Maytag LMDV-40 SERIES Gas Heater User Manual


 
6
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
IMPORTANT
Do not use abrasive cleaners
on glass. Never clean the glass
when it is hot.
• During start-up, it is normal for condensa-
tion to form on the inside of the glass (this
condensation and fog will usually disappear
in a few minutes). The moisture can cause
lint, dust and other airborne particles to cling
to the glass surface.
• Initial curing of the high temperature paint
and burning off of lubricants used in the
manufacturing process may result in a fi lm
on the glass.
• A white coating may form on the glass as a
result of impurities and minerals in the fuel.
It is recommended that the glass be cleaned
two or three times during each heating season,
depending on the circumstances present. The
following cleaning solutions are approved for use
to clean glass:
• Non-ammonia based household cleaner
• 50%-50% mix of white vinegar & water
• Gas fi replace/stove glass cleaner
Inspect Glass Gasket - Visually inspect the
gasket on the backside of the glass enclosure
panels. The gasket surface must be clean, free
of irregularities and seated fi rmly.
Clean Logs And Burner
Carefully remove the logs (use care when han-
dling the fi ber logs, as they become quite fragile
after curing). Vacuum out any foreign matter
(lint, carbon, etc). on the burner. Ensure the
burner ports are “open.” Remove any carbon
deposits from the under side of the logs using
a vacuum cleaner, or a soft bristled brush (i.e.
paint brush). Note: Improper positioning of
logs can create carbon build-up and will alter
the performance of the appliance.
WARNING
Label all wires prior to discon-
nection when servicing con-
trols. Wiring errors can cause
improper and dangerous opera-
tion. Verify proper operation
after servicing.
Inspect and clean all wire connections. Ensure
that there is no melting or damage. Inspection
should include:
Terminals at the Valve
• OFF/ON Switch
(Optional Control Switch) Wall Thermostat,
Remote Control or Remote Wall Switch Kit
Inspect Burner Flame Appearance
Ensure that the burner flame appearance
resembles the fl ame shown in Figures 10 &
11 and as described in Flame Appearance and
Sooting on Page 11. The Homeowner must
contact a qualifi ed service technician at once
if any abnormal condition is observed.
Small Area Paint Touch-up
The fi nish of the appliance is a high quality
powdercoat. Only use factory supplied powder-
coat paint kit for touch-ups. Paint is available at
your local authorized Lennox Hearth Products
dealer (cat. no. 90L74). Never attempt to paint
a hot fi replace.
Do not attempt to repaint the appliance until the
fi nish is completely cured (see Burn-In Period
on Page 3 ) . If the surface later becomes stained
or marred, it may be lightly sanded and touched
up with spray paint.
Replacing Logs -
If the logs become damaged by accident or im-
proper handling and need replacement, use only
the proper replacement logs from manufacturer
(see Pages 22 & 23 for ordering information).
Re-Install Embers, Logs and Vermiculite
- Carefully follow placement instructions on
Pages 8 to 10 ). All logs should fi t onto cor-
responding pins and/or log stoppers. This will
ensure a proper fl ame and safe combustion.
Inspect Wiring
Refer to wiring diagrams on Page 13.
Clean Lower Control Compartment
Keep lower control compartment clean by
vacuuming or brushing it out at least twice a
year (also clean the air venturi with a brush or
wire). More frequent cleaning may be required
due to accumulation of lint from carpeting,
bedding materials, pet hair, spider webs, etc. It
is very important that control compartments,
burners, circulating air passageways and air
venturi on the appliance are NOT obstructed
in any way.
Cleaning Glass
(see Front Glass Enclosure Panel, Removal
and Installation on Page 7) Note: Clean glass
after fi rst two weeks of operation (after Burn-In
period is over) and then only when necessary
and when the fi replace is cool. Wipe surface
with clean, dampened, soft cloth. Follow with
dry, soft towel as desired. Take care not to
scratch the glass surface.
The viewing glass should be cleaned periodi-
cally to remove any build-up caused from the
following:
WARNING
Handle this glass with extreme
care! Tempered glass is suscep-
tible to damage – do not scratch
or handle roughly while rein-
stalling the glass door frame.
Front Glass Enclosure Panel, Removal
and Installation
WARNING
Do not operate appliance with the
glass front removed, cracked or
broken. Replacement of the glass
should be done by a licensed or
qualifi ed service technician.
WARNING
Do not attempt to substitute the
materials used on this door, or
replace cracked or broken glass
with any materials other than
those provided by the appliance
manufacturer.
WARNING
The glass door of this appli-
ance must only be replaced as a
complete unit as provided by the
manufacturer. Do not attempt to
replace broken, cracked or chipped
glass separately.
WARNING
Do not attempt to touch the front
enclosure glass with your hands
while the fi replace is in use.
These are direct-vent appliances. They are
designed to operate only when the front glass
enclosure panel is installed. Generally the front
glass enclosure panel should not be removed
except to gain access to the components within
the fi rebox, and the appliance may only be op-
erated without the front glass enclosure panel
in place for very brief periods of time during
appliance checkout and adjustment. Note: The
ame appearance will be diminished while the
front glass enclosure panel is removed.
During this appliance checkout and adjust-
ment period, a potential safety hazard exists
- EXERCISE EXTREME CAUTION to prevent
the occurrence of any burn injuries from the
exposed fl ames or hot surfaces. Also note, that
while the front glass enclosure panel (or any of
the panels) is removed, the fl ame appearance
will appear to be smaller than normal.