Bradford-White 355-B User Manual

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"Highest in Subcontractor Satisfaction among Water Heater/Boiler Manufacturers"

Light Duty Commercial Through-The-Wall

Energy Saver Gas Water Heaters

Photo is of TW4-65S-70FB-3N

The TTW®4 FVIR Defender Safety System® Models Feature (50 and 65 gallon models, only):

Advanced ScreenLok® Technology Flame ArrestorDesign—Flame arrestor is designed to prevent ignition of flammable vapor outside of the water heater

Flammable Vapor Sensor—Electronicsensor prevents burner operation if flammable vapors are detected. The sensor will also prevent operation if there is ongoing flammable vapor burn inside the combustion chamber.

Maintenance Free—Noregular cleaning of air inlet openings or flame arrestor is required under normal conditions.

Sight Window—Offersa view into the combustion chamber to observe the operation of the pilot and burner.

Pedestal Base—Ruggedand durable base allows easy transport and positioning, and provides corrosion resistant contact with floor.

All TTW®4 Models Feature:

Powerful Blower Motor—Ourdesign has higher torque for greater resistance to outside winds and the power to eliminate problems with difficult venting situations. This significantly quieter motor runs cooler for a considerably longer operational life.

Spark-to-Pilot Ignition System—Eliminatesthe constant burning pilot used on other water heaters. This device results in savings of pilot gas during standby periods (110 VAC required to heater).

Electronic Gas Control Valve—Theintegrated, immersion gas control valve offers more precise temperature control for higher first hour delivery and also allows water temperature adjustment without removing the cover. The control is equipped with an LED to display heater status and aid in diagnostics.

Horizontal and Vertical Venting—With3" or 4" PVC, ABS, or CPVC (Maximum equivalent vent length on reverse side).

Vitraglas® Lining—BradfordWhite water heater tanks are protected from the corrosive effects of hot water by a ceramicporcelain-likecoating. The exclusive high silica ceramic lining provides a tough interior surface for our water heater tank.

More Precise Temperature Control—Withan adjustable temperature up to 180° F. Not recommended for 180° F sanitizing.

Stainless Steel Flue baffle—Designedto maximize the amount of heat absorbed in the lower portion of tank. Reduces air movement in the heater during standby periods to retard heat loss up the flue.

Steel Tank—Heavygauge steel automatically formed, rolled and welded to assure a continuous seam for glass lining.

Side Connections—Sidetappings allow easy connection for space heating applications.

Protective Magnesium Rod—Providesadded protection against corrosion for longtrouble-freeservice.

Factory Installed Hydrojet® 2Total PerformanceSystem—Cold water inlet sediment reducing device. Helps prevent sediment build up in tank. Increases first hour delivery of hot water while minimizing temperature build up at top of tank. (TW4-75S has Factory Installed Hydrojet®).

Factory Installed Heat Traps—Designincorporates a flexible disk that reduces heat loss in piping and eliminates the potential for noise generation.

Water Connections—3⁄4"NPT factory installed true dielectric fittings. Extends water heater life and eases installation.

2" Non-CFC Foam Insulation—Savesenergy by retarding loss of heat.

Brass Drain Valve.

T&P Relief Valve Installed.

Design Certified by CSA International (formerly AGA and CGA).

3 or 5-YearLimited Tank Warranties /1-YearLimited Warranty on Component Parts.

For more information on warranty, please visit www.bradfordwhite.com

For products installed in USA, Canada and Puerto Rico. Some states do not allow limitations on warranties. See complete copy of the warranty included with the heater.

Bradford White received the highest numerical score among water heater/boiler manufacturers in the proprietary J.D. Power and Associates/ McGraw-HillConstruction 2006 HVAC and Water Heater/Boiler Subcontractor Satisfaction StudySM. Study based on 882 responses measuring 3 water heater/boiler manufacturers and measures opinions of subcontractors. Proprietary study results are based on experiences and perceptions of subcontractors surveyed in May through July 2006. Your experiences may vary. Visit jdpower.com

MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING U.S. PATENTS: 7,063,133 B2; 5,954,492; 5,954,492; 5,761,379; 5,943,984; 5,081,696; 5,988,117; 6,142,216; 5,199,385; 5,574,822; 5,372,185; 5,485,879; 5,277,171; (B1)5,341,770; 5,660,165; 5,596,952; 5,682,666; 4,904,428; 5,023,031; 5,000,893; 4,669,448; 4,829,983; 4,808,356; 5,115,767; 5,092,519; 5,052,346; 4,416,222; 4,628,184; 4,861,968; 4,672,919; Re. 34,534. OTHER U.S. AND FOREIGN PATENT APPLICATIONS PENDING. CURRENT CANADIAN PATENTS: 1,272,914; 1,280,043; 1,289,832; 2,045,862; 2,112,515; 2,108,186; 2,107,012; 2,092,105..

Defender Safety System®, ScreenLok®, TTW®, Vitraglas® and Hydrojet® are registered trademarks of Bradford White® Corporation.

355-B0407

Commercial Through-The-WallGas 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

6578

22

3

5018

1134

1312

5018

5638

5734

2634

188

TW4-65S-70FB-3N

65

54

70,000

63,000

68

57

61

51

69

24

3

5312

1134

1312

5312

5912

6034

2834

222

TW4-75S-76B-3N

75

62

76,000

75,500

74

61

73

60

6934

26

3

53

15

1734

53

6014

6112

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.

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

Note: (TW4-75Swill 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-21.10.1and/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-potablewater heating appliance.

Ambler, PA

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

Sales 800-523-2931Fax 215-641-1670 / Technical Support 800-334-3393Fax 269-795-1089Warranty 800-531-2111Fax 269-795-1089International:Telephone 215-641-9400Telefax 215-641-9750 /www.bradfordwhite.com

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

©2007, Bradford White Corporation. All rights reserved.

 

 

355-B0407

Printed in U.S.A.