Hunter H33 - Battery Switch Panel

Hu
nt
e
r
33
• D
C
Electric
7.
3
E
ac
h
b
atter
y
b
an
k
i
s w
i
re
d
to a
b
atter
y
se
l
ector sw
i
tc
h
located under the chart table. A circuit breaker
“
D
C
Main”
o
n the batter
y
switch panel connects the batteries to the
e
lectrical s
y
stem. The batteries suppl
y
power, first to
the batter
y
selector switch then to the 12 Volt D
C
Panel
which distributes power to such equipment as cabin
ligh
ts,
i
nstruments, an
d
accessor
i
es.
The ne
g
ative terminal o
f
all banks are attached to the D
C
Ground connection on the en
g
ine. This s
y
stem, known as
the ne
g
ative
g
round s
y
stem, is the approved s
y
stem
f
or
marine D
C
electrical s
y
stems. The batter
y
wirin
g
s
y
stem
h
as two co
l
or co
d
e
d
w
i
res.
Th
e
y
e
ll
ow w
i
re
i
s t
h
e
g
roun
d
(
ne
g
ative
)
, and the red wire is
(
positive
)
.
T
o avo
id
exp
l
os
i
ons,
d
o not use
j
umper ca
bl
es an
d
a
booster batter
y
to start the en
g
ine. I
f
batteries are dead,
then remove and rechar
g
e them ashore
.
Batteries produce h
y
dro
g
en and ox
yg
en
g
asses when
the
y
are bein
g
char
g
ed. These explosive
g
asses escape
throu
g
h the vent/fill caps and ma
y
form an explosive
atmosphere around the batter
y
i
f
ventilation is poor. This
g
as ma
y
remain around the batter
y
f
or several hours a
f
ter
c
har
g
in
g
. Sparks or flame can i
g
nite the
g
as and cause
an explosion
.
The followin
g
precautions must be taken
:
The wirin
g
to the batteries must have proper over
current protection in the form of fuse or breakers
.
U
se onl
y
batter
y
char
g
ers that have been listed b
y
a
test
i
n
g
a
g
enc
y
, suc
h
as
U
n
d
erwr
i
ters
L
a
b
orator
i
es,
In
c.
F
o
ll
ow t
h
e w
i
r
i
n
g
di
a
g
rams exact
ly.
T
o remove the batter
y:
Turn o
ff
all power drawin
g
breakers and isolate bat-
ter
y
.
R
emove ne
g
ative
(
-
)
cable
f
irst, then the positive
(
+
).
Wh
en
y
ou
i
nsta
ll
a
b
atter
y
, t
h
e
b
atter
y
connect
i
ons must
be made properl
y.
Attach the positive cable to the positive
(
+
)
terminal
o
n the batter
y.
•
•
•
1.
2.
1.
Attach the ne
g
ative cable to the ne
g
ative
(
-
)
terminal
o
n t
h
e
b
atter
y.
Note: Batteries should always be removed and installed by
trained, qualified persons to avoid all damages.
Table 1 Recommended Batteries
(
or equivalent
)
7.2.2 Batter
y
Switch Panel
The batter
y
banks are connected to a batter
y
selector
switch
(
Fi
g
. 7.1 shown without optional inverter
)
located
u
n
de
r t
he
cha
rt t
able
.
The selector switches are marked as to which batter
y
the
y
control. Turnin
g
the selector switch to the
O
ff posi-
tion turns power o
ff
to the respective circuits, likewise, the
O
n position turns power on.
Fi
g
ure 7.
1
The batter
y
switch panel houses the breakers for some
of
the main components in
y
our D
C
s
y
stem. The breaker
c
ontrols are marked at the switch panel, and control s
y
s-
tems or components on
y
our
b
oat t
h
at requ
i
re a connec-
tion that remains ener
g
ized even throu
g
h the Main Panel
ma
y
be de-ener
g
ized
.
The breakers and switches are described in
g
reater detail
2
.
M
F
G/
PN
G
roup
S
iz
e
Vo
lt
s
Q
t
y
Exi
de
Pr
e
-
v
a
il
e
r PV-
31
31
1
2
2