Airstream 2015 Sport, Owner'S Manual

Page: 39 / 94

5
Interior
Sport 5-9
Battery Disconnect Switch
The battery disconnect switch is used to separate
the batteries from the 12-volt distribution panel and
converter charging system
When the switch is turned to ON and the trailer
is plugged into a 110-volt shoreline, the 12-volt
distribution panel will receive power from the converter
and the batteries will be charged through the converter
charging system
When the switch is turned to Off and the trailer
is plugged into a 110-volt shoreline, the 12-volt
distribution panel will still receive power from the
converter, but the batteries are disconnected from
the system The batteries will not be drained with
the switch in the Off position The converter will not
charge the batteries with the switch in this position
The charge in the 12-volt batteries is replenished,
when towing, from the tow vehicle alternator through
the 7-way cord. This charge will flow to the batteries
regardless of the battery disconnect switch position
likewise, if on or off, the solar panel is still charging the
batteries
Power Center (Converter, 12 Volt/110 Volt
Distribution)
manufacturer: Cheng USa, Inc
2021 aeroplex drive North
elkhart, IN 46514
Phone: (574) 294-8997
fax: (574) 294-8698
The converter/charging system is the interior
low voltage electrical system that enables you to
use the interior lights, fans, pumps, and 12-volt
appliances, whether operating on self-contained
battery power or 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 110-volt convenience outlets and 110-
volt appliances The converter system is designed
to maintain constant output voltages regardless of
the variances that occur in city power systems
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 in to a
live circuit Then check all the 120-volt breakers
in your RV distribution panel to make sure they
a`re on If the breaker is tripped, follow instructions
to reset the breakers If the breaker trips again,
consult an electrician or certified RV technician.