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Anleitung Zusammenfassung
See “Compensating for Restrictions.” For conventional compartment mounted units, the air inlet is generally provided in the compartment door. Figure 2.10 — Air Inlet in Compartment Door IMPORTANT: IF PLANNING TO INSTALL THE GENERATOR IN A COMPARTMENT, BE SURE TO LEAVE AT LEAST ONE INCH (2” recommended) OF CLEARANCE BETWEEN THE GENERATOR AND COMPARTMENT WALLS AND CEILING. INCLUDE 26 GAUGE GALVANIZED STEEL LINING AND SOUND INSULATION WHEN MEASURING FOR THIS 1 INCH (2” recommended) CLEARANCE. When the unit is installed on a suspended mounting system, one of several different methods of supplying air flow may be used as follows: • Provide a door in the vehicle skirt having an air inlet opening (Figure 2.11). Figure 2.11 — Suspended Mount Inlet Door • Using ductwork (Figure 2.12). The installer must be sure air is available to the top of the generator since air inlets are located at the top. Figure 2.12 — Air Inlet Using Ductwork • By providing an opening in the vehicle skirt and space above the generator for cooling air flow (Figure 2.13). Recommended clearance above the top of the generator is at least 2 inches. Figure 2.13 — Air Inlet in Vehicle Skirt . 10 Square Inches (Optional Openings) 40 Square Inches (Minimum Opening) Generac® Power Systems, Inc. 25 Section 2 – Installation IMPACT-36 plus II Recreational Vehicle Generator 2.3.3 COMPENSATING FOR RESTRICTIONS Such materials as screening, louvers, or expanded metal can restrict the free flow of air. Compensate for this restriction by making the actual air opening proportionately larger. Some materials may offer only a 60 percent “free air inlet area.” Other more efficient materials may provide up to a 90 percent free air inlet area. The percentage of free air inlet opening is usually available from the material supplier or manufacturer. TO DETERMINE THE ACTUAL AIR INLET OPENING SIZE REQUIRED, DIVIDE 40 SQUARE INCHES BY THE PERCENTAGE OF FREE AIR INLET AREA FOR THE MATERIAL USED. For example: If planning to use screening with an 80% free air inlet area, divide 40 by 0.8, which results in 50 square inches. Minimum actual size of air inlet opening in this case is 50 square inches. An opening that measures 4 inches wide by 12-1/2 inches long provides the required air flow (4 x 12.5 = 50 square inches). 2.3.4 INVERTER LOCATION The inverter should be located in a dry, well ventilated area in order for the inverter to work effectively. Approximately eight inches of space should be allowed at each end of the inverter for adequate ventilation. IT SHOULD NOT BE LOCATED IN THE SAME COMPARTMENT AS THE GENERATOR. The sensing harnesses supplied with the inverter have a maximum length of 12 feet. If the cables are longer than needed, coil the excess near the inverter unit. If a greater length is needed, contact Generac. DO NOT ATTEMPT TO SHORTEN OR LENGTHEN THE SUPPLIED sensing harnesses. The DC power wires may be cut to the required length. Allow enough length to make connection. Coil excess inside J-Box. 2.3.5 TESTING THE INSTALLATION Generac recommends testing the installation to be sure adequate cooling air flow is available to the unit before placing the unit into service. If the unit shows signs of overheating, enlarge the air openings. Never place a unit into service until absolutely certain that cooling and ventilation is adequate. IMPORTANT: TEST THE INSTALLATION, ESPECIALLY IF BRINGING IN AIR FROM BELOW THE GENERATOR SET. 2.4 PROPANE GAS FUEL SYSTEM 2.4.1 PARTS NOT INCLUDED IN FUEL SYSTEM The propane fuel system does NOT include such items as (a) gas tank, (b) gas piping, (c) fittings, (d) valves, and (e) primary regulator, used to store the gaseous fuel and deliver it to the gaseous fuel solenoid (Figure 2.15). Figure 2.15 — Diagram of LP Gas System Use only approved components in the gas supply system. All components must be properly installed in accordance with applicable codes. Improper installation or use of unauthorized components may result in fire or an explosion. Follow approved methods to test the system for leaks. No leakage is permitted. Do not allow fuel vapors to enter the vehicle interior. DANGER . . . . Section 2 – Installation IMPACT-36 plus II Recreational Vehicle Generator . 2.4.2 SOME IMPORTANT CONSIDERATIONS When installing an LP gas system, consider seriously the following items: • All fittings, lines, hoses and clamps must be tight and free of leaks. Apply a pipe sealant to threads when assembling threaded connections. This reduces the possibility of leakage. Test the entire fuel system for leaks, using approved test methods. • Optimum gas pressure at the inlet to the gaseous fuel solenoid valve and secondary regulator is 11 inches water column. • The installer’s fuel supply connection point is at the gaseous fuel solenoid valve. This is a 3/4 inch (female) connection. Provide a suitable 3/4 inch NPT (male) connector to attach to the fuel supply line. • Use a length of approved flexible fuel hose between gaseous fuel solenoid valve and ri...