Operating instructions

50
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 engulng the
thermopile, one engulng 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 conguration,
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
FP453


