Vanguard Heating VMH10TNB Inspecting Burner, Pilot Flame Pattern, Burner Flame Pattern

Models: VMH10TNB

1 28
Download 28 pages 40.09 Kb
Page 19
Image 19
INSPECTING

OWNER’S MANUAL

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 31 shows a correct pilot flame pattern. Figure 32 shows an incorrect pilot flame pattern. The incorrect pilot flame is not prop- erly heating the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the fireplace will shut down.

If pilot flame pattern is incorrect, as shown in Figure 32

turn fireplace off (seeTo Turn Off Gas to Appliance, page 18)

seeTroubleshooting, pages 20 through 22

BURNER FLAME PATTERN

Figure 33 shows a correct burner flame pattern. Figure 34 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows the flame consistently higher than one inch above the log.

If burner flame pattern is incorrect, as shown in Figure 34

turn fireplace off (seeTo Turn Off Gas to Appliance, page 18)

seeTroubleshooting, pages 20 through 22

Top of Flame About

One Inch Below Logs

Thermocouple

Pilot Burner

Figure 33 - Correct Burner Flame Pattern

Top of Flame Consistently About

One Inch Higher Than Logs

Figure 31 - Correct Pilot Flame Pattern

(Actual Pilot May Vary From Illustration)

Figure 34 - Incorrect Burner Flame Pattern

Thermocouple

Pilot Burner

Figure 32 - Incorrect Pilot Flame Pattern

(Actual Pilot May Vary From Illustration)

107031

19

Page 19
Image 19
Vanguard Heating VMH10TNB installation manual Inspecting Burner, Pilot Flame Pattern, Burner Flame Pattern