Heat & Glo PRIMO48 Owners Manual Care And Operation page 21

Burner Ignition and Operation
Frequency: Annually
By: Qualifi ed Service Technician
Tools needed: Protective gloves, vacuum cleaner, whisk
broom, fl ashlight, voltmeter, indexed drill bit set, and a
manometer.
• Verify burner is properly secured and aligned with pilot
or igniter.
• Clean off burner tube, inspect for plugged ports, corrosion
or deterioration. Replace burner if necessary.
• Inspect for lifting or other fl ame problems.
• Verify air shutter setting is correct. See Installation
Manual 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 4.7
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 IPI millivolt output. Replace as necessary.
• Verify that there is not a short in fl ame sense circuit
by checking continuity between pilot hood and fl ame
sensing rod. Replace pilot as necessary.
Figure 4.7 IPI Pilot Flame Pattern
Heat & Glo • PRIMO48, PRIMO48ST, PRIMO60, PRIMO60ST, PRIMO72, PRIMO72ST Owner's Manual • 2310-971 Rev. G • 9/15 21