BAC 3000C Model 3781C-2 Engineering Data (2011-07).pdf

S eries

C o o lin g T o w ers Series3000 Cooling Tower

Engineering Data

EngineeringData Single Cell

Double-Cell

Common Data

Dimensional Reference Drawings

Basinless Construction

Structural Support er ie s

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Notes :

1. Operating weight is based on the water level in the cold water basin at overflow height. If a lower operating weight is needed to meet design requirements, your local BAC Representative can provide additional assistance.

2. 31301C is supplied with a close coupled gear drive system as standard.

3. Models shipped with an optional gear drive or low sound fan may have heights up to 10.5" greater than shown. For units with Whisper Quiet Fans please contact your local BAC Representative for accurate height dimensions.

4. Dimensional reference drawings.

5. Nominal tons of cooling represents 3 GPM of water cooled from 95ºF to 85ºF at a 78ºF entering wet-bulb temperature.

Engineering Data Single Cell Unit

Model Number

Nomi nal Tonnage5

Motor

HP

Fan

(CFM)

Weights (lbs) Dimensions4

Operating1 Shipping Heaviest Sectio n L W H3 A

3240C 240 10 62,790 15,200 7,610 7,610

8' 5-3/4” 18' 0-1/2” 9' 3-5/8” 8' 7-3/4”3272C 272 15 71,340 15,320 7,730 7,730

3299C 299 20 78,110 15,380 7,790 7,790

3333C 325 20 85,720 16,190 8,060 8,060

8' 5-3/4” 18' 0-1/2” 10' 7-5/8” 9' 11-3/4”3358C 349 25 91,960 16,220 8,090 8,090

3379C 369 30 97,400 16,270 8,140 8,140

3412C 399 25 103,700 19,000 9,390 9,390 9' 9-1/4” 20' 0-1/2” 10' 9-1/8” 9' 11-3/4”

3436C 422 30 109,830 19,050 9,440 9,440

3455C 434 25 112,250 19,770 9,710 9,710

9' 9-1/4” 20' 0-1/2” 12' 1-1/8” 11' 3-3/4”3482C 459 30 118,880 19,820 9,760 9,760

3527C 502 40 130,160 19,980 9,920 9,920

3473C 458 25 118,870 22,730 10,900 10,900 11' 9-3/4” 21' 6-1/2” 10' 10-1/8” 9' 11-3/4”

3501C 485 30 125,900 22,780 10,950 10,950

3552C 527 30 136,170 25,150 11,510 11,510

11' 9-3/4” 21' 6-1/2” 12' 2-1/8” 11' 3-3/4” 3604C 577 40 149,090 25,310 11,670 11,670

3648C 619 50 159,950 25,320 11,680 11,680

3672C 642 60 166,020 26,080 12,440 12,440 12' 8-1/8”

3728C 728 40 178,860 30,700 14,460 8,430

11' 9-3/4” 21' 6-1/2” 16' 4-7/8” 15' 5-1/2”3781C 781 50 191,890 30,860 14,620 8,590

3828C 828 60 203,230 30,870 14,630 8,600

3872C 846 50 206,630 33,700 15,380 8,600

11' 9-3/4” 21' 6-1/2” 19' 0-7/8” 18' 1-1/2”3923C 896 60 218,840 33,910 15,590 8,810

3970C 941 75 230,080 34,870 16,550 9,770

3985C 985 60 229,950 36,500 16,360 9,210 11' 9-3/4” 21' 6-1/2” 21' 8-7/8” 20' 9-1/2”

31056C 1,056 75 246,700 36,590 16,440 9,290

3583C 557 25 143,950 32,890 15,650 15,650

13' 11-1/8” 24' 0-1/2” 12' 3-1/8” 11' 3-3/4” 3618C 591 30 152,460 32,940 15,700 15,700

3676C 646 40 166,920 33,100 15,860 15,860

3725C 693 50 179,080 33,110 15,870 15,870

31132C 1,105 75 267,880 43,080 20,830 11,430 13' 11-1/8” 24' 0-1/2” 19' 8-7/8” 18' 1-1/2”

31213C 1,213 75 282,010 45,760 21,530 12,140 13' 11-1/8” 24' 0-1/2” 22' 4-7/8” 20' 9-1/2”

31301C2 1,301 100 302,580 47,680 23,450 13,230 13' 11-1/8” 24' 0-1/2 22' 8-1/4” 20' 9-1/2”

Do not use for constructi on. Refer to factory certified dimensions.

Copyright Baltimore Aircoil Company 2009 ie s

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Notes:

1. Operating weight is based on the water level in the cold water basin at overflow height. If a lower operating weight is needed to meet design requirements, your local BAC Representative can provide additional assistance.

2. 31301C-2 is supplied with a close coupled gear drive system as standard.

3. Models shipped with an optional gear drive or low sound fan may have heights up to 10.5" greater than shown. For units with Whisper Quiet Fans please contact your local BAC Representative for accurate height dimensions.

4. Dimensional reference drawings.

5. Nominal tons of cooling represents 3 GPM of water cooled from 95ºF to 85ºF at a 78ºF entering wet-bulb temperature.

Double Cell Units

Model Number

Nomi nal Tonnage5

Motor

HP

Fan

(CFM)

Weights (lbs) Dimensions4

Operating 1 Shipping Heaviest Sectio n L W H3 A

3240C-2 480 (2) 10 125,580 30,400 15,200 7,610

17' 2” 18' 0-1/2” 9' 3-5/8” 8' 7-3/4”3272C-2 544 (2) 15 142,680 30,640 15,460 7,730

3299C-2 598 (2) 20 156,220 30,760 15,580 7,790

3333C-2 650 (2) 20 171,440 32,380 16,120 8,060

17' 2” 18' 0-1/2” 10' 7-5/8” 9' 11-3/4”3358C-2 698 (2) 25 183,920 32,440 16,180 8,090

3379C-2 738 (2) 30 194,800 32,540 16,280 8,140

3412C-2 798 (2) 25 207,400 38,000 18,780 9,390 19' 9” 20' 0-1/2” 10' 9-1/8” 9' 11-3/4”

3436C-2 844 (2) 30 219,660 38,100 18,880 9,440

3455C-2 868 (2) 25 224,500 39,540 19,420 9,710

19' 9” 20' 0-1/2” 12' 1-1/8” 11' 3-3/4”3482C-2 918 (2) 30 237,760 39,640 19,520 9,760

3527C-2 1,004 (2) 40 260,320 39,960 19,840 9,920

3473C-2 916 (2) 25 237,740 45,460 21,800 10,900 23' 10” 21' 6-1/2” 10' 10-1/8” 9' 11-3/4”

3501C-2 970 (2) 30 251,800 45,560 21,900 10,950

3552C-2 1,054 (2) 30 272,340 50,300 23,020 11,510

23' 10” 21' 6-1/2” 12' 2-1/8” 11' 3-3/4” 3604C-2 1,154 (2) 40 298,180 50,620 23,340 11,670

3648C-2 1,238 (2) 50 319,900 50,640 23,360 11,680

3672C-2 1,284 (2) 60 332,040 52,160 24,880 12,440 12' 8-1/8”

3728C-2 1,456 (2) 40 357,720 61,400 28,920 8,430

23' 10” 21' 6-1/2” 16' 4-7/8” 15' 5-1/2”3781C-2 1,562 (2) 50 383,780 61,720 29,240 8,590

3828C-2 1,656 (2) 60 406,460 61,740 29,260 8,600

3872C-2 1,692 (2) 50 413,260 67,400 30,760 8,600

23' 10” 21' 6-1/2” 19' 0-7/8” 18' 1-1/2”3923C-2 1,792 (2) 60 437,680 67,820 31,180 8,810

3970C-2 1,882 (2) 75 460,160 69,740 33,100 9,770

3985C-2 1,970 (2) 60 459,900 73,000 32,720 9,210 23' 10” 21' 6-1/2” 21' 8-7/8” 20' 9-1/2”

31056C-2 2,112 (2) 75 493,400 73,180 32,880 9,290

3583C-2 1,144 (2) 25 287,900 65,780 31,300 15,650

28' 0-3/4” 24' 0-1/2” 12' 3-1/8” 11' 3-3/4” 3618C-2 1,182 (2) 30 304,920 65,880 31,400 15,700

3676C-2 1,292 (2) 40 333,840 66,200 31,720 15,860

3725C-2 1,386 (2) 50 358,160 66,220 31,740 15,870

31132C-2 2,210 (2) 75 535,760 86,160 41,660 11,430 28' 0-3/4” 24' 0-1/2” 19' 8-7/8” 18' 1-1/2”

31213C-2 2,426 (2) 75 564,020 91,520 43,060 12,140 28' 0-3/4” 24' 0-1/2” 22' 4-7/8” 20' 9-1/2”

31301C-22 2,602 (2) 100 605,160 95,360 46,900 13,230 28' 0-3/4” 24' 0-1/2” 22' 8-1/4” 20' 9-1/2”

Engineering Data

Do not use for cons tructi on. Refer to factory certified dimensions.

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Engineering Data

Notes :

1. The specific size of the inlet and outlet connection may vary with the design cooling water flow rate.

2. Unless otherwise indicated, all connections 3” and smaller are male pipe thread, and connections 4” and larger are beveled for welding and grooved to suit a mechanical coupling.

3. On double cell units, connections are the same size but are located on both ends of the unit.

Model Number

Dimensions Connectio n Sizes 1,3

B C D E F G J Make-Up Water

Top Inlet

Single Inlet Out let

3240C 3272C 3299C

8-1/16” 5' 8-1/4” 10' 5-1/2” 7' 1-1/4” 1/4” 4' 2-7/8” 8' 8-1/4” 1” (2) 6” 8” 8”

3333C 3358C 3379C

8-1/16” 6' 1-1/4” 10' 5-1/2” 7' 1-1/4” 1/4” 4' 2-7/8” 8' 8-1/4” 1” (2) 6” 8” 8”

3412C 3436C

8-1/16” 6' 1-1/4” 11' 5-1/2” 8' 1-1/4” 1-1/4” 4' 10-5/8” 9' 0-3/4” 1-1/2” (2) 6” 8” 8”

3455C 3482C 3527C

9-1/8” 6' 6-3/4” 11' 5-1/2” 8' 1-1/4” 1-1/4” 4' 10-5/8” 9' 0-3/4” 1-1/2” (2) 8” 10” 10”

3473C 3501C

9-1/8” 6'-6-3/4” 12' 2-1/2” 8' 10-1/4” 1-1/4” 5' 10-7/8” 12' 0-1/4” 1-1/2” (2) 8” 10” 10”

3552C 3604C 3648C 3672C

9-1/8” 6' 6-3/4” 12' 2-1/2” 8' 10-1/4” 1-1/4” 5' 10-7/8” 12' 0-1/4” 1-1/2” (2) 8” 10” 10”

3728C 3781C 3828C

9-1/8” 10' 4-1/2” 12' 2-1/2” 8' 10-1/4” 1-1/4” 5' 10-7/8” 12' 0-1/4” 1-1/2” (2) 8” 12” 12”

3872C 3923C 3970C

9-1/8” 13' 0-1/2” 12' 2-1/2” 8' 10-1/4” 1-1/4” 5' 10-7/8” 12' 0-1/4” 1-1/2” (2) 8” 12” 12”

3985C 31056C

9-1/8” 15' 8-1/2” 12' 2-1/2” 8' 10-1/4” 1-1/4” 5' 10-7/8” 12' 0-1/4” 1-1/2” (2) 8” 12” 12”

3583C 3618C 3676C 3725C

9-1/8” 6' 6-3/4” 13' 5-1/2” 10' 1-1/4” 5/8” 6' 11-9/16” 14' 1-5/8” 1-1/2” (2) 8” 10” 10”

31132C 9-5/8” 13' 0-1/2” 13' 5-1/2” 10' 1-1/4” 5/8” 6' 11-9/16” 14' 1-5/8” 2” (2) 10” 14” 14”

31213C 31301C

9-5/8” 15' 8-1/2” 13' 5-1/2” 10' 1-1/4” 5/8” 6' 11-9/16” 14' 1-5/8” 2” (2) 10” 14” 14” ie s

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OPTIONAL

SINGLE WATER INLET

W/2

STANDARD

DUAL TOP

WATER INLETS

DUAL TOP

WATER INLETS

DUAL TOP

WATER INLETS

W

L 2 1/2”

E

C

2'-10"

3'-8 7/8"3'-8 7/8"

TOP OF FAN GUARD

H

A

L

G

GG J

F FF

3" OVERFLOW

2" DRAIN

10"

D

C L

C L

3"

C L

C L

C L

ACCESS DOOR BOTH ENDS

MAKE-UP

B

NOTE

Double Cell UnitSingle Cell Unit

Notes:

3728C thru 31056C and 31132C thru 31301C ship in two sections per cell.

The top section is the heaviest and tallest.

Top section heights are:

• 3728C thru 3970C: 10' 3-1/8"

• 3985C thru 31056C: 11' 7-1/8"

• 31132C: 10' 11-1/8"

• 31213C: 12' 3-1/8"

• 31301C: 12' 6-1/2"

Dimensional Reference Drawings ie s

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Concrete Basin Engineering Data for Optional Basinless Units

Notes:

1. Purchaser to design, construct and furnish basin

(including anchor bolts) in accordance with requirements given. Purchaser must also supply sump, overflow, drain, cleanout and water make-up to suit requirements.

2. All anchor bolts shall be 3/4” diameter, 1-1/2” projection (±1/4”), fully threaded. Bolt to have one nut and washer. Anchor bolt and column bearing point locations and elevations must be maintained ±1/8”.

3. Pier dimensions shown are minimum bearing surfaces required for the tower structure and do not include corner chamfers on the concrete piers.

4. Fill to be located below the operating water level.

(see section A-A, next page)

5. Maximum operating weight does not include concrete basin or water retained in the basin.

Single Cell Unit

Model Number

Operatin g Load

Vertic al (LBS)

Maximum Operating Weight (LBS) A B C D

3240C 2,420 9,690

9' 1-3/4” 18' 4-1/2” 9' 2-1/4” N/A3272C 2,460 9,820

3299C 2,470 9,880

3333C 2,670 10,670

9' 1-3/4” 18' 4-1/2” 9' 2-1/4” N/A3358C 2,680 10,700

3379C 2,690 10,750

3412C 3,130 12,510 10' 5-1/4” 20' 4-1/2” 10' 2-1/4” N/A

3436C 3,140 12,560

3455C 3,350 13,410

10' 5-1/4” 20' 4-1/2” 10' 2-1/4” N/A3482C 3,370 13,460

3527C 3,410 13,620

3473C 3,770 15,070 12' 5-3/4” 21' 10-1/2” 10' 11-1/4” N/A

3501C 3,780 15,120

3552C 4,100 16,410

12' 5-3/4” 21' 10-1/2” 10' 11-1/4” N/A 3604C 4,140 16,570

3648C 4,150 16,580

3672C 4,450 17,780

3728C 5,640 22,570

12' 5-3/4” 21' 10-1/2” 10' 11-1/4” N/A3781C 5,650 22,580

3828C 5,700 22,800

3872C 6,390 25,540

12' 5-3/4” 21' 10-1/2” 10' 11-1/4” N/A3923C 6,440 25,760

3970C 6,760 27,040

3985C 7,690 30,750 12' 5-3/4” 21' 10-1/2” 10' 11-1/4” N/A

31056C 7,710 30,840

3583C 3,100 18,630

14' 7-1/8” 24' 4-1/2” 7' 8-1/4” 9' 0” 3618C 3,110 18,680

3676C 3,140 18,840

3725C 3,140 18,850

31132C 4,940 29,620 14' 7-1/8” 24' 4-1/2” 7' 8-1/4” 9' 0”

31213C 5,440 32,630 14' 7-1/8” 24' 4-1/2” 7' 8-1/4” 9' 0”

31301C 5,820 34,920 ie s

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Models 3240C thru Models 31056C

Models 3583C thru Models 31301C

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The recommended support arrangement for the Series 3000 Cooling Tower consists of parallel I-beams positioned as shown on the drawings. Besides providing adequate support, the steel also serves to raise the unit above any solid foundation to assure access to the bottom of the tower. The Series 3000 Cooling Tower may also be supported on columns at the anchor bolt locations shown in Plan A or Plan C.

A minimum bearing surface of 12” x 12” (304.8mm x 304.8mm) must be provided under each of the concentrated load points (See Note 6, next page). To support a Series 3000 Cooling Tower on columns, with an alternate steel support arrangement, or the optional upgraded seismic and wind rated unit, consult your local BAC Representative.

See notes, next page.

Structural Support

Model Number

Weights (lbs) Dimensions

Operating1 Shipping1,2

WT. at Bolt Hole

Locatio ns L1 L2 W A B C D E

3240C 15,200 7,610 3,800

8' 5-3/4” 17' 2” 18' 0-1/2” 9' 4” 9' 4” 1-1/8” 8' 3-1/2” 4-3/4”3272C 15,320 7,730 3,830

3299C 15,380 7,790 3,845

3333C 16,190 8,060 4,048

8' 5-3/4” 17' 2” 18' 0-1/2” 9' 4” 9' 4” 1-1/8” 8' 3-1/2” 4-3/4”3358C 16,220 8,090 4,055

3379C 16,270 8,140 4,068

3412C 19,000 9,390 4,750 9' 9-1/4” 19' 9” 20' 0-1/2” 11' 4” 11' 4” 1-1/8” 9' 7” 4-3/4”

3436C 19,050 9,440 4,763

3455C 19,770 9,710 4,943

9' 9 -1/4” 19' 9” 20' 0-1/2” 11' 4” 11' 4” 1-1/8” 9' 7” 4-3/4”3482C 19,820 9,760 4,955

3527C 19,980 9,920 4,995

3473C 22,730 10,900 5,683 11' 9-3/4” 23' 10” 21' 6-1/2” 12' 10” 12' 10” 1-1/8” 11' 7-1/2” 4-3/4”

3501C 22,780 10,950 5,695

3552C 25,150 11,510 6,288

11' 9-3/4” 23' 10” 21' 6-1/2” 12' 10” 12' 10” 1-1/8” 11' 7-1/2” 4-3/4” 3604C 25,310 11,670 6,328

3648C 25,320 11,680 6,330

3672C 26,080 12,440 6,520

3728C 30,700 14,460 7,675

11' 9-3/4” 23' 10” 21' 6-1/2” 12' 10” 12' 10” 1-1/8” 11' 7-1/2” 4-3/4”3781C 30,860 14,620 7,715

3828C 30,870 14,630 7,718

3872C 33,700 15,380 8,425

11' 9-3/4” 23' 10” 21' 6-1/2” 12' 10” 12' 10” 1-1/8” 11' 7-1/2” 4-3/4”3923C 33,910 15,590 8,478

3970C 34,870 16,550 8,718

3985C 36,500 16,360 9,125 11' 9-3/4” 23' 10” 21' 6-1/2” 12' 10” 12' 10” 1-1/8” 11' 7-1/2” 4-3/4”

31056C 36,590 16,440 9,148

3583C 32,890 15,650 8,223

13' 11-1/8” 28' 0-3/4” 24' 0-1/2” 15' 4” 15' 4” 1-11/16” 13' 7-3/4” 5-7/8” 3618C 32,940 15,700 8,235

3676C 33,100 15,860 8,275

3725C 33,110 15,870 8,278

31132C 43,080 20,830 10,770 13' 11-1/8” 28' 0-3/4” 24' 0-1/2” 15' 4” 15' 4” 1-11/16” 13' 7-3/4” 5-7/8”

31213C 45,760 21,530 11,440 13' 11-1/8” 28' 0-3/4” 24' 0-1/2” 15' 4” 15' 4” 1-11/16” 13' 7-3/4” 5-7/8”

31301C 47,680 23,450 11,920 ie s

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Notes:

1. Weights are for a single cell. To obtain weights for multi-cell units, multiply by the number of cells.

2. Operating weight and weight loading are for a single cell tower with water at overflow level in the cold water basin.

3. Support beams and anchor bolts to be selected and installed by others.

4. All support steel must be level at the top.

5. Beams must be selected in accordance with accepted structural practice. Maximum deflection of beam under unit to be 1/360 of span, not to exceed 1/2”.

6. If point vibration isolation is used, the isolators must be located under the support steel, not between the support steel and the cooling towers.

Double Cell Unit

Plan A Plan B

Plan C

Single Cell Unit

L

4’ 4-1/4”

ADDITIONAL

ANCHOR BOLT

MODELS 3728C

THRU 31301C

WEIGHT GIVEN

ON PAGE 7 IS

AT MIDPOINT

BETWEEN TWO

LOCATIONS