Flame Appearance - Prime Heat PH18 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 fl ame must always be present when the heater is in operation. It should just touch the top of the
thermocouple tip for natural. See Figures 35 and 37 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. See Figures 36 and 38
for incorrect shape of pilot flame.
MILLIVOLT CONTROL
Thermocouple
for Natural
Thermocouple
for LP
Figure 35 - Correct Appearance of Pilot Flame
MANUAL CONTROL
Thermocouple
for Natural
Thermocouple
for LP
Figure 37 - Correct Appearance of Pilot Flame
24
Thermocouple
for Natural
Thermocouple
for LP
Figure 36 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Figure 38 - Incorrect Appearance of Pilot Flame
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