Maintenance - Lennox MPB33CNM Care And Operation Instructions Manual

LENNOX HEARTH PRODUCTS • MERIT PLUS

MAINTENANCE

Refer to the maintenance schedule on
Page 22 for maintenance tasks, procedures,
and the frequency and by whom they should
be performed. Always verify proper operation
of the appliance after servicing.
WARNING
Turn off gas and electrical
power to the fi replace and
allow it to cool before cleaning
or servicing the appliance.
CAUTION: Wear gloves and safety glasses
for protection while doing required
maintenance.
VERIFY PROPER OPERATION AFTER
SERVICING.
S'assurer que l'appareil fonctionne
adéquatement une fois l'entretien
terminé.
Always turn off gas to the pilot before
cleaning. Before re-lighting, refer to the
lighting instructions in this manual (see
Page 23). Instructions are also found on
a pull-out panel located in the control
compartment.
Always keep the appliance area clear and free
from combustible materials, gasoline and
other fl ammable liquids.
INSPECT VENTING SYSTEM
The appliance and venting system should
be thoroughly inspected before initial use
and, at a minimum, annually by a qualifi ed
service technician. Inspection should
include ensuring the exhaust passage is
unobstructed and vent components are
properly assembled and not damaged.
Contact a qualifi ed service technician at once
if any abnormal conditions are observed.
If the venting system is disassembled for any
reason, a qualifi ed service technician should
follow vent installation instructions for proper
reassembly and proper sealing of the venting
system components. However, more frequent
periodic inspections and cleanings should be
performed by the homeowner.
CLEANING GLASS
See "Front Glass Enclosure Panel,
Removal, and Installation" on Page 11.
NOTE: Do not clean the viewing glass
before completing the burn-In period (the
fi rst two weeks of operation). Clean the
glass only when necessary and when the
fi replace is cool. Wipe the surface with a
clean, damp, soft cloth. Follow with a dry,
soft towel. Take care not to scratch the
glass surface.
10
® B-VENT GAS FIREPLACES (MPB33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
WARNING: Never use abrasive cleaners on
the glass, or clean the glass when it is hot.
The viewing glass should be cleaned
periodically to remove any build-up caused
by the following:
• During start-up, it is normal for
condensation 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.
• During the initial curing of the high
temperature paint and burning off of
lubricants used in the manufacturing
process, a fi lm may collect on the glass.
• A white coating may form on the glass as
a result of impurities and minerals in the
fuel.
Clean the glass two or three times each
heating season, as necessary.
The following cleaning solutions are
approved for use to clean glass:
• Non-ammonia based household cleaner
• 50/50 mix of white vinegar and water
• Gas fi replace/stove glass cleaner
INSPECT GLASS GASKET
Visually inspect the gasket on the back side
of the glass enclosure panels. The gasket
surface must be clean, free of irregularities,
and seated fi rmly.
CLEAN CONTROL COMPARTMENT
Keep the control compartment clean by
vacuuming or sweeping it out at least twice a
year. More frequent cleaning may be required
due to excessive lint from carpeting, bedding
material, etcetera. It is imperative that control
compartments, burners and circulating air
passageways of the appliance be kept clean.
CLEAN LOGS AND BURNER
Carefully remove the logs (use care when
handling 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 the logs can
create carbon build-up and will alter the
performance of the appliance.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
REPLACING LOGS
If the logs become damaged by accident or
improper handling and need replacement,
use only the proper replacement logs from
manufacturer (see Page 18 for ordering
information).
RE-INSTALL EMBERS AND LOGS
Carefully follow placement instructions
on Page 12. All logs should fi t onto the
corresponding pins and/or log stoppers.
This will ensure a proper fl ame and safe
combustion.
INSPECT WIRING
Refer to "Wiring Diagrams" on Page 18.
CAUTION: Label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation. Verify proper
operation after servicing.
ATTENTION: Au moment de l'entretien
des commandes, étiquetez tous les fi ls
avant de les débrancher. Des erreurs
de cáblage peuvent entraîner un
fonctionnement inadéquat et dangereux.
Inspect and clean all wire connections.
Ensure that there is no melting or damage.
Inspection should include:
• Terminals at the valve
• ON/OFF Switch (optional unit mounted
switch) or standard CPI switch (electronic
models only)
• Remote control or remote wall switch kit
(optional control switch)
INSPECT BURNER FLAME AND PILOT
FLAME APPEARANCE
Periodically do a visual check of the burner
fl ame and the pilot fl ame. Ensure that the
burner fl ame appearance resembles the fl ame
shown in Figures 11, 12, and 13 and as
described in Flame Appearance and Sooting
on Page 16. Refer to Figure 14 on Page 17
for more information about the pilot fl ame
appearance. Contact a qualifi ed service
technician at once if any abnormal condition
is observed.
SMALL AREA PAINT TOUCH-UP
Use only a factory supplied paint kit for
touch-ups. Paint is available from Lennox
Hearth Products dealers. 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 7). If the surface later
becomes stained or marred, it can be lightly
sanded and touched up with spray paint.