Desa VN600BA Safety Information And Installation Manual page 16

INSPECTING BURNER
Continued
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If burner flame pattern
shows yellow tipping, proceed
with the following instructions.
NOTICE: Do not mistake orange
flames with yellow tipping. Dust
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
BURNER FLAME PATTERN BLUE
FLAME MODELS
Figure 23 shows a correct burner flame pat-
tern. Figure 24 shows an incorrect burner
flame pattern. 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 24
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 14)
• see Cleaning, page 17
(Models VN600A and VP600A will be
CORRECT FLAME PATTERN
AT HIGH POSITION
lower due to lower input rating)
CORRECT FLAME PATTERN
AT HIGH POSITION
Figure 23 - Correct Burner Flame Pattern
INCORRECT FLAME PATTERN
AT HIGH POSITION
INCORRECT FLAME PATTERN
Figure 24 - Incorrect Burner Flame
AT HIGH POSITION
16
1/2 GLASS HEIGHT
1/2 GLASS HEIGHT
Yellow
Tipping
1/2 GLASS HEIGHT
1/2 GLASS HEIGHT
Pattern
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BURNER FLAME PATTERN
INFRARED MODELS
Figure 25 shows a correct burner flame pat-
tern. Figure 26 shows an incorrect burner
flame pattern.
If burner flame pattern is incorrect, as shown
in Figure 26
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 14)
• see Cleaning, page 17
Figure 25 - Correct Burner Flame Pattern
(Dual Burner Shown)
Figure 26 - Incorrect Burner Flame
Pattern (Dual Burner Shown)
110720-01M