Bryant 580J*04--12 appendix Burners and Igniters, Equipment Damage Hazard, Main Burners

Regulator	Heater Tube
Regulator Gasket Seal Strips, Sponge Rubber
	Assembly

Retainer

Support

Insulation

Assembly

Wind Cap Assembly (shown inverted, as shipped)

Inducer Fan-Motor

Assembly

Burner Assembly

580J

Fig. 31 - Heat Exchanger Assembly

Burners and Igniters

C08227

Orifice

!CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage.

When working on gas train, do not hit or plug orifice spuds.

1.00-in

(25.4 mm)

Manifold

Pipe

C08211

Main Burners Fig. 32 - Orifice Projection

To access burners, remove burner access panel and slide out burner partition. At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames and adjust, if necessary.

Orifice projection — Refer to Fig. 32 for maximum projection dimension for orifice face to manifold tube.

Removal and Replacement of Gas Train

See Fig. 27, Fig. 31 and Fig. 33.

1.Shut off manual gas valve.

2.Shut off power to unit.

3.Slide out burner partition.

4.Disconnect gas piping at unit gas valve.

5.Remove wires connected to gas valve. Mark each wire.

6.Remove igniter wires and sensor wires at the Integ- rated Gas Unit Controller (IGC). (See Fig. 34.)

7.Remove the 2 screws that attach the burner rack to the vestibule plate (Fig. 27).

8.Slide the burner tray out of the unit (Fig. 33).

9.To reinstall, reverse the procedure outlined above.

Cleaning and Adjustment

1.Remove burner rack from unit as described in Re- moval and Replacement of Gas Train section, above.

2.Inspect burners; if dirty, remove burners from rack. (Mark each burner to identify its position before re- moving from the rack.)

3.Use a soft brush to clean burners and cross-over port as required.

4.Adjust spark gap. See Fig. 35 and Fig. 36.

5.If factory orifice has been removed, check that each orifice is tight at its threads into the manifold pipe and that orifice projection does not exceed maximum valve. See Fig. 32

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