Generac Power Systems PowerPact 6561 Installation Notes page 28

The Demand regulator on the 8kW single cylinder generator only has one side. The twin cylinder 11 - 20kW
units have a two sided regulator.
Plumbing the Generator
 The Generator must be plumbed directly from the source, NOT off the end or tee of an existing
system.

Supply the Generator with 100% loaded BTU-rated fuel supply and pipe size.
 A minimum of one approved FULL FLOW manual shutoff valve must be installed in the gaseous fuel
supply line.

The valve must be easily accessible (not hidden under decks etc.). Local codes determine the proper
location.
A - Is a Full Flow Shutoff Valve. B - Is a Full Flow Shutoff Valve with a manometer port for making fuel
pressure checks without going into the generator enclosure.
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