Airstream 360 XL, Owner'S Manual

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AIRSTREAM 390/396 XL
WATER SYSTEM - SELF-CONTAINED
Most plumbing functions are accomplished in the plumbing utility compartment on the roadside of your
motorhome. To fill your water tank, hook up a garden hose to the city water inlet then open the water tank
fill valve in the upper right corner of the compartment. The water level can be monitored on your control
panel above the range or the tank can be filled until water is expelled out gravity fill vent tube.
If it is more convenient for you, a water fill is also located on the side of the vehicle. Open the small access
door, unscrew the cap, pull the air plug, insert water hose and fill.
Open the hot side of the galley or lavatory faucet and turn on the water pump switch located on the monitor
panel. For some time the open faucet will only sputter. This is because the water heater is being filled and
air is being pushed out through the lines. Be sure water heater by-pass valves are in normal flow position
and water is in the water heater before lighting beginning operation of the water heater on gas or 110-volt.
See the figure below. Once the water heater is full a steady stream of water will come from the faucet. Now
open a cold faucet. It will sputter for a short time, but will soon expel a steady stream. All other faucets can
now be opened until all air is expelled.
Once the system is filled with water and the faucets closed, the water pump will shut off. When a faucet is
opened the pump will come back on automatically. If the faucet is just barely open it is normal for the
pump to cycle on and off rapidly.
Water pressure at some campgrounds may be low. The water pump can be turned on to assist the city water
hookup pressure. Be sure there is some water in the fresh water tank. The pump will only use the water that
is needed out of the tank to bring the pressure up to the usual
standard. The water pump should be turned off when the
trailer is left unattended.
Water heater by-pass valves are located under the galley. The
shelf system under the sink has to be removed to access the
valves that are on top of the heater. Remove the several
screws anchoring the shelf assembly and take shelf assembly
completely out.
Open valves “A” and “B” for normal usage. Close Valves
“A” and “B”, then open valve “C” for winterizing.
G-5