Bulletin 331B Supplement
A D VA N C E D T E C H N O L O G Y
IN
I N D U C E D D R A F T, C O U N T E R F L O W C O O L I N G T O W E R S
TECHNOLOGY
FOR THE
F U T U R E ...A VA I L A B L E T O D AY !
† Mark owned by the Cooling Technology Institute
†
T H E A D VA N C E D T E C H N O L O G Y D E SI G N P R O V I D I N G
EVAPCO, Inc., continues its dedication
to advancements in induced draft,
counterflow cooling tower
technology and easy maintenance
with the Advanced Technology Cooling Tower...
The EVAPCO AT!
The expanded AT line offers higher tonnage units and is
designed with IBC compliance construction and
CTI certified performance.
Smooth Flow Fan
• Soft-connect blade to hub design.
• Variable Frequency Drive friendly
• Eliminates critical blade passing
frequencies at any speed.
S
ince its founding in 1976,
EVAPCO, Inc. has become a
world-wide leader in supplying quality cooling equipment
for thousands of customers in
both the commercial and industrial markets.
EVAPCO’s success has been the
result of a continual commitment
to product improvement, quality
workmanship and a dedication to
providing unparalleled service.
EVAPCO unequivocally guarantees
the thermal performance of the
AT cooling tower product line.
Super Low Sound Fan
• Extremely wide sloped fan blades
for sound sensitive applications.
• One piece molded heavy duty
construction.
• 9-15 dB(A) sound reduction.
• Standard on UT models,
available on AT and USS models.
Easy Field Assembly
• A new field assembly seam design
which ensures easier assembly and
reduced potential for field seam leaks.
• Self-guided channels guide the fan
casing section into position improving
the quality of the field seam.
• Eliminates up to 66% of fasteners
compared to previous designs.
Our emphasis on research and
development has led to many
product innovations – a hallmark
of EVAPCO through the years.
Louver Access Door
• Standard on all 14’ x 26’ models.
• Hinged access panel with quick
release mechanism.
• Allows easy access to perform
routine maintenance and inspection of the makeup assembly,
strainer screen and basin.
The ongoing R & D Program enables EVAPCO to provide the most
advanced products in the industry
– technology for the future, available today.
With 17 facilities in eight countries and over 170 sales offices in
42 countries world-wide, EVAPCO
is ready to assist in all your equipment needs.
Quick Connect Piping System
• All inlet and outlet piping connections are
beveled for welding and grooved to accept a
mechanical coupling device as standard.
• Facilitates easy pipe connections for quick
installation.
• Flanged connections are available as an option.
©2010 EVAPCO, INC.
2
† Mark owned by the Cooling Tower Institute
EASIER SOLUTIONS
AND
BETTER CHOICES
Available in multi-cell arrangements with a capacity range of 1,003 to 4,995
Nominal Tons (4,444 to 22,128 kW)! The AT has a model for every application.
If there is an application for which the standard catalog product line does not work, EVAPCO will make a cooling
tower that will fit your requirement! Consult your local EVAPCO Representative or the factory for
all your cooling tower needs.
Exclusive 5 Year Motor
& Drive Warranty
Optional Working Platform
†
CTI Certified-Standard 201
• Independent Certification.
• Eliminates necessity for costly
field performance tests.
• Platform and ladder arrangement available as
an option.
• Provides additional working surface for the
service mechanic.
• One continuous platform on 14’ x 26’ units
provides access to both fan and drive systems.
• Covers the complete drive system,
including the motor.
• Standard on all AT Models.
• Upgraded 5 year Complete Product
warranty on models with optional
stainless steel
construction.
Unique Fan Drive System
L
NEW • Premium efficient, inverter duty motors standard.
•
•
•
•
Power-band belts for better lateral rigidity.
Advanced design aluminum fan blades.
Non-corroding cast aluminum sheaves.
Heavy-duty fan shaft bearings with L-10 life of
75,000 - 135,000 hrs.
• All other components constructed of corrosion
resistant materials.
• Totally enclosed fan motors assure long life.
• Twin fan drives for redundancy.
EvapJet™ Nozzle
Water Distribution System
• Non-corrosive PVC construction with EvapJet™ nozzles.
• Large orifice nozzles prevent clogging and are
threaded for easy removal and positive positioning.
• 66% fewer nozzles!
• System branches have threaded end caps to assist
with debris removal.
Clean Pan Sloped
Basin Design
EVAPCOAT Corrosion Protection System
• G-235 Galvanized Steel Construction–EVAPCO set the standard
with 2.35oz. of zinc per square foot of surface area.
• The standard 304 stainless steel suction strainer eliminates
excessive wear and corrosion.
• Non-corrosive PVC Water Distribution System, Drift
Eliminators and Inlet Louvers.
• This system provides maximum corrosion protection
as standard.
3
• Designed to
completely drain the
cold water basin.
• Helps prevent buildup
of sediment and
biological film.
• Eliminates standing
water after drain
down.
E NGINEERING D ATA & D IMENSIONS
MODELS: AT/UT/USS 114-526 to 114-926
Access Doors
Swing Inside Unit
One-Cell Cooling Towers
ACCESS DOOR
ACCESS DOOR
7
F
ACCESS
DOOR
2
T
ACCESS
DOOR
14 BFW/GROOVED
INLET
12' 10-1/2"
H
P
4 FPT
OVERFLOW
10' 3-3/8"
2' 2"
4 FPT
DRAIN
1' 5-3/8"
3/8 !
9
9
4-1/8"
3 MPT
MAKE-UP
14 BFW/GROOVED
OUTLET
6' 6-1/4"
12' 10-1/2"
13' 11-1/4"
25' 8-7/8"
Weights (LBS)
Dimensions
Model
No.
Shipping
Operating
Heaviest
Section!
Fan
Motor
(HP)
AT-114-526
AT-114-626
AT-114-726
AT-114-826
AT-114-926
24,800
24,860
24,960
25,280
25,300
41,630
41,690
41,790
42,110
42,130
17,660
17,720
17,820
18,140
18,160
(2) 20
(2) 25
(2) 30
(2) 40
(2) 50
Air
Flow
(CFM)
H
T
P
AT/USS
UT
200,200
214,700
227,300
248,500
266,300
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
F
NOTE: (1) An adequately sized bleed line must be installed in the cooling tower system to prevent build-up of impurities in the recirculated water.
(2) Do not use catalog drawings for certified prints. Dimensions and weights are subject to change.
(3) Adequate spacing must be allowed for access to the cooling tower.
(4) Fan guard does not ship factory mounted.
! Outlet connection extends 3/8” beyond bottom flange.
! Heaviest section is the upper section
4
E NGINEERING D ATA & D IMENSIONS
MODELS: AT/UT/USS 214-552 to 214-952
Two-Cell Cooling Towers
Access Doors
Swing Inside Unit
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
7
F
ACCESS
DOOR
T
2
ACCESS
DOOR
ACCESS
DOOR
ACCESS
DOOR
(2) 14 BFW/GROOVED
INLET
12' 10-1/2"
H
P
10' 3-3/8"
2' 2"
3/8 !
1' 5-3/8"
9
4-1/8
(2) 4 FPT
OVERFLOW
(2) 4 FPT
DRAIN
2-1/2
51' 8-1/4"
12' 10-1/2"
19' 2-5/8"
24' 11-7/8"
25' 8-7/8"
13' 11-1/4"
Weights (LBS)
(2) 3 MPT
MAKE-UP
(2) 14 BFW/GROOVED
OUTLET
Dimensions
Model
No.
Shipping
Operating
Heaviest
Section!
Fan
Motor
(HP)
AT-214-552
AT-214-652
AT-214-752
AT-214-852
AT-214-952
49,200
49,320
49,520
50,160
50,200
82,860
82,980
83,180
83,820
83,860
17,660
17,720
17,820
18,140
18,160
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
Air
Flow
(CFM)
H
T
P
AT/USS
UT
393,500
422,100
446,800
488,700
523,700
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
F
NOTE: (1) An adequately sized bleed line must be installed in the cooling tower system to prevent build-up of impurities in the recirculated water.
(2) Do not use catalog drawings for certified prints. Dimensions and weights are subject to change.
(3) Adequate spacing must be allowed for access to the cooling tower.
(4) These models are available as (2) independent operating cells. Consult the factory for details.
(5) Fan guard does not ship factory mounted.
! Outlet connection extends 3/8” beyond bottom flange.
! Heaviest section is the upper section
5
E NGINEERING D ATA & D IMENSIONS
MODELS: AT/UT/USS 314-578 to 314-978
Three-Cell Cooling Towers
Access Doors
Swing Inside Unit
ACCESS DOOR ACCESS DOOR
7
ACCESS DOOR ACCESS DOOR
ACCESS DOOR ACCESS DOOR
F
ACCESS
DOOR
2
ACCESS
DOOR
ACCESS
DOOR
ACCESS
DOOR
ACCESS
DOOR
ACCESS
DOOR
T
(3) 14 BFW/GROOVED
INLET
12' 10-1/2"
H
P
10' 3-3/8"
2' 2"
3/8 !
12' 10-1/2"
1' 5-3/8"
(3) 4 FPT
OVERFLOW
(3) 4 FPT
DRAIN
19' 2-5/8"
9
4-1/8
24' 11-7/8"
25' 8-7/8"
(3) 14 BFW/GROOVED
OUTLET
(3) 3 MPT
MAKE-UP
2-1/2
13' 11-1/4"
77' 7-5/8"
Weights (LBS)
Dimensions
Model
No.
Shipping
Operating
Heaviest
Section!
Fan
Motor
(HP)
AT-314-578
AT-314-678
AT-314-778
AT-314-878
AT-314-978
73,620
73,800
74,100
75,060
75,120
124,110
124,290
124,590
125,550
125,610
17,660
17,720
17,820
18,140
18,160
(6) 20
(6) 25
(6) 30
(6) 40
(6) 50
Air
Flow
(CFM)
H
T
P
AT/USS
UT
586,300
628,800
665,700
728,100
780,300
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
F
NOTE: (1) An adequately sized bleed line must be installed in the cooling tower system to prevent build-up of impurities in the recirculated water.
(2) Do not use catalog drawings for certified prints. Dimensions and weights are subject to change.
(3) Adequate spacing must be allowed for access to the cooling tower.
(4) These models are available as (3) independent operating cells. Consult the factory for details.
(5) Fan guard does not ship factory mounted.
! Outlet connection extends 3/8” beyond bottom flange.
! Heaviest section is the upper section
6
E NGINEERING D ATA & D IMENSIONS
MODELS: AT/UT/USS 228-526 to 228-926
Access Doors
Swing Inside Unit
Two-Cell Cooling Towers
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
7
F
ACCESS
DOOR
T
(2) 14 BFW/GROOVED
INLET
ACCESS
DOOR
2
6' 11-5/8"
H
P
10' 3-3/8"
2' 2"
(2) 4 MPT OVERFLOW
(2) 3 MPT MAKE-UP
(2) 4 MPT DRAIN
5-1/8
28' 3-5/8"
(2) 14 BFW/GROOVED
OUTLET
11' 6"
13' 1-1/4"
13' 5-1/2"
13' 6-1/2"
13' 11-1/4"
1' 5-3/8"
4
9
! 3/8
25' 8-7/8"
Weights (LBS)
Dimensions
Model
No.
Shipping
Operating
Heaviest
Section!
Fan
Motor
(HP)
AT-228-526
AT-228-626
AT-228-726
AT-228-826
AT-228-926
48,940
49,060
49,260
49,900
49,940
82,600
82,720
82,920
83,560
83,600
17,660
17,720
17,820
18,140
18,160
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
Air
Flow
(CFM)
H
T
P
AT/USS
UT
392,000
420,400
445,100
486,800
521,700
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
F
NOTE: (1) An adequately sized bleed line must be installed in the cooling tower system to prevent build-up of impurities in the recirculated water.
(2) Do not use catalog drawings for certified prints. Dimensions and weights are subject to change.
(3) Adequate spacing must be allowed for access to the cooling tower.
(4) These models are available as (2) independent operating cells. Consult the factory for details.
(5) Fan guard does not ship factory mounted.
! Outlet connection extends 3/8” beyond bottom flange.
! Heaviest section is the upper section
7
E NGINEERING D ATA & D IMENSIONS
MODELS: AT/UT/USS 428-552 to 428-952
Four-Cell Cooling Towers
Access Doors
Swing Inside Unit
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
ACCESS DOOR
7
F
ACCESS
DOORS
ACCESS
DOORS
ACCESS
DOORS
ACCESS
DOORS
T
(4) 14 BFW/GROOVED
INLET
2
6' 11-5/8"
H
P
10' 3-3/8"
(2) 14 BFW/GROOVED
OUTLET
(4) 4 MPT OVERFLOW
(4) 3 MPT MAKE-UP
(4) 4 MPT DRAIN
5-1/8
28' 3-5/8"
11' 6"
13' 1-1/4"
13' 5-1/2"
13' 6-1/2"
13' 11-1/4"
1' 5-3/8"
9
2' 2"
!
25' 8-7/8"
3' 7"
25' 8-7/8"
3/8
4
55' 3/4"
Weights (LBS)
Dimensions
Model
No.
Shipping
Operating
Heaviest
Section!
Fan
Motor
(HP)
AT-428-552
AT-428-652
AT-428-752
AT-428-852
AT-428-952
97,960
98,200
98,600
99,880
99,960
165,280
165,520
165,920
167,200
167,280
17,660
17,720
17,820
18,140
18,160
(8) 20
(8) 25
(8) 30
(8) 40
(8) 50
Air
Flow
(CFM)
H
T
P
AT/USS
UT
747,500
801,900
849,100
928,900
995,700
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
21’ 3/8”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
10’ 9”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
16’ 3-3/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
1’ 3-1/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
2’ 6-3/4”
F
NOTE: (1) An adequately sized bleed line must be installed in the cooling tower system to prevent build-up of impurities in the recirculated water.
(2) Do not use catalog drawings for certified prints. Dimensions and weights are subject to change.
(3) Adequate spacing must be allowed for access to the cooling tower.
(4) These models are available as (4) independent operating cells. Consult the factory for details.
(5) Fan guard does not ship factory mounted.
! Outlet connection extends 3/8” beyond bottom flange.
! Heaviest section is the upper section
8
T HERMAL P ERFORMANCE
MODELS: AT/UT/USS 114-526 to 428-952
Model No.
AT-114-526
AT-114-626
AT-114-726
AT-114-826
AT-114-926
AT-214-552
AT-214-652
AT-214-752
AT-214-852
AT-214-952
AT-314-578
AT-314-678
AT-314-778
AT-314-878
AT-314-978
AT-228-526
AT-228-626
AT-228-726
AT-228-826
AT-228-926
AT-428-552
AT-428-652
AT-428-752
AT-428-852
AT-428-952
Model No.
AT-114-526
AT-114-626
AT-114-726
AT-114-826
AT-114-926
AT-214-552
AT-214-652
AT-214-752
AT-214-852
AT-214-952
AT-314-578
AT-314-678
AT-314-778
AT-314-878
AT-314-978
AT-228-526
AT-228-626
AT-228-726
AT-228-826
AT-228-926
AT-428-552
AT-428-652
AT-428-752
AT-428-852
AT-428-952
Motor
Hp
(2) 20
(2) 25
(2) 30
(2) 40
(2) 50
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
(6) 20
(6) 25
(6) 30
(6) 40
(6) 50
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
(8) 20
(8) 25
(8) 30
(8) 40
(8) 50
Motor
Hp
(2) 20
(2) 25
(2) 30
(2) 40
(2) 50
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
(6) 20
(6) 25
(6) 30
(6) 40
(6) 50
(4) 20
(4) 25
(4) 30
(4) 40
(4) 50
(8) 20
(8) 25
(8) 30
(8) 40
(8) 50
EWT
LWT
WB
EWT
LWT
WB
†
Thermal performance certified by the Cooling Technology
Institute (CTI) in accordance with CTI Standard STD-201
TOWER CAPABILITY IN USGPM AT THE FOLLOWING TEMPERATURE CONDITIONS (°F)
90°
95°
90°
95°
90°
95°
90°
95°
95°
80°
80°
80°
80°
80°
80°
80°
80°
85°
66°
66°
68°
68°
70°
70°
72°
72°
75°
3,777
3,076
3,536
2,869
3,195
2,611
2,840
2,355
3,571
4,037
3,302
3,784
3,086
3,429
2,814
3,054
2,543
3,821
4,258
3,497
3,995
3,270
3,626
2,987
3,238
2,705
4,033
4,623
3,816
4,345
3,577
3,953
3,276
3,544
2,975
4,386
4,919
4,077
4,631
3,827
4,221
3,514
3,792
3,197
4,672
7,431
6,043
6,956
5,636
6,281
5,126
5,579
4,621
7,025
7,944
6,492
7,444
6,063
6,741
5,528
6,001
4,994
7,517
8,383
6,877
7,862
6,429
7,133
5,868
6,366
5,311
7,937
9,106
7,507
8,555
7,037
7,780
6,441
6,971
5,844
8,635
9,692
8,024
9,120
7,530
8,310
6,911
7,459
6,285
9,203
11,075
9,001
10,365
8,395
9,357
7,633
8,309
6,880
10,469
11,841
9,672
11,094
9,031
10,043
8,232
8,939
7,436
11,202
12,496
10,246
11,718
9,578
10,630
8,741
9,484
7,909
11,830
13,576
11,188
12,753
10,487
11,595
9,595
10,387
8,705
12,872
14,452
11,959
13,598
11,222
12,387
10,297
11,116
9,363
13,722
7,404
6,019
6,930
5,614
6,257
5,105
5,557
4,601
6,999
7,915
6,467
7,417
6,039
6,715
5,505
5,977
4,973
7,489
8,353
6,851
7,833
6,404
7,106
5,845
6,341
5,289
7,909
9,074
7,480
8,525
7,011
7,751
6,416
6,945
5,821
8,604
9,659
7,995
9,089
7,502
8,281
6,885
7,432
6,260
9,171
14,144
11,458
13,215
10,672
11,912
9,701
10,560
8,726
13,350
15,134
12,325
14,169
11,496
12,803
10,462
11,379
9,440
14,308
15,979
13,063
14,975
12,201
13,563
11,127
12,077
10,052
15,121
17,380
14,290
16,314
13,375
14,815
12,224
13,243
11,080
16,470
18,520
15,289
17,408
14,333
15,838
13,128
14,198
11,919
17,570
100°
85°
75°
2,922
3,142
3,329
3,639
3,892
5,741
6,175
6,545
7,159
7,659
8,551
9,198
9,750
10,668
11,415
5,718
6,151
6,519
7,132
7,631
10,877
11,709
12,428
13,614
14,580
TOWER CAPABILITY IN USGPM AT THE FOLLOWING TEMPERATURE CONDITIONS (°F)
95°
100°
95°
97°
100°
102°
95°
97°
100°
85°
85°
85°
87°
85°
87°
85°
87°
85°
76°
76°
78°
78°
78°
78°
80°
80°
80°
3,398
2,791
3,009
3,563
2,495
2,935
2,534
3,138
2,140
3,639
3,002
3,233
3,813
2,691
3,155
2,732
3,368
2,314
3,845
3,184
3,425
4,025
2,859
3,343
2,902
3,564
2,466
4,187
3,487
3,740
4,377
3,141
3,654
3,186
3,887
2,719
4,465
3,731
3,997
4,663
3,371
3,907
3,419
4,152
2,926
6,680
5,480
5,913
7,010
4,900
5,766
4,975
6,167
4,198
7,159
5,898
6,356
7,501
5,284
6,202
5,365
6,621
4,541
7,566
6,259
6,734
7,920
5,618
6,572
5,701
7,010
4,842
8,241
6,856
7,357
8,617
6,172
7,187
6,263
7,649
5,338
8,791
7,340
7,867
9,185
6,626
7,689
6,721
8,172
5,749
9,952
8,161
8,807
10,446 7,296
8,588
7,408
9,185
6,250
10,669
8,785
9,470
11,178 7,868
9,238
7,989
9,864
6,760
11,275
9,324
10,032 11,805 8,368
9,791
8,492
10,447
7,208
12,283 10,214 10,964 12,846 9,193
10,711
9,329
11,400
7,949
13,105 10,939 11,725 13,694 9,872
11,460 10,013 12,181
8,564
6,654
5,458
5,889
6,983
4,879
5,743
4,954
6,142
4,180
7,133
5,874
6,332
7,473
5,262
6,177
5,343
6,595
4,521
7,538
6,235
6,708
7,892
5,595
6,546
5,678
6,984
4,821
8,211
6,829
7,330
8,587
6,147
7,161
6,238
7,621
5,316
8,760
7,313
7,838
9,153
6,600
7,661
6,695
8,143
5,726
12,687 10,371 11,211 13,320 9,254
10,926
9,403
11,693
7,907
13,615 11,182 12,059 14,277 10,000 11,759 10,153 12,574
8,575
14,402 11,869 12,790 15,088 10,636 12,481 10,800 13,321
9,143
15,704 13,022 14,003 16,435 11,702 13,671 11,876 14,561 10,102
16,773 13,970 14,984 17,534 12,584 14,638 12,765 15,573 10,894
ASHRAE
STD 90.1
Rating
(gpm/Hp)
89.28
76.42
67.22
54.82
46.72
87.81
75.17
66.14
53.97
46.02
87.24
74.68
65.72
53.63
45.74
87.48
74.89
65.90
53.78
45.86
83.44
71.54
63.00
51.47
43.93
102°
87°
80°
2,607
2,811
2,983
3,272
3,510
5,119
5,521
5,861
6,433
6,903
7,623
8,221
8,730
9,583
10,284
5,098
5,498
5,838
6,408
6,876
9,688
10,448
11,113
12,208
13,112
To Make a Selection:
Locate the column with the desired operating temperature conditions. Read down the column until you find the GPM equal to or greater than the flow
required. Read horizontally to the left to find the model number of the unit that will perform the duty. For selections and conditions other than those
stated, consult your evapSelect™ Program or local EVAPCO representative.
† Mark owned by the Cooling Technology Institute
9
S TRUCTURAL S TEEL S UPPORT
Models AT/UT/USS 114-526 to 314-978
Suggested Two I-Beam Arrangement
Two I-Beams Required (By Others)
Dimensions
End Elevation
Model No.
W
L
114-526 to 926
214-552 to 952
314-578 to 978
13’ 11-1/4”
13’ 11-1/4”
13’ 11-1/4”
25’ 8-7/8”
51’ 8-1/4”
77’ 7-5/8
Plan View
Models AT/UT/USS 228-526 to 428-952
Suggested Three I-Beam Arrangement
Three I-Beams Required (By Others)
Dimensions
Model No.
W
L
228-526 to 926
424-552 to 952
28’ 3-5/8”
28’ 3-5/8”
25’ 8-7/8”
55’ 3/4”
End Elevation
Plan View
Notes:
1. These are suggested arrangements for preliminary layout purposes. Consult your EVAPCO representative for factory certified steel
support drawings.
2. The recommended support for the AT/UT/USS Cooling Tower is structural I-beams located under the outer flanges and running the entire
length of the unit. The unit should be elevated to allow access underneath the unit and to the roof below. Mounting holes, 3/4” in diameter, are located in the bottom flanges of the pan to provide for bolting to the structural steel.
3. Beams should be sized in accordance with accepted structural practices. Maximum deflection of beam under unit to be 1/360 of the unit
length, not to exceed 1/2”.
4. For models where two support beams are required, deflection may be calculated by using 55% of the operating weight as a uniform load
on each beam.
5. For models where three support beams are required, deflection may be calculated by using 56% of the operating weight on the CENTER
BEAM and 22% on each OUTBOARD BEAM.
6. Beams should be level before setting the unit in place. Do not level the unit by shimming between it and the I-beams.
7. Support beams and Anchor bolts are to be furnished by others.
8. Dimensions, weights and data are subject to change without notice. Refer to the factory certified drawings for exact dimensions.
9. For alternate layout arrangements please consult the factory. NOTE: OPTIONAL BOTTOM CONNECTIONS WILL REQUIRE THE UNIT TO BE
ELEVATED TO ALLOW FOR PIPING.
10
Drain Down Volume for Remote Sump Applications
The following chart provides the maximum drain down volume allowable per
AT/UT/USS model number. Use this chart when sizing indoor or outdoor remote
sumps tanks. Remote sump applications are commonly used whenever a cooling
tower is idle during sub-freezing weather to protect the water in the basin from
freezing or for large multi-tower industrial applications. Either application allows
the circulating water to gravity drain into a remote sump tank indoors or a large,
outdoor concrete basin located underneath the cooling tower.
The water volume
provided is the cooling
tower portion of the
remote sump tank only.
The tank should allow
for drain down water
from external piping and
pump suction coverage.
Model
Maximum
Drain Down
Volume
114-526 to 114-926
214-552 to 214-952
314-578 to 314-978
228-526 to 228-926
428-552 to 428-952
2,325
4,650
6,975
4,050
9,300
Platform & Ladder for Improved
Drive System Access
Available as an option, one continuous
platform provides easy access to both
fan and drive systems.
11
®
E VA P C O P R O D U C T S
ARE
M A N U FA C T U R E D W O R L D W I D E .
W
World
Headquarters/
Research and
R
Development Center
D
EVAPCO Facilities
EVAPCO, Inc. — World Headquarters & Research/Development Center
EVAPCO, Inc. • P.O. Box 1300 • Westminster, MD 21158 USA
PHONE: 410-756-2600 • FAX: 410-756-6450 • E-MAIL: marketing@evapco.com
EVAPCO North America
EVAPCO, Inc.
World Headquarters
P.O. Box 1300
Westminster, MD 21158 USA
Phone: 410-756-2600
Fax: 410-756-6450
E-mail: marketing@evapco.com
EVAPCO East
5151 Allendale Lane
Taneytown, MD 21787 USA
Phone: 410-756-2600
Fax: 410-756-6450
E-mail: marketing@evapco.com
EVAPCO Midwest
1723 York Road
Greenup, IL 62428 USA
Phone: 217-923-3431
Fax: 217-923-3300
E-mail: evapcomw@evapcomw.com
EVAPCO West
1900 West Almond Avenue
Madera, CA 93637 USA
Phone: 559-673-2207
Fax: 559-673-2378
E-mail: contact@evapcowest.com
EVAPCO Europe
Refrigeration Valves &
Systems Corporation
A wholly owned subsidiary of EVAPCO, Inc.
1520 Crosswind Dr.
Bryan, TX 77808 USA
Phone: 979-778-0095
Fax: 979-778-0030
E-mail: rvs@rvscorp.com
McCormack Coil Company, Inc.
A wholly owned subsidiary of EVAPCO, Inc.
P.O. Box 1727
6333 S.W. Lakeview Boulevard
Lake Oswego, OR 97035 USA
Phone: 503-639-2137
Fax: 503-639-1800
E-mail: mail@mmccoil.com
EvapTech, Inc.
A wholly owned subsidiary of EVAPCO, Inc.
8331 Nieman Road
Lenexa, KS 66214 USA
Phone: 913-322-5165
Fax: 913-322-5166
E-mail: marketing@evaptech.com
Tower Components, Inc.
A wholly owned subsidiary of EVAPCO, Inc.
EVAPCO Iowa
925 Quality Drive
Lake View, IA 51450 USA
Phone: 712-657-3223
Fax: 712-657-3226
5960 US HWY 64E
Ramseur, NC 27316
Phone: 336-824-2102
Fax: 336-824-2190
E-mail: mail@towercomponentsinc.com
EVAPCO Iowa
Sales & Engineering
1234 Brady Boulevard
Owatonna, MN 55060 USA
Phone: 507-446-8005
Fax: 507-446-8239
E-mail: evapcomn@evapcomn.com
EVAPCO Newton
701 East Jourdan Street
Newton, IL 62448 USA
Phone: 618-783-3433
Fax: 618-783-3499
E-mail: evapcomw@evapcomw.com
EVAPCO...SPECIALISTS IN HEAT TRANSFER
PRODUCTS AND SERVICES.
1500/0910/YGS
Visit EVAPCO’s Website at:
EVAPCO Europe, N.V.
European Headquarters
Industrieterrein Oost 4010
3700 Tongeren, Belgium
Phone: (32) 12-395029
Fax: (32) 12-238527
E-mail: evapco.europe@evapco.be
EVAPCO Europe, S.r.l.
Via Ciro Menotti 10
I-20017 Passirana di Rho
Milan, Italy
Phone: (39) 02-939-9041
Fax: (39) 02-935-00840
E-mail: evapcoeurope@evapco.it
EVAPCO Europe, S.r.l.
Via Dosso 2
23020 Piateda Sondrio, Italy
EVAPCO Europe, GmbH
Bovert 22
D-40670 Meerbusch, Germany
Phone: (49) 2159-69560
Fax: (49) 2159-695611
E-mail: info@evapco.de
Flex coil a/s
A wholly owned subsidiary of EVAPCO, Inc.
Knøsgårdvej 115
DK-9440 Aabybro Denmark
Phone: (45) 9824 4999
Fax: (45) 9824 4990
E-mail: info@flexcoil.dk
EVAPCO S.A. (Pty.) Ltd.
A licensed manufacturer of EVAPCO, Inc.
18 Quality Road
Isando 1600
Republic of South Africa
Phone: (27) 11-392-6630
Fax: (27) 11-392-6615
E-mail: evapco@evapco.co.za
Evap Egypt Engineering Industries Co.
5 El Nasr Road, Nasr City, Cairo, Egypt
Phone: +2 (02) 24022866/+2 (02) 24044997/8
Fax: +2 (02) 24044667/8
Mobile: +2 (012) 3917979
E-mail: Primacool@link.net / Shady@primacool.net / Shady@primacool.com
Website: www.Tibagroup.me
http://www.evapco.com
EVAPCO Asia/Pacific
EVAPCO Asia/Pacific Headquarters
1159 Luoning Rd. Baoshan Industrial Zone
Shanghai, P. R. China, Postal Code: 200949
Phone: (86) 21-6687-7786
Fax: (86) 21-6687-7008
E-mail: marketing@evapcochina.com
Evapco (Shanghai) Refrigeration
Equipment Co., Ltd.
1159 Louning Rd., Baoshan Industrial Zone
Shanghai, P.R. China, Postal Code: 200949
Phone: (86) 21-6687-7786
Fax: (86) 21-6687-7008
E-mail: marketing@evapcochina.com
Beijing EVAPCO Refrigeration
Equipment Co., Ltd.
Yan Qi Industrial Development District
Huai Rou County
Beijing, P.R. China, Postal Code: 101407
Phone: (86) 10 6166-7238
Fax: (86) 10 6166-7395
E-mail: evapcobj@evapcochina.com
Evapco Australia (Pty.) Ltd.
34-42 Melbourne Road
P.O. Box 436
Riverstone, N.S.W. Australia 2765
Phone: (61) 2 9627-3322
Fax: (61) 2 9627-1715
E-mail: sales@evapco.com.au
EvapTech Asia Pacific Sdn. Bhd
A wholly owned subsidiary of EvapTech, Inc.
IOI Business Park, 2/F Unit 20
Persiaran Puchong Jaya Selatan
Bandar Puchong Jaya,
47170 Puchong, Selangor, Malaysia
Phone: (60-3) 8070 7255
Fax: (60-3) 8070 5731
E-mail: marketing-ap@evaptech.com
Bulletin 331B Supplement