74D0009
49
Figure 63 - Pilot Flame
Thermopile
Thermocouple
Sensor
Sparker
BURNER, PILOT AND CONTROL COMPARTMENT
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.
PILOT FLAME
The flames from the pilot should be visually checked as soon as the
heater is installed and periodically during normal operation.
The pilot
flame must always be present when the fireplace is in operation.
Figure 63
. The pilot flame has three distinct flames, one engulfing the
thermopile, one engulfing the thermocouple, and the other reaching to
the main burner.
BURNER
Inspect area around the injector. Remove any lint or foreign material
with a brush or vacuum.
Turn off gas before servicing fireplace. It is recommended that a qualified service
technician perform these check-ups at the beginning of each heating season
W
ARNING
BURNER FLAME
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 64
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.
Figure 64 - Burner Flame Appearance
CLEANING AND MAINTENANCE
Summary of Contents for Direct Vent BLDV400
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