Inspecting Burners; Cleaning And Maintenance - Desa Tudor VT36NA Series Owner's Operation And Installation Manual

INSPECTING bURNERS

Check pilot flame pattern and burner flame pat-
terns often.
PILOT ASSEMBLY
The pilot assembly is factory preset for the proper
flame. Alterations may have occurred during ship-
ping and handling. The pilot is located on the back
right hand side of the burner.
The flame must envelope 1/4" of top of the ignitor/
sensor and grounding stem.
If your pilot assembly does not meet these re-
quirements:
• Turn the adjustment screw marked PILOT clock-
wise to decrease or counterclockwise to increase
the flame to proper size (see Figure 54). Do not
remove the adjustment screw.
• see Troubleshooting, page 32
Thermopile
3/8" to 1/2"
Piezo
Ignitor
Figure 54 - Pilot Assembly
BURNER FLAME PATTERN
Burner flames will be steady; not lifting or floating.
Flame patterns will be different from unit to unit
and will vary depending on installation type and
weather conditions.
If the vent configuration is installed incorrectly,
the flames will lift or "ghost". This can be danger-
ous. Inspect the flames after installation to ensure
proper installation and performance.
Figure 55 shows a typical flame pattern.
If burner flame pattern differs from that described:
• turn fireplace off (see To Turn Off Gas to Ap-
pliance, page 27)
• see Troubleshooting, page 32
Figure 55 - Typical Flame Pattern
30
Pilot Burner GLASS DOOR
1/8"
Thermocouple
Glass must be cleaned periodically. During start-
up it is normal for condensation to form on the
inside of the glass causing lint, dust, and other
airborne particles to cling to the glass surface.
During initial start-up a slight film may form on
the glass due to paint curing. The glass should be
cleaned several times with a non-ammonia, non-
abrasive household cleaner and warm water after
the first two weeks of operation. Thereafter, clean
the glass two or three times during each heating
season, depending on the usage and circumstances
present. Refer to Removing/Replacing Glass Door
on page 24 of this manual when removing glass
door for cleaning.
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CLEANING AND
MAINTENANCE
WARNING: Turn off fireplace
and let cool before cleaning.
CAUTION: You must keep
control areas, burners, and
circulating air passageways of
fireplace clean. Inspect these
areas of fireplace before each
use. Have fireplace inspected
yearly by a qualified service
person. Fireplace may need
more frequent cleaning due to
excessive lint from carpeting,
bedding material, pet hair, etc.
WARNING: Handle glass
door panel with care. Do not
strike, slam, or otherwise abuse
glass. Do not operate fireplace
with the glass door removed,
cracked, or broken.
WARNING: Do not use abra-
sive cleaners as this may damage
glass. Use a nonabrasive house-
hold glass cleaner to clean glass.
Do not clean glass when hot.
111250-01E