Electrical Connections
Installation Guidelines for 60 Hz PowerPact™ 27
Battery Requirements
Group U1, 12V, minimum 300 CCA (Generac Part No.
0D4575).
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. Verify generator has been turned OFF.
2. Turn off utility power supply to the transfer switch.
3. Remove the 7.5A fuse from the generator control
panel.
Battery cables were factory connected at the generator.
See Figure 6-3. Connect cables to battery posts as
follows:
4. Connect the red battery cable (from starter
contactor) to the battery post indicated by a
positive, POS or (+), using the fastener set
provided (see Figure 2-3).
5. Connect the black battery cable (from frame
ground) to the battery post indicated by a negative,
NEG or (–), using the fastener set provided.
6. Install the red battery post cover (included). See
Figure 2-3.
NOTE: Dielectric grease should be used on battery
posts to aid in the prevention of corrosion.
Figure 6-3. Battery Cable Connections
NOTE: In areas where temperatures fall below
32 °F
(0 °C
), a pad type battery heater is recommended to aid in
cold climate starting. This is available as a cold weather
kit through an Independent Authorized Service Dealer.
7. See Figure 6-4. Install the battery bracket (A) and
screw (B). The installed bracket is shown on the
right side of the figure.
(000137a)
WARNING
Explosion. Batteries emit explosive gases while charging.
Keep fire and spark away. Wear protective gear when
working with batteries. Failure to do so could result in
death or serious injury.
(000162)
WARNING
Explosion. Do not dispose of batteries in a fire. Batteries
are explosive. Electrolyte solution can cause burns and
blindness. If electrolyte contacts skin or eyes, flush with water
and seek immediate medical attention.
(000164)
WARNING
Electrical shock. Disconnect battery ground
terminal before working on battery or battery
wires. Failure to do so could result in death
or serious injury.
WARNING
Environmental Hazard. Always recycle batteries at an
official recycling center in accordance with all local
laws and regulations. Failure to do so could result in
environmental damage, death or serious injury.
(000228)
(000133)
WARNING
Explosion. Batteries emit explosive gases.
Always connect positive battery cable first to
avoid spark. Failure to do so could result in
death or serious injury.
BATTERY
12 VDC
001126
(–)
(+)
A. Negative (–) Black lead from frame
B. Positive (+) Red lead from starter contactor
A
B
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