Webster JBE Series User Manual

Figures 722003, 04, 05, 10 & 11 show the common gas
trains arrangements used on the JBE(X) burner line.
There may be other local or job site requirements that
can alter the components in addition to those outlined in
this summary.
All gas and oil systems for the JBE(X) burner are full
modulating. The two gas safety shutoff valves are either
motorized or solenoid type and are controlled by the
ame safeguard to provide safe control of the fuel ow.
The gas control valve is a buttery valve used to control
the ow of gas from the low re to the high re input. The
buttery valve is driven by a fuel cam (linkage system) or
a direct coupled actuator. There are different types of gas
control valves used, which may use mechanical low re
stops and/or may be internally ported as a smaller size.
High turndown burners will require smaller control valves
with higher pressure drops to provide adequate control at
low re.
Page 29 Section D - Fuel and Electrical SystemsJBE(X) Manual
Field Piped
Pilot Manual
Ball Valve
Pilot Gas
Pressure
Regulator
Pilot Solenoid
Valve
Gas Pilot
Ignitor
Gas Burner
Manifold
Fuel Flow
Control Valve
Main Motorized
Gas Valve
W/POC
26 Sec.
Man Reset Low
Gas Pressure
Switch
Field Piped
Manual Ball
Valve
Vent To Outside
Atmosphere
Manual Test
Valve
Gas
Supply
UL Modulation Gas Piping Diagram - 5,001 to 12,500 MBH Firing Rate
M
Manual
Test Valve
S
S
Test
Connection
Gas Pressure
Regulator
Manual
Ball Valve
L H
Main Solenoid
Gas Valve
Man Reset High
Gas Pressure
Switch
Vent
POC
722005
722005
Field Piped
Pilot Manual
Ball Valve
Pilot Gas
Pressure
Regulator
Pilot Solenoid
Valve
Gas Pilot
Ignitor
Gas Burner
Manifold
Fuel Flow
Control Valve
Man Reset
High Pressure
Switch
Man Reset Low
Gas Pressure
Switch
Field Piped
Manual Ball
Valve
Vent To Outside
Atmosphere
Manual Test
Valve
Gas
Supply
FM Modulation Gas Piping Diagram - 5,001 to 12,500 MBH Firing Rate
M
Manual Ball Valve
M
S
Test
Connection
Gas Pressure
Regulator
L
H
Main Motorized
Gas Valve
W/ POC
26 Sec.
Vent
Manual Test
Valve
Main Motorized
Gas Valve
14 Sec.
POC
722011
722011

Webster JBE Series Specifications

General

Brand	Webster
Model	JBE Series
Category	Burner
Language	English