Operating instructions
5
75D0004
MLDV 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 ames from the pilot should be visually checked as soon as the
heater is installed and periodically during normal operation.
Figure 72. The pilot ame has three distinct ames, one engulng the
thermopile, one engulng 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 ames 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 ame
should be yellow and slightly taller than the rear log.
Figure 73
If the ame 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. Replace logs.
The type of installation, vent system conguration,
and wind effects may cause the ame patterns to vary.
LG550
Figure 73 -
Burner Flame Appearance
FP1943
pilot flame
Thermopile
Thermocouple Sensor
FP1943
Figure 72 -
Pilot Flame
FP2453
hooded pilot flames
Sensor
Thermopile
FP453










