Owner`s manual

27407-4-1010 Page 29
Figures 25 and 26 show a correct pilot ame pattern. The correct
ame will be blue and will extend beyond the thermocouple. The
ame will surround the thermocouple just below the tip. A slight
yellow ame may occur where the pilot ame and main burner
ame meet. Figures 27 and 28 show an incorrect pilot ame pattern.
The incorrect pilot ame is not touching the thermocouple. This will
cause the thermocouple to cool. When the thermocouple cools, the
heater will shut down.
Correct Pilot Flame Pattern for MILLIVOLT
Figure 25
Correct Pilot Flame Pattern for INTERMITTENT PILOT
Figure 26
Incorrect Pilot Flame Pattern for MILLIVOLT
Figure 27
Incorrect Flame Pattern for INTERMITTENT PILOT
Figure 28
If pilot ame pattern is incorrect, as shown in Figures 25 and 26
• See Troubleshooting, page 30.
THERMOPILE
(VFRL ONLY)
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
THERMOPILE
(VFRL ONLY)
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
PILOT FLAME CHARACTERISTICS
PILOT
THERMOCOUPLE
(NATURAL)
THERMOCOUPLE
(LPG)
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)