Install Manual

4. Installation 8-2019
34 A062J678 (Issue 2)Copyright © 2019 Cummins Inc.
Component Description
Primary Pressure
Regulator
Located at the tank outlet, the primary regulator reduces the tank
pressure to the working pressure in the fuel supply line. Primary and
secondary regulators must be properly matched for a safe and functional
system. Consult with your propane supplier to ensure that the regulators
are properly sized.
Secondary
Pressure
Regulator
Located near the generator set, the secondary regulator reduces the
higher line pressure to a working pressure of 6 - 12 inch water column
(1.5 - 3.0 kPa). Higher pressure before the secondary regulator is
necessary to ensure that there is enough fuel available at the secondary
regulator for a fully loaded generator set. Always install this generator
set’s service regulator above the expected snow line.
Fuel Line Connects to the fuel supply. It must be sized properly using the propane
fuel line sizing charts (see the Fuel Line Selection appendix).
Installation must comply with all national, state, and local codes.
Flexible Fuel Line Protects the fuel system from vibration, expansion, and contraction. Must
meet code requirements for application and be installed per
manufacturer instructions.