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Cast Iron Condensing Boilers – Installation Manual
FlexCore Stainless Steel Condensing Boilers – Installation Manual
Figure 17 - Gas Supply Piping Con't.
GROUND
UNION
FROM GAS SUPPLY
SEDIMENT
TRAPAND
DRIP LEG
SUPPLIED BY OTHERS
(PIPING, GAS SUPPLY, CK3500 TO 6000)
PILOT REGULATOR
AND SOLENOID VALVE
(TYP)
TEST PORT
(TYP)
LOW FIRE GAS PRESSURE
ADJUSTMENT (TYP)
HIGH FIRE GAS PRESSURE
ADJUSTMENT (TYP)
HIGH GAS PRESSURE SWITCH
LOCATED DOWNSTREAM OF
GAS VALVE PER CSD-1 (TYP)
MANUAL
SHUTOFF
VALVE 1
(TYP)
MANUAL SHUTOFF VALVE 2 (TYP)
LOW GAS PRESSURE SWITCH (TYP)
CSD-1 TEST PORTS (TYP)
PRESSURE
REGULATOR
PILOT
SHUT OFF
VALVE
(TYP)
REAR MODULE
FRONT MODULE
GAS MANIFOLD
MAIN GAS
VALVE
RIOM-0210_C
MODULATING
GAS VALVE
(TYP)
SUPPLIED BY OTHERS
(PIPING, GAS SUPPLY, CK7000 TO 9000
REAR
MODULE
FRONT
MODULE
RIOM-0210_C
CSD-1 TEST
PORTS (TYP)
HIGH FIRE GAS PRESSURE
ADJUSTMENT (TYP)
MANUAL SHUTOFF
VALVE 2 (TYP)
MANUAL SHUTOFF VALVE 1
(TYP)
MODULATING
GAS VALVE
(TYP)
CENTER
MODULE
SEDIMENT
TRAP AND
DRIP LEG
PRESSURE
REGULATOR
GROUND
UNION
MAIN GAS
VALVE
FROM GAS
SUPPLY
PILOT
SHUT-OFF
VALVE
(TYP)
PILOT REGULATOR AND
SOLENOID VALVE
(TYP)
TEST PORT
(TYP)
REAR MODULE
CENTER MODULE
FRONT MODULE
HIGH GAS PRESSURE
SWITCH LOCATED
DOWNSTREAM OF
GAS VALVE PER CSD-1
(TYP)
GAS MANIFOLD
LOW FIRE GAS
PRESSURE
ADJUSTMENT
(TYP)
LOW GAS PRESSURE SWITCH
(TYP)