Empire Comfort Systems VFP20IN20, Инструкция по установке и руководство пользователя

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26497-1-0310 Page 27
Figures 22 and 24 show 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. Figures 23 and 25 show 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
Correct pilot Flame pattern
Figure 22
Incorrect pilot Flame pattern
Figure 23
If pilot flame pattern is incorrect, as shown in Figure 23
• See Troubleshooting, page 28.
HyDRAULIC THERMOSTAT pILOT
Correct pilot Flame pattern
Figure 24
Incorrect pilot Flame pattern
Figure 25
If pilot flame pattern is incorrect, as shown in Figure 25
• See Troubleshooting, page 28.
PILOT FLAME CHARACTERISTICS
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)