Generac Power Systems 5251 Battery Requirements, Battery Installation, ‹ 1.10.2 TRANSFER SWITCH

Section 1 — General Information

Air-cooled Generators

•Install the generator as close as possible to the fuel supply, to reduce the length of piping.

•Install the generator as close as possible to the transfer switch. REMEMBER THAT LAWS OR CODES MAY REGULATE THE DISTANCE AND LOCATION.

•The genset must be installed on a level surface. The base frame must be level within two (2) inches all around.

•The generator is typically placed on pea gravel or crushed stone. Check local codes if a concrete slab is required. If a concrete base slab is required, all federal, state and local codes should be followed. Special attention should be given to the concrete base slab which should exceed the length and width of the generator by a minimum of six (6) inches (0.152 meters) on all sides.

Figure 1.9 – Generator Clearances

The engine exhaust fumes contain carbon mon- oxide, which can be DEADLY. This dangerous gas, if breathed in sufficient concentrations, can cause unconsciousness or even death. This exhaust system must be installed properly, in strict compliance with applicable codes and stan- dards. Following installation, do nothing that might render the system unsafe or in noncompli- ance with such codes and standards.

•Operate the generator outdoors ONLY.

•Keep exhaust gases from entering a confined area through windows, doors, ventilation or other openings (Figure 1.9).

‹1.10.2 TRANSFER SWITCH

1.10.2.1 7, 10, 13, and 16 kW Units (if equipped)

The transfer switch shipped with this generator is enclosed in a NEMA 1 enclosure. This type of enclo- sure is intended for indoor use only. Follow these rules:

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•Install the transfer switch indoors on a firm, sturdy supporting structure.

•To prevent switch distortion, level the switch if necessary. This can be done by placing washers between the switch enclosure and mounting sur- face.

•Never install the switch where water or any corro- sive substance might drip onto the enclosure.

•Protect the switch at all times against excessive moisture, dust, dirt, lint, construction grit and corrosive vapors.

If the AUTO/OFF/MANUAL switch is not set to its OFF position, the generator can crank and start as soon as the battery cables are connected. If the utility power supply is not turned off, spark- ing can occur at the battery posts and cause an explosion.

1.11 BATTERY REQUIREMENTS

See the Specifications section for correct battery size and rating.

1.12 BATTERY INSTALLATION

Fill the battery with the proper electrolyte fluid if necessary and have the battery fully charged before installing it.

Before installing and connecting the battery, complete the following steps:

1.Set the generator's AUTO/OFF/MANUAL switch to OFF.

2.Turn off utility power supply to the transfer switch.

3.Remove the 15A fuse from the generator control panel.

Battery cables were factory connected at the genera- tor (Figure 1.10). Connect cables to battery posts as follows:

4.Connect the red battery cable (from starter con- tactor) to the battery post indicated by a positive, POS or (+).

5.Connect the black battery cable (from frame ground) to the battery post indicated by a nega- tive, NEG or (—).

NOTE:

Dielectric grease should be used on battery posts to aid in the prevention of corrosion.

NOTE:

Damage will result if battery connections are made in reverse.