Desa 10542 用户手册
www.desatech.com
113680-01A
18
BURNER FLAME PATTERN
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide.
duce increased levels of carbon
monoxide.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
Figure 25 shows a correct burner flame pattern.
Figure 26 shows an incorrect burner flame pat-
tern. The incorrect burner flame pattern shows
yellow tipping of the flame. It also shows the flame
higher than 1/2 the glass panel height.
If burner flame pattern is incorrect, as shown in
Figure 26
• turn heater off (see To Turn Off Gas To Appli-
Figure 26 shows an incorrect burner flame pat-
tern. The incorrect burner flame pattern shows
yellow tipping of the flame. It also shows the flame
higher than 1/2 the glass panel height.
If burner flame pattern is incorrect, as shown in
Figure 26
• turn heater off (see To Turn Off Gas To Appli-
ance, page 16 or 17)
• see Troubleshooting, page 20
1/2 G
1/2 G
INPECTING HEATER
Check pilot flame pattern and burner flame pat-
tern often.
tern often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot flame pattern. Fig-
ure 24 shows an incorrect pilot flame pattern. The
incorrect pilot flame is not touching the thermo-
couple. This will cause the thermocouple to cool.
When the thermocouple cools, the heater will shut
down.
If pilot flame pattern is incorrect, as shown in Fig-
ure 24
• turn heater off (see To Turn Off Gas to Appli-
ure 24 shows an incorrect pilot flame pattern. The
incorrect pilot flame is not touching the thermo-
couple. This will cause the thermocouple to cool.
When the thermocouple cools, the heater will shut
down.
If pilot flame pattern is incorrect, as shown in Fig-
ure 24
• turn heater off (see To Turn Off Gas to Appli-
ance, page 16 or 17)
• see Troubleshooting, page 20
Note:
The pilot flame on natural gas units will
have a slight curve, but flame should be blue and
have no yellow or orange color.
have no yellow or orange color.
Figure 24 - Incorrect Pilot Flame Pattern
Figure 23 - Correct Pilot Flame Pattern
Thermocouple
Pilot Burner
Pilot
Burner
Burner
Thermocouple
Blue Flame
Yellow Flame
Figure 25 - Correct Burner Flame Pattern
Yellow
Tipping
Tipping
Figure 26 - Incorrect Burner Flame
Pattern
1
/
2
Glass
Height
1
/
2
Glass
Height
Blue
Flame
Flame