Generac Power Systems 004709-0 owner manual Electrical Connections, ‹ 2.5.2 Exhaust System Safety

Section 2 – Installation

‹2.5.2 EXHAUST SYSTEM SAFETY

•Maintain a clearance of at least 3 inches (76 mm) between exhaust system parts and any combus- tible material (such as wood, felt, cotton, organic fibers or other like material). If the 3-inch (76 mm) clearance cannont be maintained, locate, insulate or shield the exhaust part(s) so that the tempera- ture of any combustible material is not raised more than 117° F (65° C) above the ambient air temperature.

•Extend the exhaust system at least 1 inch (25 mm) past the outer edge of the vehicle. Do not terminate the exhaust system under the vehicle.

•Terminate the exhaust tailpipe such that exhaust gases will not be drawn back into the generator compartment and recirculated.

•If there is any possibility of the tailpipe or muffler being damaged, protect these damage-prone areas by means of a protective device (such as a skid bar).

•Install the generator exhaust system according to safe automotive practices.

•Use enough exhaust system hangers to prevent any part of the system from being dislocated.

•Use exhaust system parts recommended by the manufacturer. Using unapproved exhaust mufflers and exhaust system parts is the responsibility of the person(s) installing such unauthorized parts.

•Do not terminate the exhaust system under any opening, window or vent that can be opened or is not permanently sealed from the vehicle interior.

•Exhaust piping must be large enough to prevent excessive back pressure on the generator engine.

•Never tee the generator engine exhaust pipe into the vehicle engine exhaust piping. This causes excessive back pressure on the generator engine. Also, water from one engine can damage the other engine.

•Plan exhaust system installation carefully. Comply with all applicable codes, standards and regula- tions.

2.6 ELECTRICAL CONNECTIONS

The following general rules apply to electrical connec- tions in a recreational vehicle:

•Qualified electricians who are familiar with appli- cable codes, standards and regulations should install electrical wiring.

•The wiring should comply with codes, standards and regulations. The National Electrical Code (NFPA 70), and state and local codes apply.

Recreational Vehicle Generator

•Wiring must be of adequate size, have approved insulative qualities and be properly supported.

•Conduit and wire openings into the generator com- partment (if used) must be vapor-sealed to prevent entry of flammable, explosive or poisonous gases into the vehicle.

‹2.6.1 ELECTRICAL JUNCTION BOX

Install an approved, square electrical junction box with a blank cover on the interior or exterior wall of the area planned for installation of the generator (NOT on the generator). Route the generator's AC output leads into this junction box through approved flexible conduit. This is the point of first termination for generator AC output leads.

‹2.6.2 WIRING

•Wiring should be of stranded copper to reduce the chance that vibration may cause breakage.

•Wire gauge size should be large enough to handle at least 115 percent of the installed generator's rated maximum current.

•Neutral conductors must be the same size as other leg wires.

•Route power supply conductors from generator AC output leads (white), (black) and the green ground wire through approved flexible conduit to the elec- trical junction box on the compartment wall.

•If flexible metal conduit is used between the gen- erator and the compartment junction box, the con- duit end that terminates the compartment junction box must be vapor-sealed. Flexible metal conduit is NOT vapor tight along its entire length.

•From the junction box, route power supply wires through approved conduit to either (a) double-pole, double-throw transfer switch, or (b) approved iso- lation receptacle. Connecting to a transfer switch or isolation receptacle must prevent vehicle electri- cal circuits from being connected to two different power supplies at the same time (such as genera- tor and dockside power).

•Conductors must be rated 221° F (105° C) or must be of a larger conductor size.

‹2.6.3 GENERATOR AC CONNECTIONS

Generator AC output leads (BLACK) “hot” and (WHITE) grounded neutral come out of the generator as shown in Figure 2.13. There is also a green lead that connects to ground in the junction box of the recreational vehicle.

•Switches and circuit breakers should be of a type approved for use in recreational vehicles and must be mounted and installed to prevent damage from road shock.

Leads BLACK to WHITE are protected against over- load by a 30-amp circuit breaker (CB1). Use this line-to-neutral connection separately to operate 120- volt, single-phase, 60 Hertz, AC loads requiring up to 3,600 watts (3.6 kW) of power.

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