INDUSTRIAL DIRECT AND INDIRECT/DIRECT EVAPORATIVE COOLING
Engineer designed to satisfy your design requirements.
Cost Effectiveness
Modular Components
• Air Handling Modules in side, down or up
discharge and single or dual inlet design.
• Competitive first cost combined with substantial
energy savings over refrigerated air units results in
quick payback. Plus, the simplicity of design allows
low maintenance requirements.
• Evaporative Media Modules with standard 8” or
Hi-Performance 12” media.
• Indirect Cooling Modules for added cooling
with no moisture added (optional).
Other Features
• Precision balanced blower wheel.
• Solid shaft for rugged durability.
• AdobeAir motors and pumps are U.L. Recognized.
• City of Los Angeles (C.O.L.A.) approved.
• AMCA Licensed ratings
Durable Construction
• Galvanized steel with our exclusive
POLYBOND® polyester epoxy powder
based coating ensures years of dependable
service.
• U.L. Classified
Efficiency
• U.L. Listed
• Choice of media modules allows cooling
efficiencies tailored to your design
requirements.
Dual Inlet
Single Inlet
Shown with 12” media modules DM080
Models MD628, MS628, and MU628
Shown with 12” media modules DM120
U.L. Classified
Models MD524 and MS524
U.L. Classified
U.L. Listed
Models UD960 and US960
Shown with 12” media modules UM080
Models UD980 and US980
Shown with 12” media modules UM120
U.L. Listed
AdobeAir, Inc. certifies that the evaporative air cooling products
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 comply with the
requirements of the AMCA Certified Ratings Program.
2-STAGE INDUSTRIAL EVAPORATIVE COOLING
The Indirect Cooling Module
Indirect/Direct Evaporative Cooling Process
Outside air is drawn into the ICM. A fan
draws air through the inside of vertical fins
(which have water running inside them). The
air picks up heat and is expelled from the
ICM while the fins are cooled by evaporation.
Other outside air is drawn across the outside
surfaces of the cooled fins, and is cooled
without coming in contact with water. This
cooled air, with no humidity added, then
enters the direct evaporative section of the
Industrial MasterCool for final cooling.
In the indirect cooling stage, entering air is cooled along a horizontal
humidity ratio line on the Psychrometric Chart (A to B) without adding
moisture. In the next cooling stage, this air is further cooled along a new
wet-bulb line (B
to C), resulting in
a lower dry-bulb
temperature of
leaving air than
can be achieved
with single stage
direct evaporative
cooling alone.
Typical Configurations
Many configurations of 2-Stage Industrial MasterCool are possible.
Typical field-assembled components include 2 or 3 Indirect Cooling
Modules with Models MD/MS524 and 4 or 6 ICM’s with models MD/MS/
MU628 Contact your
local MasterCool
representative for
assistance in sizing.
Models shown with
three ICM’s at each
inlet location.
KoolKalk...
2-Stage Indirect/Direct
Computer Aided Sizing
Evaporative Cooling
The sizing method described in this brochure can be used
for general sizing of direct evaporative Industrial MasterCool
units.
2-Stage cooling allows you to use energy-saving
evaporative cooling technology for design conditions
where direct evaporative cooling alone is not adequate.
A 2-stage cooler results in greater cooling power, less
affected by higher ambient temperature and humidity.
For more accurate sizing, and for sizing indirect/direct units,
we recommend the use of KoolKalk... an IBM compatible
computer program designed specifically for AdobeAir
Evaporative Coolers. For more information please visit the
In the indirect cooling stage, outside entering air
is cooled sensibly reducing its total enthalpy. This
“precooled” air is then evaporatively cooled in the direct
cooling stage, approaching its new, lower
wet-bulb temperature.
The end result is discharge temperatures near or
even slightly below the wet-bulb temperature.
More importantly, these lower discharge temperatures
translate into customer comfort at a fraction of the cost
of refrigerated air conditioning.
Applications
With its substantial increase in cooling capacity, the
indirect/direct 2-stage Industrial MasterCool can replace
mechanical refrigeration in many applications.
DIMENSIONS AND SPECIFICATIONS
Single Inlet Model Dimensions MD524 or UD960 (Down Discharge) and MS524 or US960 (Side Discharge)
Top View
Side View
Front View
MD/MS524 or UD/US960
Media SectionCabinet
Model Number
1 Required
Duct Location
Drain1
Media Blower Water2
Electric3
Service
Location
Blower Wheel
Blower Skid Location
Media
Dimension Area
Pad
Location Cabi- Cabi-
Service
Pulley
Pitch
Side
Down
C
net
J
net
K
Location
H
W
D
A
B
E
F
G
L
M
S
T
Dia. Width Shaft Dia.
N
2
2
P
Q
4
4
R
X
V
Sq.Ft.
DM080
or UM080 51½ 491/8 66 26¾ 17
3
3
11¼ 13 133/8 17 491/8 7¼ 123/8 18 35½ 24 24
11¼ 13 173/8 21 491/8 7¼ 163/8 22 35½ 24 24
13/16 13
13/16 13
15/8
15/8
2½ 445/8 48 14.8
2½ 445/8 48 14.8
DM120
or UM120 51½ 491/8 70 26¾ 17
1. Drain is 3/4” male hose thread.
2. Water service can be left or right for 1/4” tubing.
3. 7/8” knockout for running electrical service.
Electrical Specifications
HP
¾
¾
¾
1
Speed
Phase
Voltage
115/230
Amperage
12.5/6.2
5.9
NEMA Frame
56
Shaft Diameter
Motor Kit #
EJ006
EJ020
EJ883
EJ007
EJ021
EJ665
EJ212
EJ666
EJ213
EJ667
EJ668
EJ659
EJ675
1
2
1
1
2
1
1
1
1
1
1
1
1
1
1
3
1
1
3
1
3
1
3
3
3
3
5/8
230
56
5/8
208-230/460
115/230
3.0/1.5
56
5/8
15.1/7.5
7.3
56
5/8
1
230
56
5/8
1
208-230/460
115/230
3.6/1.7
143T
143T
143T
143T
143T
182T
184T
213T
7/8
1½
1½
2
14.5/6.3
4.6/2.2
7/8
208-230/460
115/230
7/8
19.0/8.5
7.1/3.3
7/8
2
208-230/460
208-230/460
208-230/460
208-230/460
7/8
3
8.7-8.4/4.2
14.2-13.0/6.5
20.9-19.2/9.6
11/8
11/8
13/8
5
7½
• Amperage from National Electric Code.
• See nameplate on actual motor for amperage in figuring overload protector.
• Single phase motors rated 230 volts can be operated at nameplate amps at 208 volts. • All 3-phase motors listed are suitable for use on evaporative coolers at 200 volts.
Pump Specifications
Bleed Rates
GPH per Media Module
Blower Motor HP
Pump
Volts
Amps
Watts
GPH
At 4’ Head
300
Blower Model
¾
Model#
CP280
CP480
1
8
1½
9
2
3
5
–
7½
–
115
230
1.2
.6
80
80
524 or 960
7
10
14
10
16
300
628 or 980
–
11
13
18
20
Note: Pumps are available in 115 volt and 230 volt models. As a
result, transforming or separate circuiting may be required for
other voltages.
Dual Inlet Model Dimensions MD628 or UD980 (Down Discharge), MS628 or US980 (Side Discharge) and MU628 (Up Discharge)
Top View
Side View - Blower Section
Front View
(UP)
(DOWN)
MD/MS/MU628 or UD/US980
Media Section
Model Number
1 Required
Cabinet
Duct Location
Drain1
Media Blower Water2
Electric3
Service
Location
Blower Wheel
Blower Skid Location
Media
Dimension Area
Pad
Location Cabi- Cabi-
Service
Pulley
Pitch
Side
Down
C
net
J
net
K
Location
H
W
D
A
B
E
F
G
L
M
S
T
Dia. Width Shaft Dia.
N
P
Y
Q
R
X
V
Sq.Ft.
DM080
or UM080 51½ 831/8 491/8 31¾ 17¾ 15¼ 8¾ 13 133/8 17 491/8 71⁄4 123/8 18 35½ 28 28
13/16 18 19 15/8 2 4 2½ 445/8 48 14.8
13/16 18 23 15/8 4 4 2½ 445/8 48 14.8
DM120
or UM120 51½ 911/8 491/8 31¾ 17¾ 15¼ 8¾ 13 173/8 21 491/8 71⁄4 163/8 22 35½ 28 28
1. Drain is 3/4” male hose thread.
2. Water service can be left or right for 1/4” tubing.
3. 7/8” knockout for running electrical service.
Refer to the Electrical Specifications chart on facing page.
Sizing Instructions
4. Determine the RPM that will deliver the required airflow (CFM) at the static
pressure of the system.
Follow these steps to properly size the Industrial MasterCool. The performance or
Sensible Heat Capacity of any cooler is a function of both the CFM and saturation
efficiency (which determines the delivered air discharge temperature). Sizing by
only considering CFM may result in an improperly sized application.
Refer to the Certified Air Delivery CFM chart for the chosen cooler and selected
motor HP.
1. Determine design conditions:
Outdoor Dry-Bulb DB1
5. Determine the sheave, and the number of turns open, that is closest to the
desired RPM.
Refer to the Sheave Selection charts on the next page. Find the selected motor HP,
shaft size, and desired RPM (See Steps 2-4 above). You might need to look at more
than one sheave before finding the correct RPM.
Outdoor Wet-Bulb WB1
Indoor Dry-Bulb T1
2. Determine design sensible heat load (Btuh)
3. Determine leaving air temperature (LAT):
LAT = DB1 - [(DB1 - WB ) * EFF]
where EFF ‘ 0.80 for 8” media or 0.90 for 12” media
4. Determine CFM required:
6. Specify the sheave and sheave setting (turns open) for the installer.
Ordering
When ordering your cooler, you should know this information.
• System design static pressure.
• Desired air volume at system design.
• Electrical power supply available.
CFM = 0.925 * Sensible Heat Load
(T1 - LAT)
• Stability of structure to support operating weight of unit.
5. Determine the cooler(s) required:
Refer to the specification / air flow charts on next page.
6. Use KoolKalk to account for various losses:
This will result in more accurate sizing.
Complete systems consist of the following components, and are sold separately
for application versatility.
• Cabinet – 1 blower section
• Wet media section (1 for 524’s - 2 for 628’s)
• Motor
Motor Sheave Selection
• Motor sheave
1. Determine the external static pressure of the air delivery system.
• Pulley-belt kit
2. Determine the motor (H.P., Voltage and Phase) required to deliver the design
airflow.
• Pump (one required for each media section)
NOTE: Motor starters, internal wiring and over-current protection are not supplied.
3. Determine the shaft size for the motor selected.
DIMENSIONS
Certified Air Delivery CFM at Various External Static Pressures
Inches Water Gauge. AMCA Licensed Ratings.
Operating
Weight
Belt information
.0
CFM
.0
RPM
.1
CFM
.1
RPM
.2
.2
Model
BHP
Quantity
Down
Side
Up
CFM RPM
524 with DM080 or 960 with UM080 — 8” Media
560
570
575
580
590
¾
1
1½
2
1
1
1
1
1
AX78
AX78
AX78
AX78
AX78
AX80
AX80
AX80
AX80
A82*
6390
7030
8050
8860
9050
298
329
376
414
422
6070
6760
7810
8640
9050
310
339
385
422
440
5710 320
6420 349
7530 394
8400 430
9050 459
3
524 with DM120 or 960 with UM120 — 12” Media
600
610
615
620
630
¾
1
1½
2
1
1
1
1
1
AX78
AX78
AX78
AX78
AX78
AX80
AX80
AX80
AX80
A82*
6250
6880
7880
8670
9050
298
328
376
414
422
5900
6560
7600
8420
9050
309
338
384
421
439
5550 321
6250 349
7320 393
8160 429
9050 458
3
628 with two DM080 or 980 with two UM080 — 8” Media
818
823
828
838
858
898
1
1½
2
3
5
1
1
1
2
2
2
A95*
A95*
A95*
A97
A97
A100*
A95*
A95*
A95*
A97
A97
A100*
A95
A95
A95
A95
A95
A95
9720
11130
12250
14020
16620
214
245
270
309
367
9320
10720
11890
13720
16390
18100
224
254
278
316
371
406
8650 235
10230 263
11460 286
13350 323
16080 378
18100 418
7½
628 with two DM120 or 980 with two UM120 — 12” Media
908
913
918
928
948
988
1
1½
2
3
5
1
1
1
2
2
2
A95*
A95*
A95*
A97
A97
A100*
A95*
A95*
A95*
A97
A97
A100*
A95
A95
A95
A95
A95
A95
9680
11080
12190
13950
16540
18100
216
248
273
312
370
406
9080
10540
11700
13510
16050
18100
226
256
280
318
375
409
8530 237
10080 265
11260 288
13130 325
15820 380
18100 428
7½
*Not supplied: MS524 coolers with a 3 HP motor require the purchase of one A82 belt
(AX78 belt included with unit). MD628 and MS628 coolers with 1, 11⁄2 or 2 HP motor
requires one A95 belt (two A97 belts included with unit). MD628 and MS628 coolers
with 71⁄2 HP motor require two A100 belts (two A97 belts included with unit).
Shaded Areas: Do not exceed listed RPM, water entrainment may result.
NOT RECOMMENDED
MD/MS 524 or UD/US 960 Sheave Selection
Motor HP Browning Bore
Part #
Blower RPM / Sheave Turns Open
MasterCool
Package #
5
4 ½
4
3 ½
3
2 ½
2
1 ½
1
½
0
Single Phase Motor Blower RPM @ 1725 Motor RPM / Sheave Turns Open
¾, 1
1VL34
1VL40
1VL40
1VL44
1VL44
1VP50
5/8
5/8
7/8
5/8
7/8
7/8
252
318
318
372
372
451
265
332
332
385
385
464
279
345
345
398
398
478
292
358
358
411
411
491
305
372
372
425
425
504
318
385
385
438
438
518
332
398
398
451
451
531
345
411
411
464
464
544
358
425
425
478
478
557
372
438
438
491
491
571
385
451
451
504
504
584
EL114
EL110
EL112
ESH2411
EL685
686
¾, 1
1½, 2
¾, 1
1½, 2
1½, 2
Three Phase Motor Blower RPM @ 1750 Motor RPM / Sheave Turns Open
¾
1VL34
1VL34
1VL40
5/8
7/8
5/8
7/8
5/8
7/8
11/8
7/8
256
256
323
323
377
377
377
458
458
269
269
337
337
390
390
390
471
471
283
283
350
350
404
404
404
485
485
296
296
363
363
417
417
417
498
498
310
310
377
377
431
431
431
512
512
323
323
390
390
444
444
444
525
525
337
337
404
404
458
458
458
538
538
350
350
417
417
471
471
471
552
552
363
363
431
431
485
485
485
565
565
377
377
444
444
498
498
498
579
579
390
390
458
458
512
512
512
592
592
EL114
EL116
EL110
EL112
ESH2411
EL685
684
1
¾
1, 1½, 2 1VL40
1VL44
1, 1½, 2 1VL44
¾
3
1VL44
1VP50
1½, 2
3
686
685
1VP50 11/8
.3
CFM
.3
RPM
.4
CFM
.4
RPM
.5
.5
.6
.6
.7
.7
.8
.8
.9
.9
1.0
1.0
CFM RPM
CFM RPM
CFM RPM
CFM RPM
CFM RPM
CFM RPM
5320
6080
7250
8140
9050
333
359
402
438
475
4850
5720
6930
7880
9050
348
371
412
446
491
4200 373
5280 386
6630 422
7590 455
9050 508
3670 391
4660 409
6240 434
7310 464
8820 516
3200 408
4160 426
5840 449
6970 475
8570 524
2770 426
3720 442
5260 471
6630 487
8330 532
2400 443
3310 458
4830 485
6140 505
8030 542
2060 460
2940 473
4440 499
5660 523
7730 552
5170
5910
7040
7920
9050
334
360
403
438
475
4720
5540
6740
7650
9050
349
373
413
447
492
4070 371
5130 386
6430 424
7380 456
8820 509
3590 390
4510 408
6070 435
7100 466
8570 518
3140 407
4060 425
5620 450
6760 476
8340 526
2740 423
3650 441
5110 469
6440 487
8080 534
2340 441
3270 455
4710 484
5930 505
7790 544
1980 458
2900 471
4350 498
5510 520
7520 553
8030
9700
10980
12960
15770
18100
246
273
294
330
384
431
7380
9160
10510 303
12540 337
15450 390
18030 440
260
283
6670 276
8600 294
10010 313
12130 345
15090 396
17760 445
5240 308
7990 307
9500 323
11690 353
14730 402
17440 450
4540 326
7030 329
8960 335
11250 362
14390 409
17130 455
3840 345
5890 354
8360 348
10800 371
14020 416
16820 461
3290 363
5290 371
6990 379
10330 382
13660 423
16520 467
2740 379
4690 387
6280 395
9810 393
13280 430
16210 473
7930
9570
10830
12760
15510
18010
248
274
297
332
386
437
7220
9030
10350 306
12370 340
15190 393
17730 443
261
285
6490 279
8420 296
9860 315
11960 348
14890 399
17450 448
5130 310
7810 310
9310 325
11530 356
14530 406
17190 454
4390 329
6930 330
8730 337
11070 364
14190 412
16900 459
3810 345
5760 358
8110 353
10580 373
13820 419
16590 465
3220 361
5130 374
6900 379
10070 384
13460 426
16300 471
2630 376
4600 388
6150 398
9630 396
13060 433
15970 477
• Power ratings (BHP) does not include drive losses.
• Belt tension should be 20 pounds for “A” section belts.
• Performance ratings include the effects of evaporative media in the airstream.
• Performance shown is for installation type B: Free Inlet, Ducted Outlet.
MD/MS/MU 628 or UD/US 980 Sheave Selection
Motor HP Browning Bore
Part #
Blower RPM / Sheave Turns Open
MasterCool
Package #
5
4 ½
4
3 ½
3
2 ½
2
1 ½
1
½
0
Single Phase Motor Blower RPM @ 1725 Motor RPM / Sheave Turns Open
1
1VL40
1VL40
1VL44
1VL44
1VP50
1VP50
5/8
7/8
5/8
7/8
5/8
7/8
230
230
268
268
326
326
240
240
278
278
335
335
249
249
288
288
345
345
259
259
297
297
355
355
268
268
307
307
364
364
278
278
316
316
374
374
288
288
326
326
383
383
297
297
335
335
393
393
307
307
345
345
403
403
316
316
355
355
412
412
326
326
364
364
422
422
EL110
EL112
ESH2411
EL685
693
1½, 2
1
1½, 2
1
1½, 2
686
Three Phase Motor Blower RPM @ 1750 Motor RPM / Sheave Turns Open
1, 1½, 2 1VL34
1, 1½, 2 1VL40
1, 1½, 2 1VL44
1, 1½, 2 1VP50
7/8
7/8
7/8
7/8
185
233
272
331
253
331
408
408
194
243
282
340
263
340
418
418
204
253
292
350
272
350
428
428
214
263
301
360
282
360
438
438
224
272
311
369
292
369
447
447
233
282
321
379
301
379
457
457
243
292
331
389
311
389
467
467
253
301
340
399
321
399
476
476
263
311
350
408
331
408
486
486
272
321
360
418
340
418
496
496
282
331
369
428
350
428
506
506
EL116
EL112
EL685
686
687
688
3
3, 5
5
2VP42 11/8
2VP50 11/8
2VP60 11/8
2VP60 13/8
689
692
7½
Project Submittal Sheet
Models MD/MS 524, MD/MS/MU 628 — U.L. Classified or UD/US 960, UD/US 980 — U.L. Listed
SHL*
Project
Location
Architect
Engineer
Contractor
Submitted By
Date
*Total design sensible heat load of project.
Blower Section – Motor – Motor Sheave – Pulley and Belt Kit
Blower Section
Qty. Model No.
Motor Specifications
Motor HP Volts
Kits
Motor Sheave
Ref. No.
Phase Amps
Belt
1
2
3
4
*NOTE: Each unit (ready to operate) consists of one blower section, one blower motor, one pulley-belt kit, one motor sheave.
Wet Section – Pump
Wet Section
Pump
Quantity
Ref. No.
Qty.
Model No.
Volts
Amps
GPM
1
2
3
4
*NOTE: Each wet section (ready to operate) consists of one wet module and one pump.
MasterCool evaporative coolers and components are designed and tested in accordance with
one or more of the following standards or agencies:
Air Delivery: Data published derived from tests conducted in accordance with A.M.C.A. (Air Move-
ment and Control Assoc.) Standard 210.
Sealant: Water Immersion: per ASTM D870. Flexibility: per ASTM D756. Corrosion Resistance: per
ASTM B117. Cycle Freeze/Thaw: per ASTM C117.
POLYBOND®: Corrosion Resistance: per ASTM B117. Pencil Hardness: per ASTM D3363. Adhesion:
per ASTM D3359. Impact Resistance: per ASTM D2794. Flexibility: per ASTM D522. Specular Gloss:
per ASTM D523. Surface Burning Characteristics of Building Materials (best rating) per U.L. 723
and ASTM E-84.
Your local MasterCool Representative of AdobeAir, Inc., is ready to
assist you in unit selection and application.
The world leader in evaporative cooling technology, AdobeAir, Inc. is continually involved in
the process of product improvement. AdobeAir, Inc. therefore reserves the right to change
specifications and/or design without prior notice. To obtain the most current product information
and/or specifications, visit the AdobeAir, Inc. web site at www.AdobeAir.com.
Pumps: Recognized under the U.L. component recognition program for the application – construc-
tion, thermal overload, running overload, and locked rotor protection.
Blower Motors: U.L. Recognized general purpose drip-proof.
Polymeric Materials: Tested in accordance with U.L. 94 and 746C. Covered by City of Los Angeles
Research Reports (C.O.L.A.) RR930224 (for all single phase applications), or RR930190 (for 3
phase applications) Electrical, and RR8141 Mechanical.
Manufactured in Mexico by:
AdobeAir, Inc.
1450 East Grant St.
Phoenix, AZ 85034
L900799A March 2007
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