DUROMAX XP13000HXT User Manual page 39

Natural Gas Requirements
Note: Fuel pipe must be sized for full load. Required fuel pressure to generator fuel
inlet at all load ranges 6.0 - 9.0 in. water column for Natural Gas. BTU Content: 225,000
BTU at full load.
• Install the fuel supply system according to NFPA 37 and other applicable fuel-gas codes.
• Before placing the generator into service, the fuel system lines must be properly purged and
leak tested.
• NO leakage is permitted.
• DO NOT operate engine if smell of fuel is present.
• The piping material must conform to federal and local codes, be rigidly mounted, and be
protected against vibration.
• Piping should be protected from physical damage, especially where it passes through flower
beds, shrub beds, and other cultivated areas where damage can occur.
• For vapor fuels only: Where the formation of hydrates or ice is known to occur, piping should
be protected against freezing. The termination of hard piping must include a sediment trap
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 generator.
• You must install a manual fuel shut-off valve 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/LP on all threaded fittings to
reduce the possibility of leakage.
NOTICE: Keep thread sealant out of the gas piping to prevent component part damage.
Installed piping must be properly purged and leak tested, in accordance with applicable
codes and standards.
Installation
WARNING: Consult a licensed professional
natural gas plumber for proper installation.
TO THE INSTALLER:
The generator will require at least a 3/4" quick connect to
operate properly.
39 39