Ao-smith DB-720 thru 1810 User Manual download pdf

ZÁ\o Oo

Meets or exceeds ASHRAE/IES 90.1 b-1989 (1992 requirements)

Standards.

FEATURES

ALL NON-FERROUS WATERWAYS - All heat exchanger waterways

are 100% copper and bronze. Heavy duty bronze castings and copper

heat exchanger tubes. Immune to thermal shock. Ideal for hydronic

applications.

OPTIMUM ENERGY HEAT TRANSFER - Double row integral finned

copper heat exchanger provides maximum heat transfer. A. O.

Smith’s self-baffling staggered tube design, assures up to 82%

thermal efficiency.

BRONZE REMOVABLE RETURN BENDS - Easily removable, these

allow access and Inspection of individual tubes. These bronze return

bends offer the optimum protection against corrosion or rust found

in cast iron headers.

GASKETLESS WET SECTION - Unique “o” ring design compresses

and forms a water tight seal outside and away from the combustion

chamber. This isolation allows for years of trouble-free service

without gasket leaks.

DURAMAX STAINLESS STEEL BURNERS - Reliable, safe and

quiet. Protects against corrosion and deterioration found with

aluminized burners. Easy slide out burner tray.

LOW-PROFILE DESIGN - Draft diverter is built-in to provide extra

clearances for those tight retrofit applications. Certified by A.G.A./

C.G.A.

AUTOMATIC SAFE CONTROLS - Highest quality controls assure

dependable operation, require practically no attention. Safety shutoff

of pilot and main burners in the event of pilot failure.

INTERMITTENT IGNITION - Standard on all Dura-Max.

COMPACT DESIGN - This rugged unit incorporates a clean, compact

jacket design. Allows for easy access and disassembly. Cool to the

touch. Approved for combustible floor installations. Gas train is

enclosed inside the cabinet.

OTHER FEATURES

• Manual reset high limit • ASME rated pressure relief valve 50#

(345 kPa) • Factory installed safety flow switch • Redundant safety

gas valve • On/Off switch with indicator light.

OPTIONS

• Thermal Balancer Pump Delay • Panel mounted Inlet/outlet dial

thermometers and pressure gauge • Modulation or dual stage firing

• Right end gas and/or water connections • Cupro-Nickel Heat

Exchanger • Side Wall Vent Kits.

CERTIFICATION - A.G.A., C.G.A., FM, ASME 160 psi (1100 kPa).

If the heat exchanger should fail within 10 years,

under the terms of the warranty, A. O. Smith will

furnish a replacement part; installation, labor,

handling and local delivery extra. THIS OUTLINE

IS NOT A WARRANTY. For complete information,

consult the written warranty or A. O. Smith Water

Products Company.

Warranty does not apply to product installed outside

of the United States of America or its territorial

possessions and Canada.

1 2 3 4

Summary of Contents

Page 1 - OTHER FEATURES

ZÁ\o OoMeets or exceeds ASHRAE/IES 90.1 b-1989 (1992 requirements) Standards.FEATURESALL NON-FERROUS WATERWAYS - All heat exchanger wate

Page 2

Minimum Clearances To Combustibles In Inches (MM)TopWaterSideBlankSideRearVent FrontAll Models 12" (305) 12" (305)6" (152) 6" (152

Page 3 - SUGGESTED SPECIFICATIONS

BOILER RATE OF FLOW AND PRESSURE DROPModelNumberTemp. Rise 20°FTemp. Rise 30°FTemp. Rise 40°FTemp. Rise 10°CTemp. Rise 15°CTemp. Rise 20°CModelNumberH

Page 4 - Dura-Max Side Wall Venting

Dura-Max Side Wall VentingSide Wall Vent HoodsVENTTERMINALPartNumberDimensions in Inches (mm)A B C6526 11-1/2"(290mm)8"(203mm)20"(508mm

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Ao-smith DB-720 thru 1810 User Manual

Browse online or download User Manual for Water boiler Ao-smith DB-720 thru 1810. A.O. Smith DB-720 thru 1810 User Manual

Summary of Contents

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