Webster Cyclonetic SG Series Installation, Startup, Operation And Maintenance Manual page 10

722197
VENT TO OUTSIDE ATMOSPHERE
Manual Ball
Valve
1
Gas
GAS
Supply
SUPPLY
UL-FM Low-Hi-Low Gas Piping Diagram - Up to 2,500 MBH Firing Rate
722198
VENT TO OUTSIDE ATMOSPHERE
Manual Ball
Valve
1
Gas
GAS
Supply
SUPPLY
UL-FM Modulation Gas Piping Diagram - Up to 2,500 MBH Firing Rate
SG Manual
E. FUEL SYSTEMS (continued)
Vent to Outside
Atmosphere
Main Solenoid
Gas Valve
Gas
5 6
Pressure
Regulator
S
4
Manual
Test Valve
Vent to Outside
Atmosphere
Main Solenoid
Gas Valve
6
5 Gas
Pressure
S
Regulator
4
Manual
Test Valve
Main Motorized
Manual Ball
Gas Valve
7
M
4
Manual
Test Valve
Main Motorized
Gas Valve
Manual Ball
7
Valve
1
M
4
Manual
Test Valve
Page 10
Manual Ball
Valve
Valve
1
1
1
Fuel Flow Manual Ball
Control Valve Valve
10
1
722197
Gas
GAS BURNER
Burner
MANIFOLD
Manifold
722198
Gas Burner
GAS BURNER
Manifold MANIFOLD
Fuel Systems