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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX MERIT
®
SERIES B-VENT GAS FIREPLACES • 36" LMBV MODELS • INSTALLATION INSTRUCTIONS
Figure 14
Note: Supply wires may be alternatively connected to the outlet using the screw terminals, however
the black supply wire must be wired to a terminal that is opposite (across the outlet) the point
where the white supply wire is connected.
Figure 15
Figure 16
Locate the actuator arm along the right side
of the appliance firebox opening and refer to
Figure 16. After completing the installation
of the Outside Combustion Air Kit remove and
discard the actuator arm locking screw.
To operate, push the end of the actuator to
the left as shown in Figure 16, 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.
3/8" Nipple
Gas Stub
1/2" x 3/8" Flare
Shut-Off Valve
3/8" Flex Tubing
3/8" NPT Flare
Fitting (Remove
Before Hard Piping)
3/8" Union
3/8" Close Nipple
3/8" Shut-Off Valve
1/2" x 3/8" Reducer
Gas Valve
(Millivolt or
Electronic)
Gas Flex Line (provided)
Alternate “Hard Piping”
(may be required in some areas, consult local codes.)
Note: 1/2" NPT At Inlet Of Gas Valve For Electronic Models.
WARNING: DO NOT REMOVE THE ACTUA-
TOR ARM LOCKING SCREW UNLESS THE
COMPLETE OUTSIDE AIR VENT SYSTEM
HAS BEEN INSTALLED IN ACCORDANCE
WITH THE DETAILED INSTRUCTIONS
PROVIDED WITH THE KIT.
White
(Supply)
Black
(Supply)
Bipolar
Terminal
Screw
120 Vac
60 Hz
Green Wire Ground
Connection
Red
(Supply)
120 Vac
60 Hz
120 Vac
60 Hz
Step 7. Install (Optional) Outside
Air Kit
These appliances are equipped with an outside
(make-up) air door and integral actuator arm. If
the appliance is to be installed with an outside air
vent system, use only Lennox Models FAOK-4
or FAOK-4LD Combustion Air Kits.
After completing the installation of the optional
combustion air vent system the actuator arm
must be put in service and tested to ensure
proper operation before completing any enclo-
sure around the firebox. Failure to do so may
result in extensive and costly rework.
Remove Locking Screw
and “Pop” Actuator to the
Left Before Initial Use
Combustion Air
Actuator
Pull Forward to Open,
Push Back to Close