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Cast Iron Condensing Boilers – Installation Manual
FlexCore Stainless Steel Condensing Boilers – Installation Manual
Figure 15 - Typical Multiple Boiler with Indirect Storage Tank Piping
RIOM-0207_A
HEAT NET
SENSOR
EXPANSION
TANK
THERMOMETER
BACKFLOW PREVENTION
DEVICE
GATE VALVE
PUMP
TEMPERATURE &
PRESURE
RELIEF VALVE
PRESURE
RELIEF VALVE
CHECK VALVE
VACUUM RELIEF
VALVE
NOTES:
1. WHEN USING INTERMITTENT PUMP AND PUMP DELAY, LOCATE HEAT NET
SENSOR WITH WELL IN LOWER 1/3 OF TANK. INSTALL SENSOR WITH HEAT
SENSING COMPOUND.
2. THERMAL EXPANSION TANK MAY BE REQUIRED, CHECK LOCAL CODES.
3. COMMON PIPING MUST BE SIZED FOR MAXIMUM COMBINED HEATER FLOW.
4. HOT WATER TANK SHOULD BE EQUIPPED WITH A COMBINATION TEMPERATURE &
PRESSURE RELIEF VALVE. VALVE SHALL DISCHARGE TO A SAFE PLACE WITH AN
AIR GAP. REFER TO LOCAL CODES.
5. MA CODE REQUIRES AN 1/8" HOLE IN CHECK VALVES TO COMPENSATE FOR
THERMAL EXPANSION.
6. CONTRACTOR SHALL VERIFY, WITH AUTHORITY HAVING JURISDICTION, FOR THE
REQUIREMENTS OF AN ACID NEUTRALIZATION KIT.
7. A THERMOSTATIC MIXING VALVE MAY BE REQUIRED AT THE OUTLET OF THE TANK IN
ORDER TO LIMIT THE MIXED WATER TO A DESIRABLE TEMPERATURE HELPING TO
PREVENT SCALDING AND INJURY. CONSULT LOCAL CODES.
NOTICE: THESE DRAWINGS SHOW SUGGESTED PIPING CONFIGURATION, VALVING AND ARE
DIAGRAMMATIC. CHECK WITH LOCAL CODES AND ORDINANCES FOR SPECIFIC REQUIREMENTS.
COLD WATER
MAKE-UP/FILL
SUPPLY
CIRCULATOR
RETURN
FLOW
FLOW
BRONZE
PUMP
COLD WATER
MAKE-UP
FLOW
FLOW
4
1
2
3
2
5
5
RIOM-0207_A
HEAT NET
SENSOR
EXPANSION
TANK
THERMOMETER
BACKFLOW PREVENTION
DEVICE
GATE VALVE
PUMP
TEMPERATURE &
PRESURE
RELIEF VALVE
PRESURE
RELIEF VALVE
CHECK VALVE
VACUUM RELIEF
VALVE
NOTES:
1. WHEN USING INTERMITTENT PUMP AND PUMP DELAY, LOCATE HEAT NET
SENSOR WITH WELL IN LOWER 1/3 OF TANK. INSTALL SENSOR WITH HEAT
SENSING COMPOUND.
2. THERMAL EXPANSION TANK MAY BE REQUIRED, CHECK LOCAL CODES.
3. COMMON PIPING MUST BE SIZED FOR MAXIMUM COMBINED HEATER FLOW.
4. HOT WATER TANK SHOULD BE EQUIPPED WITH A COMBINATION TEMPERATURE &
PRESSURE RELIEF VALVE. VALVE SHALL DISCHARGE TO A SAFE PLACE WITH AN
AIR GAP. REFER TO LOCAL CODES.
5. MA CODE REQUIRES AN 1/8" HOLE IN CHECK VALVES TO COMPENSATE FOR
THERMAL EXPANSION.
6. CONTRACTOR SHALL VERIFY, WITH AUTHORITY HAVING JURISDICTION, FOR THE
REQUIREMENTS OF AN ACID NEUTRALIZATION KIT.
7. A THERMOSTATIC MIXING VALVE MAY BE REQUIRED AT THE OUTLET OF THE TANK IN
ORDER TO LIMIT THE MIXED WATER TO A DESIRABLE TEMPERATURE HELPING TO
PREVENT SCALDING AND INJURY. CONSULT LOCAL CODES.
NOTICE: THESE DRAWINGS SHOW SUGGESTED PIPING CONFIGURATION, VALVING AND ARE
DIAGRAMMATIC. CHECK WITH LOCAL CODES AND ORDINANCES FOR SPECIFIC REQUIREMENTS.
COLD WATER
MAKE-UP/FILL
SUPPLY
CIRCULATOR
RETURN
FLOW
FLOW
BRONZE
PUMP
COLD WATER
MAKE-UP
FLOW
FLOW
4
1
2
3
2
5
5
RIOM-0207_A
HEAT NET
SENSOR
EXPANSION
TANK
THERMOMETER
BACKFLOW PREVENTION
DEVICE
GATE VALVE
PUMP
TEMPERATURE &
PRESURE
RELIEF VALVE
PRESURE
RELIEF VALVE
CHECK VALVE
VACUUM RELIEF
VALVE
NOTES:
1. WHEN USING INTERMITTENT PUMP AND PUMP DELAY, LOCATE HEAT NET
SENSOR WITH WELL IN LOWER 1/3 OF TANK. INSTALL SENSOR WITH HEAT
SENSING COMPOUND.
2. THERMAL EXPANSION TANK MAY BE REQUIRED, CHECK LOCAL CODES.
3. COMMON PIPING MUST BE SIZED FOR MAXIMUM COMBINED HEATER FLOW.
4. HOT WATER TANK SHOULD BE EQUIPPED WITH A COMBINATION TEMPERATURE &
PRESSURE RELIEF VALVE. VALVE SHALL DISCHARGE TO A SAFE PLACE WITH AN
AIR GAP. REFER TO LOCAL CODES.
5. MA CODE REQUIRES AN 1/8" HOLE IN CHECK VALVES TO COMPENSATE FOR
THERMAL EXPANSION.
6. CONTRACTOR SHALL VERIFY, WITH AUTHORITY HAVING JURISDICTION, FOR THE
REQUIREMENTS OF AN ACID NEUTRALIZATION KIT.
7. A THERMOSTATIC MIXING VALVE MAY BE REQUIRED AT THE OUTLET OF THE TANK IN
ORDER TO LIMIT THE MIXED WATER TO A DESIRABLE TEMPERATURE HELPING TO
PREVENT SCALDING AND INJURY. CONSULT LOCAL CODES.
NOTICE: THESE DRAWINGS SHOW SUGGESTED PIPING CONFIGURATION, VALVING AND ARE
DIAGRAMMATIC. CHECK WITH LOCAL CODES AND ORDINANCES FOR SPECIFIC REQUIREMENTS.
COLD WATER
MAKE-UP/FILL
SUPPLY
CIRCULATOR
RETURN
FLOW
FLOW
BRONZE
PUMP
COLD WATER
MAKE-UP
FLOW
FLOW
4
1
2
3
2
5
5