7
Maintenance
2017 Interstate 9-7
LPG System
Your touring coach is equipped with a permanently-
mounted tank for LPG with a remote ll and remote
gas supply shut off switch� LPG burns with a clean blue
ame. LPG is used where subfreezing temperatures
are common, since it boils at -44°F� Keep in mind at
these temperatures the BTU is lower than at 30°F� How
long a full tank of gas will last is dependent on usage�
In cold weather, when you are using the furnace, using
large amounts of hot water, or cooking extensively,
you will naturally use more LPG than you will in
warm weather, or when doing limited cooking� On the
average, with normal cooking and other appliance use,
you can probably count on 2 to 4 weeks of usage from
the tank, if you are not running your generator�
If you have allowed the tank to run out, air may
have gotten into the lines� In this event the air must
be allowed to bleed from the lines before lighting
appliances� Follow the appliance manufacturer’s
instructions and light the appliance closest to the LPG
supply tank� Then move to the next closest, etc�
LPG Tank Remote Fill
The LPG tank is lled by accessing the remote
ll hookup located in the compartment under the
passenger side rear fender behind the rear wheels�
Be sure the ll is free of dirt. It may help to remind
your LPG supplier to only use a clean ll hose to ll
your tank� Turn off the remote switch when the LPG
system is not in use, as it draws 12-volt current from
the batteries�
WARNING
Only certied LPG suppliers should ll the LPG
tank. Turn remote gas supply switch off before
lling or relling LPG tank.
WARNING
Always shut off the LPG gas when refueling the
touring coach.
Remote Gas Supply Switch
A remote switch for shutting off the gas to all
appliances is located in the same compartment� The
switch activates an electric solenoid which opens and
closes, shutting the gas off at the tank� This switch
should be turned off during the lling of the LPG tank.
Gas lines should be checked periodically for leaks with
ammonia-free soapy water�
WARNING
Be careful when working around electricity, as it
can carry dangerous amperage and cause sparks
or combustion.
NOTE
The electric gas shut-off solenoid closes
automatically when 12-volt power is disconnected.
It will reopen when power is restored.
WARNING
All LP gas appliances must be turned off
during refueling of touring coach fuel tank and
permanently-mounted LPG tank.
WARNING
Do not use open ame to search for problems. If
gas can be smelled, appliance pilots fail to stay
on, or any other abnormal situation occurs, use
the remote supply switch to shut off the tank valve
immediately and call on a qualied LPG service
center or Airstream Service Center.
CAUTION
Moisture in the LPG tank will cause a malfunction
of the regulator in controlling proper pressure.
This may result in the ame lifting off the burner,
or the ame may go out frequently. Many refueling
stations will add approximately ¼ to ½ gal of
alcohol to lower the moisture temperature.
Moisture will then pass through the regulator
without the formation of ice crystals.
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