Removal and Replacement of Gas Train See | Bryant 581B specification

A. Removal and Replacement of Gas Train (See Fig. 31 and 43.)

1.Shut off manual gas valve.

2.Shut off power to unit.

3.Remove compressor access panel.

4.Slide out burner compartment side panel.

5.Remove heat shield.

6.Disconnect gas piping at unit gas valve.

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

8.Remove induced-draft motor, ignitor, and sensor wires at the Integrated Gas Unit Controller (IGC).

9.Remove the 2 screws that attach the burner rack to the vestibule plate.

10.Remove the gas valve bracket.

11.Slide the burner tray out of the unit (Fig. 31).

12.To reinstall, reverse the procedure outlined above.

B.Cleaning and Adjustment

1.Remove burner rack from unit as described in Removal and Replacement of Gas Train section above.

2.Inspect burners; if dirty, remove burners from rack.

3.Using a soft brush, clean burners and crossover port as required.

4.Adjust spark gap. See Fig. 44.

5.Reinstall burners on rack.

6.Reinstall burner rack as described in Removal and Re- placement of Gas Train section above.

XI. REPLACEMENT PARTS

A complete list of replacement parts may be obtained from your distributor upon request.

Fig. 44 Ð Spark Adjustment

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581B specifications

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