Inverter/Charger; Converter; 120-Volt Electrical System; City Power - Airstream Interstate Nineteen 2020 Owner's Manual

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Interior

Inverter/Charger

The Inverter/Charger is a DC to AC inverter and a 50-
amp multi-stage battery charger� The remote control
module is mounted in the rear roof locker above the
TV�
The Inverter/Charger charges the batteries and
converts 12-VDC to 120-VAC current for distribution
to the entertainment devices� To operate your
entertainment circuit the inverter must be ON, unless
connected to generator or shoreline power�
If power is not needed to the entertainment circuit
make sure the inverter is turned OFF to conserve
battery power� The inverter will have a slight power
draw even when turned off but the power consumption
will be even greater if left on�
NOTE
Airstream calibrates all settings at the factory and
recommends adjustments not be made.
An extensive owner's manual for the Inverter/
Charger is provided in the Airstream Owner's
Packet. Make sure to read, understand, and follow
all information, notes, Cautions, and Warnings in
the manual before operating the Inverter/Charger.

Converter

The Airstream converter system enables you to use the
12-volt lights and equipment whether operating on self-
contained battery power or hooked up to 120-volt city
power� The 12-volt light bulbs give off the same light
as regular household bulbs, so that when operating
on self-contained battery power, everything works
normally except the 120-volt convenience outlets and
120-volt appliances�
CAUTION
When operating with city power, make very certain
that the service is 120 volt, not 240 volt.
5-14
WARNING
The converter system is a transformer designed to
maintain constant output voltages regardless of the
variances that occur in city power systems� The design
eliminates the need for complex electronic sensing
systems to charge the batteries, minimizing the
possibility of failures and greatly increasing its overall
reliability�
In some older parks and other locations where three-
pronged outlets are not available, certain precautions
to ensure proper grounding and polarity must be taken�
These precautions are listed below:
1� Attach the three-pronged plug to a two-pronged
adapter� The third conductor line of this adapter
has a short wire lead that must be grounded�
2� For proper grounding, connect the short ground
lead to a grounded outlet box or to a cold water
pipe� When no water pipe is available, drive a
metal rod two feet into the ground and attach the
ground lug to it, thus providing the unit with proper
grounding�
NOTE
When the three-pronged plug can be used,
there will be no problems with proper polarity or
grounding with a properly-wired shoreline outlet.

120-Volt Electrical System

City Power

When your touring coach is hooked up to external AC
power, the converter system automatically charges
the touring coach batteries regardless of the battery
disconnect switch position� The speed and degree of
charge depends on how much power is used for lights
and appliances, as only the surplus goes to charging
the battery� If you are making an extended stay you
should keep your touring coach hooked up to external
AC power, if it is available�
While you are connected to external AC power, the
wiring is protected by circuit breakers in the breaker
panel� The circuit breaker panel for the 120-volt system
is located in the converter� In the event of a failure of
a 120-volt circuit, first check your touring coach circuit
breakers and the breaker for the outlet into which your
touring coach shoreline cord is plugged� If a breaker
continues to trip after you have reset it several times,
your circuit may be overloaded with appliances or there
may be a short in the circuit� Try lessening the load on
the circuit� Perhaps an electric griddle, hair dryer, or an
electric heater can be turned off� If that does not solve
the problem, consult an Airstream Service Center�
2020 Interstate Nineteen

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