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DIRECT-VENT FIREPLACE
INSPECTING
BURNERS
Continued
Figure 59 shows a typical flame pattern for
MBDV37 and MBDV41.
If burner flame pattern differs from that
described:
• turn fireplace off (see To Turn Off Gas to
Appliance, page 26)
• see Troubleshooting, pages 31 through 34
Figure 59 - Typical Flame Pattern for
MBDV37 and MBDV41
CLEANING AND
MAINTENANCE
WARNING: Turn off fireplace
and let cool before cleaning.
CAUTION: You must keep con-
trol areas, burners, and circulat-
ing air passageways of fireplace
clean. Inspect these areas of fire-
place before each use. Have fire-
place inspected yearly by a quali-
fied service person. Fireplace may
need more frequent cleaning due
to excessive lint from carpeting,
bedding material, pet hair, etc.
GLASS DOOR
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.
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. There-
after, 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
22 of this manual when removing glass door
for cleaning.
WARNING: Only parts sup-
plied by the manufacturer should
be used when replacing broken
or damaged glass door panel (see
Replacement Parts , page 35). This
glass door panel is a complete
unit. No substitute materials may
be used.
CAUTION: Wear gloves and
safety glasses while handling or
removing broken glass. Do not
remove if glass is hot. Keep chil-
dren and pets away from glass.
If glass has been broken, carefully remove
glass door (see Removing/Replacing Glass
Door, page 22). Vacuum all glass pieces
with a shop vac.
CAUTION: Do not vacuum if
pieces are hot.
28
Use only the glass door replacement in-
tended for this fireplace (see Replacement
Parts, page 35 for detail on ordering). No
substitutions may be made. See Removing/
Replacing Glass Door, page 22 for instruc-
tions for replacing glass door.
WARNING: Do not operate
fireplace with the glass door re-
moved, cracked, or broken.
PILOT AND BURNERS
• Remove ember material before cleaning
burners and replace when cleaning is
complete.
• Burner and controls should be cleaned with
compressed air to remove dust, dirt, or lint.
• Use a vacuum cleaner or small, soft bristled
brush to remove excess dust, dirt, or lint.
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, Lava Rock, and Glowing
Embers, page 24, to properly replace logs.
• Use a vacuum cleaner to remove any car-
bon build up on logs.
• Replace log(s) if broken. See Replace-
ment Parts on page 35.
• Replace ember material periodically as
needed. See Replacement Parts on page 35.
VENTING SYSTEM
Conduct annual inspection of the venting
system following these guidelines:
1.
Check areas of venting system that are
exposed to the weather for corrosion (rust
spots or streaks and, in extreme cases,
holes). Have these items replaced imme-
diately by a qualified service person.
2.
Remove the vent cap and shine a flash-
light into the vent. Remove any foreign
material.
3.
Check for evidence of excessive con-
densation. Continuous condensation
can cause corrosion of caps, pipes, and
fittings and can be caused by having
excessive lateral runs, too many elbows,
or exterior portions of the system be-
ing exposed to cold weather.
4. Inspect joints to verify that no pipe sec-
tion or fitting has been disturbed and
loosened. Check mechanical supports
such as wall straps for rigidity.
106497
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