State Industries SW 37-670 instruction manual Dimension Data, Sizes and Data NW37 Thru NW150

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DIMENSION DATA

SIZES AND DATA NW37 THRU NW150

 

Model Number

 

D

E

F

G**

H

 

J

K

S

T

Inlet* &

Boiler

Prefix

Gal. Cap.

Std. KW Input

 

Outlet*

Drain

 

 

 

 

 

 

 

 

 

 

SW

37

 

45K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

60K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

75K

32

30

12

42

12 1/2

 

-

-

20

4

2

 

1

SW

37

 

90K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

105K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

120K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

150K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

37

 

180K

32

30

12

42

12 1/2

 

-

-

20

4

3

 

1

SW

60

 

210K

32

30

12

57

12 1/2

 

-

-

20

4

3

 

1

SW

60

 

240K

32

30

12

57

12 1/2

 

-

-

20

4

3

 

1

SW

60

 

270K

32

30

12

57

12 1/2

 

-

-

20

4

3

 

1

SW

60

 

300K

32

30

12

57

12 1/2

 

-

-

20

4

3

 

1

SW

96

 

330K

36

38

16

69 1/2

17

1

1/2

17

22

5

4

1

1/4

SW

96

 

390K

36

38

16

69 1/2

17

1

1/2

17

22

5

4

1

1/4

SW

96

 

420K

36

38

16

69 1/2

17

1

1/2

17

22

5

4

1

1/4

SW

96

 

450K

36

38

16

69 1/2

17

1

1/2

17

22

5

4

1

1/4

SW

96

 

480K

36

38

16

69 1/2

17

1

1/2

17

22

5

4

1

1/4

SW

150

 

540K

46

44

19

69 1/2

20

 

2

20

27

5 1/2

5

1

1/2

SW

150

 

600K

46

44

19

69 1/2

20

 

2

20

27

5 1/2

5

1

1/2

SW

150

 

660K

46

44

19

69 1/2

20

 

2

20

27

5 1/2

5

1

1/2

SW

150

 

720K

46

44

19

69 1/2

20

 

2

20

27

5 1/2

5

1

1/2

*All fittings under 4” will be threaded type. All fittings 4” and larger will be flanged. 3” fittings extend 4” beyond jacket.

** Where overall height is a problem a larger diameter vessel with a reduced height may be furnished. Lifting lugs and channel skid base on 96 gallon and larger units.

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Contents Commercial Electric Boilers Installation Operation Service Maintenance Limited WarrantySafe INSTALLATION, USE and Service Grounding Instructions General Safety InformationPrecautions Hydrogen GAS Flammable Introduction Table of ContentsSizes and Data NW37 Thru NW150 Dimension DataSizes and Data NW220 Thru Boiler Specifications Standard Dimension Data cont’dActual Configuration MAY Vary Features and ComponentsFacts to Consider About the Location ApprovalsModel and Rating Locating the Boiler Required Ability InstallationGeneral Pressure Relief ValveThermal Expansion Closed Water SystemsBranch Circuit Electrical DataCalculating Amperage Overcurrent Protection Boiler CircuitsWiring Diagrams Diagram Three Phase WYE with Step Control Diagram Three Phase Delta with Step ControlTemperature Regulation High Temperature LimitsOperation Filling the BoilerDraining Temperature ControlsFlushing MaintenanceSediment Removal Water and Lime Scale RemovalSystem Water Test Troubleshooting ChecklistSW-37 Thru SW-670 Electric HOT Water Boiler Limited Warranty Division of A. O. Smith Corporation RENTON, Washington