Empire Comfort Systems VFSM-24-3 Manuel D’Utilisation

Page 16

18954-0-0705

Figures 16 and 19 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 17 and 20 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.
VFSR PILOT

Correct appearance of pilot ﬂame.

Figure 16

Incorrect appearance of pilot ﬂame.

Figure 17

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

• See Troubleshooting, page 19.

Cleaning and Maintenance/Pilot

Oxygen Depletion Sensor Pilot (Figure 18 )

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 18

VFSV AND VFSM PILOT

Correct Pilot Flame Pattern

Figure 19

Incorrect Pilot Flame Pattern

Figure 20

If pilot ﬂame pattern is incorrect, as shown in Figure 20

• See Troubleshooting, page 19.

PILOT FLAME CHARACTERISTICS