Section 2 – Installation
◆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 pro- portionately larger.
Some materials may offer only a 60 percent “free air inlet area.” Other more efficient materials may pro- vide up to a 90 percent free air inlet area. The per- centage of free air inlet opening is usually available from the material supplier or manufacturer.
2.4PROPANE 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 sole- noid (Figure 2.15).
TO DETERMINE THE ACTUAL AIR INLET OPEN- | Figure 2.15 — Diagram of LP Gas System | ||
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ING SIZE REQUIRED, DIVIDE 40 SQUARE INCH- |
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ES BY THE PERCENTAGE OF FREE AIR INLET |
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AREA FOR THE MATERIAL USED. |
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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
◆ 2.3.4 INVERTER LOCATION
The inverter should be located in a dry, well ventilat- ed 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 ven- tilation. 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
◆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, ESPE- CIALLY IF BRINGING IN AIR FROM BELOW THE GENERATOR SET.
DANGER
Use only approved components in the gas supply system. All components must be prop- erly installed in accordance with applicable codes. Improper installation or use of unau- thorized 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.
Generac® Power Systems, Inc. 25
