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74D3000
44
BLDV7 Series Gas Fireplace
Keep the control compartment, logs, and burner areas
surrounding the logs clean by vacuuming or brushing at
least twice a year. Make sure the burner porting, pilot air
opening and burner air opening are free of obstructions
at all times.
The flames from the pilot should be visually checked as
soon as the heater is installed and periodically during
normal operation.
Figure 55. The
pilot flame has three distinct flames, one engulfing the
thermopile, one engulfing the thermocouple or sensor, and
the other reaching to the main burner.
Inspect area around the injector. Remove any lint or foreign
material with a brush or vacuum.
The flames from the burner should be visually checked
as soon as the heater is installed and periodically during
normal operation. In normal operation, at full rate, and
after operating for about 15 to 30 minutes, the flame
should be yellow and slightly taller than the rear log.
Figure 60
If the flame is blue and only in the center, turn off unit
and let cool. After unit is cool, remove logs and check to
make sure the back holes in the burner are not covered
with rock wool. If the back holes are clear, add more rock
wool to the center of the burner. Replace logs.
NOTE: The type of installation, vent system
configuration, and wind effects may cause the flame
patterns to vary.
LG647
BLDV log flames
LG647
Figure 56 -
Burner Flame Appearance
Figure 55 -
Pilot Flame
Thermopile
Thermocouple
FP1943
pilot flame
FP1943
FP2453
hooded pilot flames
Sensor
Thermopile
FP453