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AVFL Vent Free Fireplace
MAINTENANCE AND CLEANING
FLAME APPEARANCE
Flames from the pilot, front and rear burner should be
visually checked as soon as the heater is installed.
In addition, periodically check the flames visually during
operation.
Thermocouple
for Natural Gas
CHECK THE PILOT FLAME
The pilot flame must always be present when the
heater is in operation. It should just touch the top of the
thermocouple tip for natural gas. Refer to Figure 27 for
correct pilot flame.
If the pilot flame does not touch the thermocouple, then
the main burner cannot function reliably. Refer to Figure
28 for incorrect shape of pilot flame.
Thermocouple
for LP
FP2272
Figure 27 –
Correct Pilot Flame Appearance
CHECK BURNER FLAME APPEARANCE
In normal operation, at full rate after 15 minutes, the flames
should appear as shown in Figure 29.
Thermocouple
for Natural Gas
If logs are installed, the flames should be yellow and should
not impinge on the logs.
Thermocouple
for LP
FP2273
Figure 28 –
Incorrect Pilot Flame Appearance
LG1181
Figure 29 –
Burner Flame Appearance
(Shown with fireglass only)
28
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