XP BOILERS 1000–3400 - ONE BOILER PRIMARY / SECONDARY HYDRONIC PIPING SYSTEM

LEGEND

TEMPERATURE & PRESSURE RELIEF VALVE

FULL PORT BALL VALVE

WARNING: THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.

MODEL

INLET DIA.

OUTLET DIA.

XB-1000

2”

2”

XB-1300

2”

2”

XB-1700

2.5”

2.5”

XB-2000

3”

3”

XB-1600

3”

3”

XB-3400

4”

4”

PRESSURE RELIEF VALVE

CIRCULATING PUMP

TANK TEMPERATURE CONTROL

DRAIN

CHECK VALVE

TEMPERATURE GAGE

WATER FLOW SWITCH

LOOP TEMPERATURE PROBE

AIR SEPARATOR

PLACES TEES AS CLOSE TOGETHER AS PRACTICAL

SYSTEM SUPPLY

MAKE-UP

WATER

SYSTEM RETURN

80

SYSTEM PUMP

 

EXPANSION

TANK

SECONDARY BOILER PUMP - OPTIONAL

FINISHED FLOOR

NOTES:

1.Preferred piping diagram.

2.The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.

3.Service valves are shown for servicing unit. However, local codes shall govern their usage.

4.The boiler is shown with the optional factory installed and sized secondary boiler pump that is available on all XB models.

PIPING DIAGRAMS

Figure 78.  PRIMARY/SECONDARY PIPING SYSTEM

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A.O. Smith 3400, 2600, 1700, 2000 instruction manual Piping Diagrams, Inlet DIA

3400, 1700, 2000, 2600 specifications

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