Lennox International Inc. MPB35ST-NM - Manual (Page 6)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
6
To open the outside air shutter, open the bottom
control access panel, and pull the outside air
control lever all the way out. The outside air
shutter should be fully open when the fi replace
is in use and completely closed when the fi re-
place is not being used. Closing it when not in
use will prevent outside cold air from entering
the dwelling.
The hand operated outside air control lever is
located on the right side of the fi replace open-
ing. See Figure 5.
To open the outside air , open the bottom control
access panel, reach into the gap between the
fi rebox bottom and pull the outside air control
lever all the way out.
The outside air shutter should be fully open when
the fi replace is in use and completely closed
when the fi replace is not being used. Closing
it when not in use will prevent outside cold air
from entering the dwelling.
Operate the actuator through several cycles
including the closed position. Ensuring proper
operation and freedom of movement. Return
the actuator arm to the closed position.
WARNING
Do not operate the shutoff lever
unless a complete outside com-
bustion air system has been
installed with your appliance.
Outside Combustion Air Controls
Many appliances are equipped, when installed,
with an outside (make-up air) vent system
that is designed to provide the appliance with
outside make-up air for combustion when in
operation.
The outside air control lever for the outside
air system is standard on all appliances but
should not be operated if the complete system
is not installed. Refer to Figure 5. When the
complete outside air vent system is installed,
the installer will remove the securing screw
from the combustion air control lever located
on the right side of the fi replace opening.
If the securing screw has not been removed
and you have reason to believe that you have
a complete outside air system, contact your
distributor to have your appliance inspected for
the presence of the complete system. DO NOT
assume that you have this system in place.
Glass Front
Figure 5
Control Compartment Access Panel
Outside Air Control Lever
with Stop Behind
Securing Screw
Outside Air Control Lever
and Securing Screw Location
Inspect Venting System
The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualifi ed service technician
(inspection should include ensuring that exhaust
or intake passages are unobstructed and vent
components are properly assembled and not dam-
aged). 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.
Clean Lower Control Compartment
Keep lower control compartment clean by vacu-
uming 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 accumula-
tion 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.
MAINTENANCE
Cleaning Glass
(see Front Glass Enclosure Panel, Removal and
Installation on Page 9 ) 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 periodically
to remove any build-up caused from the fol-
lowing: (See Maintenance Schedule, Page 20 )
Refer to the maintenance schedule for maintenance
tasks, procedures, periodicity and by whom they
should be performed. Always verify proper opera-
tion of the appliance after servicing.
• 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 air-
borne 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.
WARNING
Turn off gas and electrical power
before servicing the appliance
.
CAUTION
Wear gloves and safety Glasses
for protection while doing
required maintenance
.
IMPORTANT
Always verify proper operation
after servicing.
IMPORTANT
Do not use abrasive cleaners on
glass. Never clean glass when hot.
Before re-lighting the fi replace, refer to the
lighting instructions in this manual. Instruc-
tions are also found on pull-out panels
located below the glass door in the control
compartment.