17
BATTERIES
The genset control and cranking circuits are nega-
tive (
−
) grounded and require a 12 volt battery. A kit
is available for isolated DC ground systems.
To prevent accidental starting of the genset during
installation, do not connect the battery cables at the
battery until it is time to start up the genset.
WARNING
Accidental or remote starting of the
genset can can cause severe personal injury or
death. Do not connect the starting battery until
it is time to start up the genset.
Batteries
See
Specifications
for minimum battery require-
ments.
Battery Charger (Optional)
See
Specifications
for charging rate.
Disabling Battery Charger
If it is necessary to disable battery charging for the
application, disconnect the leads marked
B1
,
B2
and
B+
from the quick-connect terminals on battery
charging voltage regulator A1 (Page 21). The reg-
ulator is mounted below and to the left of the ignition
coil. Insulate the end of each lead with several
wraps of listed electrical insulating tape and tie
them neatly in the wiring harness.
Battery Location and Mounting
Locate the battery where spills and leaks will not
drip acid on fuel lines, wiring or other equipment and
where ventilation is adequate to prevent the accu-
mulation of explosive gases.
WARNING
Arcing can ignite the explosive hy-
drogen gas given off by the battery, causing se-
vere personal injury. The battery compartment
must be ventilated and isolated from spark-pro-
ducing equipment.
Battery Cables
Size battery cables according to Table 2. Total cable
length is the sum of the lengths of the positive (
+
)
and negative (
−
) cables. In other words, total cable
length will be approximately twice the distance be-
tween the battery and the genset.
TABLE 2. BATTERY CABLE SIZES
TOTAL CABLE LENGTH,
FEET (METERS)
CABLE SIZE, AWG
10 (3)
4
14 (4.3)
3
18 (5.5)
2
22 (6.7)
1
30 (9.1)
1/0
WARNING
Sparks can ignite fuel leading to se-
vere personal injury or death. Do not run battery
cables and fuel lines together. Separate cables
and fuel lines with conduit or tubing if run
through the same opening. Do not tie together.
Genset Battery Terminals
Connect the cables from the battery to the genset at
the genset battery terminals mounted on the drip
pan (Page 23).
B+ Terminal Insulating Boots
Provide insulating boots over the B+ battery cable
terminals at the battery and at the genset to pro-
tected them from contact with metal objects that
could short to ground.
DC GROUNDING
Common Ground
The genset must be electrically bonded to the com-
mon grounding system of the boat in accordance
with applicable regulations. Connect the bonding
cable to the genset bonding lug mounted on the drip
pan (Page 23).
WARNING
Faulty bonding of the genset to the
common grounding system of the boat can lead
to fire or explosion, resulting in severe personal
injury or death.
Redistribution or publication of this document,
by any means, is strictly prohibited.
