Monessen Hearth CFX24 - Manual (Page 22)

22
CFX Vent Free Fireplace System
20301726
LG592
CFX32 log flame
LG591
CFX24 log flame
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.
CHECK THE 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 21 for correct
pilot flame.
If the pilot flame does not touch the thermocouple, then
the main burner cannot function reliably. Refer to Figure
22 for incorrect shape of pilot flame.
Figure 21 -
Correct Appearance of Pilot Flame
FP2114
millivolt correct flame
FP2114
Thermocouple
for Natural
Thermocouple
for LP
Figure 22 -
Incorrect Appearance of Pilot Flame
FP2115
Millivolt wrong flame
FP2115
Thermocouple
for LP
Thermocouple
for Natural
FLAME APPEARANCE
Figure 23 -
Burner Flame Appearance - CFX24
CORRECT LOG FLAME APPEARANCE
In normal operation at full rate after 15 minutes, the follow-
ing flame appearances should be observed:
Burner will have a random pattern of yellow flames. Refer
to Figures 23 and 24. There should be glowing embers in
front of burner.
NOTE: The front flames and embers will be an opaque
orange color during the burn off time.
Figure 24 -
Burner Flame Appearance - CFX32 LG591
LG592