Flame Appearance - Monessen Hearth DLX18 Installation And Operating Instructions Manual

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 flame must always be present when the heater is in operation. It should just touch the top of the ther-
mocouple tip for natural. See Figure 22 and 24 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. See Figure 23 and 25 for
incorrect shape of pilot flame.
MILLI-VOLT CONTROL
NOTE: For illustration purposes, natural gas and propane components are combined.
Thermocouple
for Natural
Thermocouple
for LP
Figure 22 - Correct Appearance of Pilot Flame
MANUAL CONTROL AND THERMOSTAT CONTROL
NOTE: For illustration purposes, natural gas and propane components are combined.
Thermocouple
for Natural
Thermocouple
for LP
Figure 24 - Correct Appearance of Pilot Flame
24
Thermocouple
for Natural
Thermocouple
for LP
Figure 23 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Figure 25 - Incorrect Appearance of Pilot Flame
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