valutazioni - 2, GPA: 3
(
)
)
|
Facilità d'uso
Once the installation is complete, do nothing that may result in noncompatibility between the generator and connected electrical loads. 1.7.2 ENGINE Make........................................................General Motors Displacement ................................4.3 liters (262 cu. in.) Cylinder Arrangement ................................................V-6 Valve Arrangement..................................Overhead Valves Firing Order ..................................................1-6-5-4-3-2 Number of Main Bearings ..............................................4 Compression Ratio ..............................................9.4-to-1 No. of Teeth on Flywheel............................................168 Ignition System ................................................Electronic Ignition Timing at 1,800 rpm ..............40 degrees BTDC Rated Horsepower at 1,800 rpm..................................67 Spark Plug Gap ..............................0.045 inch (1.1 mm) Recommended Spark Plugs ......AC 41-932 or equivalent Oil Pressure ......................................................30-50 psi Crankcase Oil Capacity ..............4.5 U.S. quarts (4.25 L) Recommended Engine Oil ............................SAE 15W-40 Type of Cooling System ......Pressurized, closed recovery Cooling Fan ..................................................Pusher Type Cooling System Capacity ..............4.5 U.S. gallons (17 L) Recommended Coolant ..................Use a 50-50 mixture of ethylene glycol and soft water. Fuel Consumption Natural Gas 004373-1 & 004626-0 ........................................720 cfh LP Gas 004373-1 & 004626-0..............................288 cfh/7.9gph 1.8 FUEL REQUIREMENTS AND RECOMMENDATIONS With LP gas, use only the vapor withdrawal system. This type of system uses the vapors formed above the liquid fuel in the storage tank. Recommended fuels should have a Btu content of at least 1,000 Btus per cubic foot for natural gas; or at least 2,520 Btus per cubic foot for LP gas. Ask your fuel supplier for the Btu content of your fuel. Fuel pressure for both natural gas and liquid propane setups should be 11 inches to 14 inches of water column (0.6 psi) at all load ranges. Gaseous fuels such as natural gas and liquid propane (LP) gas are highly explosive. Even the slightest spark can ignite such fuels and cause an explosion. No leakage of fuel is permitted. Natural gas, which is lighter than air, tends to collect in high areas; LP gas is heavier than air and tends to settle in low areas – install leak detectors accordingly. 1.8.1 CONVERSION TO LP GAS VAPOR The generator is shipped from the factory configured for using natural gas as fuel. To convert the fuel system to LP gas, proceed as follows (Figure 1.5). 1. Remove end cap from the pressure reducer valve. 2. Turn the tension screw counterclockwise until all tension is removed from the inner spring. 3. Install and tighten the end cap. 4. Invert the pressure reducer valve. In other words, turn it upside down (end cap facing downward). 5. Purge and leak test the entire fuel system according to gaseous fuel codes. NO LEAKS can appear at any point in the system. Figure 1.5 – Conversion to LP Gas Vapor Section 1 — General Information Guardian Liquid-cooled 40 kW Generator Section 1 — General Information Guardian Liquid-cooled 40 kW Generator 1.9 ENGINE OIL RECOMMENDATIONS The unit has been filled with 15W-40 engine oil at the factory. Use a high-quality detergent oil classified “For Service CC, SD, SE or SF.” Detergent oils keep the engine cleaner and reduce carbon deposits. Use oil having the following SAE viscosity rating, based on the ambient temperature range anticipated before the next oil change: Temperature Oil Grade(Recommended) Above 80. F (27. C) SAE 30W or 15W-40 32. to 80. F (-1. C to 27. C) SAE 20W-20 or 15W-40 Below 32. F (0. C) SAE 10W or 15W-40 ! Any attempt to crank or start the engine before it has been properly serviced with the recommended oil may result in an engine failure. 1.10 COOLANT Use a mixture of half low silicate, ethylene glycol base antifreeze and half soft water. Use only soft water and only low silicate antifreeze. If desired, add a high quality rust inhibitor to the recommended coolant mixture. When adding coolant, always add the recommended 5050 mixture. Do not remove the radiator pressure cap while the engine is hot or serious burns from boiling liquid or steam could result. Ethylene glycol base antifreeze is poisonous. Do not use mouth to siphon coolant from the radiator, recov ery bottle or any container. Wash hands thoroughly after handling. Never store used antifreeze in an open container because animals are atracted to the smell and taste of antifreeze even though it is poison ous to them. Do not use any chromate base rust inhibitor with eth ylene glycol base antifreeze, or chromium hydroxide (“green slime”) will form and cause overheating. Engines that have been operated with a chromate base rust inhi...