E ngineering D ata

PT2 Cooling Towers

contents
1

Dimensional engineering data

Performance engineering data

Structural Support

Alternative Structural Support

D imensional

Engineering Data
2 Clean Out

Water In

H
Water Out

B
A

W
Face A

Face C
Single Cell Face C Configuration for Models PT2-0412

Face A for Models PT2-0412

Nominal Weights (lbs)

Dimensions

Operating{2}

Shipping

Heaviest
Section

PT2-0412A-1*1

5,260

2,850

2,080

11-11 3/4

4-0

10-3 7/8

3-2 3/8

6-4 3/8

PT2-0412A-2*1

5,500

3,090

2,320

11-11 3/4

4-0

11-3 7/8

3-2 3/8

7-4 3/8

Model Number{1}

Notes:
1. Data corresponds to all available motors for this model.
2. 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.

Do not use for construction. Refer to factory certified dimensions. This catalog includes data current at
the time of publication, which should be reconfirmed at the time of purchase.

Q u estions ? C all 4 1 0 . 7 9 9 . 6 2 0 0 or visit W W W . B A L T I M O R E A I R C O I L . C O M

Water In (Qty. 2)

2 Clean Out

Water In

Water Out

A
Cell 1

1-7 1/4

F
L

Single Cell Face C Configuration for Models

PT2-0709, PT2-0809, and PT2-0812

Face A for Models PT2-0709, PT2-0809, and

PT2-0812 (For 2-Cell and 3-Cell Configurations,
Connections Typical at Each End)

Cell 2

Face C 2-Cell Configuration for Models

PT2-0709, PT2-0809, and PT2 0812

Water In (Qty. 2)

Water In (Qty. 3)

2 Clean Out

Water Out

H
B

Water In

Water Out

1-7 1/4

Cell
Cell1 3

Cell 2

Cell 1

Face A 3-Cell Configuration for Models PT2-0709, PT2-0809,

and PT2-0812 (Connections Typical at Each End)

F
L

Face C 3-Cell Configuration for Models

PT2-0709, PT2-0809, and PT2-0812

Nominal Weights (lbs)

Dimensions

Operating{2}

Shipping

Heaviest
Section

PT2-0709A-1*1

6,030

3,270

2,340

8-11 3/4

7-3 1/4

10-7 7/8

3-8 7/8

6-9 1/4

PT2-0709A-2*1

6,320

3,560

2,630

8-11 3/4

7-3 1/4

11-7 7/8

3-8 7/8

7-9 1/4

PT2-0709A-3*1

6,610

3,850

2,920

8-11 3/4

7-3 1/4

12-7 7/8

3-8 7/8

8-9 1/4

PT2-0709A-1*2

12,180

6670

2,340

18-0 1/2

7-3 1/4

11-7 7/8

4-8 7/8

7-9 1/4

9-0 3/4

PT2-0709A-2*2

12,760

7,250

2,630

18-0 1/2

7-3 1/4

12-7 7/8

4-8 7/8

8-9 1/4

9-0 3/4

PT2-0709A-3*2

13,350

7,840

2,920

18-0 1/2

7-3 1/4

13-7 7/8

4-8 7/8

9-9 1/4

9-0 3/4

PT2-0709A-1*3

18,450

10,180

2,340

27-1 1/4

7-3 1/4

12-7 7/8

5-8 7/8

8-9 1/4

9-0 3/4

PT2-0709A-2*3

19,330

11,060

2,630

27-1 1/4

7-3 1/4

13-7 7/8

5-8 7/8

9-9 1/4

9-0 3/4

PT2-0709A-3*3

20,580

12,310

2,920

27-1 1/4

7-3 1/4

14-7 7/8

5-8 7/8

10-9 1/4

9-0 3/4

PT2-0809A-1*1

6,700

3,520

2,570

8-11 3/4

8-5 3/4

10-9 3/8

3-8 7/8

6-10 3/4

PT2-0809A-2*1

7,000

3,820

2,860

8-11 3/4

8-5 3/4

11-9 3/8

3-8 7/8

7-10 3/4

PT2-0809A-3*1

7,300

4,120

3,150

8-11 3/4

8-5 3/4

12-9 3/8

3-8 7/8

8-10 3/4

PT2-0809A-1*2

13,550

7,180

2,570

18-0 1/2

8-5 3/4

11-9 3/8

4-8 7/8

7-10 3/4

9-0 3/4

PT2-0809A-2*2

14,140

7,780

2,860

18-0 1/2

8-5 3/4

12-9 3/8

4-8 7/8

8-10 3/4

9-0 3/4

PT2-0809A-3*2

14,740

8,380

3,160

18-0 1/2

8-5 3/4

13-9 3/8

4-8 7/8

9-10 3/4

9-0 3/4

PT2-0809A-1*3

20,530

10,980

2,570

27-1 1/4

8-5 3/4

12-9 3/8

5-8 7/8

8-9 1/4

9-0 3/4

PT2-0809A-2*3

21,420

11,880

2,860

27-1 1/4

8-5 3/4

13-9 3/8

5-8 7/8

8-9 1/4

9-0 3/4

PT2-0809A-3*3

22,710

13,150

3,160

27-1 1/4

8-5 3/4

14-9 3/8

5-8 7/8

10-10 3/4

9-0 3/4

PT2-0812A-1*1

8,410

4,170

2,900

11-11 3/4

8-5 3/4

11-7 3/8

4-1 3/8

7-3 1/4

PT2-0812A-2*1

8,740

4,490

3,190

11-11 3/4

8-5 3/4

12-7 3/8

4-1 3/8

8-3 1/4

PT2-0812A-3*1

9,060

4,810

3,480

11-11 3/4

8-5 3/4

13-7 3/8

4-1 3/8

9-3 1/4

PT2-0812A-1*2

17,010

8,520

2,900

24-0 1/2

8-5 3/4

12-7 3/8

5-1 3/8

8-3 1/4

12-0 3/4

PT2-0812A-2*2

17,650

9,160

3,190

24-0 1/2

8-5 3/4

13-7 3/8

5-1 3/8

9-3 1/4

12-0 3/4

PT2-0812A-3*2

18,300

9,810

3,480

24-0 1/2

8-5 3/4

14-7 3/8

5-1 3/8

10-3 1/4

12-0 3/4

PT2-0812A-1*3

25,782

13,043

2,900

36-1 1/4

8-5 3/4

13-7 3/8

6-1 3/8

9-3 1/4

12-0 3/4

Model Number{1}

Cell 2

PT2-0812A-2*3

26,743

14,005

3,190

36-1 1/4

8-5 3/4

14-7 3/8

6-1 3/8

10-3 1/4

12-0 3/4

PT2-0812A-3*3

28,084

15,346

3,480

36-1 1/4

8-5 3/4

15-7 3/8

6-1 3/8

11-3 1/4

12-0 3/4
ENGINEERING DATA: PT2 COOLING TOWERS

P T 2 D I M E N S I O N A L E N G I N E E R I N G D ATA C O N T I N U E D

Water In (Qty. 2)
2 Clean Out

H
Water In

Water Out

B
A

Cell 1

F
L

L
Face C Single Cell Configuration for Models
PT2-1009, PT2-1012, and PT2-1212

Face A for Models PT2-1009, PT2-1012,

and PT2-1212 (For 2-Cell and 3-Cell
Configurations, Connections Typical at Each End)

Cell 2

Face C 2-Cell Configuration for Models

PT2-1009, PT2-1012, and PT2-1212

Water In (Qty. 3)

H
B

Water Out

Cell 2

Cell 1

Cell 3

F
L

Face C 3-Cell Configuration for Models PT2-0709, PT2-0809, and PT2-0812

Water In (Qty. 2)

H
Water Out (Qty. 4)

B
A
Cell 1, Face A

Cell 3, Face B

W
Face A/B Quad Configuration for Models
PT2-1009, PT2-1012, and PT2-1212,
Connections Typical at Each End
3

Q u estions ? C all 4 1 0 . 7 9 9 . 6 2 0 0 or visit W W W . B A L T I M O R E A I R C O I L . C O M

Cell 2

Cell 1

L
Face C Quad Configuration for Models
PT2-1009, PT2-1012, and PT2-1212,
Connections Typical at Each End

Nominal Weights (lbs)

Dimensions

Model Number{1}

Operating{2}

Shipping

Heaviest
Section

PT2-1009A-1*1

7,790

4,100

3,110

8-11 3/4

9-10

12-11 5/8

4-1 3/8

7-2 1/4

PT2-1009A-2*1

8,100

4,410

3,400

8-11 3/4

9-10

13-11 5/8

4-1 3/8

8-2 1/4

PT2-1009A-3*1

8,410

4,720

3,700

8-11 3/4

9-10

14-11 5/8

4-1 3/8

9-2 1/4

PT2-1009A-1*2

15,730

8,350

3,110

18-0 1/2

9-10

13-11 5/8

5-1 3/8

8-2 1/4

PT2-1009A-2*2

16,350

8,970

3,400

18-0 1/2

9-10

14-11 5/8

5-1 3/8

9-2 1/4

9-0 3/4

PT2-1009A-3*2

16,980

9,600

3,700

18-0 1/2

9-10

15-11 5/8

5-1 3/8

10-2 1/4

9-0 3/4

9-0 3/4

PT2-1009A-1*3

23,836

12,764

3,110

27-1 1/4

9-10

14-11 5/8

6-1 3/8

9-2 1/4

9-0 3/4

PT2-1009A-2*3

24,763

13,691

3,400

27-1 1/4

9-10

15-11 5/8

6-1 3/8

10-2 1/4

9-0 3/4

PT2-1009A-3*3

26,070

14,998

3,700

27-1 1/4

9-10

16-11 5/8

6-1 3/8

11-2 1/4

9 -0 3/4

PT2-1009A-1*4

31,976

17,213

3,110

18-0 1/2

19-9

16-10 3/8

7-1 3/8

10-2 1/4

PT2-1009A-2*4

33,344

18,581

3,400

18-0 1/2

19-9

17-10 3/8

7-1 3/8

11-2 1/4

PT2-1009A-3*4

35,087

20,324

3,700

18-0 1/2

19-9

18-10 3/8

7-1 3/8

12-2 1/4

PT2-1012A-1*1

10,120

5,330

4,050

11-11 3/4

9-10

13-2 5/8

4-4 3/8

7-5 1/4

PT2-1012A-2*1

10,530

5,730

4,430

11-11 3/4

9-10

14-2 5/8

4-4 3/8

8-5 1/4

PT2-1012A-3*1

10,930

6,130

4,810

11-11 3/4

9-10

15-2 5/8

4-4 3/8

9-5 1/4

PT2-1012A-1*2

20,450

10,860

4,050

24-0 1/2

9-10

14-2 5/8

5-4 3/8

8-5 1/4

12-0 3/4

PT2-1012A-2*2

21,260

11,660

4,430

24-0 1/2

9-10

15-2 5/8

5-4 3/8

9-5 1/4

12-0 3/4

PT2-1012A-3*2

22,060

12,470

4,810

24-0 1/2

9-10

16-2 5/8

5-4 3/8

10-5 1/4

12-0 3/4

PT2-1012A-1*3

30,987

16,593

4,050

36-1 1/4

9-10

15-2 5/8

6-4 3/8

9-5 1/4

12-0 3/4

PT2-1012A-2*3

32,192

17,799

4,430

36-1 1/4

9-10

16-2 5/8

6-4 3/8

10-5 1/4

12-0 3/4

PT2-1012A-3*3

33,891

19,498

4,810

36-1 1/4

9-10

17-2 5/8

6-4 3/8

11-5 1/4

12-0 3/4

PT2-1012A-1*4

41,568

22,377

4,050

24-0 1/2

19-9

17-10 3/8

7-4 3/8

10-5 1/4

PT2-1012A-2*4

43,347

24,156

4,430

24-0 1/2

19-9

18-10 3/8

7-4 3/8

11-5 1/4

PT2-1012A-3*4

45,613

26,421

4,810

24-0 1/2

19-9

19-10 3/8

7-4 3/8

12-5 1/4

PT2-1212A-1*1

11,210

5,970

4,170

11-11 3/4

11-10

13-10 3/8

4-10 3/8

7-11 1/4

PT2-1212A-2*1

11,760

6,520

4,720

11-11 3/4

11-10

14-10 3/8

4-10 3/8

8-11 1/4

PT2-1212A-3*1

12,310

7,070

5,270

11-11 3/4

11-10

15-10 3/8

4-10 3/8

9-11 1/4

PT2-1212A-1*2

22,550

12,070

4,170

24-0 1/2

11-10

14-10 3/8

5-10 3/8

8-11 1/4

12 -0 3/4

PT2-1212A-2*2

23,670

13,180

4,720

24-0 1/2

11-10

15-10 3/8

5-10 3/8

9-11 1/4

12-0 3/4

PT2-1212A-3*2

24,770

14,280

5,270

24-0 1/2

11-10

16-10 3/8

5-10 3/8

10-11 1/4

12 -0 3/4

PT2-1212A-1*3

34,044

18,320

4,170

36-1 1/4

11-10

15-10 3/8

6-10 3/8

9-11 1/4

12 -0 3/4

PT2-1212A-2*3

35,704

19,980

4,720

36-1 1/4

11-10

16-10 3/8

6-10 3/8

10-11 1/4

12-0 3/4

PT2-1212A-3*3

37,364

21,640

5,270

36-1 1/4

11-10

17-10 3/8

6-10 3/8

11-11 1/4

12-0 3/4

PT2-1212A-1*4

45,541

24,574

4,170

24-0 1/2

23-9

17-10 3/8

7-10 3/8

10-11 1/4

PT2-1212A-2*4

47,754

26,787

4,720

24-0 1/2

23-9

18-10 3/8

7-10 3/8

11-11 1/4

PT2-1212A-3*4

49,967

29,000

5,270

24-0 1/2

23-9

19-10 3/8

7-10 3/8

12-11 1/4

Notes:
1. Data corresponds to all available motors for this model.
2. 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.

Do not use for construction. Refer to factory certified dimensions. This catalog includes data current at
the time of publication, which should be reconfirmed at the time of purchase.

ENGINEERING DATA: PT2 COOLING TOWERS

P T 2 D I M E N S I O N A L E N G I N E E R I N G D ATA C O N T I N U E D

2 Clean Out

H
Water In

Water Out

Water In (Qty. 2)

B
A
Cell 1

Cell 1

Face A for PT2-1218A-**1

and PT2-1218A-**2
(For 2-Cell Configurations,
Connections Typical at Each End)

Cell 2

F
L

Face C for Single Cell Configuration for Models

PT2-1218A-**1

Face C 2-Cell Configuration for Models PT2-1218A-**2

L
Face C

Cell 2

Face A

Face D

Face B

Face C

Face D

Face B

Face B

Face A

Face A

Cell 1

Face D

Face A

Face D

Face B

Cell 1

Face C

Plan View of 2-Cell Configuration for Models PT2-1218A-**2

Cell 2
Face C
Plan View of 2-Cell Configuration for Models PT2-1218A-**T

Water Out (Qty. 2)

Water In (Qty. 2)

B
A
Cell 1, Face A

W
Face A/B of 2-Cell Configuration for Models PT2-1218A-**T
(Connections Typical at Each End)

Cell 2, Face C

Cell 2, Face B

Q u estions ? C all 4 1 0 . 7 9 9 . 6 2 0 0 or visit W W W . B A L T I M O R E A I R C O I L . C O M

L
Face C of 2-Cell Configuration for Models PT2-1218A-**T

2 Clean Out

Water In (Qty. 3)

H
Water Out (Qty. 3)

B
A
Cell 1

Cell 1

Cell 2

Cell 3

F
L

Face A 3-Cell Configuration for

Models PT2-1218A-**3,
Connections Typical at Each End

Face C 3-Cell Configuration for Models PT2-1218A-**3

Water Out (Qty. 4)

Water In (Qty. 4)

B
A
Cell 1, Face A

Cell 2, Face B

Cell 3

Cell 4

Face A/B Quad Configuration for Models PT2-1218A-**4,

Connections Typical at Each End

Face C Quad Configuration for Models PT2-1218A-**4 ,

Connections Typical at Each End

Nominal Weights (lbs)

Dimensions

Model Number{1}

Operating{2}

Shipping

Heaviest
Section

PT2-1218A-1*1

20,190

10,800

7,090

17-11 3/4

11-10

14'-8 1/8

5-9 5/8

8-9 5/8

PT2-1218A-2*1

20,930

11,540

7,830

17-11 3/4

11-10

15'-8 1/8

5-9 5/8

9-9 5/8

PT2-1218A-3*1

21,670

12,280

8,570

17-11 3/4

11-10

16'-8 1/8

5-9 5/8

10-9 5/8

PT2-1218A-1*2

40,600

21,820

7,090

36-0 1/2

11-10

15'-8 1/8

6-9 5/8

9-9 5/8

18-0 3/4

PT2-1218A-2*2

42,080

23,300

7,830

36-0 1/2

11-10

16'-8 1/8

6-9 5/8

10-9 5/8

18-0 3/4

PT2-1218A-3*2

43,560

24,780

8,570

36-0 1/2

11-10

17'-8 1/8

6-9 5/8

11-9 5/8

18-0 3/4

PT2-1218A-1*T

40,720

21,940

7,090

17-11 3/4

23-9

16'-2 1/8

7-3 5/8

10-3 5/8

PT2-1218A-2*T

42,200

23,420

7,830

17-11 3/4

23-9

17'-2 1/8

7-3 5/8

11-3 5/8

PT2-1218A-3*T

43,680

24,900

8,570

17-11 3/4

23-9

18'-2 1/8

7-3 5/8

12-3 5/8

PT2-1218A-1*3

61,080

32,910

7,090

54-1 1/4

11-10

16'-2 1/8

7-3 5/8

10-3 5/8

18-0 3/4

PT2-1218A-2*3

63,300

35,130

7,830

54-1 1/4

11-10

17'-2 1/8

7-3 5/8

11-3 5/8

18-0 3/4

PT2-1218A-3*3

65,520

37,350

8,570

54-1 1/4

11-10

18'-2 1/8

7-3 5/8

12-3 5/8

18-0 3/4

PT2-1218A-1*4

81,880

44,320

7,090

36-0 1/2

23-9

17'-2 1/8

8-3 5/8

11-3 5/8

PT2-1218A-2*4

84,840

47,280

7,830

36-0 1/2

23-9

18'-2 1/8

8-3 5/8

12-3 5/8

PT2-1218A-3*4

87,800

50,240

8,570

36-0 1/2

23-9

19'-2 1/8

8-3 5/8

13-3 5/8

Notes:
1. Data corresponds to all available motors for this model.
2. 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.

Do not use for construction. Refer to factory certified dimensions. This catalog includes data current at
the time of publication, which should be reconfirmed at the time of purchase.
ENGINEERING DATA: PT2 COOLING TOWERS

P erformance

Engineering Data
1 Cell

2 Cell: PT2-XXXXA-**2[2]

2 Cell: PT2-1218A-**T [2]

Motor Qty.
and HP

Nominal
Tonnage[3]

Motor Qty.
and HP

Nominal
Tonnage[3]

Motor Qty.
and HP

Nominal
Tonnage[3]

Motor Qty.
and HP

Nominal
Tonnage[3]

Motor Qty.
and HP

117
149

(2) 5
(2) 7.5

43,910
46,500
43,520

157
199
210

(1) 10
(1) 15
(1) 15

316
400
423

(2) 10
(2) 15
(2) 20

481
606
640

(3) 10
(3) 15
(3) 20

PT2-0809A-1K*
PT2-0809A-2L*
PT2-0809A-3M*

47,000
50,340
51,820

168
215
250

(1) 10
(1) 15
(1) 20

338
433
503

(2) 10
(2) 15
(2) 20

514
656
761

(3) 10
(3) 15
(3) 20

PT2-0812A-1M*
PT2-0812A-2N*
PT2-0812A-3O*

74,360
73,720
72,490

265
315
350

(1) 20
(1) 25
(1) 30

536
635
704

(2) 20
(2) 25
(2) 30

816
963
1,066

(3) 20
(3) 25
(3) 30

PT2-1009A-1L*
PT2-1009A-2M*
PT2-1009A-3N*

62,510
62,860
76,360

223
268
301

(1) 15
(1) 20
(1) 25

446
537
602

(2) 15
(2) 20
(2) 25

679
814
911

(3) 15
(3) 20
(3) 25

901
1,082
1,211

(4) 15
(4) 20
(4) 25

PT2-1012A-1M*
PT2-1012A-2O*
PT2-1012A-3O*

81,730
86,260
80,690

292
368
389

(1) 20
(1) 30
(1) 30

586
740
781

(2) 20
(2) 30
(2) 30

890
1,120
1,182

(3) 20
(3) 30
(3) 30

1,173
1,481
1,564

(4) 20
(4) 30
(4) 30

PT2-1212A-1N*
PT2-1212A-2O*
PT2-1212A-3P*

101,160
101,190
104,080

361
432
502

(1) 25
(1) 30
(1) 40

721
863
1,004

(2) 25
(2) 30
(2) 40

1,092
1,305
1,515

(3) 25
(3) 30
(3) 40

1,441
1,726
2,007

(4) 25
(4) 30
(4) 40

PT2-1218A-1K*
PT2-1218A-1L*
PT2-1218A-1M*
PT2-1218A-1N*
PT2-1218A-1O*
PT2-1218A-1P*
PT2-1218A-2K*
PT2-1218A-2L*
PT2-1218A-2M*
PT2-1218A-2N*
PT2-1218A-2O*
PT2-1218A-2P*
PT2-1218A-2Q*
PT2-1218A-3K*
PT2-1218A-3L*
PT2-1218A-3M*
PT2-1218A-3N*
PT2-1218A-3O*
PT2-1218A-3P*
PT2-1218A-3Q*
PT2-1218A-3R*
PT2-1218A-3S*

99,330
113,210
124,140
133,280
141,220
154,630
93,890
106,970
117,260
125,870
133,330
145,940
156,460
89,340
101,590
111,200
119,210
126,150
137,830
147,550
155,940
163,410

355
404
442
474
502
550
402
456
500
536
568
622
667
427
485
531
569
603
660
708
750
787

(2) 5
(2) 7.5
(2) 10
(2) 15[4]
(2) 15
(2) 20
(2) 5
(2) 7.5
(2) 10
(2) 15[4]
(2) 15
(2) 20
(2) 25
(2) 5
(2) 7.5
(2) 10
(2) 15[4]
(2) 15
(2) 20
(2) 25
(2) 30
(2) 35

713
811
887
952
1,008
1,104
805
914
1,001
1,074
1,137
1,245
1,336
854
971
1,063
1,140
1,207
1,322
1,418
1,502
1,577

(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 25
(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 25
(4) 30
(4) 35

711
808
884
949
1,005
1,100
803
912
999
1,072
1,135
1,243
1,333
852
969
1,060
1,138
1,205
1,319
1,415
1,499
1,574

(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 25
(4) 5
(4) 7.5
(4) 10
(4) 15[4]
(4) 15
(4) 20
(4) 25
(4) 30
(4) 35

1,072
1,218
1,334
1,431
1,515
1,659
1,209
1,374
1,504
1,613
1,709
1,871
2,007
1,283
1,458
1,596
1,712
1,813
1,986
2,130
2,256
2,368

(6) 5
(6) 7.5
(6) 10
(6) 15[4]
(6) 15
(6) 20
(6) 5
(6) 7.5
(6) 10
(6) 15[4]
(6) 15
(6) 20
(6) 25
(6) 5
(6) 7.5
(6) 10
(6) 15[4]
(6) 15
(6) 20
(6) 25
(6) 30
(6) 35

1,400
1,591
1,742
1,869
1,979
2,167
1,587
1,803
1,974
2,117
2,243
2,455
2,634
1,687
1,917
2,099
2,252
2,385
2,611
2,801
2,967
3,115

(8) 5
(8) 7.5
(8) 10
(8) 15[4]
(8) 15
(8) 20
(8) 5
(8) 7.5
(8) 10
(8) 15[4]
(8) 15
(8) 20
(8) 25
(8) 5
(8) 7.5
(8) 10
(8) 15[4]
(8) 15
(8) 20
(8) 25
(8) 30
(8) 35

Airflow
Per Cell
(CFM)

Nominal
Tonnage[3]

PT2-0412A-1H*
PT2-0412A-2J*

30,750
33,520

PT2-0709A-1K*
PT2-0709A-2L*
PT2-0709A-3L*

Model Number[1]

3 Cell

4 Cell

Notes:
1. * in Model Number below indicates number of cells.

4. The cell will have a break horsepower of 25 HP.

2. For a plan view of Models PT2-1218A-**2 and

PT2-1218A-**T, see Page 5.

5. Up-to-date engineering data, free product selection software,

and more can be found at www.BaltimoreAircoil.com.

3. Nominal tons of cooling represents 3 GPM of water from 95F

to 85F at a 78F entering wet-bulb temperature.
7

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Structural Support
The recommended support arrangement for the PT2 Cooling Tower consists of parallel I-beams positioned as shown on the
drawing. 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 PT2 Cooling Tower may also be supported on columns at the anchor bolt locations
shown in Plan A.
A minimum bearing surface of 12 in2 (77,742mm2) must be provided under each of the concentrated load points (See Note
5). To support a PT2 Cooling Tower on columns with an alternate steel support arrangement, or the optional structurally
upgraded unit, consult your local BAC Representative.

Notes:

C
D

1. Contact your local BAC Representative for

multi-cell or structurally upgraded unit
steel support.

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

4. Beam size should be calculated in
accordance with accepted structural
practice. Maximum deflection of beam
under unit to be 1/360 of span, not
to exceed 1/2. Use 65% of operating
weight as a uniform load on each beam.
The length of the beam must be at least
equal to the length of the basin. Refer to
engineering data for basin dimensions.
Support data and maximum allowed
deflection is tabulated in the table to
the left.

2. Support beams and anchor bolts to be

selected and installed by others.

Single Cell Standard Unit Only

S ingle C ell S tandard U nit O nly

Model Number

PT2-0412

11'-11 3/4

4'-0

3'-9 3/4

1 1/8

10'-5 1/4

9 1/4

PT2-0709

8'-11 3/4

7'-3 1/4

7'-1

1 1/8

7'-5 1/4

9 1/4

PT2-0809

8'-11 3/4

8'-5 3/4

8'-3 1/2

1 1/8

7'-5 1/4

9 1/4

PT2-0812

11'-11 3/4

8'-5 3/4

8'-3 1/2

1 1/8

10'-5 1/4

9 1/4

PT2-1009

8'-11 3/4

9'-10

9'-7 3/4

1 1/8

7'-5 1/4

9 1/4

PT2-1012

11'-11 3/4

9'-10

9'-7 3/4

1 1/8

10'-5 1/4

9 1/4

PT2-1212

11'-11 3/4

11'-10

11'-7 3/4

1 1/8

10'-5 1/4

9 1/4

PT2-1218

17'-11 3/4

11'-10

11'-7 3/4

1 1/8

17'-3 3/4"

4"

5'-8 3/32"

5'-11 1/2"

5. If vibration isolators are used, a rail

or channel must be provided between
the unit and the isolators to provide
continuous support. Refer to vibration
isolators drawings for the length of the
rails and mounting hole. Locations, which
may differ from the length and the hole
location of the unit itself.

ENGINEERING DATA: PT2 COOLING TOWERS

A lternative

Structural Support
For replacement installations, the PT2 Cooling Tower has been designed to match the supporting steel of many existing
counterflow and crossflow cooling towers without modifications. Shown below are the most common steel support
arrangements which can be accommodated by the PT2. IBC wind and seismic load ratings are not available on alternate steel
support arrangements. If individual point support is required, or if the steel arrangement is not shown as below, consult your
local BAC Representative for assistance.

Notes:

1. Contact your local BAC Representative for

multi-cell or structurally upgraded unit
steel support.

2. Support beams and anchor bolts to be

selected and installed by others.

5. If vibration isolators are used, a rail

or channel must be provided between
the unit and the isolators to provide
continuous support. Refer to vibration
isolators drawings for the length of the
rails and mounting hole. Locations, which
may differ from the length and the hole
location of the unit itself.

4. Beam size should be calculated in

accordance with accepted structural
practice. Maximum deflection of beam
under unit to be 1/360 of span, not
to exceed 1/2. Use 65% of operating
weight as a uniform load on each beam.
The length of the beam must be at least
equal to the length of the basin. Refer to
engineering data for basin dimensions.
Support data and maximum allowed
deflection is tabulated in the table to the
right.

W
A

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

Single Cell Standard Unit Alternative Steel Support

S ingle C ell S tandard U nit A lternative S teel S uppor T

Model
Number

PT2-0412

11' 11 3/4

4' 0

3' 4

11' 9 1/2

1 1/8

PT2-0709

8' 11 3/4

7' 3 1/4

6' 7 1/4

8' 9 1/2

1 1/8

PT2-0809

8' 11 3/4

8' 5 3/4

7' 9 3/4

8' 9 1/2

1 1/8

PT2-0812

11' 11 3/4

8' 5 3/4

7' 9 3/4

11' 9 1/2

1 1/8

PT2-1009

8' 11 3/4

9' 10

9' 2

8' 9 1/2

1 1/8

PT2-1012

11' 11 3/4

9' 10

9' 2

11' 9 1/2

1 1/8

PT2-1212

11' 11 3/4

11' 10

11' 2

11' 9 1/2

1 1/8

PT2-1218

17' 11 3/4

11' 10

11' 2

4"

17'-9 1/2"

1 1/8

5'-11"

5'-11 1/2"

5'-7"

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