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120-Volt 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 power center� 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�
The 120-volt electrical system provides power to
operate the A/C, converter, and 120-volt receptacles
for portable appliances� The power is carded through
the 120-volt city power flexible cord to the 120-volt
distribution panel, and then is distributed to each
appliance or receptacle� Exterior 120 volt outlets are
located on the curbside�
All wire, components, and wiring methods conform to
federal and state requirements�
Ground Fault Circuit Interrupter
Most states require touring coach's with exterior
120-volt receptacles and receptacles close to a water
sources, such as a faucet, to have a GFCI� When
properly installed, the GFCI circuit breaker provides
reliable overload and short-circuit protection, plus
protection from ground faults that might result from
contact with a HOT load wire and ground�
The system incorporates GFCI breakers that
implement an auto self-test functionality� When turned
off, these breakers require external AC or generator
power to be present before they can be turned back
on� If power is present from one of these sources, and
the breaker refuses to stay on consult an electrician or
certified RV technician.
2024 Interstate 24
Each GFCI circuit breaker is calibrated to trip with a
ground current of 5 mA or more� Since most people
can feel as little as 2 mA, a distinct shock may be felt
if the need for protection exists� However, the shock
should be of such short duration that the effects would
be reduced to less than the normally dangerous
level� However, persons with acute heart problems or
other conditions that can make a person particularly
susceptible to electric shock may still be seriously
injured�
While the GFCI circuit breaker affords a high degree of
protection, there is no substitute for the knowledge that
electricity can be dangerous when carelessly handled
or used without reasonable caution�
The GFCI circuit breaker will NOT reduce shock
hazard if contact is made between a HOT load
wire and a neutral wire or two HOT load wires.
GFCI circuit breakers provide protection only to
the circuit to which it is connected. It does NOT
provide protection to any other circuit.
GFCI Breaker Test
Perform this test on the GFCI circuit breaker each
month and record the date�
A
B
1� With handle A in "ON" position, press PUSH TO
TEST button B�
2� Handle A should move to TRIP position, indicating
that GFCI breaker has opened the circuit�
3� To restore power move handle A to "OFF" and then
to "ON"�
If the device remains on when the Test button is
pushed, the GFCI is not working properly or has
been incorrectly installed (wired improperly)� If your
GFCI is not working properly, call a qualified, certified
electrician who can assess the situation, rewire the
GFCI if necessary, or replace the unit�
Interior
WARNING
Push To
Test
5-15
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