Airstream NTERSTATE - Manual (Page 77)

H
H - 2
ELECTRICAL SYSTEMS
12V POWER CIRCUITS
The current in the converter system is 12 volts direct current (12VDC) negative
grounded.
Power sources that supply 12VDC current to the system are House Battery and
Converter. These power sources above are 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 systems in the living area.
The 7300 series power converter is a solid-state electronic power supply and is main-
tenance free. It is so self-sufficient and quiet that you will probably not know it is
working except for the fact that your battery is always charged, and your 12-volt lights
and appliances always work. If any 12-volt appliance fails to operate, first check your
recreational vehicles 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 with Littefuse type 257 fuses only.
If the 7300 series power converter is not working, first confirm the RV supply or shore-
line 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 the
instructions to reset the breakers. If the breaker trips again, consult an electrician or
certified RV technician.
CONVERTER OPERATION
The MagneTec 7300 series electronic power converter is designed to supply the
nominal 12-volt filtered D.C. 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.
CAUTION : When installing a battery (s) always observe polarity. Connecting a bat-
tery reverse polarity will blow the power converter main fuses located on the 12 volt
D.C. distribution fuse block.
120 VOLT AC PANEL BOARD
The AC panel board section of the series 7300 is located behind the decorative door
in the upper left-hand corner. This panel 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 located in the lower half of the 7300. 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” my putting their breaker handle up to the on
position or “off” by flipping the handle down to the off position. To reset the tripped
breaker move handle to off then on.