Cleaning And Maintenance; Burner, Pilot And Control Compartment; Pilot Flame; Burner Flame - Monessen Hearth BDV300 Instruction Manual

BDV Series Direct Vent Gas Fireplace
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.

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 62. 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.

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 63
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.
46
Figure 63 -
Burner Flame Appearance
LG620
BDV log flames

cleANING and MAINteNANce

Thermocouple
Thermopile
FP1943
Figure 62 - Pilot Flame
FP1943
pilot flame
LG60
54D0700