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Your combination heating/cooling unit is equipped with an
automatic direct spark ignition and power combustion blower.
WARNING:
Do not attempt to light by hand; per-
sonal injury may result.
TO LIGHT UNIT
DANGER:
1. Do not turn off the electrical power to unit without
first turning off the gas supply.
2. Before attempting to start the gas heating section,
familiarize yourself with all the procedures that must
be followed.
If you do not follow these instructions exactly, a fire or
explosion may result, causing property damage, injury,
or loss of life.
Refer to Fig. 1. See Fig. 2 for location of gas valve. Refer to
Fig. 3 while proceeding with the following steps.
I. Step 1
Set the temperature selector on room thermostat to the low-
est temperature setting and set system switch to HEAT.
II. Step 2
Close the external manual shutoff valve.
III. Step 3
Turn off the electrical supply to the unit.
IV. Step 4
Remove the front access panel with a
5
⁄
16
-in. nut driver.
V. Step 5
Move the selector switch on the internal gas valve to the OFF
position and wait 5 minutes.
VI. Step 6
Move the selector switch on the internal gas valve to the ON
position.
VII. Step 7
Replace the front access panel.
VIII. Step 8
Turn on the electrical supply to unit.
IX. Step 9
Open the external manual shutoff valve.
X. Step 10
Set the temperature selector on room thermostat slightly above
room temperature to start unit. The induced-draft combustion-
air fan will start. Main gas valve will open and main burners
should ignite within 5 seconds. If the burner does not light
within 5 seconds, the ignition module will go into a Retry mode
after a period of approximately 22 seconds (following the
5-second ignition period).
If the burners do not light within 15 minutes of the initial
call for heat, there is a lockout.
XI. Step 11
Set the temperature selector on room thermostat to desired
setting.
WARNING:
1. If the main burners fail to light, or the blower fails
to start, shut down gas heating section and call your
dealer for service.
2. Never attempt to manually light the main burners
on unit with a match, lighter, or any other flame. If
the electric sparking device fails to light the main
burners, refer to the following shutdown proce-
dures, then call your dealer as soon as possible.
Failure to follow these requirements could result in
serious personal injury.
TO SHUT UNIT OFF
WARNING:
Do not turn off the electrical power to unit
without first turning off the gas supply.
Failure to follow these procedures can result in serious
fire or personal injury.
NOTE: If unit is being shut down because the heating sea-
son has ended, make sure to turn on power to cooling
system.
If unit is being shut down because of a malfunction, call your
dealer as soon as possible.
Should overheating occur or the gas supply fail to shut off,
shut off the manual gas valve to the unit before shutting off
the electrical supply.
Do not use this unit if any part has been under water. Im-
mediately call a qualified service technician to inspect the unit
and to replace any part of the control system and any gas
control which has been under water.
Refer to Fig. 4 while proceeding with the following steps.
I. Step 1
Set the temperature selector on room thermostat to lowest
temperature setting and set system switch to OFF.
II. Step 2
Close the external manual shutoff valve.
FRONT
ACCESS
PANEL
Fig. 1 — Gas Heating/Electric Cooling Unit
—2—