A.O. Smith DB/DW-720-1810 ROUGH-IN Dimensions Capacities, Installation Clearances, Levelling

Page 3

CAUTION

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

"Verify proper operation after servicing."

Two inch clearance is allowable from combustible construction for hot water pipes.

Sufficient clearance should be provided at one end of the boiler to permit access to heat exchanger tubes for cleaning. Maximum operating water supply pressure 160 psi. Gas supply pressure: 13.8" w.c. max., 5.5" w.c. min.

ROUGH-IN DIMENSIONS/

CAPACITIES

INSTALLATION CLEARANCES

These boilers are approved for installation on combustible flooring in an alcove with minimum clearance to combustibles See chart below.

WARNING

AN AMPLE SUPPLY OF AIR MUST BE PROVIDED

FOR PROPER COMBUSTION AND VENTILATION.

TABLE 1, ROUGH-IN DIMENSIONS

Sufficient area should be provided at the front and sides of the unit for proper servicing. Clearances of 48" in front and 24" on sides is recommended. In a utility room installation, the door shall be wide enough to allow the boiler to enter or to permit the replacement of another appliance.

LEVELLING

Each unit should be checked after installation to be certain that it is level.

Models

 

DW-720

 

DW-840

 

DW-960

 

DW-1080

 

DW-1210

 

DW-1350

 

DW-1480

 

DW-1610

 

DW-1810

Dimensions

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

A

46 1/2

1181

52

1/5

1326

57

3/4

1467

52 7/8

1343

58

1/2

1486

64

1/2

1638

69

1/2

1765

75

1905

82 1/2

2096

B

29 5/8

752

29

5/8

752

29

5/8

752

32 3/4

832

32

3/4

832

32

3/4

832

34

 

864

34

 

864

34

 

864

C

54 3/4

1391

54

3/4

1391

54

3/4

1391

58

1473

58

 

1473

58

 

1473

60

1/2

1537

60

1/2

1537

60 1/2

1537

D

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/2 NPT

 

1 1/2 NPT

 

1 1/2 NPT

 

2

NPT

 

2

NPT

E

7 3/4

197

7 3/4

197

7 3/4

197

7 1/2

191

7 1/2

191

7 1/2

191

7 1/2

191

7 1/2

191

7 1/2

191

F

15 1/2

394

15

1/2

394

15

1/2

394

18 1/2

470

18

1/2

470

18

1/2

470

18

1/2

470

18

1/2

470

18 1/2

470

G

17

1/4

438

17

1/4

438

17

1/4

438

18

9/16

471

18

9/16

471

18

9/16

471

19

1/8

486

19

1/8

486

19

1/8

486

H

4 1/4

108

4 1/4

108

4 1/4

108

 

4

102

 

4

102

 

4

102

4 1/2

114

4 1/2

114

4 1/2

114

J

 

2 NPT

 

2 NPT

 

2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

K

 

2 NPT

 

2 NPT

 

2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

 

2 1/2 NPT

L

 

1 NPT

 

1 NPT

 

1 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

 

1 1/4 NPT

M

12

 

305

14

 

356

14

 

356

 

16

406

16

406

18

457

18

 

457

18

 

457

20

 

508

N

15 1/2

394

16

1/2

419

16

1/2

419

17 1/4

438

17

1/4

438

17

1/4

438

13

3/4

349

13

3/4

349

13 3/4

349

W

32 1/8

816

31

1/8

791

32

1/8

816

30 15/16

786

30 15/16

786

30 15/16

786

31

 

787

31

 

787

31

 

787

Approx.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shipping

780 lbs

354 Kg.

950 lbs

431 Kg

950 lbs

431 Kg

1000 lbs

454 Kg

1075 lbs

488 Kg.

1100 lbs

499 Kg

1125 lbs

510 Kg

1150 lbs

522 Kg

1250 lbs

567 Kg

Weight.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum Clearances To Combustibles

 

 

 

Water

Blank

 

 

 

 

 

Top

Side

Side

Rear

Vent

Front

 

All Models

12" (305mm)

18" (457mm)

6" (155mm)

6" (155mm)

6" (155mm)

Alcove

 

 

 

 

 

 

 

 

3

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Contents TM Models DB/DW-720-1810 Installation Operation Maintenance Limited WarrantyContents Replacement PartsForeword ROUGH-IN Dimensions Capacities Installation ClearancesLevelling Pressure Drop Electronic Intermittent Pilot Ignition Control FeaturesSafety Relief Valves Manual Reset High Temperature Safety Limit ControlDual Stage Models only HIGH/LOW Operator Automatic Reset High Temperature Limit ControlSafety Flow Switch Thermal BalancerAIR Requirements Installation InstructionsRequired Ability LocationVenting the Boiler Draft HoodVent Connection GAS Connections Connecting Boiler to a Common VentCorrect GAS PurgingExample High Altitude InstallationsWiring Connections Conventional InstallationsSystems Equipment Installation Circulating Pump Must be Properly Sized for Your Application Circulating PumpLOW Water Cutoff System InstallationTank Temperature Control Conventional Space Heating InstallationInstallation AS Boiler Replacement DB InstallationPage LINEAR-TEMP Space Heating Applications LINEAR-TEMP Space Heating InstallationsDuraMax Pump Performance Requirements Thermometer Pressure Gauge Safety Flow SwitchONE Boiler LINEAR-TEMP System Page Page Page Page Page Page ONE DURA-MAX Model DW Commercial Boiler with Vertical Tank Hard Water ConditionsONE DURA-MAX Model DW Commercial Boiler with Horizontal Tank NPT NPT Manifolding of Model TJV-120M & TJV-200M Tanks START-UP and Operating Instructions For Your Safety Read Before Operating Pilot Burner PrecautionsChecking and Adjusting the Input Internal ContaminantsTROUBLE-SHOOTING PRE-TROUBLE-SHOOTINGYES No Spark AT Pilot BurnerSpark AT Pilot Burner but Pilot will not Light Pilot Burner Lights but Main Burner does not Light Relief Valve General MaintenanceVenting Maintenance Heat Exchanger Preventive MaintenanceRemoval of AN Existing Boiler from a Common Venting System Deliming SolventsRemoving Light Deposits of Scale Mechanical Removal of DepositsDURA-MAX Limited Warranty Page Page Replacement Parts

DB/DW-720-1810 specifications

A.O. Smith has a longstanding reputation for quality and innovation in the water heater industry, and the DB/DW-720-1810 model exemplifies these values. This particular water heater is designed to provide reliable hot water, making it suitable for both residential and commercial applications. Its impressive features and cutting-edge technologies set it apart from conventional models.

One of the primary features of the A.O. Smith DB/DW-720-1810 is its energy efficiency. It operates using advanced insulation technologies, minimizing heat loss and promoting energy savings. This model is designed with a high-efficiency burner that substantially reduces energy consumption while maintaining optimal performance. It also complies with industry standards for energy efficiency, ensuring that users can enjoy lower utility bills without sacrificing comfort.

The DB/DW-720-1810 is equipped with a robust tank designed to hold an ample supply of hot water. With a capacity of 75 gallons, it is ideal for households with high demand, such as multi-bathroom residences or commercial establishments. This large capacity ensures that hot water is readily available for various activities, from bathing to cleaning.

User control is another notable characteristic of the A.O. Smith DB/DW-720-1810. The model features an intuitive digital display that allows users to monitor and set water temperatures easily. This interface not only enhances usability but also promotes safety, preventing scalding by allowing users to adjust the temperature to their preference.

Durability is a key consideration in the DB/DW-720-1810’s design. It is built with high-quality materials and features a corrosion-resistant tank, ensuring longevity even in challenging water conditions. This resilience is further supplemented by A.O. Smith's advanced anode rod technology, which helps battle corrosion and extends the lifespan of the water heater.

Lastly, maintenance is simplified with this model. A.O. Smith has designed the water heater for easy access to serviceable parts, making routine maintenance more convenient and less time-consuming. Coupled with warranty options that provide peace of mind, the DB/DW-720-1810 stands out as a dependable choice.

In summary, the A.O. Smith DB/DW-720-1810 combines energy efficiency, significant capacity, user-friendly controls, durability, and low maintenance needs, making it an exceptional option for those needing a reliable hot water solution.