Inspecting Burners - Desa VSGF28NTF Owner's Operation And Installation Manual

BLOWER
OPERATION
WARNING: This fireplace has
a three-prong, grounded electrical
plug. This plug helps protect you
against electrical shock. Only con-
nect plug to a properly grounded,
three-prong receptacle. Do not cut
or remove the grounding prong
from this plug.
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 29 shows a correct pilot flame pattern.
Figure 30 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not touching
the thermocouple. This will cause the thermo-
couple to cool. When the thermocouple cools,
the fireplace will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 30
• turn fireplace off (see To Turn Off Gas to
Appliance, page 19)
• see Troubleshooting, page 23
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.
Figure 29 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Figure 30 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)
FRONT BURNER FLAME PATTERN
Figure 31 shows correct front burner flame
pattern. Figure 32 shows incorrect front
burner flame pattern. The incorrect burner
20
oPeraTion
Continued

insPecTinG bUrners

Pilot Burner
Thermocouple
Pilot Burner
Thermocouple
www.desatech.com
Locate the blower switch by opening lower
louver on fireplace. Blower switch is located
at lower left inside louver door.
This thermostat-controlled blower has a vari-
able speed control with an ON/OFF switch. The
blower will start when the thermostat senses a
sufficient increase in firebox temperature.
Note: It is safe to operate fireplace with blower
turned off. However, the blower helps distribute
heated air from the fireplace.
Note: Periodically check the louvers of the
firebox and remove any dust, dirt or other
obstructions.
flame pattern shows yellow tipping at top of
blue flame.
WARNING: If front burner
flame pattern shows yellow tip-
ping, your fireplace could pro-
duce increased levels of carbon
monoxide. Follow instructions at
bottom of this page. Yellow flame
on rear burner is normal.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles are burned
by fireplace, causing brief
patches of orange flame.
If front burner flame pattern is incorrect, as
shown in Figure 32
• turn fireplace off (see To Turn Off Gas to
Appliance, page 19)
• see Troubleshooting, page 23
CORRECT FLAME PATTERN AT HIGH POSITION
Figure 31 - Correct Front Burner Flame
CORRECT FLAME PATTERN AT HIGH POSITION
Figure 32 - Incorrect Front Burner Flame
INCORRECT FLAME PATTERN AT HIGH POSITION
INCORRECT FLAME PATTERN AT HIGH POSITION
Pattern
Yellow
Tipping
At Top
of Blue
Flame
Pattern
119303-01E