Product Manual A

4. Installation7-2018

WARNING

Gaseous fuels are flammable, explosive, and can cause severe personal

injury or death. Do not smoke if you smell gas, are near fuel tanks for fuel-

burning equipment, or are in an area sharing ventilation with such

equipment. Keep flames, sparks, pilot lights, electrical arcs, arc-producing

equipment and all other sources of ignition well away. Keep a type ABC fire

extinguisher handy.

In all fuel system installations, cleanliness is extremely important.

• Make every effort to prevent fuel contamination from:

◦ Moisture

◦ Dirt

◦ Excess thread sealant

◦ Contaminants of any kind

• Clean all fuel system components before installing.

Gaseous-fuel supply system design, materials, components, fabrication, assembly,

installation, testing, inspection, operation, and maintenance must comply with the

applicable codes. See NFPA Standards No. 37, 54, and 58. For seismic installation,

refer to the seismic label. Where seismic installation is required, there may be

specific anchorage requirements for the generator set and other installed

components.

Most codes require a manual shutoff valve ahead of a flexible fuel hose. The

manual valve should be of the indicating type. The generator set has electric

(battery-powered) shutoff valves included.

NOTICE

It is recommended that a shutoff valve be located near the generator set for

emergency shut off or servicing the generator set. Follow applicable codes.

Until the generator set is connected, cap the fuel line stub-up at the generator set to

prevent dirt from entering and gas from discharging if the gas supply shutoff valve is

opened accidentally.

To determine the required capacity, refer to the Fuel Line Selection section.

Natural Gas Fuel System

Requirements for a natural gas generator set are as follows:

• Adequate fuel supply to operate correctly and run at full load

• Pipeline quality gas

• The length of the fuel supply pipe from the gas service entrance to the

generator set must be known to determine the correct fuel pipe size (refer to

the Fuel Line Selection charts)