Burner Ignition and Operation
Frequency: Annually
By: Qualifi ed Service Technician
Tools needed: Protective gloves, vacuum cleaner, whisk broom, flashlight, voltmeter, indexed drill bit set, and a manometer.
•Verify burner is properly secured and aligned with pilot or igniter.
•Clean off burner top, inspect for plugged ports, corrosion or deterioration. Replace burner if necessary.
•Replace Glowing embers with new
•Verify batteries have been removed from battery back- up IPI systems to prevent premature battery failure or leaking.
•Check for smooth lighting and ignition carryover to all ports. Verify that there is no ignition delay.
•Inspect for lifting or other fl ame problems.
•Verify air shutter setting is correct. See Section 14 for required air shutter setting. Verify air shutter is clear of dust and debris.
•Inspect orifi ce for soot, dirt and corrosion. Verify orifi ce size is correct. See Service Parts List for proper orifi ce sizing.
•Verify manifold and inlet pressures. Adjust regulator as required.
•Inspect pilot fl ame pattern and strength. See Figure 3.1 for proper pilot fl ame pattern. Clean or replace orifi ce spud as necessary.
•Inspect IPI fl ame sensing rod for soot, corrosion and
deterioration. Polish with fi ne steel wool or replace as required.
•Verify that there is not a short in fl ame sensing circuit by checking continuity between pilot hood and fl ame sense rod. Replace pilot as necessary.
Figure 3.1 IPI Pilot Flame Patterns
Heat & Glo • | 15 |
