Cleaning And Maintenance; Burner, Pilot And Control Compartment; Pilot Flame; Burner Flame - Monessen Hearth Direct Vent Gas Fireplace BDV400 Installation And Operating Instructions Manual

CLEANING AND MAINTENANCE

Turn off gas before servicing fi replace. It is recommended that a qualifi ed 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. See Figure 48. 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.
See Figure 49.
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
confi guration, and wind effects may cause the
fl ame patterns to vary.
38
Thermocouple
Figure 48 - Pilot Flame
Figure 49 - Burner Flame Appearance
Thermopile
54D0700