Airstream Sport 2017, Owner'S Manual

Page: 38 / 90

Interior
5-10
2017 Sport
Automatic Micro-Controller Operation
The power converters 3-stage switch mode is fully
automatic� The converter senses which mode it needs
to be in by checking the condition of the battery� The
three modes include:
Absorption Mode: During this mode the converter
output is at 13�6 VDC range� This is the mode that the
converter will function at normally� This mode provides
the 12 VDC and the current required by the trailer�
Bulk Mode: When the converter senses that the
battery voltage is less than 13�2 VDC the converter will
automatically go into the Bulk Mode�
Float Mode: If the trailer is not being used for a period
of time and the shore power has been left plugged in,
the converter will automatically go into float mode. The
converter senses if there has been any demand� When
the converter senses a demand by turning on lights,
the converter automatically goes into bulk mode and
returns to absorption mode�
110-Volt Electrical System
City Power
When your trailer is hooked up to 110-volt AC, the
converter system automatically charges the trailer
batteries with the battery disconnect switch in the USE
(on) position and, if the 7-way cord is hooked up and
depending on your vehicle, your tow vehicle battery
as well� 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, then you should keep your
trailer hooked up to a 110-volt current if it is available�
While you are connected to the 110-volt receptacle, the
wiring is protected by circuit breakers in the breaker
panel� The circuit breaker panel for the 110-volt system
is located in the converter� Open the brown decorative
converter door under the dinette� In the event of a
failure of a 110-volt circuit, first check your trailer circuit
breakers and the breaker for the outlet into which your
trailer 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 110-volt electrical system provides power to
operate the air conditioner, converter, and 110-volt
receptacles for portable appliances� The power is
carded through the 110-volt city power flexible cord to
the 110-volt distribution panel, and then is distributed
to each appliance or receptacle� Exterior outlets for
110-volts are located on the curbside exterior wall
between the wheels and above the wheel well�
All wire, components, and wiring methods conform to
federal and state requirements�
Converter
The Airstream converter system enables you to use
the 12-volt lights and equipment whether operating on
self-contained battery power or hooked up to 110-
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�
NOTE
When operating with city power, make very certain
that the service is 110-volt and not 220-volt.
The converter system is a transformer designed to
maintain constant output voltages regardless of the
variances that occur in city power systems� The design
eliminates the need for complex electronic sensing
systems to charge the batteries, minimizing the
possibility of failures and greatly increasing its overall
reliability�
In some older parks and other locations where three
pronged outlets are not available, certain precautions
to ensure proper grounding and polarity must be
taken� These precautions are listed below:
1� Attach the three-pronged plug to a two-pronged
adapter� The third conductor line of this adapter
has a short wire lead, that must be grounded�
2� For proper grounding, connect the short ground
lead to a grounded outlet box or to a cold water
pipe� When no water pipe is available, drive a
metal rod two feet into the ground and attach the
ground lug to it, thus, providing the unit with proper
grounding�
NOTE
When the three-pronged plug can be used,
there will be no problems with proper polarity or
grounding with a properly wired shoreline outlet.
To operate self-contained, simply disconnect the
power supply cable�