Lennox Hearth MPB3530CNE-B Indoor Fireplace User Manual


 
10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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 combustion 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
left side of the fireplace bottom 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.
To open the outside air shutter, open the bottom
control access panel, reach into control com-
partment and pull the combustion air control
lever all the way out. The outside air shutter
should be fully open when the fireplace is in
use and completely closed when the fireplace
is not being used. Closing it when not in use
will prevent outside cold air from entering the
dwelling.
Combustion Air Control Lever
and Securing Screw Location
Figure 5
Outside Air Control Lever
Outside Air Control Lever
Securing Screw
Air Shutter in Closed Position
Outside Air Control Lever
Securing Screw Removed
Air Shutter in Open Position
Outside Air Control Lever
WARNING
Do not operate the shutoff lever
unless a complete outside combus-
tion air system has been installed
with your appliance.
Figure 4
Blocked Flue Safety Limit Location
Inside View of Firebox -
Top/Right Side Intersection
Detail A
Detail C
Detail B
Scoop
Scoop Securing Screws
Fire Box Top
Lintel Securing Screw
Hole in Cabinet Top
Fire Box Top
Limit
Limit/Bracket
Securing Screws
Lintel Securing-Screw
Hole in Cabinet Top
View Without Scoop
Wire
Termianls
Back Of
Limit
Switch
Cabinet
Corner
Door
Frame