Empire Comfort Systems VFSR-16-5 Installation instructions and owner's manual - Pilot Flame Characteristics
28682-1-0811
Page 16
Figure 13 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 14 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.
VFSr PILOT
Correct pilot flame pattern.
Figure 13
Incorrect pilot flame pattern.
Figure 14
If pilot flame pattern is incorrect, as shown in Figure 14:
• See Troubleshooting, page 19.
cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot (Figure 15)
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 15
cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot (Figure 16)
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.
cAuTION
Never use needles, wires, or similar cylindrical objects to
clean the pilot to avoid damaging the calibrated ruby that
controls the gas flow.
Figure 16