Unvented Cast Iron Gas Stoves
16
3-90-58D6002
Monessen • Concorde VF Installation Manual_R11 • 02/17
Flame Appearance
Flames from the pilot, front and rear burner should be
visually checked as soon as the heater is installed.
In addition, periodically check the flames visually during
operation.
Pilot Flame
The pilot flame must always be present when the
heater is in operation.
It should just touch the top of the
thermocouple tip for natural. Refer to Figure 15 for correct
pilot flame.
If the pilot flame does not touch the thermocouple, then
the burners cannot function reliably. Refer to Figure 16 for
incorrect shape of pilot flame.
Millivolt Control
Burner Flame
In normal operation at full rate after 15 minutes, the
following flame appearances should be observed:
The left and right rear flames should be yellow and extend
1"-2" above middle logs. The yellow flames should
not
contact the logs. There should be glowing embers on the front
surface of the middle log.
NOTE The flames and embers
will be an opaque orange color during the burn off time.
Figure 17 - Correct Burner Flame Appearance
PIL
OT
OFF
REMO
TE C
ONTR
OL
LG940
CSVF VFSC log flames
Figure 15 - Correct Pilot Flame Appearance
FP2272
pilot correct flame
Thermocouple
for Natural
Thermocouple for LP
Figure 16 - Incorrect Pilot Flame Appearance
FP2273
pilot bad flame
Thermocouple for LP
Thermocouple
for Natural