A.O. Smith 401, 400 DIMENSIONS/CAPACITIES Data, GAS and Electrical Requirement, Dimensional Data

Page 2

DIMENSIONS/CAPACITIES DATA

TOP VIEW

FRONT VIEW

TABLE 1: GAS AND ELECTRICAL REQUIREMENT

MODEL

Manifold Pressure

Electrical Characteristics

Type of Gas

Inches W.C.

kPa

Volts/Hz

Amperes

GW/GB-1000

 

 

 

 

 

 

thru 2500

NATURAL

3.5

 

0.87

120/60

30

 

 

 

 

 

 

 

GW/GB-1000

 

 

 

 

 

 

thru 2500

PROPANE

10

 

2.49

120/60

30

 

 

 

 

 

 

 

All Models - Maximum Supply Pressure: 14.0 In. W.C. (3.49 kPa)

Minimum Supply Pressure Natural Gas: 6.0 In. W.C. (1.22 kPa)

Minimum Supply Pressure Propane Gas: 11.0 In. W.C. (2.74 kPa) Minimum Pressures must be maintained during operating conditions.

Figure 1.

IMPORTANT!

Refer to "Installation Clearances" section of manual (page 7) for recommended service clearances prior to boiler placement.

LEFT SIDE

REAR VIEW

TABLE 2. DIMENSIONAL DATA

 

 

A

 

B

 

C

 

D

 

 

E

 

F

Model

Inches

c m

Inches

c m

Inches

 

c m

Inches

 

c m

Inches

c m

Inches

c m

GW/GB-1000

14.1

35.8

12.2

31.0

40.3

 

102.4

31.6

 

80.3

26.0

66.0

46.8

118.9

GW/GB-1300

24.8

63.0

12.2

31.0

40.3

 

102.4

31.6

 

80.3

39.3

99.8

57.3

145.5

GW/GB-1500

30.2

76.7

12.2

31.0

40.3

 

102.4

31.6

 

80.3

44.6

113.3

64.3

163.3

GW/GB-1850

27.7

70.4

11.2

28.4

43.0

 

109.2

32.3

 

82.0

44.0

111.8

78.3

198.9

GW/GB-2100

31.0

78.7

11.2

28.4

43.0

 

109.2

32.3

 

82.0

49.5

125.7

85.3

216.7

GW/GB-2500

38.1

96.8

10.5

26.7

43.0

 

109.2

32.3

 

82.0

56.5

143.5

99.3

252.2

 

 

Input Rating

 

Exhaust

Air Intake

 

 

 

BTU/Hr.

KW

BTU/Hr.

KW

Vent Diameter

Diameter

Water Conn.

Gas Inlet

Model

Natural Gas

Natural Gas

Propane Gas

Propane Gas

Inches

c m

Inches

c m

Size

 

GW/GB-1000

990,000

289.95

990,000

289.95

10

25.4

8

20.3

2 1/2 NPT

2 NPT

GW/GB-1300

1,300,000

380.74

1,300,000

380.74

12

30.5

10

25.4

2 1/2 NPT

2 NPT

GW/GB-1500

1,500,000

439.31

1,500,000

439.31

12

30.5

10

25.4

2 1/2 NPT

2 NPT

GW/GB-1850

1,850,000

541.82

1,850,000

541.82

14

35.6

10

25.4

2 1/2 NPT

2 1/2 NPT

GW/GB-2100

2,100,000

615.04

2,100,000

615.04

14

35.6

12

30.5

2 1/2 NPT

2 1/2 NPT

GW/GB-2500

2,490,000

729.26

2,490,000

729.26

16

40.7

12

30.5

2 1/2 NPT

2 1/2 NPT

2

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Contents Installation Operation Maintenance Limited Warranty Copper Boilers for Hydronic Heating HOT Water SupplyGAS and Electrical Requirement DIMENSIONS/CAPACITIES DataDimensional Data Dimensions Data for Outdoor Configuration Recovery Capacities ForewordFEATURES/CONTROLS Water Flow Switch Differential Pressure Switch Combustion AIR BlowerBlocked Flue Pressure Switch ON/OFF SwitchRequired Ability Installation InstructionsSafety Relief Valves LocationLevelling Installation ClearancesChemical Vapor Corrosion AIR RequirementsVenting Horizontal Vent Installation INTAKE/EXHAUST Installation Requirements System InstallationInstallation AS Boiler Replacement GeneralEquivalent Standard Vent Vertical CategoryType B or 16 40.6 cmSteel Standard Vent Horizontal CategoryIII Stainless IIIDirect Vent Vertical Exhaust Configurations Direct Vent Vertical CategoryStainless GAL. Steel Sealed Direct Vent Horizontal Exhaust ConfigurationsDirect Vent Horizontal Category Stainless GAL.STEELHydronic Installation VAC System Controller Optional Space Heating ApplicationsInternal Contaminants Hard Water Conditions Tank Probe Installation ProcedureGAS Connections Water Line Connections Tank Probe OptionalSingle boiler with horizontal tank Single boiler with vertical tank Suggested Pipe Size For Multiple Gas Appliances Propane Gas Distance from Meter BTU Input Single Unit INSTALLATION, Suggested Pipe SizeWiring Connections BTU/HRGAS Manifold Assembly Genesis GB/GW 1000-2500 Series 400 Wiring Diagram Page Genesis GB/GW 1000-2500 Series 400 Schematic Diagram Page CCB Central Control Board FCB Flame Control Board Diagram PDB Power Distribution Board Diagram Purging of GAS Line OperationFilling and Purging Water System Inlet GAS PressureFor Your Safety Read Before Operating For Your Safety Read Before Operating Setting Degree Burns on Adult Skin AdjustmentsRisk of Scalds Temperature Control SystemWater Level Sensor open condition indicates fault Air Pressure Sensors open condition indicates faultGas Pressure Sensors open condition indicates fault CCB/FCB Indicator Lamps & FusesCCB Ten Position Dipswitch Central Control Section SW1 CCB-SW2FCB Eight-Position Dipswitch Operating SequenceStages 1 and 2 will turn on in sequence from 1 to Temperature Setpoints System Control AlgorithmUIM Operating Procedures UIM ScreensMenu Screen Temperature ScreenStatus Displayed True Condition Input System Status ScreenDescription of FCB control states Operating Differentialsetpoint Adjustment Procedure Operating Setpoint Adjustment ProcedureHigh Limit Differential Setpoint Adjustment Procedure Fault Displayed Description Redled Lockout Hard Main Burners Tank Probe Tank Remote probe shorted or open FlashingDeliming Replacement Parts Tubecleaningprocedure Mechanical Removal of DepositsNEW Boiler Limited Warranty Conditions and ExceptionsTennessee Waltz Parkway, Ashland City, TN Phone
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