Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 534-80029
Printed in U.S.A.
Form 48HG-2SO
Pg 1
3-01
Replaces: 48HG-1SO
Book 1
4
Tab
1a 6a
User’s Information Manual
NOTE TO INSTALLER:
This manual should be left with the equipment owner.
Your combination heating/cooling unit is equipped with di-
rect spark ignition and induced draft power combustion blower.
TO LIGHT UNIT
See Fig. 1 for location of gas valve. Refer to Fig. 2 while
proceeding with the following steps.
Step 1 —
Set room thermostat to the lowest temperature
setting and set SYSTEM switch to OFF position.
Step 2 —
Close the external manual gas valve.
Step 3 —
Turn off the electrical supply to the unit and
install lockout tag.
Step 4 —
Remove the heat section access panel.
Step 5 —
Turn the control dial on the internal gas valve
counterclockwise
to the OFF position and wait 5 minutes.
Step 6 —
Turn control dial on internal gas valve clockwise
to ON position.
Step 7 —
Replace the heat section access panel.
Step 8 —
Remove lockout tag and turn on the electrical
supply to unit.
Step 9 —
Open the external gas valve.
Step 10 —
Set room thermostat selector slightly above
room temperature and set system switch to HEAT position to
start the unit. The induced-draft combustion air fan will start.
Main burners light within 30 seconds. Indoor blower will start
within a few seconds of main gas ignition.
Step 11 —
Set the temperature selector on room thermostat
to desired setting.
WARNING: If the information in this man-
ual is not followed exactly, a fire or explo-
sion may result causing property
damage, personal injury or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch;
do not use any phone in your
building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information consult a qualified installer,
service agency, or the gas supplier.
Before performing recommended maintenance, be sure
main power switch to unit is turned off and lockout tag is
installed. Electrical shock could cause personal injury.
Burners will light automatically. Do not attempt to light by
hand; personal injury may result.
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.
3. Never attempt to manually light the burners on the
unit with a match, lighter, or any other flame. If the
electric sparking device fails to light the burners, refer
to the shutdown procedures, then call your dealer as
soon as possible.
If you do not follow these instructions exactly, a fire or
explosion may result, causing property damage, injury, or
loss of life.
48HG014-028
Gas Heating/
Electric Cooling Units
