ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury, death or personal injury.
Do not use this equipment if any part has been under
water. A flood-damaged equipment is extremely
dangerous. Attempts to use the equipment can result
in fire or explosion. A qualified service agency should
be contacted to inspect the equipment and to replace
all gas controls, control system parts, electrical parts
that have been wet or the equipment if deemed
necessary.
Your rooftop heating/cooling unit is equipped with an
automatic, direct spark ignitor and an induced-draft,
combustion blower.
IMPORTANT FACTS
• DO: READ AND UNDERSTAND THIS MANUAL.
• DO: Have your equipment and vent system inspected
annually by a qualified service technician.
• DO: Inspect your filter monthly and clean or replace
when needed.
• DO: Provide adequate airflow to the equipment for
efficient combustion and safe ventilation.
• DO NOT: Keep combustible materials, gasoline, and
other flammable liquids or vapors around your
equipment.
• DO NOT: Cover your equipment in any manner.
• DO NOT: Store anything (including trash or debris) near
your equipment.
• DO NOT: In any way block or restrict airflow around
your equipment.
• DO NOT: Contaminate the air used for combustion of
your equipment with any kind of chemical or fumes. This
could also cause heat exchangers, metal vent systems or
components to deteriorate.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
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 burn-
ers, refer to the shutdown procedures, then call
your dealer as soon as possible.
CUT HAZARD
Failure to follow this caution may result in personal
injury.
When removing access panels or performing
maintenance functions inside your unit, be aware of
sharp sheet metal parts and screws. Although special
care has been taken to reduce sharp edges inside the
unit, be extremely careful when handling parts or
reaching into the unit.
TO LIGHT UNIT
Step 1 -- Set room thermostat/unit controller to the lowest
temperature setting and set the SYSTEM switch to HEAT or
AUTO position. See Fig. 1.
007381
Fig. 1 - Thermostat/Unit Controller
Step 2 -- Turn off the gas supply by closing the gas supply
shut-offvalve (external to RTU unit). See Fig. 2 for location.
Gas Supply Shut Off Valve
@
Fig. 2 - Gas Supply Shut-Off Valve
(Thru the base gas supply shown.)
Fig. 3 - Gas Supply Shut Off Valve
C07358
007380
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