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Interior
12-Volt Operation
The only thing you have to do is make sure the house
battery does not run down� In normal usage this
shouldn't be a problem since you would normally be
plugged into an external AC power source at night or
when camping� When you're plugged into shoreline
power or running the generator the inverter/charger
charges the battery and carries much of the load�
Some nights you may not find a place to plug into
city power� This should not be a problem; you can
comfortably run your lights, water pump, and vents in a
normal fashion without depleting the battery�
If you are not plugged into city power, and you plan
on staying longer than a day or two, you'll want to
conserve your battery by using as few lights and
appliances as possible� Check the monitor system
regularly� If you notice the lights becoming dim, it's
much easier on the battery if you start the generator or
run the chassis engine before the battery runs down�
The generator starts from the house battery� If the
house battery becomes depleted, the chassis engine
can be started to charge it� It should only take a few
minutes before the generator will start�
The engine battery and house battery are isolated from
each other by the Battery Separator, preventing the
two systems from drawing down simultaneously� They
will connect through the separator if charging from the
engine, generator, or inverter/charger is detected�
Power Center
The power center installed at the base of the
passenger side power ottoman� Open the decorative
door for access to 12-
volt
The power center is a completely self-contained
120-volt power distribution and energy management
system intended to be used in recreational vehicles� It
is housed in a sheet metal enclosure with a removable
front panel� It provides circuit protection for all the
120-VAC loads in the touring coach and works with the
Energy Management System to minimize the over-
loading and tripping of circuit breakers�
5-8
fuses and 120-volt breakers�
Refer to Section 9 - Maintenance for important battery
maintenance information�
The power center is a centralized power switching,
fusing, and distribution center. The potential
of lethal electrical shock is present in this box.
Inadvertent shorts at this box could result in
damage and/or injury. All servicing of this box
should be done by a qualified Service Technician.
Auxiliary Fuse Locations
In addition to the 12-volt fuses and breakers described
in this section, some components have additional
fuse protection as supplied or required by their
manufacturer� These locations include:
1� LP detector: 2-amp fuse behind detector
2� Battery Separator power line to engine battery:
150-amp in-line fuse inside Sprinter battery
compartment under the driver's floorboard
3� Monitor panel battery voltage display: under the
roadside jumper seat� (1 amp)
4� Inverter: 150-amp in-line fuse under the sofa on the
roadside�
5� Rear view camera: 1�5-watt in-line fuse under
drivers seat� (#11 fuse)
NOTE
Most fuses will require a qualified technician
to access and replace. Contact your dealer or
Airstream Service Center.
Multiplex System
The Multiplex System provides advanced automation
and mobile electrical solutions for your touring coach�
CZone® is a multiplex network system designed to
combine multiple signals across a media to reduce
wires and simplify end user control� The system
combines all desired functions and controls of the
touring coach into a central location�
Mode buttons allow for a single press of the button
to control several features of the trailer� Away mode
turns off the lights and lowers shades to prepare for
departure� Onboard mode will turn on lights and lift
shades
2020 Tommy Bahama Interstate Nineteen
WARNING
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