1.10 Electrical Connections; 1.11 Battery Installation - Generac Power Systems Stationary Emergency Generator Installation Manual

1.10 ELECTRICAL CONNECTIONS

1.10.1 GROUNDING THE GENERATOR
A GROUNDING LUG is provided on the generator mounting base
for the purpose of grounding the frame and the external electrically
conductive parts of this equipment to an approved earth ground
and/or grounding rods where required by the National Electrical
Code (Figure 1.12). Consult a qualified electrician for grounding
requirements in the area. Grounding procedures must meet local
regulations.
Do not connect the ground wire to any pipe that

carries a flammable or explosive substance –
FIRE or an EXPLOSION may result.
Proper grounding helps protect personnel against electrical shock
in the event of a ground fault condition in the generator or in con-
nected electrical devices. In addition, grounding helps dissipate
static electricity that often builds up in ungrounded devices.
Figure 1.12 – Generator Grounding Lug (typical)
1.10.2 BATTERY CHARGER CONNECTION
The generator has been equipped with a battery charger integrated
in the control panel. Power leads for the charger have been run to
the connection box (Figure 1.13). Connect the power leads for the
battery charger to the 120 VAC T1/LINE connection and the neutral
lead to the NEU connection. This is a 15 Amp circuit supplied by
the customer.
(Refer to the Connection Diagrams section in this manual, or the
wiring diagram in the Owner's Manual that is supplied with the
unit.)
GROUNDING
LUG
Figure 1.13 — Battery Charger Connection

1.11 BATTERY INSTALLATION

Standby generators installed with automatic

transfer switches will crank and start automati-
cally when NORMAL (UTILITY) source voltage is
removed or is below an acceptable preset level.
To prevent such automatic start-up and pos-
sible injury to personnel, do not connect battery
cables until certain that normal source voltage
at the transfer switch is correct and the system
is ready to be placed into operation.
Storage batteries give off explosive hydrogen

gas. This gas can form an explosive mixture
around the battery for several hours after
charging. The slightest spark can ignite the gas
and cause an explosion. Such an explosion can
shatter the battery and cause blindness or other
injury. Any area that houses a storage battery
must be properly ventilated. Do not allow smok-
ing, open flame, sparks or any spark producing
tools or equipment near the battery.
Battery electrolyte fluid is an extremely caustic

sulfuric acid solution that can cause severe
burns. Do not permit fluid to contact eyes, skin,
clothing, painted surfaces, etc. Wear protective
goggles, protective clothing and gloves when
handling a battery. If fluid is spilled, flush the
affected area immediately with clear water.
Do not dispose of the battery in a fire. The bat-

tery is capable of exploding.
Do not open or mutilate the battery. Released

electrolyte can be toxic and harmful to the skin
and eyes.
General Information
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