Bradford-White Corp 355-B warranty General, Suitable for Water Potable Heating and Space Heating

Commercial Through-The-Wall Gas Water Heater

Light Duty TTW®4 Energy Saver Models

Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed

NATURAL GAS AND LIQUID PROPANE GAS

80% Recovery Efficiency

Model

Capacity

Recovery

A

B

C

D

E

F

G

H

J

K

Approx.

100°F Rise*

Floor to

Jacket

Vent

Floor to

Floor

Floor to

Floor to

Floor

Floor

Depth

Shipping

Number

Vent

Dia.

Size

T&P

to

Space

Space

to

to

Weight

LP

Nat.

Nat. Nat.

LP

LP

Conn.

Conn.

Gas

Heating

Heating

Heater

Water

U.S. Imp.

BTU/Hr.

BTU/Hr.

U.S. Imp.

U.S.

Imp.

in.

in.

in.

in.

Conn.

Return

Outlet

Top

Conn.

in.

lbs.

Gal. Gal.

Input

Input

GPH

GPH

GPH

GPH

in.

in.

in.

in.

in.

TW4-50S-67FB-3N

48

40

67,000

60,000

65

54

58

49

657⁄8

22

3

501⁄8

113⁄4

131⁄2

501⁄8

563⁄8

573⁄4

263⁄4

188

TW4-65S-70FB-3N

65

54

70,000

63,000

68

57

61

51

69

24

3

531⁄2

113⁄4

131⁄2

531⁄2

591⁄2

603⁄4

283⁄4

222

TW4-75S-76B-3N

75

62

76,000

75,500

74

61

73

60

693⁄4

26

3

53

15

173⁄4

53

601⁄4

611⁄2

31

277

Model

Capacity

Recovery

A

B

C

D

E

F

G

H

J

K

Approx.

56°C Rise*

Floor to

Jacket

Vent

Floor to

Floor

Floor to

Floor to

Floor

Floor

Depth

Shipping

Number

Vent

Dia.

Size

T&P

to

Space

Space

to

to

Weight

LP

Nat.

Nat.

LP

Conn.

Conn.

Gas

Heating

Heating

Heater

Water

Liters

kW

kW

Liters/

Liters/

mm.

mm.

mm.

mm.

Conn.

Return

Outlet

Top

Conn.

mm.

kg.

Input

Input

Hour

Hour

mm.

mm.

mm.

mm.

mm.

TW4-50S-67FB-3N

182

19.6

17.6

246

220

1673

560

76

1273

320

343

1273

1432

1467

679

85

TW4-65S-70FB-3N

246

20.5

18.5

257

231

1753

610

76

1360

320

343

1360

1511

1543

730

101

TW4-75S-76B-3N

284

22.3

22.1

280

276

1772

660

76

1346

381

451

1346

1530

1562

787

126

All propane heaters are equipped with a cast iron burner. To order a propane heater replace the suffix “B” with “C” and change the suffix “N” to “X”. For 5 year models, change suffix from “3” to “5”.

*Based on manufacturers rated recovery efficiency.

110 V.A.C. Required for Power Venting / 110 V.A.C. 60HZ 3.1 Amperes. NSF construction available.

			C
			K
A			B
	J	H
			D & G
		E	F

TW4-50S-67		3"	4"
TW4-65S-70		Vent Pipe	Vent Pipe
TW4-75S-76
Max. Equivalent Length		†60 ft.**	†180 ft.
Min. Equivalent Length		7 ft.	15 ft.
Number	1	55 ft.	175 ft.
of	2	50 ft.	170 ft.
90° Elbows	3	45 ft.	165 ft.

Subtract 5ft. for each additional 90° elbow

†For high altitude installations, consult the installation instructions.

**TW4-75S Max. 3" vent length is 50ft.

Note: (TW4-75S will not have a pedestal base).

All natural gas models meet SCAQMD Requirements. Meets NAECA Requirements.

General

All gas water heaters are certified at 300 PSI (2068 kPa) test pressure and 150 PSI (1034 kPa) working pressure. All water connections are 3⁄4" NPT (19mm) on 11" (279mm) centers, all gas connections are 1⁄2" (13mm).

All models design certified by CSA International (formerly AGA/CGA), ANSI Z-21.10.1 and/or 10.3 and peak performance rated.

Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.

Suitable for Water (Potable) Heating and Space Heating

Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. This unit may NEVER be connected to any existing heating system or component(s) previously used with a non-potable water heating appliance.

Ambler, PA

For U.S. and Canada field service, contact your professional installer or local Bradford White sales representative.

Sales 800-523-2931 ● Fax 215-641-1670 / Technical Support 800-334-3393 ● Fax 269-795-1089 ● Warranty 800-531-2111 ● Fax 269-795-1089

International: Telephone 215-641-9400 ● Telefax 215-641-9750 / www.bradfordwhite.com

Sales / Technical Support 866-690-0961 /905-238-0100 ● Fax 905-238-0105 /www.bradfordwhite.com

©2007, Bradford White Corporation. All rights reserved.

355-B 0407 Printed in U.S.A.