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Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
3. Not curling, floating, or lifting off.
Burner Flame
WARNING
To avoid personal injury or death due to electric shock, do
not remove any internal compartment covers or attempt
any adjustment. Contact a qualified servicer at once if an
abnormal flame should develop.
NOTE:
This will involve removing and reinstalling the heat
exchanger door on the unit, which is held by two screws.
If you are uncertain about your ability to do this, contact a
qualified servicer.
If a strong wind is blowing, it may alter the airflow pattern
within the unit enough that an inspection of the burner flames
is not possible.
Cleaning Burners
1. Shut off electric power and gas supply to the unit.
2. Remove the screws securing the manifold to the
burner retention bracket. Remove the manifold and
rotate each burner counterclockwise to remove.
3. Remove the burners.
Manifold Assembly
4. Use a bottle brush to clean burner insert and inside
of the burners.
5. Replace burners and manifold, inspect the burner
assembly for proper seating of burners in retention
slots.
6. Reconnect electrical power and gas supply.
For further information on the yearly inspection, consult the
User Manual. It is recommended that a qualified servicer in
-
spect and service the unit at least once each year.
Turn the unit on at the thermostat. Wait a few minutes, since
any dislodged dust will alter the normal flame appearance.
Flames should be predominantly blue and directed into the
tubes. They should not be yellow. They should extend direct-
ly outward from the burner ports without curling downward,
floating or lifting off the ports.
ACCESSORIES AND FUNCTIONAL PARTS
Sheet Metal Accessories
Additional accessories can be purchased to fit specific appli
-
cation needs. Parts and instructions are available from your
distributor.
Functional Parts
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation.
CAUTION
Always verify proper operation after servicing.
Auxiliary Limit Switch
Flame Rollout Switch
Blower Housing
Flame Sensor
Blower Wheel
Gas Orifice
Circulator Blower Motor
Gas Valve
Burner
Heat Exchanger
Capacitor
High Limit Switch
Compressor
High Pressure Switch
Condenser Coil
Igniter
Condenser Fan Blade
Ignition Control
Condenser Fan Motor
Induced Draft Blower
Contactor
Pressure Switch
Gas Manifold
Pressure Switch Hose
ECM Interface Module
Thermostatic Expansion Valve
Evaporator Coil
Transformer
FUNCTIONAL PARTS
Functional Parts List
General Information
1. Refer to the description in Functional Parts List when
ordering any of the listed functional parts. Be sure to
provide the unit model and serial numbers with the
order.
2. Although only functional parts are shown, all sheet
metal parts, doors, etc. may be ordered by description.
3. Parts are available from your distributor.
