Pilot Flame Characteristics - Empire Comfort Systems VFLC10IN32N-1 Installation Instructions And Owner's Manual

Figures 25 shows a correct pilot flame pattern. The correct flame
will be blue and will extend beyond the thermocouple. The flame will
surround the thermocouple just below the tip. A slight yellow flame
may occur where the pilot flame and main burner flame meet. Figure
26 shows an incorrect pilot flame pattern. The incorrect pilot flame
is not touching the thermocouple. This will cause the thermocouple
to cool. When the thermocouple cools, the heater will shut down.
MILLIVOLT PILOT
THERMOPILE
THERMOPILE
THERMOCOUPLE
THERMOCOUPLE
(PROPANE)
(LPG)
Correct Pilot Flame Pattern
THERMOPILE
THERMOPILE
THERMOCOUPLE
THERMOCOUPLE
(PROPANE)
(LPG)
Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 26
• See Troubleshooting, page 27
Page 26

PILOT FLAME CHARACTERISTICS

PILOT
PILOT
THERMOCOUPLE
THERMOCOUPLE
(NATURAL)
(NATURAL)
Figure 25
PILOT
PILOT
THERMOCOUPLE
(NATURAL)
Figure 26
.
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