Typical Gas Train Layout - Riello Two stage operation forced draught natural gas/propane burner Installation & Operating Manual

TYPICAL GAS TRAIN LAYOUT

This gas train scope of supply meets the minimum controls requirements according to CGA and AGA regulations.
Any additional requirements needed to meet local codes are the responsibility of others.
FIELD SUPPLIED
1
SEE GAS
SUPPLY
RANGE
NOTE: ITEMS 5, 6 & 7 COMBINATION GAS VALVE(S) ASSEMBLIES MAY BE UTILIZED WHERE APPROVED
1 - GAS SUPPLY & FLOW DIRECTION OF GAS
2 - GAS SUPPLY MAIN SHUTOFF MANUAL VALVE
(FIELD SUPPLIED)
3 - GAS SUPPLY PRESSURE TEST POINT (FIELD SUPPLIED)
4 - GAS TRAIN PIPE DIAMETER SIZE(S):
BURNER G900 1" NPT (REDUCED AT COMBUSTION
HEAD TO 3/4")
5 - GAS APPLANCE PRESSURE REGULATOR
6 - SAFETY SHUTOFF GAS VALVE (VS) 120v OPERATED
7 - MAIN GAS VALVE 120V OPERATED
BURNER G750 = TWO STAGE V1 - V2
8 - FIRING VALVE MANUAL SHUTOFF
9 - GAS BURNER MANIFOLD TEST POINT
3245
2 3 4 5
Ø
RIELLO SUPPLIED
6 7
GAS SUPPLY PRESSURE RANGES:
NATURAL GAS PRESSURE:
min. 7" wc
LP PROPANE GAS PRESSURE
min. 8" wc
GB
8 9
- max. 14" wc
- max. 13" wc
6