Figure 52 - Pilot Flame
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 operat-
ing for about 15 to 30 minutes, the flame should be yellow
and slightly taller than the rear log.
See Figure 53.
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.
If necessary, change this by loosening nut and opening or
closing the air shutter more.
See Figure 54.
Figure 53 - Burner Flame Appearance
CLEANING AND MAINTENANCE
BURNER, PILOT AND CONTROL COMPARTMENT
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.
WARNING
Figure 54 - Adjusting Air Shutter
Nut
Shutter Opening
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 52
. The pilot flame has t
wo
distinct
flames, one engulfing the
flame sensor
, and the
other
reaching to the main burner.
.
AIR SHUTTER ASSEMBLY
Air shutter is factory
set:
5/16" for natural gas and fully
open
for
propane gas
(additional 2 x 3/8" Dia. holes).
3
8
Summary of Contents for DV2500-E
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