5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX MERIT
®
SERIES B-VENT GAS FIREPLACES • 36" LMBV MODELS • CARE AND OPERATION INSTRUCTIONS
Figure 5
Figure 6
To operate, push the end of the actuator to the
left as shown in Figure 6, until it "pops" free of
its "locked" position. Pull the actuator forward
to open the combustion air door, and push it
back to close. To "lock" the combustion air
door closed, ensure the actuator is pushed all
the way back, then push the end of the actua-
tors to the right until the step in the actuator
moves behind the appliance front face within
the slotted opening.
mANUAlly-RESET blOCkED FlUE SAFETy
SWITCH
This appliance is equipped with a manually-reset
blocked flue safety switch. Refer to Figure 7
for its location. If during appliance operation,
the flame goes out (independently of the burner
on/off wall switch), it may be due to the opera-
tion of this safety limit switch. First
allow the
appliance to coo
l, then reset the safety switch
by pushing the red reset button on the back
of the switch.
CAUTION: THE ElECTRONIC APPlIANCE
SHOUlD bE TURNED OFF bEFORE REmOvING
THE lImIT SWITCH.
To access the safety limit switch reset button,
remove the two screws. Pull out limit switch
with low voltage wires attached, push the reset
button, then reinstall the limit switch. At this
time turn the electronic appliance back on.
The appliance should then relight and remain
lit. If this does not occur,
turn off the appliance
and call a qualified service technician
.
The control lever snaps into place at either
extreme of its range of motion. When locked
in position all the way to the right, the damper
is open. When locked in position all the way to
the left, the damper is closed.
The damper lever actuates a switch, (see wiring
diagram) which will prevent the appliance main
burner from lighting unless the damper is locked
open. The appliance flue damper must always
remain open when operating.
C
A
G
Inside Chase
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough Framing Face (Unfinished Shown)
H
H
Optional FOAK
Combustion Air Kit
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 actuator for the outside air system is stan-
dard on all appliances but must not be operated
if the complete system is not installed. Refer to
Figure 6
.
When the complete outside air vent
system is installed, the installer will remove the
actuator locking screw.
If your screw is not 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 because you have
an actuating lever present on your appliance
front face.
Limit
Switch
Screws
Manual Reset Limit Switch
Lintel
Extention
Fireplace Front
Left Side Refractory Panel
To provide outside combustion air to your
appliance while it is in operation, locate the
combustion air actuator along the right side
of the appliance opening
(
Figure 5
).
WARNING: DO NOT OPERATE THE
COmbUSTION AIR ACTUATOR UNlESS
A COmPlETE OUTSIDE AIR vENT SyS-
TEm HAS bEEN INSTAllED WITH yOUR
APPlIANCE.
WARNING: DAmPER mUST bE IN OPEN
POSITION WHEN APPlIANCE mAIN
bURNER IS OPERATING.
AvERTISSEmENT: lE REGISTRE DOIT
êTRE EN POSITION OUvERTE lORSQUE
lE OU lES bRUlEURS PRINCIPAUx DE
l'APPEREIl FONCTIONNmENT.
Remove Locking Screw
and “Pop” Actuator to the
Left Before Initial Use
Combustion Air
Actuator
Pull Forward to Open,
Push Back to Close
Figure 7
