Powermate P2701, P3201, P2201 owner manual Fuel Hookup, Natural Gas NG

FUEL HOOKUP

After electrical connections are complete, the next installation step is to connect a fuel supply to the unit. The fuel inlet fitting supplied with the generator is male 3/4" NPT. To accommodate potential settling of the generator relative to rigid supply pipeline, use of a flexible line, provided by manufacturer, in the supply line is suggested. When making connections, use only materials rated for the fuel supplied and approved for use by local, regional or national codes and/or regulatory agencies.

DANGER

•All fuel system installations MUST BE done by a licensed plumber or licensed gas technician and must comply with all applicable codes, standards and regulations.

WARNING

•Natural Gas and Propane Vapor are highly explosive gases. Check ALL fuel system connections for leaks before starting engine/generator set.

•DO NOT use a flame to check for leaks.

•Use approved equipment and methods to check for leaks.

Natural Gas (NG)

Units are tested with natural gas before they leave the factory. If natural gas is to be used, no adjustments are required.

When supplying natural gas as the operating fuel, provide fuel with a minimum of 1000 BTU/ft3 at inlet pressures between 6" and 11" of water column (4 - 6 oz). Failure to meet these minimums will cause the generator to run poorly and/or may limit output to values below nameplate value. If fuel with these qualities is not available, contact the customer service center.

Refer to the Fuel Consumption Table on page 13 for fuel flow requirements for the unit installed. Size all feeding piping to deliver sufficient flow above the minimum pressure of 6" water column (4 oz).

Per the National Gas Code (NFPA 54 - ANSI 2223.1), a manual shutoff valve in the fuel supply line to the generator is recommended.

Propane Vapor (LPG)

In cases where liquefied propane vapor is selected as the fuel of choice, the following steps need to be followed for hookup.

Engine Timing for LP

1.Connect timing light to spark plug wire #1, power leads to 12V DC power source(FIG 1).

2.Loosen hold down clamp bolt on distributor (FIG. 2).

NOTE: DO NOT REMOVE!

3.Start generator - ensure all wires from timing light are free from all moving parts.

4.While generator is operating in a no load condition use timing light to obtain engine timing (FIG. 4).

5.Rotate distributor cap (FIG. 3) slowly to obtain timing of 26 degrees BTDC(36 degrees BTDC for natural gas).

6.Retighten hold down clamp bolt (FIG. 2) - DO NOT MOVE DISTRIBUTOR CAP WHILE RETIGHTENING BOLT.

7.Reverify timing after tightening hold down clamp.

FIG. 1

FIG. 2

FIG. 3

FIG. 4

14 200-2653