Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05
23
Step 5:
Gas Valve Train
Selection
Figures 3.9 and 3.10 illustrate gas valve trains for single and staged
burner systems respectively.
The typical main gas valve train for a staged burner has the same valve
layout as a single burner except each burner has an individual sole-
noid valve to independently shut down each section. A common gas
shut-off valve train can be used.
Figure 3.9 Single-Staged Burner Valve Layout
Main Gas
Control
Valve
Main Burner
Shut-Off Valve
Pilot
Shut-Off
Valve
Pilot
Gas
Pilot
Pressure
Regulator
Solenoid
Valve
Adjustable
Gas Cock
OR
Adjustable
Orifice Valve
& Gas Cock
Manual
Butterfly
Valve
Main
Gas
(from shut-off
valve train)
Duct Wall
Flexible
Nipple
Pipe
Union
Flexible
Nipple
Pipe
Union
