Utica Boilers JE 安装指导

1) Ratings are at sea level to 2,000 feet. For altitudes above 2,000 feet, reduce all ratings 4% for each 1,000 feet above 

sea level

2) Net steam ratings based on an allowance of 1.333 (300-1500).  Contact Technical Support before selecting boiler for     

installations having unusual piping and pick-up factors, such as intermittent system operations, extensive piping systems, etc.

3) Ratings in square feet are computed at 240 Btuh/square foot for steam boilers.

4) Ratings based on 33,500 Btuh per horsepower.

5) Pressure drop based on given flow from single outlet and returning to single inlet at the opposite end of the boiler.

6) Chimney sizes shown are one option based on a typical venting system as shown in Figure 6, and sized according to the National  

Fuel Gas Code, assuming Type B double wall vent and vent connectors, Other venting system designs are acceptable as shown on   

Flue Connection And Venting section of this manual. For further chimney design and sizing information, consult the National 

Fuel Gas Code, ANSI Z223.1/NFPA 54-latest revision, or ASHRAE HVAC Systems and Equipment Handbook, Chimney, Gas Vent, and 

Fireplace Systems, or the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances. NFPA 211. Follow standard 

engineering practice.

 300

 400

 500

233

310

388

729

971

1213

175

233

291

1

1

1

8”x20’

10”x20’

12”x20’

8

10

12

6.96

9.25

11.58

77.0

 600

 700

 800

 900

1000

465

543

620

698

775

1454

1696

1938

2183

2421

349

407

465

524

581

2

1

1

2

1

1

2

12”x20’

12”x20’

14”x20’

14”x20’

14”x20’

12

12

14

14

14

13.88

16.21

18.51

20.84

23.13

77.0

1100

 1200

1300

1400

1500

853

930

1008

1085

1163

2667

2908

3150

3392

3633

640

698

756

814

872

1

1

2

3

1

2

2

3

16”x20’

16”x20’

16”x20’

18”x20’

18”x20

16

16

16

18

18

25.46

27.76

30.09

32.39

34.72

77.0