F - 16
ELECTRICAL
G - 1
G
12 VOLT OPERATION
The major portion of electrical power in your Airstream is 12-volt. The 12-volt
current powers the fans, furnaces, water pump, and water heater ignition. The
exception would be the air conditioner and microwave oven.
All 12-volt current comes through the battery system in the front of your trailer.
The battery is accessible in the battery box on the A-frame of your trailer.
Power from the battery goes to a set of four Type 2 thermal breakers located
under the front bed and riveted to the inside skin front plate. The breakers are
ties together by a brass bus bar. One breaker (30 Amp.) protects the 12-volt
tow vehicle charge line coming from the 7-way cord.
Another breaker (20 Amp.) feeds the trailer brakes breakaway switch located
near the hitch coupler. A 50 amp. breaker feeds the Battery Disconnect relay.
The current leaves the relay and goes to the 12-volt distribution panel located
in the converter and then to the rest of the trailer.
Open the brown decorative door on the front of the converter under the dinette
to access the panel and its fuses. A 12-volt layout diagram is shown later in
this section.
BATTERY DISCONNECT SWITCH
The disconnect switch is used to separate the battery from the 12-volt distribu-
tion panel and converter charging system.
When the switch is turned
“use” (on) and the trailer is plugged into a 110-volt
shoreline, the 12-volt distribution panel will receive power from the converter
and the battery will be charged through the converter charging system.
When the switch is turned to
“store” (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 battery is disconnected from the system. The battery will not
be drained with the switch in the store position. The converter will not charge
the battery 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 go to the battery no
matter which position the Battery Disconnect Switch is in.
Summary of Contents for 2013 International
Page 18: ...A A 12 Warranty and Service NOTES ...
Page 30: ...Towing B 12 B ...
Page 34: ...Towing B 16 B NOTES ...
Page 68: ...Exterior D 22 D NOTES ...
Page 122: ...APPLIANCES H 8 H NOTES ...