User manual GENERAL ELECTRIC HGS INSTALLATION

[. . . ] We're pleased that you've placed your confidence in the GE brand. When operated and maintained according to the instructions in the operator's manual, your home generator will provide many years of dependable service. This manual contains safety information to make you aware of the hazards and risks associated with residential generator systems and how to avoid them. This generator system is designed and intended only for use as an optional home standby system that provides an alternate source of electric power and to serve loads such as heating, refrigeration systems, and communication systems that, when stopped during any power outage, could cause discomfort or inconvenience. [. . . ] Pipingmustbeofthecorrectsizetomaintainthe required supply pressures and volume flow under varying generator load conditions with all gas appliances connected to the fuel system turned on and operating. Before placing the generator into service, the fuel system lines must be properly purged and leak tested. Consider the following factors when planning the fuel supply system installaton: · Aminimumofoneaccessible, approvedmanual shutoff valve shall be installed in the fuel supply line within 6 ft (1. A union or flanged connection shall be provided downstream from this valve to permit removal of controls. Naturalgasfuelsupplypressureatthegenerator's fuel inlet port should be between 5 to 7 inches of water (in. Note: 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. If you need to change from natural gas to LP gas, the unit will need to be reconfigured, as described in Fuel Conversion. Amanualfuelshut-offvalvelocatedoutsidethe building, just before the generator unit. Wheretheformationofhydratesoriceisknownto occur, piping should be protected against freezing. The termination of hard piping should include a sediment trap where condensate is not likely to freeze. When the initial test runs are completed, the manometer is removed and the port is plugged. A typical final fuel connection assembly is shown here, where (a) is the fuel supply and (B) goes to the home generator. 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. For example, NFPA 54 National Fuel Gas Code, 2006 (Item #: 320-6031-06) is a common resource. The installer should consider the specific gravity of gas and compensate for a nominal amount of restriction from bends, fittings, etc. If an unusual number of fittings, bends, or other restrictions are used, refer to federal and local codes for guidance. Estimated fuel supply requirements at half and full load for natural gas and LP vapor fuels are shown here. C = Cubic feet per hour B = BTU's per hour Normal atmospheric state Boiling Point (in °f): initial end heating Value: Btu per gallon (net LhV*) Btu per gallon (gross**) cubic feet (gas) Density*** Weight octane number: research Motor Gross heat value does not consider heat lost in the form of water during combustion. *** Density is given in "Cubic Feet of Gas per Gallon of Liquid". Low Voltage connections to signal fault contacts, transfer switch communication, remote LED and auxiliary 12VDC power are made via a removable ten-pole connector plug. Compare this illustration with your generator to familiarize yourself with the location of these connections: A - fault contacts--UseNO, COMandNCtohookupa siren, light, etc. Contacts reverse state (NO goes to NC and vice versa) upon a fault condition. [. . . ] When the generator reaches a speed slower than 55 Hz for If any test procedure above does not cause the generator to shut down and display the indicated fault, repair the fault condition before putting the unit into service. The engine of your home generator system is factory calibrated to run on natural gas (NG). LP fuel inlet pressure must be between 11 and 14 inches water column at full load with all gas appliances turned on and operating. Should that voltage drop below a preset level, control board action will signal the engine to crank and start. [. . . ]