Airstream Sport 2017, Owner'S Manual

Page: 43 / 90

Interior
2017 Sport
5-15
Any time the trailer is parked for several hours with
the refrigerator operating, the trailer should be leveled
to prevent this loss of cooling� The trailer needs to be
leveled only so it is comfortable to live in (no noticeable
sloping of floor or walls).
When the trailer is moving, the leveling is not critical,
as the rolling and pitching movement of the trailer will
pass to either side of level, keeping the liquid ammonia
from accumulating in the evaporator tubing�
Operation
The refrigerator requires 12-V current to operate,
even if running on LP or 110-V modes� The 12-V
is used to power the circuit board that directs the
refrigerator functions� When running in a mode such
as LP, it means the heat source, by far the largest
power requirement to evaporate the ammonia, is being
provided by an LPG burner�
All models are equipped with a fan inside the exterior
refrigerator compartment� This fan pulls ambient
temperature air across the condensation coils on
the back side of the refrigerator to aid in the cooling�
The fan operation is automatic and built into the fan
assembly� The fan is thermostatically controlled� The
fan increases the cooling efficiency of the refrigerator.
Range
There is little difference between the operation of home
gas ranges and the trailer’s range� If, however, you are
used to an electric range, operating confidence can be
quickly gained by reading the manufacturer’s directions
provided in the owner’s packet� Manufacturer’s service
and parts manuals are also available�
WARNING
An operation manual for the range has been
provided with your owner’s packet. If this has
not been provided with your trailer, contact the
manufacturer listed to obtain. Their manual
contains specialized warnings and cautions
that should be reviewed prior to operating the
appliance.
Refrigerator
Review all refrigerator literature supplied in your
owner’s packet or stored in the refrigerator prior to
operating�
In an absorption refrigerant system, ammonia is
liquefied in the finned condenser coil at the top-rear of
the refrigerator. The liquid ammonia then flows into the
evaporator (inside the freezer section) and is exposed
to a circulating flow of hydrogen gas, which causes the
ammonia to evaporate, creating a cold condition in the
freezer�
The tubing in the evaporator section is specifically
sloped to provide a continuous movement of liquid
ammonia, flowing downward by gravity, through this
section� If the refrigerator is operated out-of-level
when the vehicle is not moving, liquid ammonia will
accumulate in portions of the evaporator tubing� This
will slow the circulation of hydrogen and ammonia gas,
or in severe cases, completely block it, resulting in a
loss of cooling�