MARLOW-HUNTER MH31, Operator'S Manual

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DC Electric Systems
7.10
vidual light components (see also the Boating Safety
chapter of this manual for additional information on navi-
gational lighting):
Running lights - the standard starboard (green), port
(red) lights and stern (white) lights located on the
deck
Anchor light - the 360 degree light located on the top
of the mast
Steaming light - the 225 degree light located on the
the top of the mast under the anchor light.
A 5 amp switch breaker provides power to the running
lights. It is labeled “RUNNING LIGHTS” on the panel and
protects this system from a power fault.
Control of the anchor light and steaming light is through
a vertical 3-position toggle switch. Setting the switch in
the up position will illuminate the anchor light; middle
position is off; down position will illuminate the steaming
light. When either light is illuminated, an LED light on
the toggle switch will illuminate to indicate an energized
system. A 5 amp pop-out breaker located to the left of
the toggle switch protects the anchor light/steaming light
circuitry from a power fault.
The nav light configuration will depend on the status of
the boat at night:
Anchored - anchor light only
Under sail - running lights and steaming light
Under power - running lights and anchor light
7.3.2.2.2 Boat Based Visibility Lighting - Cockpit
and Cabin Lights Breaker
Cabin lights, cockpit storage light and optional arch
speaker pod light are all energized once the DC panel
is energized. A 20 amp reset breaker labeled “CABIN
LIGHTS” protect these circuites from a power fault.
Individual wall or fixture switches allow lights ON/OFF.
One single switch wall light plate (left plate Fig. 7.17)
exists in the galley and is located on the upper cabinet
lower face. The switch controls the dish rack mini light
located within the upper galley cabinet.
The balance of the interior light fixtures (also cockpit stor-
age and optional arch speaker pod light) have ON/OFF
switches on the fixture. Refer to Figure 7.20 for light
fixture location and details.
1.
2.
3.
1.
2.
3.
Figure 7.17
7.3.2.3 Fresh Water Pump Breaker
This 10 amp switch breaker controls power to the fresh
water pump. It is labeled “WATER PUMP” on the DC
Panel and protects it from a power fault. The water pump
pressurizes the fresh water system (refer to the Water
Systems chapter in this manual for additional details).
NOTE: Consult the pump manufacturers’ OEM manual for
pump operation, care and maintenance.
7.3.2.4 GPS/Chartplotter Switch/Breaker
This 10 amp switch breaker controls power to the optional
chartplotter ( wide-screen display). It is labeled “GPS” on
the panel and protects the chartplotter from a power fault.
The GPS is generally bundled with the chartplotter (with
or without radar).
NOTE: Consult the chartplotter manufacturers’ OEM manual
for instrument operation, care and maintenance.
7.3.2.5 Autopilot/Instruments Switch/Breaker
This 5 amp switch breaker controls power to the standard
knot/depth display and/or the optional Autopilot compo-
nent and protects them from a power fault. It is labeled
“INSTRUMENTS” for only the knot/depth display and
“AUTOPILOT” for the optional autopilot and knot/depth
display (unless the optional chartplotter is installed).
NOTE: Consult the instrument manufacturers’ OEM manual for
instrument operation, care and maintenance.
7.3.2.6 Panel Lights Switch
Half way down the right side of the panel is the two-posi-
tion toggle switch (“ON-OFF”) for panel lights. The power
for the panel backlights for both the DC panel and AC