12-Volt Power Circuits; Converter Operation; 120-Volt Ac Panel Board; Fuses And Breakers - Airstream Sport 2017 Owner's Manual

12-Volt Power Circuits

The current in the converter system is 12 volts direct
current (12 VDC) negative grounded� Power sources
that supply 12 VDC current to the system are as
follows:
• Main charge line from tow vehicle
• Trailer batteries
• Converter
The power sources listed above are all electrically
connected to the 12-volt distribution fuse panel that
distributes current to interior branch circuits� The
circuits provide power to operate all 12-volt DC lights,
pumps, motors, and appliances�
Power converter is a solid-state electronic power
supply and is maintenance-free. It is so self-sufficient
and quiet that you will probably not know it is working
except for the fact that your batteries are always
charged, and your 12-volt lights and appliances always
work�
If any 12-volt appliance fails to operate, first check
your 12-volt distribution fuse block, located behind the
decorative front door in the front right-hand corner of
the converter and inspect all fuses� If a fuse is opened
or blown, replace it with the same size fuse (never
install a larger use)� If the fuse opens again, have an
electrician or certified RV technician locate the circuit
trouble� Replace blown fuses only with the same type
and amperage size previously used�
If the power converter is not working, first confirm
the RV supply or shoreline cord is plugged into a
live circuit� Then check all the 120-volt breakers in
your RV distribution panel to make sure they are on�
If the breaker is tripped, follow instructions to reset
the breakers� If the breaker trips again, consult an
electrician or certified RV technician.

Converter Operation

The electronic power converter is designed to supply
the nominal 12-volt-filtered DC power for all 12-volt-
operated devices encountered in RV service� Although
the converter is an excellent battery charger, the
converter does not require a battery to be connected to
it for proper operation�
NOTE
When installing a battery (s), always observe
polarity. Connecting a battery in reverse polarity
will blow the power converter main fuses located
on the 12-volt DC distribution fuse block.
2017 Sport

120-Volt AC Panel Board

The AC panel board section contains the 120 VAC
branch circuit breakers for your RV� One of the
breakers controls the 120-volt power to the 12-volt
converter section� This breaker may also control
another branch circuit� Check the label next to each
breaker for what each branch circuit breaker controls�
The 120-volt circuits may be turned on by setting their
breaker handle up, to the ON position, or off by setting
the handle down, to the OFF position� To reset the
tripped breaker, move handle to OFF then ON�

Fuses and Breakers

Breakers

The distribution panel was designed to use a 30 AMP
110Volt main breaker with branch circuits� Double
breakers may be used for the branch circuits� Should
a breaker become faulty replace with the same type
breaker only� Use only approved circuit breakers and
12V fuses�
NOTE
When replacing circuit breakers replace with the
same type and rating as the original.

12 VDC Fuses

Each 12 VDC circuit in the distribution panel was
designed for a maximum of a 20 amp automotive
style fuse� Should one need to be replaced, be sure
to replace it with the same type and Amp rating as
originally supplied by Airstream� Replacing it with either
a higher or lower Amp fuse could result in the panel not
functioning properly�

REVERSE Polarity Fuses

The power converter is equipped with reverse polarity
fuses, Should these fuses "blow" either during the
manufacturing process or while connecting the battery,
replace with the same type and rating fuse as originally
provided with the equipment�
The power converter is not weather resistant nor
designed for installation in wet locations� The power
converter must be protected from direct contact with
water�
Interior
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