The Gaseous Fuel System
The information below is provided to assist gaseous fuel system technicians in planning installations. In no way should this information be interpreted to override applicable fuel gas codes. Consult with your local fuel supplier or Fire Marshall if questions or problems arise.
WARNING Propane and Natural Gas are extremely
flammable and explosive, which could cause
burns, fire or explosion resulting in death, serious injury and/or property damage.
t LP gas is heavier than air and will settle in low areas.
t Natural gas is lighter than air and will collect in high areas.
t The slightest spark could ignite these fuels and cause an explosion.
t DO NOT light a cigarette or smoke.
TO THE INSTALLER: Consult with the generator owner(s) and convey any technical considerations that might affect their installation plans before applying these general guidelines.
The following general rules apply to gaseous fuel system piping:
WARNING Propane and Natural Gas are extremely flammable
and explosive, which could cause burns, fire or
explosion resulting in death, serious injury and/ or property damage.
t Before placing the generator into service, the fuel system lines must be properly purged and leak tested.
t No leakage is permitted.
NOTICE The supplied flexible steel fuel line is not to be installed underground or in contact with the ground.
t The entire flexible steel fuel line must be visible for periodic inspection and must not be concealed within nor contact nor run through any wall, floor, or partition.
t 5IFQJQJOHTIPVMECFPGBNBUFSJBMUIBUDPOGPSNT
to federal and local codes, rigidly mounted and protected against vibration.
t 1JQJOHTIPVMECFQSPUFDUFEGSPNQIZTJDBMEBNBHF
where it passes through flower beds, shrub beds, and other cultivated areas where damage could occur.
NOTICE The illustration is representative of a typical installation. Your installation may differ.
t *OTUBMMUIFflexible steel fuel line (B) (supplied) between the generator fuel inlet port (A) and rigid piping
to prevent thermal expansion, contraction, or any standby movement from causing excessive stress on the piping material.
D
C
B E
A
F
A
t "VOJPO(C) or flanged connection shall be provided downstream to permit removal of standby.
t "NBOPNFUFSQPSUTIPVMECFQSPWJEFE(D). A digital manometer, P/N 19495, is available at your Briggs & Stratton service center. When the initial test runs are completed, the manometer is removed and the port is plugged. The manometer port permits temporary installation of a manometer to ensure that the engine receives the correct fuel pressure to operate efficiently throughout its operating range.
t 8IFSFUIFGPSNBUJPOPGIZESBUFTPSJDFJTLOPXOUP occur, piping should be protected against freezing. The termination of hard piping should include a sediment trap (F) where condensate is not likely to freeze.
t "NJOJNVNPGPOFBDDFTTJCMFBQQSPWFENBOVBM shutoff valve (E) shall be installed in the fuel supply line within 6 ft. (180 cm) of the home generator.
t "NBOVBMGVFMTIVUPGGWBMWFTIPVMECFJOTUBMMFEJOUIF interior of the building.
t 8IFSFMPDBMDPOEJUJPOTJODMVEFFBSUIRVBLF
tornado, unstable ground, or flood hazards, special consideration shall be given to increase strength and GMFYJCJMJUZPGQJQJOHTVQQPSUTBOEDPOOFDUJPOT t Piping must be of the correct size to maintain the required supply pressures and volume flow under varying generator load conditions with all gas appliances connected to the fuel system turned on and operating.
t 6TFBQJQFTFBMBOUPSKPJOUDPNQPVOEBQQSPWFEGPS use with NG/LPG on all threaded fittings to reduce the possibility of leakage.
t *OTUBMMFEQJQJOHNVTUCFQSPQFSMZQVSHFEBOE leak tested, in accordance with applicable codes and standards.
20
