Table of Contents
Advertisement
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.
Burner Flame
Burner Flame
To avoid personal injury or death due to electric shock,
remove electrical power from the unit before changing
speed taps on the blower motor.
Cleaning Burners
1. Shut off electric power and gas supply to the unit.
2. Remove the screws securing the manifold to the burn-
er retention bracket. Remove the manifold and rotate
each burner counterclockwise to remove.
3. Remove the burners.
4. Use a bottle brush to clean burner insert and inside of
the burners.
5. Replace burners and manifold, inspect the burner as-
sembly 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
inspect 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 appear-
ance. Flames should be predominantly blue and directed
into the tubes. They should not be yellow. They should ex-
tend directly 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
application needs. Parts and instructions are available from
your distributor.
Check the
Burner Flames for:
1. Stable, soft and blue.
2. Not curling, floating
or lifting off.
WARNING
Manifold
Manifold Assembly
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation.
Always verify proper operation after servicing.
Functional Parts
FUNCTIONAL PARTS
Auxiliary Limit Switch
Blower Housing
Blower Wheel
Burner
Circulator Blower Motor
Capacitor
Compressor
Condensor Coil
Condenser Fan Blade
Condenser Fan Motor
Contactor
Gas Manifold
Evaporator Coil
Flame Rollout Switch
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 met-
al parts, doors, etc. may be ordered by description.
3. Parts are available from your distributor.
22
Burner
Burner
Bracket
CAUTION
CAUTION
Flame Sensor
Gas Orifice
Gas Valve
Heat Exchanger
High Limit Switch
High Pressure Switch
Igniter
Ignition Control
Induced Draft Blower
Pressure Switch
Pressure Switch Hose
Thermostatic Expansion
Valve
Transformer
Advertisement
Table of Contents
