A.O. Smith BTN 120 THRU 400/A Series warranty Technical Data Venting

Page 9
TABLE 6. TECHNICAL DATA VENTING

TABLE 6. TECHNICAL DATA VENTING

TYPE B GAS VENT

Multiple Gas Fired Tank-Type Heaters

When venting multiple tank type heaters using Type B vent pipe, follow the installation diagram (figure 4) and tables below which give sizing and data based upon NFPA 54/ANSI Z223. 1992.

MODEL BTN-120

Input: 120,000 Btu/hr

 

 

 

 

Total Vent Height (Feet)

 

 

 

 

Vent Connector Size: 5 inches

 

 

6

8

10

15

20

 

30

50

100

 

 

Input Btu/hr

 

Rise

 

Vent Connector Diameter (Inches)

 

 

 

120,000

 

1 Ft.

6

6

 

5

5

5

 

5

5

5

 

 

120,000

 

2 Ft.

5

5

 

5

5

5

 

5

5

5

 

 

120,000

 

3 Ft.

5

5

 

5

5

5

 

5

5

5

 

Number of

Combined Input

 

 

 

 

 

 

 

 

 

 

 

 

 

BTN 120 Heaters

in Thousands of Btu/hr

 

 

Manifold and Common Vent Diameter (Inches)

2

240,000

 

 

7

7

6

6

6

 

6

6

6

 

3

360,000

 

 

8

8

7

7

7

 

6

6

6

 

4

480,000

 

 

9

9

9

8

8

 

7

7

6

 

MODEL BTN-154

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input: 154,000 Btu/hr

 

 

 

 

Total Vent Height (Feet)

 

 

 

 

Vent Connector Size: 6 inches

 

 

6

8

10

15

20

 

30

50

100

 

 

Input Btu/hr

 

Rise

 

Vent Connector Diameter (Inches)

 

 

 

154,000

 

1 Ft.

6

6

6

6

6

 

6

6

6

 

 

154,000

 

2 Ft.

6

6

6

6

6

 

6

6

6

 

 

154,000

 

3 Ft.

6

6

6

6

6

 

6

6

6

 

Number of

Combined Input

 

 

 

 

 

 

 

 

 

 

 

 

 

BTN 154 Heaters

in Thousands of Btu/hr

 

 

Manifold and Common Vent Diameter (Inches)

2

308,000

 

 

7

7

6

6

6

 

6

6

6

 

3

462,000

 

 

8

8

7

7

7

 

6

6

6

 

4

616,000

 

 

9

9

9

8

8

 

7

7

6

 

MODEL BTN-180,199, 200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input: 180,000, 190,000 and 199,000 Btu/hr

 

 

 

Total Vent Height (Feet)

 

 

 

 

Vent Connector Size: 6 inches

 

 

6

8

10

15

20

 

30

50

100

 

 

Input Btuh/hr

 

Rise

 

Vent Connector Diameter (Inches)

 

 

 

180,000

 

1 Ft.

7

7

6

6

6

 

6

6

6

 

 

190,000

 

1 Ft.

7

7

7

6

6

 

6

6

6

 

 

199,000

 

1 Ft.

7

7

7

6

6

 

6

6

6

 

 

180,000

 

2 Ft.

6

6

6

6

6

 

6

6

6

 

 

190,000

 

2 Ft.

7

6

6

6

6

 

6

6

6

 

 

199,000

 

2 Ft.

7

7

6

6

6

 

6

6

6

 

 

180,000

 

3 Ft.

6

6

6

6

6

 

6

6

6

 

 

190,000

 

3 Ft.

6

6

6

6

6

 

6

6

6

 

 

199,000

 

3 Ft.

6

6

6

6

6

 

6

6

6

 

Number of

Combined Input

 

 

 

 

 

 

 

 

 

 

 

 

 

BTN Heaters

in Thousands of Btu/hr

 

 

Manifold & Common Vent Diameter (Inches)

2

360,000

 

 

7

7

6

6

6

 

6

6

6

 

380,000

 

 

7

7

7

6

6

 

6

6

6

 

 

398,000

 

 

6

7

7

6

6

 

6

6

6

 

 

540,000

 

 

7

6

6

6

6

 

6

6

6

 

3

570,000

 

 

7

6

6

6

6

 

6

6

6

 

 

597,000

 

 

6

7

6

6

6

 

6

6

6

 

 

720,000

 

 

6

6

6

6

6

 

6

6

6

 

4

760,000

 

 

6

6

6

6

6

 

6

6

6

 

 

796,000

 

 

6

6

6

6

6

 

6

6

6

 

9

Page 8 Page 10
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Page 8 Page 10
Contents INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTY MODELS BTN 120 THRU 400/A SeriesCOMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER TABLE 1. ROUGH-IN-DIMENSIONS ROUGH-IN-DIMENSIONSTABLE 3. GASAND ELECTRICAL CHARACTERISTICS FRONT VIEWFOREWORD TABLE OF CONTENTSPRECAUTIONS GENERAL SAFETY INFORMATIONGROUNDING INSTRUCTIONS CHEMICAL VAPOR CORROSIONHIGH ALTITUDE INSTALLATIONS FEATURESHIGH LIMIT SWITCH ELECTRONIC IGNITION CONTROLDISHWASHING MACHINE REQUIREMENT CIRCULATING PUMPUNCRATING LOCATING THE HEATERCLEARANCES LEVELINGHARD WATER AIR REQUIREMENTSMULTIPLE HEATER MANIFOLD VENTINGUNCONFINED SPACE CONFINED SPACETYPE B GAS VENT Multiple Gas Fired Tank-Type Heaters TABLE 6. TECHNICAL DATA VENTINGTABLE 6. TECHNICAL DATA VENTING Continued WATER POTABLE HEATING AND SPACE HEATING See pages WATER LINE CONNECTIONSTHERMOMETERS Not Supplied RELIEF VALVEGENERAL INSTALLATION DIAGRAMS-TOP INLET/OUTLET USAGECODE RESTRICTIONS DANGERHORIZONTAL STORAGE TANK AND FORCED CIRCULATION VERTICAL STORAGE TANK AND FORCED CIRCULATIONTEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROLWITH RECIRCULATION OF SANITIZING LOOP TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGEINSTALLATION DIAGRAMS-SIDE INLET/OUTLET USAGE TWO TEMPERATURE - TWO HEATERS, ONE PRE-HEATER/ONE - BOOSTER HEATERWITH OR WITHOUT BUILDING RECIRCULATION STORAGE WITH OR WITHOUT RECIRCULATION ONE OR TWO TEMPERATURE - ONE HEATERS,HIGH TEMPERATUREHEATER WITH OR WITHOUT MIXING VALVE HEATER WITH MIXING VALVE AND RECIRCULATED SANITIZING LOOPHEATER WITH OR WITHOUT BUILING RECIRCULATION TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTERTWO PRE-HEATERS WITH MIXING VALVE TWO PRE-HEATERS WITH BOOSTER HEATERCIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCEDVERTICAL STORAGE TANK HORIZONTAL STORAGE TANKTWO UNIT MANIFOLD KIT MANIFOLD KITSTHREE UNIT MANIFOLD KIT FOUR UNIT MANIFOLD KITFIGURE 9 - SINGLE UNIT WIRING DIAGRAM BTN-120 THROUGH 400A HEATER WIRINGGAS PRESSURE REGULATOR GAS PIPINGTABLE 7 - GAS SUPPLY LINE SIZES IN INCHES MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOURMANIFOLD GAS PRESSURE IN INCHES OF WATER COLUMN ALL MODELS OPERATIONAPPROXIMATE TIME REQUIRED TO CONSUME 1 CU. FT. OF GAS AT FULL CAPACITYSEQUENCE OF OPERATION FOR YOUR SAFETY READ BEFORE OPERATING LIGHTING AND OPERATION INSTRUCTIONSOPERATING INSTRUCTIONS CHECK THE IGNITOR ASSEMBLY PREVENTIVE MAINTENANCEIGNITOR ASSEMBLY WATER TEMPERATURE CONTROLGAS VALVES MAIN BURNERCHECKING THE INPUT FIGURE 11, IGNITORREMOTE STORAGE TANK TEMPERATURE CONTROL VENTING SYSTEMHOT WATER ODOR ANODE ROD INSPECTIONTANK CLEANOUT PROCEDURE RECOMMENDED PROCEDURE FORDELIMING SOLVENTS DELIMING USING FLO-JUG METHODSYSTEM DIAGNOSTICS SERVICEIGNITION MODULE SYSTEM ELECTRICAL SERVICINGREPLACEMENT PARTS, SERVICE HANDBOOKS AND TRAINING AIDS SEQUENCE OF OPERATION FLOW CHARTREPLACEMENT PARTS SERVICEMAN OPERATIONAL CHECKLISTREMEDY COMPLAINT4. SERVICEANDREPAIREXPENSES Model BTN Limited Warranty6. CLAIMPROCEDURE KEEPTHISWARRANTYPOSTEDADJACENTTOTHEHEATERFORFUTUREREFERENCE
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