Electrical Systems
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5 • 1 4 8
EXECUTIVE
The 12 Volt house contains fuses (located in the bedroom over-
head cabinet) that protect the electrical circuits. These fuses are the
standard automotive type. When a fuse is “blown,” the wire in middle
of the plastic case will be burnt. A broken, bad or “blown” fuse must
be replaced with a fuse of the same rating and type. Use of a fuse
with a different rating or type will defeat the circuit protection provid-
ed by that fuse and could result in damage to the motorhome’s electri-
cal system.
The main disconnect switch is located inside the entry door. It is
installed to allow 12 Volt power from the domestic distribution panel
to be cut off at one location for dry camping and storage. This is not
the battery disconnect switch, but it will turn off the power to the
inside house 12 Volt DC bedroom fuse panel. If the interior lights do
not work, and the wall thermostat is not working, first check the 12
Volt battery cut-off switch.
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The 12 Volt fuses, located in this distribution panel, service the
interior house lighting, ventilation fans, monitor panel, furnace and
water heater. Should a fuse blow it will be evident by the broken metal
strip located in the center of the fuse. Replacement fuses should be of
the same amperage. If a higher rated fuse is installed it can damage the
wiring. Fuse current set points follow much of the same electrical prin-
ciple as the 120 Volt AC breakers.
Using 12 Volt DC as the electromotive force can make it more sus-
ceptible to outside influences, such as corrosion from weathering or
oxidation.
The large variety of applications this voltage can be used in makes
it a diet staple for most of the recreational vehicle and automotive
industries. The danger from shocks with this voltage is minimized, but
can still occur. A good example is when a magnetic field is generated,
then collapses when the power supply is cut. The result is a discharge
that can reach tens of thousands of volts for a short time period. Care
should be used when working with this voltage as current values can
be quite high, like in the case of a battery cables.
Shorting a battery cable to ground with a battery at a reasonable
state of charge can result in a fire or serious personal injury from a
burn.
House Distribution Panel &
Battery Cut-Off
Fuse Panel Label
Battery Cut-Off Switch.
FUSES
Amperage Chart.
ATO Fuse
Summary of Contents for Executive 2001
Page 1: ......
Page 6: ...E X E C U T I V E SECTION 1 WARRANTY INFORMATION...
Page 7: ......
Page 22: ...E X E C U T I V E SECTION 2 OPERATING SAFETY...
Page 23: ......
Page 46: ...E X E C U T I V E SECTION 3 APPLIANCES EQUIPMENT...
Page 47: ......
Page 106: ...E X E C U T I V E CHAPTER 4 WATER LP GAS SYSTEMS...
Page 107: ......
Page 129: ...Water LP Gas Systems EXECUTIVE 4 1 2 9 NOTES...
Page 130: ...E X E C U T I V E SECTION 5 ELECTRICAL SYSTEMS...
Page 131: ......
Page 177: ...Electrical Systems 5 1 7 7 EXECUTIVE N NO OT TE ES S...
Page 178: ...E X E C U T I V E SECTION 6 UNIT CARE MAINTENANCE...
Page 179: ......
Page 203: ...Unit Care Maintenance EXECUTIVE 6 2 0 3 NOTES...
Page 204: ...E X E C U T I V E SECTION 7 CHASSIS INFORMATION...
Page 205: ......