Flame appearance – Monessen Hearth DFS36NVC User Manual
Page 25
71D0532
25
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.
CHECKING THE PILOT FLAME
The pilot fl ame must always be present when the heater is in operation.
It should just touch the top of the thermo-
couple tip for natural. See Figure 27 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. See Figure 28 for in-
correct shape of pilot flame.
MILLI-VOLT CONTROL
Figure 27 - Correct Appearance of Pilot Flame
Figure 28 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Thermocouple
for LP
Thermocouple
for Natural