Fuel Conversion/Gas Connections
24
Installation Guidelines for Air-Cooled Generators
8.
Check gas pressure at the generator fuel pressure regulator as follows:
– Close gas supply valve.
– Remove top test port from fuel pressure regulator.
– Install gas pressure tester (manometer). See Figure 5-5.
– Open gas supply valve.
– Verify that fuel pressure is within specification.
– Close gas supply valve.
Figure 5-5. Check Pressure with Manometer
Figure 5-6. Typical Natural Gas Installation
Top Gas Pressure Test Port
Fuel Pressure Regulator
Gas Pressure Manometer
0000001
Manual
Shut Off Valve
Sediment Trap
Gas Main
2-5 PSI
Size Gas Meter for
Generator Load Plus All
Appliance Loads
NG BTU = Cubic Feet/Hour X 1000
Fuel Pressure
3.5-7” Water Column
Flexible Fuel Line
With Pressure Port
Check Distance with Gas Provider
BTU and Pressure Decal
Megajoules = Cubic Meters/Hour X 37.26
For Underground Installations,
Verify Piping System
for Code Compliance
