Greenheck DGX - Page 46

46
Reference
Typical Gas Train Layout less than 400 MBH
Burner Differential
Pressure Sensor
(Airflow Switch)
Burner Manual
Shut-off Valve
High Gas
Pressure Test
Port
High Gas
Pressure Switch
(Optional)
Modulating
Valve
To Burner
Combination
Shut-off
Valve/Regulator
Low Gas
Pressure Test
Port
Low Gas
Pressure Switch
(Optional)
Gas
Connection
Reference
NOTE!
This is a typical gas train. The gas train in your unit may be different.
Figure 66. Direct Spark Gas Train