MONTGOMERY BOATS 340 SPORT YACHT, Owner'S Manual

Page: 47 / 191

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MONTEREY
BOATS
Electrical System
ELECTRIC SHOCK CAN CAUSE SEVERE INJURY OR
EVEN DEATH. DO NOT ATTEMPT TO CORRECT THE
WIRING YOURSELf. ALWAYS HAVE A QUALIfIED
ELECTRICIAN CHECK WIRING
KEEP CHILDREN AWAY fROM ANY ELECTRICAL
CAbLES OR EQUIPMENT AND ALWAYS USE
GROUNDED APPLIANCES ON bOARD YOUR
bOAT.
UNDETECTED fAULTS IN THE AC ELECTRICAL
SYSTEM COULD CAUSE THE WATER AROUND
THE bOAT TO bECOME ENERGIZED. THIS COULD
CAUSE A SEVERE SHOCK OR EVEN DEATH
TO SOMEONE IN THE WATER NEAR THE bOAT.
NEVER SWIM OR ALLOW SWIMMING AROUND
THE bOAT WHEN THE AC SYSTEM IS ACTIVATED
bY THE GENERATOR OR THE SHORE POWER
CONNECTION.
Disconnecting procedure for the shore power
connection:
Turn the main breakers on the AC panel and at
the inlets to the “OFF” position. Turn the discon-
nect breakers on the dockside outlet to the “OFF”
position.
Loosen the lock rings and rotate the plugs coun-
terclockwise to disconnect the cables from the
dockside outlets and replace the outlet caps.
Disconnect the cables from the boat and replace
the outlet caps. Store cables.
AC Accessory Breaker Panel
The AC panel is located in the mid cabin. The fol-
lowing is a description of the AC panel equipment
and the breakers that protect the accessories:
AC MAIN # 1 and MAIN # 2 Selector Switches
and Main Breakers
One shore cord supplies AC MAIN # 1 and one
shore cord supplies AC MAIN # 2. Both main
breakers protect the overall distribution network.
These breakers are very sensitive. The resulting
power surge, which occurs when connecting the
dockside cords, may cause the main breakers to
trip. To avoid this surge, always turn the main
breakers to the “OFF” position prior to plugging
or unplugging the shore power cord.
If your boat is equipped with the optional genera-
tor, these switches are used to select either shore
power or the generator to supply 120-volt power
to the AC breaker panel. When connected to dock-
side power, move the AC MAIN # 1 and AC MAIN
# 2 selector switches to the SHORE POSITION
and activate the SHORE POWER main breakers.
When using the generator, move the AC MAIN #
1 and AC MAIN # 2 selector switches to the gen-
erator position and activate the GENERATOR main
breakers. The main breakers must be in the “OFF”
position before the selector switches can be moved
to the GENERATOR or SHORE position.
Transfer Switch
A transfer switch is located on the main electrical
panel in the cabin that is used to supply electrical
current to AC SHORE MAIN #1 (which supplies
current to the AC accessory breakers) and AC
SHORE MAIN #2 (which supplies current to the
breakers for the air conditioning units) from one
shore power cord when only one dockside outlet
is available.
You will not be able to operate all 120-volt AC
accessories at one time and power management
practices will need to be observed when operat-
ing on one 30 amp shore power cord and outlet.
You should be aware of the load each accessory
draws and make sure you don’t overload the
circuit. Overloading the circuit can damage ac-
cessories and cause serious damage to the AC
electrical system.
The table at the end of this section will assist you
in documenting the load AC accessories on your
boat require and managing the electrical load on
the circuit.
AC Accessory Breaker Panel