12729
4.04 28
13363
4.65 31
13954
5.26 34
3239
0.24 3.5
4177
0.33 4.5
4928
0.44 6.0
5447
0.54 7.2
6248
0.72 9.3
6779
0.87 11.0
7363
1.05 12.9
7758
1.19 13.9
8181
1.36 14.9
8556
1.52 15.8
9033
1.74 16.9
9550
2.01 18.4
9992
2.26 19.5
10475
2.56 21
10869
2.82 22
11262
3.10 23
11884
3.58 26
12461
4.08 28
13108
4.68 31
13710
5.30 34
RPM Range
Motor HP
2.00
1/2
3/4
1
1 1/2
2
RPM
3
363
400
3818
0.43 5.4
4736
0.55 6.7
5719
0.74 8.8
6305
0.88 10.5
6930
1.07 12.5
7347
1.21 13.5
7789
1.38 14.5
8179
1.54 15.4
8673
1.77 16.6
9208
2.03 18.0
9663
2.29 19.2
10160
2.58 20
10565
2.85 22
10967
3.13 23
11604
3.62 25
12193
4.11 27
12852
4.72 30
13464
5.34 33
441
472
4876
0.73 8.3
5709
0.89 10.1
6446
1.09 12.1
6906
1.23 13.1
7380
1.40 14.2
7793
1.56 15.1
8309
1.79 16.3
8864
2.06 17.7
9334
2.31 18.9
9844
2.61 20
10259
2.88 21
10671
3.16 23
11323
3.65 25
11924
4.14 27
12595
4.75 30
13218
5.38 33
522
556
594
620
6220
1.40 13.4
6821
1.58 14.5
7474
1.82 15.8
8119
2.10 17.3
8641
2.35 18.6
9195
2.66 19.9
9638
2.93 21
10074
3.21 22
10757
3.70 24
11384
4.20 26
12081
4.82 29
12725
5.45 32
648
673
705
6951
2.08 16.5
7717
2.37 18.0
8415
2.69 19.5
8932
2.97 21
9420
3.26 22
10162
3.76 24
10828
4.26 26
11559
4.88 29
12228
5.51 31
740
770
803
7847
2.94 20
8538
3.26 22
9452
3.79 24
10207
4.30 26
10999
4.93 28
11710
5.57 31
830
857
8317
3.73 23
9381
4.31 25
10336
7170
4.96 28 4.47 25
11131
9172
5.61 30 5.49 29
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
16
5
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
900
940
985
1027
UBCA36 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
6843
0.28 4.3
7562
0.38 5.4
8207
0.48 6.5
8926
0.62 7.8
9694
0.80 9.4
10686
1.07 11.8
11405
1.30 13.6
12223
1.60 15.2
12892
1.87 16.6
13562
2.18 18.0
14256
2.53 19.6
15000
2.95 21
15545
3.28 23
16240
3.74 24
16983
4.28 26
17727
4.87 28
18372
5.42 30
19215
6.20 33
20082
7.07 36
20826
7.89 39
5746
0.29 3.7
6634
0.40 4.8
7385
0.50 5.9
8193
0.65 7.2
9035
0.82 8.7
10101
1.10 11.0
10863
1.33 12.8
11722
1.63 14.4
12421
1.91 15.8
13116
2.22 17.2
13834
2.58 18.8
14600
3.00 21
15161
3.33 22
15873
3.79 24
16634
4.33 25
17393
4.92 27
18049
5.48 29
18907
6.26 32
19789
7.14 35
20544
7.96 38
RPM Range
Motor HP
2.00
3/4
1
1 1/2
2
3
RPM
5
7 1/2
276
4858
0.38 4.4
6031
0.50 5.5
7113
0.65 6.9
8148
0.84 8.4
9373
1.12 10.7
10214
1.36 12.4
11142
1.66 14.0
11885
1.95 15.3
12617
2.26 16.7
13368
2.62 18.2
14165
3.04 20
14745
3.38 21
15479
3.84 23
16261
4.38 25
17039
4.98 27
17710
5.53 29
18586
6.32 31
19483
7.20 34
20250
8.02 37
305
331
360
6788
0.82 8.0
8358
1.12 10.4
9365
1.36 12.2
10424
1.68 13.8
11245
1.97 15.1
12038
2.28 16.4
12839
2.65 17.9
13679
3.07 19.5
14286
3.41 21
15049
3.88 23
15858
4.43 24
16660
5.02 26
17349
5.58 28
18245
6.37 31
19161
7.26 34
19943
8.08 36
391
431
8200
1.34 11.9
9481
1.67 13.6
10437
1.97 14.9
11332
2.30 16.2
12214
2.66 17.8
13121
3.10 19.4
13767
3.44 21
14572
3.92 22
15417
4.47 24
16248
5.07 26
16961
5.63 28
17882
6.42 30
18821
7.31 33
19619
8.14 36
460
493
520
9335
2.23 15.7
10513
2.63 17.3
11655
3.09 19.0
12442
3.45 20
13391
3.94 22
14359
4.51 24
15288
5.12 26
16070
5.69 27
17066
6.50 30
18067
7.40 33
18911
8.24 35
547
575
9430
2.95 18.3
10567
3.35 19.7
11779
3.87 22
12953
4.47 23
14051
5.11 25
14951
5.70 27
16072
6.53 29
17175
7.45 32
18089
8.30 35
605
627
655
11023
4.32 23
12442
5.00 25
13519
5.63 27
14824
6.49 29
16082
7.44 32
17103
8.31 35
685
715
11551
5.42 26
13266
6.35 28
14741
9310
7.35 31 6.37 29
15904
12267
8.25 34 7.76 33
741
775
810
840
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
17
UBCA44 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.750
1.00
1.25
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
11013
0.57 4.6
11627
0.68 5.2
12504
0.84 6.1
13250
1.00 6.9
14479
1.31 8.2
15269
1.53 9.2
16014
1.77 10.1
16629
1.98 11.0
17462
2.29 12.2
18428
2.69 13.6
19481
3.18 15.1
20709
3.82 16.8
21718
4.41 18.3
22596
4.97 19.6
23561
5.63 21
24570
6.38 23
25448
7.09 24
26457
7.97 26
27422
8.87 28
28387
9.85 30
29002
10.50 31
9673
0.61 4.3
10372
0.72 4.9
11352
0.89 5.8
12172
1.05 6.6
13503
1.36 8.0
14348
1.59 9.0
15140
1.83 10.0
15790
2.04 10.8
16666
2.36 12.0
17676
2.77 13.5
18772
3.26 14.9
20045
3.90 16.7
21086
4.50 18.1
21989
5.06 19.5
22980
5.72 21
24014
6.48 23
24911
7.19 24
25942
8.08 26
26925
8.98 28
27908
9.96 29
28532
10.61 31
7505
0.61 3.8
8657
0.73 4.3
9934
0.91 5.2
10904
1.08 6.0
12402
1.40 7.5
13327
1.64 8.5
14183
1.88 9.5
14878
2.10 10.3
15809
2.42 11.6
16873
2.83 13.1
18021
3.33 14.6
19346
3.98 16.4
20424
4.57 17.9
21357
5.14 19.2
22377
5.81 21
23438
6.57 22
24357
7.29 24
25411
8.18 26
26415
9.09 27
27416
10.07 29
28052
10.73 31
RPM Range
Motor HP
1.50
1
1 1/2
2
3
5
RPM
7 1/2
251
265
285
8558
1.04 5.7
10976
1.41 7.0
12104
1.66 7.9
13084
1.91 8.9
13854
2.14 9.8
14867
2.47 11.0
16006
2.88 12.5
17219
3.39 14.1
18606
4.05 16.0
19729
4.65 17.5
20695
5.22 18.9
21748
5.89 20
22840
6.66 22
23784
7.38 24
24863
8.27 25
25889
9.19 27
26911
10.17 29
27559
10.83 30
302
330
9785
1.59 7.6
11515
1.89 8.5
12536
2.14 9.3
13746
2.48 10.4
15025
2.92 11.9
16341
3.43 13.6
17815
4.10 15.5
18992
4.71 17.0
19999
5.28 18.4
21090
5.97 20
22218
6.74 22
23189
7.47 23
24296
8.36 25
25347
9.28 27
26391
10.27 29
27053
10.94 30
348
365
379
398
11105
2.75 11.5
13855
3.40 13.1
15870
4.13 14.9
17286
4.78 16.5
18436
5.38 17.9
19648
6.08 19.5
20875
6.87 21
21918
7.61 23
23096
8.52 25
24205
9.45 26
25301
10.45 28
25993
11.12 30
420
444
11061
3.73 13.9
14211
4.61 15.4
16189
5.31 16.7
17797
6.08 18.2
19266
6.92 19.8
20452
7.69 21
21753
8.62 23
22954
9.58 25
24124
10.60 27
24857
11.28 28
472
495
515
13614
5.67 17.7
16649
6.73 19.3
18434
7.60 21
20073
8.61 22
21473
9.62 24
22782
10.67 26
23583
11.37 27
537
560
13808
6.97 20
16981
8.29 22
19346
9.45 24
21058
10.60 25
22019
11.34 26
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories).
Power rating (BHP) does not include transmission losses. Bearing losses are included.
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation Type A: free inlet hemispherical sone levels.
18
10
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
580
603
625
647
661
UDCA
Direct Drive Centrifugal Upblast Power Roof Ventilators
Applications
The UDCA units are quiet, dependable upblast power roof
ventilators for the exhaust of grease-laden air from restaurant
range hoods, and general ventilation applications where
vertical discharge of exhaust air is required. Applications
include virtually all types of commercial and institutional
kitchens, such as restaurant and cafeteria, fast food, hospital,
hotel and motel, bakery, delicatessen, school and military.
UDCA units are specified where a roof-mounted location
is desired to eliminate interference with other equipment or
activities in the building. They permit the direct upward
venting of overheated air.
The UDCA is listed under UL classification YZHW for
Power Roof Ventilators for Restaurant Exhaust Systems.
When properly installed, the UDCA also meets the
requirements of National Fire Protection Association
Standard NFPA 96.
These units are particularly
recommended for economical and efficient range hood
ventilation where continuous operation under severe
conditions may cause other power roof ventilators to fail.
Type UDCA ventilators are
UL762 Listed by Underwriters
Laboratory Inc.
UL762 - MH9847
American Coolair Corporation,
ILG Industries certifies that the
Type UDCA PRVs shown herein
are 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.
Construction
UDCA models feature a housing of durable spun
aluminum for optimum weather protection. The overlapping
deep spun venturi minimizes air turbulence and increases
efficiency.
The aluminum centrifugal wheel is a non-overloading,
backward-inclined type, selected for low noise levels.
Backplate fins draw cool air through the motor compartment.
The wheels are computer balanced on state-of-the-art
equipment. The hub features a line bore, which eliminates the
need for bushings.
The motor compartment cover is easily removable for
complete access to the motor, and a factory wired safety
disconnect device is standard.
Drive Mechanism
UDCA models have all the advantages of a direct drive
assembly. There are no belts, pulleys, or bearings to
consume power or require maintenance.
Motors
The standard motor for UDCA models is open
construction, located out of the airstream. Totally enclosed,
energy efficient, two-speed and explosion-proof motors may
also be available. Motor enclosure may affect UL Listing. All
motor brands are recognized and serviced nationwide.
Guide Specifications
Upblast power roof ventilators shall be of the UDCA
centrifugal type as manufactured by ILG Industries of
American Coolair Corporation (individual models to be
listed in fan schedule). Units shall meet UL Standard 762
as required and shall bear the AMCA Certified Ratings
Seal for air and sound performance.
Bottom outer housing and venturi inlet shall be one
piece heavy gauge spun aluminum with built-in grease
drain.
Wheel and venturi shall overlap for efficient
operation. Motor compartment cover shall be heavy gauge
spun aluminum construction and easily removable for
access to motor and drive. Motor compartment disc and
support pipes shall be heavy gauge steel.
Drive mechanism shall be of direct-drive design. The
line bore hub shall be mounted onto the backplate of the
centrifugal wheel. The centrifugal wheel shall be heavy
gauge aluminum with backward-inclined, non-overloading
blades and be computer balanced.
Motor shall be open construction, NEMA design B.
Optional variable speed control allows for field adjustment
and system balance. The unit shall be equipped with a
wired and mounted safety disconnect device.
(Epoxy coating, roof curb and other accessories shall
be listed in the fan schedule.)
19
ILG
UDCA12-UDCA13 Performance Data
UDCA12
0.00
CFM at Static Pressure
.125
.250
.375
.500
.625
.750
RPM RANGE
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
970
0.05 4.2
1056
0.06 5.0
1142
0.08 5.8
1227
0.10 6.8
1313
0.12 7.8
1399
0.14 8.9
1484
0.17 10.1
1570
0.20 11.5
1656
0.24 12.8
1741
0.27 14.2
1827
0.32 15.2
1930
0.37 16.7
844
0.05 3.8
939
0.07 4.6
1033
0.09 5.6
1125
0.11 6.6
1217
0.13 7.7
1308
0.15 8.8
1398
0.18 10.0
1488
0.22 11.4
1578
0.25 12.7
1667
0.29 14.1
1756
0.33 15.2
1862
0.39 16.5
709
0.06 3.4
821
0.08 4.3
926
0.09 5.3
1027
0.11 6.3
1126
0.14 7.3
1222
0.16 8.4
1318
0.19 9.6
1412
0.23 11.0
1505
0.26 12.4
1597
0.30 13.7
1689
0.35 14.9
1798
0.41 16.3
670
0.08 4.0
803
0.10 4.9
920
0.12 5.9
1030
0.14 6.9
1134
0.17 8.1
1236
0.20 9.3
1335
0.24 10.5
1433
0.27 11.9
1529
0.32 13.3
1624
0.36 14.4
1736
0.42 16.0
.250
.375
UDCA13
0.00
925
619
0.09 4.6
787
0.12 5.6
920
0.15 6.6
1038
0.18 7.6
1149
0.21 8.8
1255
0.24 10.1
1358
0.28 11.6
1459
0.32 12.9
1558
0.37 14.1
1674
0.43 15.7
1000
1075
771
0.14 6.4
923
0.18 7.4
1052
0.21 8.4
1169
0.25 9.7
1279
0.29 11.1
1386
0.33 12.4
1490
0.38 13.7
1611
0.44 15.4
1150
758
0.17 7.1
931
0.21 8.3
1070
0.25 9.4
1193
0.30 10.7
1308
0.34 12.0
1418
0.39 13.3
1545
0.45 15.1
1225
1300
1375
965
0.29 10.4
1121
0.34 11.5
1256
1028
0.40 12.7 0.39 12.4
1403
1225
0.47 14.4 0.47 14.0
1450
1525
1600
1690
.500
.625
.750
RPM RANGE
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1157
0.06 5.2
1265
0.08 6.2
1374
0.10 7.4
1482
0.12 8.6
1590
0.15 10.1
1699
0.18 11.7
1807
0.22 13.3
1952
0.28 15.1
2060
0.33 16.3
2169
0.38 17.6
2277
0.44 19.0
1026
0.07 4.5
1146
0.09 5.7
1264
0.11 6.9
1380
0.13 8.2
1495
0.16 9.7
1609
0.20 11.3
1723
0.24 13.1
1874
0.29 14.8
1986
0.34 16.0
2098
0.40 17.3
2210
0.46 18.6
894
0.07 4.1
1026
0.09 5.3
1153
0.12 6.5
1278
0.14 7.9
1401
0.17 9.4
1522
0.21 11.0
1641
0.25 12.7
1798
0.31 14.5
1914
0.36 15.7
2030
0.42 17.0
2144
0.48 18.3
UDCA13J15
RPM
1/2 HP
800
883
0.10 5.0
1038
0.12 6.2
1176
0.15 7.5
1305
0.18 9.0
1432
0.22 10.6
1556
0.26 12.3
1720
0.32 14.1
1841
0.37 15.4
1961
0.43 16.7
2079
0.49 18.0
875
879
0.12 5.9
1051
0.16 7.2
1204
0.19 8.6
1343
0.23 10.2
1473
0.27 11.9
1642
0.33 13.8
1767
0.39 15.0
1890
0.45 16.3
2012
0.51 17.7
950
881
0.15 6.9
1073
0.19 8.4
1236
0.23 9.9
1385
0.28 11.6
1565
0.35 13.4
1694
0.40 14.7
1820
0.46 16.0
1945
0.53 17.4
1025
1100
1104
0.23 9.6
1276
0.28 11.2
1481
0.35 13.0
1619
0.41 14.4
1751
0.47 15.7
1879
0.54 17.1
1175
1250
1259
0.36 12.5
1433
0.42 13.8
1592
1384
0.49 15.2 0.49 14.7
1740
1562
1324
0.56 16.5 0.57 16.1 0.55 15.6
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301
Values shown are for installation Type A: free inlet hemispherical sone levels
AMCA Certified Ratings apply only to the UDCA Roof Ventilator constant speed fans and not variable speed fans
20
RPM
1/2 HP
850
CFM at Static Pressure
.125
UDCA12J16
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
1350
1425
1500
1575
UDCA15 Performance Data
CFM at Static Pressure
0.00
.125
.250
.375
.500
.625
.750
RPM RANGE
1.00
1.25
1.50
BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone BHP Sone
1565
0.10 5.7
1712
0.13 6.8
1858
0.17 7.9
2005
0.21 8.9
2152
0.26 9.9
2299
0.32 11.0
2445
0.38 12.3
2592
0.46 13.8
2739
0.54 15.4
2885
0.63 17.0
3032
0.73 18.6
1411
0.11 5.3
1583
0.14 6.3
1747
0.18 7.3
1905
0.23 8.2
2061
0.28 9.2
2215
0.34 10.3
2368
0.40 11.6
2519
0.48 13.1
2671
0.56 14.6
2821
0.65 16.2
2971
0.75 17.9
1240
0.12 4.7
1413
0.16 6.1
1579
0.20 7.3
1747
0.24 8.2
1922
0.29 9.2
2097
0.35 10.4
2267
0.42 11.6
2431
0.50 12.9
2590
0.58 14.4
2748
0.67 15.9
2904
0.78 17.5
1014
0.12 4.5
1231
0.16 5.6
1443
0.20 6.5
1625
0.25 7.7
1793
0.31 8.9
1959
0.37 10.2
2128
0.44 11.6
2301
0.52 13.1
2478
0.60 14.5
2651
0.70 16.0
2819
0.80 17.6
UDCA15K15
RPM
3/4 HP
800
1023
0.16 5.4
1247
0.20 6.5
1464
0.26 7.3
1674
0.32 8.2
1856
0.38 9.5
2026
0.45 11.1
2192
0.53 12.8
2359
0.62 14.5
2529
0.72 16.1
2704
0.82 17.7
875
1049
0.20 6.4
1286
0.26 7.1
1503
0.32 8.3
1722
0.39 9.2
1923
0.46 10.4
2101
0.55 12.1
2270
0.64 13.9
2436
0.74 15.8
2603
0.85 17.6
950
1086
0.25 7.5
1341
0.32 7.9
1560
0.39 9.3
1778
0.47 10.4
1992
0.55 11.6
2182
0.65 13.3
2355
0.75 15.2
2523
0.86 17.2
1025
1100
1211
0.38 9.3
1487
0.46 10.4
1710
0.55 11.6
1927
0.65 13.3
2145
0.77 15.2
2353
0.89 17.2
1175
1250
1409
0.55 11.7
1670
0.65 13.3
1893
1636
0.76 14.5 0.76 14.6
2110
1879
0.89 15.9 0.89 16.4
1325
1400
1475
1550
Performance shown is for Type A: free inlet, free outlet. Performance ratings do not include the effects of appurtenances (accessories
The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301
Values shown are for installation Type A: free inlet hemispherical sone levels
AMCA Certified Ratings apply only to the UDCA Roof Ventilator constant speed fans and not variable speed fans
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
21
Installation
Maintenance
Most models are shipped fully assembled and ready for
installation. Always inspect equipment for transit damage
before accepting delivery to assure a valid claim. Special
handling and storage procedures are required if unit is to
remain idle for a long time prior to installation.
Units should be checked monthly for the first two or three
months and periodically thereafter.
Placement
All belt-driven units must be accessibly installed for
maintenance of belts, bearings, motors and pulleys and
routine cleaning.
Mounting
Satisfactory operation of roof ventilators requires mounting
on adequately designed and constructed roof curbs.
Prefabricated curbs for convenience in installation are
available from ILG. Install with base of unit horizontal.
Provide adequate caulking, flashing or other
weatherproofing means. Duct connections are made
below the unit.
Inspection
Check centrifugal wheel for free rotation.
Cleaning
Units should be cleaned of grease and material buildup
every three months or when necessary, depending on the
condition of air being exhausted and frequency of use.
Grease trough, drain and container should be checked and
emptied as required to prevent grease overflow, as often
as every one or two weeks with heavy grease applications
such as char-broilers. Units should also be checked for
eroded parts which should be replaced to avoid structural
damage and possible failure.
Lubrication
Proper lubrication is the most important maintenance
requirement. On UBCA units, fan bearings should be
lubricated annually or more frequently based on usage and
operating conditions.
For best results, use a #2
consistency lithium based grease such as Shell Alvania #2
or equivalent lubricant.
Motor bearings should be
lubricated according to the motor manufacturer’s
instructions.
Check belt for proper tension (UBCA).
Check bearings for proper and secure locking to drive
shaft (UBCA).
Adjustment of Variable Pitch Pulley and
Belt (UBCA Only)
Check motor and fan sheave faces for proper alignment
(UBCA).
Variable pitch pulley may be adjusted within catalog RPM
range to alter performance. However, adjustment beyond
catalog RPM range may cause motor overload and
possible premature motor failure. Pulley alignment and
belt tension should be adjusted if necessary. Both motor
and driven pulleys should be at right angles to the shafts,
and the V-grooves should be aligned with each other.
Inspection of drive components every 6 to 12 months is
recommended.
Check circuit phase, voltage and wiring connection
against that shown on motor nameplate.
Check direction of fan rotation for proper air flow.
Check belt after one week of operation for proper
tension (UBCA).
WARNING
CAUTION
DO NOT INSTALL FAN WITH MOVING PARTS
WITHIN 8 FEET OF FLOOR OR GRADE LEVEL
WITHOUT A GUARD THAT COMPLIES WITH
OSHA REGULATIONS. DO NOT USE UNLESS
ELECTRICAL WIRING COMPLIES WITH ALL
APPLICABLE CODES. DO NOT WIRE WITHOUT
PROVIDING FOR A POWER SOURCE
DISCONNECT AT THE FAN ITSELF. DO NOT
SERVICE EXCEPT BY A QUALIFIED
MAINTENANCE TECHNICIAN AND ONLY AFTER
DISCONNECTING THE POWER SOURCE.
FAILURE TO OBSERVE THESE PRECAUTIONS
CAN RESULT IN SERIOUS INJURY OR DEATH.
To convert air performance (CFM and SP) and power (BHP) to metric units, multiply CFM x .000472 to obtain cubic meters
per second (m3/s). Multiply SP x 248.36 to obtain pascals (Pa). Multiply BHP x .7457 to obtain kilowatts (kW).
Example: 3904 CFM x .000472 = 1.8427 m3/s
0.125 SP x 24.36 = 31.05 Pa
0.886 BHP x .7457 = 0.661 kW
ILG
22
UBCA/UDCA Options and Accessories
Grease Extraction Application
Accessories
General Ventilation
Accessories
Prefabricated Roof Curbs
Prefabricated Roof Curbs
Roof curbs for grease extraction UBCA and UDCA models
meet NFPA 96 system requirements for minimum PRV
discharge height above the roof line. Curb height for sizes
18 and below is 20”, and for sizes 20 and above is 18”.
Curbs with venting on two or four sides are also available.
All curbs are insulated, feature a weather-resistant,
continuous welded construction and provide convenience
in installation of PRV units for both insulated and noninsulated roof decks.
Insulated roof curbs with weather-resistant continuous
welded construction are available for convenience in
installation for both insulated and non-insulated roof decks.
Safety Disconnects
Safety disconnects cut power to motor for servicing of unit.
A factory mounted and wired disconnect is an option for
UBCA units with the UL 762 designation. The disconnect
may either be interior with an external weather-proof
junction box (all units), or external (units up to 2 hp only).
Wiring is completed from the motor to the exterior box.
Factory mounted and wired interior disconnect switches
are standard for all UDCA models.
Safety Disconnects
Safety disconnects cut power to motor for servicing of unit.
A disconnect switch is an accessory available on UBCA
units used for general ventilation, and is shipped loose for
field installation. An optional wiring harness is available to
connect the motor to the switch at the internal junction box.
Factory mounted and wired internal disconnect switches
are standard for all UDCA models.
Backdraft Dampers
Gravity or motor operated backdraft dampers are
available. They are aluminum construction and designed
for installation in prefabricated roof curbs.
Birdguards
Wire birdguards are available to prevent entry of birds or
other potentially damaging objects.
Grease Collector
Speed Controller (UDCA models only)
Grease pans collect grease drained from the fan. An
integral baffle contains the grease while allowing water to
flow from the pan. The grease collector should be
attached to the curb below the standard drain.
Solid state speed controller provides capability to change
performance and speed ranging from 50% to 100% of fan
capacity. This permits adjustment for fine tuning and
balancing the ventilation system (see performance tables).
General Options and Accessories
Hinged Base Kits
Hinged bases are specifically designed to provide easy access for cleaning and servicing the lower parts of UBCA and
UDCA units.
Roof Handle
Aluminum handle facilitates removal of the roof. A roof handle is standard for units with the UL762 designation.
Special Motors
Two-speed, totally enclosed, energy efficient and explosion-proof motors for hazardous locations may be available for many
models. Motor requirements may affect UL listings.
Protective Coatings
Fan units are not recommended for exhausting air of a corrosive nature. However, special protective coatings are available
where units may be exposed to corrosive exterior conditions. Parts requiring painting are processed through the American
Coolair five-stage pretreatment system prior to the application of any coatings to insure maximum finish adhesion. These
parts use a thermosetting epoxy powder paint with an average thickness of 3 mils and baked at 400° F to a smooth, hard
continuous finish. Consult your ILG Industries representative for available coatings.
23
ILG
UBCA Specification Checklist
UDCA Specification Checklist
•
•
Units provide grease-laden vapor extraction and
general exhaust with vertical discharge for low, medium
and high air volumes, especially in commercial and
institutional kitchens.
• Centrifugal design has advantages of compact,
attractive appearance, quiet operation and performance
against higher static pressures.
• Variable pitch belt drive allows for speed adjustment.
•
Adjustable hinged motor bracket facilitates
maintenance of belt tension.
• Weatherproof heavy duty aluminum housing and
motor compartment cover resist corrosion, maintaining
appearance.
• Deep-spun, overlapping, one-piece venturi/bottom
outer housing minimizes noise, reduces air turbulence and
improves efficiency.
• Aluminum centrifugal wheel is quiet, non-overloading,
backward-inclined design and is computer balanced.
• Standard open drip-proof motor is out of the airstream
for protection.
• The motor is mounted with the shaft up for convenient
access to the variable pitch cast iron motor pulley.
• The motor compartment is cooled by a forced air
ventilation system, extending motor life.
• Units have the UL Label for the removal of greaseladen vapors and fumes (UL 762), for general ventilation
(UL 705), or for high temperature operation (UL793).
• AMCA Seal assures certified rating of air and sound
performance.
• Heavy duty pillow-block bearings are self-aligning and
relubricable.
Units provide grease-laden vapor extraction and
general exhaust with vertical discharge for low and
medium air volumes, especially in commercial and
institutional kitchens.
• Centrifugal design has advantages of compact,
attractive appearance, quiet operation and performance
against higher static pressures.
• Direct-drive has advantages of minimal maintenance
and operating costs.
• Safety disconnect switch allows power to be cut off for
servicing of unit.
• Weatherproof heavy duty aluminum housing and
motor compartment cover resist corrosion, maintaining
appearance.
• Deep-spun, overlapping, one-piece venturi/bottom
outer housing minimizes noise, reduces air turbulence and
improves efficiency.
• Aluminum centrifugal wheel is quiet, non-overloading,
backward-inclined design and is computer balanced.
• Standard open motor is out of the airstream for
protection.
• The motor compartment is cooled by a forced air
ventilation system, extending motor life.
• Units have the UL Label for the removal of greaseladen vapors and fumes (UL 762).
• AMCA Seal assures certified rating of air and sound
performance.
Limited Warranty
In the sale of its products, American Coolair Corporation agrees to correct, by repairs or replacement, any defects in
workmanship or material that may develop under proper and normal use during the period of one year from the date of
shipment from the factory. Any product or part proving, upon American Coolair's examination, to be defective during limited
warranty period will be repaired or replaced, at American Coolair's option, f.o.b. factory, without charge.
Deterioration or wear caused by chemicals, abrasive action or excessive heat shall not constitute defects.
Motors
are
guaranteed
only
to
the
extent
of
the
manufacturer’s
warranty.
American Coolair's limited warranty does not apply to any of its products or parts that have been subject to accidental
damage, misuse by the user, unauthorized alterations, improper installation or electrical wiring, or lack of proper lubrication or
other service requirements as established by American Coolair.
Repairs or replacements provided under the above terms shall constitute fulfillment of all American Coolair's obligations
with respect to limited warranty.
THE LIMITED WARRANTY STATED HEREIN IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS, STATUTORY
OR IMPLIED, INCLUDING WITHOUT LIMITATION THAT OF MERCHANTABILITY AND FITNESS.
NO LIABILITY FOR REINSTALLATION COST OR FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES
OF ANY NATURE IS ASSUMED OR SHALL BE IMPOSED UPON AMERICAN COOLAIR.
REPRESENTED BY:
AMERICAN COOLAIR CORPORATION
JACKSONVILLE, FLORIDA 32203-2300 ~ P.O. BOX 2300 ~ (904) 389 3646 ~ FAX (904) 387 3449 ~ E-MAIL – [email protected] ~ WEBSITE - coolair.com
VANE AXIAL FANS ~ TUBE AXIAL FANS ~ PROPELLER FANS ~ POWER ROOF VENTILATORS ~ CENTRIFUGAL VENTILATORS
MEMBER OF AMCA
ILG
Form No. 710-15-5 (March, 2016)