Inspecting Burners - Superior VRT4032ZMN Installation And Operation Instructions Manual

Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 41 shows a correct pilot flame pattern.
Figure 42 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not properly
heating the thermocouple. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 42
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 22)
• see Troubleshooting, page 25
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.
Thermocouple
Figure 41 - Correct Pilot Flame Pattern
Pilot Burner
Figure 42 - Incorrect Pilot Flame Pattern
MAIN BURNER
Periodically inspect all burner flame holes with
the heater running. All slotted burner flame
holes should be open with yellow flame pres-
ent. All round burner flame holes should be
open with a small blue flame present. Some
burner flame holes may become blocked by
debris or rust, with no flame present. If so,
turn off heater and let cool. Remove blockage.
Blocked burner flame holes may create soot.
BURNER FLAME PATTERN
WARNING: If incorrect burner
flame pattern occurs, your fireplace
could produce increased levels of
carbon monoxide.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt or
other fine particles are burned by
fireplace, causing brief patches of
orange flame.
126868-01A

INSPECTING BURNERS

Pilot Burner
Thermocouple
www.SuperiorFireplaces.US.com
Figure 43 shows the correct burner flame.
The front ember burner should have a small
blue flame. When the ember material is ap-
plied, the embers will glow red and the flame
may have a few small bright yellow tips less
than 1/2 inch in height.
The middle burner produces a blue flame
that impinges upon the ceramic ramp caus-
ing the ramp to glow red with an occasional
yellow streak.
The rear burner produces a bright yellow
flame with the base of the flame being blue.
Figure 44 shows the incorrect burner flame.
The front ember burner should not produce
yellow flames greater than 1/2" in height or
any dark yellow or orange flames.
The middle burner should not produce flame
that remains yellow or yellow flame that ex-
tends above the ceramic ramp.
The rear burner should not produce a dark
yellow / orange flame nor should it be absent
of blue color near the base of the flame next
to the shiny stainless steel burner..
If burner flame pattern is incorrect, as shown
in Figure 44.
• turn fireplace off (see To Turn Off Gas to
Appliance, page 22)
• see Troubleshooting, page 25
Bright yellow
rear burner
Middle burner
flame; flame
flame should
will be blue
be blue with
next to burner
the ramp/
log glowing
orange/red
Figure 43 - Correct Burner Flame Pattern
Dark orange rear
burner flame
Yellow
tipping
on ember
flame
Figure 44 - Incorrect Burner Flame Pattern
Small blue
flame on
ember
burner with
no yellow
tipping
Yellow
or dark
orange
middle
burner
flame
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