Empire Comfort Systems VFSUE18-1, Инструкция по установке и руководство пользователя

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31722-1-1213 Page 30
Figure 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.
VFSu(r,e) PILOT FLAMe PATTerN (VFSue pilot will not
have a thermopile)
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
correct Pilot Flame Pattern
Figure 25
If pilot flame pattern is incorrect, as shown in Figure 26
• See Troubleshooting, page 21 and 28.
THERMOPILE
PILOT
THERMOCOUPLE
(LPG)
THERMOCOUPLE
(NATURAL)
Incorrect Pilot Flame Pattern
Figure 26
cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot
When the pilot has a large yellow tip flame, clean the Oxygen
Depletion Sensor as follows:
1. Clean the ODS pilot by loosening nut B from the pilot tubing.
When this procedure is required, grasp nut A with an open end
wrench.
2. Blow air pressure through the holes indicated by the arrows.
This will blow out foreign materials such as dust, lint and spider
webs. Tighten nut B also by grasping nut A.
Figure 27
wArNING
Never use needles, wire or similar cylindrical objects to clean
the pilot to avoid damaging the calibrated ruby that controls the
gas flow.
PILOT FLAMe cHArAcTerISTIcS