7General Information1.4 Emission Information Continued...For generators 14kW and greater, the Emission Control Systemcode is EM (Engine Modification) and consists of the followingcomponents:• Air Induction System~ Intake Pipe / Manifold~ Air Cleaner• Fuel Metering System~ Carburetor / Mixer Assembly~ Fuel Regulator• Ignition System~ Spark Plug~ Ignition Module• Exhaust System~ Exhaust Manifold~ Muffler1.7 READY TO RUNThe "Ready to Run" on the display is ready when all of the followingconditions are true:1. The AUTO/OFF/MANUAL switch is set to the AUTO position.2. The utility voltage being supplied to the unit is being sensedby the PCB. If the utility sense voltage is not connected to theunit or if it is below approximately 150-160 volts AC, thenthe system will display the message "No Utility Present". Thisindicates that if the AUTO/OFF/MANUAL switch is placed inthe Auto position, the generator will start.3. No alarms are present, for example, low oil pressure, hightemperature, etc.1.8 FUEL REQUIREMENTS ANDRECOMMENDATIONSWith LP gas, use only the vapor withdrawal system. This type ofsystem uses the vapors formed above the liquid fuel in the storagetank.The engine has been fitted with a fuel carburetion system thatmeets the specifications of the 1997 California Air ResourcesBoard for tamper-proof dual fuel systems. The unit will run onnatural gas or LP gas, but it has been factory set to run on naturalgas. Should the primary fuel need to be changed to LP gas, thefuel system needs to be reconfigured. See the reconfiguring theFuel System section for instructions on reconfiguration of the fuelsystem.Recommended fuels should have a Btu content of at least 1,000Btus per cubic foot for natural gas; or at least 2,520 Btus percubic foot for LP gas. Ask the fuel supplier for the Btu content ofthe fuel.Required fuel pressure for natural gas is five (5) inches to seven(7) inches water column (0.18 to 0.25 psi); and for liquid pro-pane, 10 inches to 12 inches of water column (0.36 to 0.43 psi).The primary regulator for the propane supply is NOT INCLUDEDwith the generator.NOTE:All pipe sizing, construction and layout must comply with NFPA54 for natural gas applications and NFPA 58 for liquid propaneapplications. Once the generator is installed, verify that the fuelpressure NEVER drops below five (5) inches water column fornatural gas or 10 inches water column for liquid propane.Prior to installation of the generator, the installer should consultlocal fuel suppliers or the fire marshal to check codes and regula-tions for proper installation. Local codes will mandate correct rout-ing of gaseous fuel line piping around gardens, shrubs and otherlandscaping to prevent any damage.Special considerations should be given when installing the unitwhere local conditions include flooding, tornados, hurricanes,earthquakes and unstable ground for the flexibility and strength ofpiping and their connections.Use an approved pipe sealant or joint compound on all threadedfitting.All installed gaseous fuel piping must be purged and leak testedprior to initial start-up in accordance with local codes, standardsand regulations.1.9 FUEL CONSUMPTIONUnit Nat. Gas LP Vapor1/2 Load Full Load 1/2 Load Full Load7/8 kW 77 140 0.94/34 1.68/629/10 kW 102 156 1.25/46 1.93/7013/14 kW 156 220 1.56/58 2.30/8416/17 kW 183 261 1.61/59 2.57/9418/20 kW 206 294 1.89/69 2.90/106* Natural gas is in cubic feet per hour.** LP is in gallons per hour/cubic feet per hour.*** Values given are approximate.Verify that gas meter is capable of providing enough fuel flow toinclude household appliances.1.9.1 BTU FLOW REQUIREMENTS - NATURAL GASBtu flow required for each unit based on 1000 Btu per cubic foot.• 7kW — 140,000 Btu/Hour• 9kW — 156,000 Btu/Hour• 13kW — 220,000 Btu/Hour• 16kW — 261,000 Btu/Hour• 18kW — 294,000 Btu/Hour