PILOT FLAME CHARACTERISTICS

Figures 13 and 16 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 14 and 17 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.

VFHS-20R PILOT

Correct appearance of pilot flame.

Figure 13

This will blow out foreign materials such as dust, lint and spider webs. Tighten nut B also by grasping nut A.

Figure 15

VFHS-20/10T PILOT

Incorrect appearance of pilot flame.

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

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.

Correct Pilot Flame Pattern

Figure 16

Incorrect Pilot Flame Pattern

Figure 17

If pilot flame pattern is incorrect, as shown in Figure 17

See Troubleshooting, page 19.

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Empire Comfort Systems VFHS-20/10T-4, VFHS-20R-4 Pilot Flame Characteristics, VFHS-20R Pilot, VFHS-20/10T Pilot

VFHS-20R-4, VFHS-20/10T-4 specifications

Empire Comfort Systems has consistently been a frontrunner in the heating industry, and their VFHS-20R-4 and VFHS-20/10T-4 models are prime examples of their commitment to quality and innovation. Designed for efficient and effective heating solutions, these units offer unique features that cater to diverse customer needs.

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