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Lighting, Operating & Shut Down
Safety Information
• This appliance does not have a pilot. It is equipped
with an ignition device, which automatically lights
the burner. Do not try to light the burner by hand.
• BEFORE OPERATING smell all around the appli-
ance area for gas. If your unit uses LP (propane), be
sure to smell next to the floor because LP (propane)
gas is heavier than air and will settle on the floor.
• Use only your hand to turn the gas valve knob.
Never use tools. If the knob will not turn by hand,
don’t try to repair it. Call a qualified service techni-
cian. Force or attempted repair may result in fire or
explosion.
• Do not use this appliance if any part has been under
water. Immediately call a qualified service techni-
cian to inspect the appliance and replace any part of
the control system and any gas valve, which has been
under water.
• Installation and repair should be done by a qualified
service person. The appliance should be inspected
before use and at least annually by a qualified service
person.
Lighting, Operating And Shut Down Instructions
This appliance requires combustion air for heating
operation. Air is drawn from the outdoors through the
rear grill assembly.
Do not block or obstruct air openings in the rear
grill.
This appliance will automatically light itself in response
to a thermostat call for heat. To initiate heating opera-
tion, turn on the manual valve in the gas supply piping
and the manual valve located in the front right compart-
ment of the appliance.
This procedure should be used on initial start up of thru-
wall air conditioning units. On new installations and on
units that may have been idle for a period of time, this
procedure should take approximately ten minutes per
unit to test adequately.
Shut Down
For extended shut down, turn off the manual valve in
the gas supply piping and the manual valve located in the
front right compartment of the appliance. Push the OFF
button on the selection console and unplug power cord
or turn off circuit breaker powering unit.
Note: On electronic units if power is not disconnected,
the unit may activate indoor low temperature mode
which will allow the appliance to maintain 55 degrees in
the room space whether or not it is in the “OFF” posi-
tion.