Heatilator • RAVE4013I-D • 2328-900 Rev. F • 9/17
14
B. Maintenance Tasks-Qualified Service
Technician
The
following tasks must be performed by a qualified ser
-
vice technician.
Gasket Seal and Glass Assembly Inspection
Frequency:
Annually
By:
Qualified Service Technician
Tools needed:
Protective gloves, drop cloth and a stable
work surface.
• Inspect gasket seal and its condition.
• Inspect fixed glass assembly for scratches and nicks that
can lead to breakage when exposed to heat.
• Confirm there is no damage to glass or glass frame.
Replace as necessary.
• Verify that fixed glass assembly is properly retained and
attachment components are intact and not damaged.
Replace as necessary.
Firebox
Frequency:
Annually
By:
Qualified 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 fireplace if firebox has been perforated.
Control Compartment and Firebox Top
Frequency:
Annually
By:
Qualified 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:
Qualified 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.
• 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 flame problems.
• Verify air shutter setting is correct. See Section 14.G for
required air shutter setting. Verify air shutter is clear of
dust and debris.
• Inspect orifice for soot, dirt and corrosion. Verify orifice
size is correct. See Service Parts List for proper orifice
sizing.
• Verify manifold and inlet pressures. Adjust regulator as
required.
• Inspect pilot flame pattern and strength. See Figure 3.1
for proper pilot flame pattern. Clean or replace orifice
spud as necessary.
• Inspect IPI flame sensing rod for soot, corrosion and
deterioration. Polish with fine steel wool or replace as
required.
• Verify IPI millivolt output. Replace as necessary.
• Verify that there is not a short in flame sense circuit
by checking continuity between pilot hood and flame
sensing rod. Replace pilot as necessary.
Figure 3.1 IPI Pilot Flame Pattern
