15
Heat & Glo • SL-550 / 750 / 950TR-E • 2118-900 Rev. AC • 3/15
Tools needed:
Protective gloves, drop cloth and a stable
work surface.
• Inspect gasket seal and its condition.
• Inspect
fi
xed glass assembly for scratches and nicks that
can lead to breakage when exposed to heat.
• Con
fi
rm there is no damage to glass or glass frame.
Replace as necessary.
• Verify that
fi
xed glass assembly is properly retained and
attachment components are intact and not damaged.
Replace as necessary.
Logs
Frequency:
Annually
By:
Quali
fi
ed Service Technician
Tools needed:
Protective gloves.
• Inspect for damaged or missing logs. Replace as neces-
sary. Refer to Section 14 for log placement instructions.
• Verify correct log placement and no
fl
ame impingement
causing sooting. Correct as necessary.
Firebox
Frequency:
Annually
By:
Quali
fi
ed Service Technician
Tools needed:
Protective gloves, sandpaper, steel wool,
cloths, mineral spirits, primer and touch-up paint.
• Inspect for paint condition, warped surfaces, corrosion
or perforation. Sand and repaint as necessary.
• Replace
fi
replace if
fi
rebox has been perforated.
Control Compartment and Firebox Top
Frequency:
Annually
By:
Quali
fi
ed Service Technician
Tools needed:
Protective gloves, vacuum cleaner, dust
cloths
• Vacuum and wipe out dust, cobwebs, debris or pet hair.
Use caution when cleaning these areas. Screw tips that
have penetrated the sheet metal are sharp and should
be avoided.
• Remove all foreign objects.
• Verify unobstructed air circulation.
Burner Ignition and Operation
Frequency:
Annually
By:
Quali
fi
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 top, inspect for plugged ports, corrosion
or deterioration. Replace burner if necessary.
• Replace Glowing embers with new dime-size pieces.
DO NOT
block ports or obstruct lighting paths. Refer to
Section 14 for proper ember placement.
• 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 ori
fi
ce for soot, dirt and corrosion. Verify ori
fi
ce
size is correct. See Service Parts List for proper ori
fi
ce
sizing.
• Verify manifold and inlet pressures. Adjust regulator as
required.
• Inspect pilot
fl
ame pattern and strength. See Figure 3.1
and 3.2 for proper pilot
fl
ame pattern. Clean or replace
ori
fi
ce spud as necessary.
• Inspect thermocouple/thermopile or IPI
fl
ame sensing
rod
for soot, corrosion and deterioration. Polish with
fi
ne
steel wool or replace as required.
• Verify thermocouple/thermopile millivolt output. Replace
pilot as necessary. (Standing pilot only)
• 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. (IPI only)
Figure 3.1 IPI Pilot Flame Patterns
Figure 3.2 Standing Pilot Flame Patterns