Inspecting Burner; Wiring Diagram - Firewerks SBJ18VNA Owner's Operation And Installation Manual

INSPECTING BURNER

Check pilot flame pattern and burner flame pat-
terns often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot flame pattern.
Figure 24 shows 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.
If pilot flame pattern is incorrect, as shown in
Figure 24
• turn heater off (see To Turn Off Gas to Appli-
ance, page 17)
• see Troubleshooting, page 22
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.
Pilot Burner
Figure 23 - Correct Pilot Flame Pattern
(Your pilot may vary from pilots shown)
Figure 24 - Incorrect Pilot Flame Pattern
(Your pilot may vary from pilots shown)
BURNER FLAME PATTERN
Figure 25 shows correct burner flame pattern.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles are burned
by heater, causing brief patches
of orange flame.
20
Thermocouple
www.desatech.com
Figure 25 - Correct Burner Flame Pattern
Figure 26 - Incorrect Burner Flame

WIRING DIAGRAM

When Using Remote
Blue and Bright
Yellow Flames
Darker
Orange
Flames
Pattern
114744-01C
Thermopile