Airstream 1980 Argosy Owner's Manual page 89

For Complete Shut-Down Press Valve Dial
And Turn To "Off". Set Thermostat To
"Off" Setting.
If your fuel supply 1 s depleted the main burner
will go into lockout. To reset the lockout, turn
gas valve to "OFF" and set thermostat to
"OFF". Wait 5 minutes and return to operation
Adjustment of main burner (Primary air): Set
the furnace into operation by advancing the
thermostat and allow to run until it reaches
near-maximum operating temperature.
Observe the main burners through the burner
observation window. The flame should be
without a trace of yellow and be "sitting" on
the burner. As the furnace was tested at the
factory before sh~pment, ~t may be found that
the primary air is already in proper adjustment.
However, adjustments may vary from one
location to another due to differences in
elevation and in characteristics of the fuel
gases.
If the flame burns yellow or "lifts" off the
burner, it needs adjustment. Take out the
screws retaining the rectangular cover plate
and lift the plate off.
Inside the opening is a threaded rod with the
visible end slotted to receive a screwdriver. By
turr~ing the rod you will adjust the position of
the main burner air shutter. This air shutter
Should be adjusted to the point where a hard
blue flame is present at the burner. Replace the
cover and check to be certain that the flame is
still hard blue. Caution: The primary air
adjustment cover plate must be in place
for proper operation of the furnace.
Note: If burner is allowed to operate in yellow
condition, "soot" will accumulate on vent cap
and in radiators. This should not be allowed to
occur.
When the hurnidity is high inside your trailer
and you wish to remove moisture, open a roof
vent and turn on a vent or open a window
slightly for cross ventilation.
The most common cause of p~lot operated
furnace failure is pilot outage, the inability of
the pilot to stay lit unless the reset button is
depressed. The trouble is usually in the
thermocouple, which is located inside the
cover plate near the pilot light. Check to see
that the end of the thermocouple lead is
screwed firmly into the safety valve and that the
joint is clean.
The furnace can be used to circulate air during
hot weather by shutting off the gas valve and
turning the thermostat up higher than the
temperature in the trailer. Return the thermostat
to "OFF" sett'ing whenever the furnace is not in
use.
Additional information on the Furnace is
available in the Service Manual.
Maintenance and Cleaning
We recommend that the furnace be inspected
and thoroughly cleaned by a qualified service
agency before each heating season. T h ~ s
would include the combustion chamber, the
main burner, the blower assembly, and all
control parts. A careful inspection of all gaskets
should be made and if any gaskets show signs
of leakage or deterioration, they should be
replaced.
Furnace Access Door
Cleaning of the chamber and main burner w~ll
be required if the ur~it has been allowed to
operate with a high yellow flame. The yellow
flame is due to incomplete combustion (lack of
air) and will deposit a soot formation inside the
chamber and on the main burner.
To clean .the chamber, main burner, blower
assembly and controls, the chamber assembly
must be pulled from the furnace. (See
instructions for removing chamber.)
The furnace is equipped with an oiled, sealed
motor and requires no oiling.