GE 20 kW Home, Installation And Start-Up Manual

21

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.

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.

•  Before placing the generator into service, the fuel system lines 

must be properly purged and leak tested.

•  No leakage is permitted.

NOTICE 

 The supplied flexible steel fuel line is not to be installed 

underground or in contact with the ground.

 • 

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.

•  The piping should be of a material that conforms 

to federal and local codes, rigidly mounted and 
protected against vibration.

•  Piping should be protected from physical damage 

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.
 

•  Install the flexible 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.

the Gaseous fuel system

B

C

E

D

F

A

•  A union 

c

 or flanged connection shall be provided 

downstream to permit removal of standby.

•  A manometer port should be provided 

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.

•  Where the formation of hydrates or ice is known to 

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.

•  A minimum of one accessible, approved manual 

shutoff valve       shall be installed in the fuel supply 
line within 6 ft. (180 cm) of the home generator. 

•  A manual fuel shut-off valve should be installed in the 

interior of the building.

•  Where local conditions include earthquake, 

tornado, unstable ground, or flood hazards, special 

consideration shall be given to increase strength and 
flexibility of piping supports and connections. 
• 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.

•  Use a pipe sealant or joint compound approved for 

use with NG/LPG on all threaded fittings to reduce the 
possibility of leakage.

•  Installed piping must be properly purged and 

leak tested, in accordance with applicable codes 
and standards.

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.

•  LP gas is heavier than air and will settle in low areas.
•  Natural gas is lighter than air and will collect in high areas.
•  The slightest spark could ignite these fuels and cause an explosion.
•  DO NOT light a cigarette or smoke.

E

NOT 

for 

REPRODUCTION