90
ELECTRICAL SYSTEM OPERATION UNITY MOTORHOME
2
1
COACH BATTERIES (12 VOLT DC
POWER SUPPLY)
The coach batteries
3
supply power to all the 12
volt DC lights and equipment in the living area of your
motorhome. This includes the roof vents, refrigerator
(when operating in 12 volt DC mode), generator
starter, water pump, furnace fan, interior lights,
holding tank, water level gauges, etc.
The coach fuse block and the fuse for the solar panel
are located inside the chassis battery compartment�
Inside the fuse block, a cable
4
connects the Solar
Panel Fuse�
4
Fuses must be replaced with the same rating
and same type.
CAUTION
12 VOLT DC SYSTEM
The 12 volt DC power system in your motorhome
consists of the following two distinct, but interconnected,
battery systems
CHASSIS BATTERY
The chassis battery
1
operates the vehicle starter,
vehicle accessories and all vehicle controls on the
instrument console, such as the heater fans, exterior
lights, horn, speed control, windshield wipers, etc.
Disconnect the chassis battery cable when parking
the motorhome for an extended period of time� Refer
to the chassis operator’s manual in the Motorhome
Information Kit for the chassis battery quick
disconnect location�
Disconnecting the battery from the chassis
battery can clear the engine/transmission logic
modules. These modules will automatically
re-calibrate when you reconnect the battery
and start the engine.
NOTICE
CHASSIS BATTERY LOCATION
The chassis battery is located under the driver’s side
cab oor
1
�
1
A 150 amp fuse
2
located on the side of the
chassis battery, protects 12 volt DC coach
power system.
NOTICE
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