12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
WARNING
•
DO NOT attempt to install the
logs until the appliance instal-
lation has been completed, the
gas line connected and tested
for leaks and the initial burner
operation has been checked
out.
•
The size and position of the log
set was engineered to give the
appliance a safe, reliable and
attractive flame pattern. Any
attempt to use a different log
set in the fireplace will void
the warranty and will result in
incomplete combustion, soot-
ing, and poor flame quality.
•
Logs get very hot and will
remain hot up to one hour
after gas supply is turned off.
Handle only when logs are
cool. Turn off all electricity
to the appliance before you
install grate, volcanic stone,
vermiculite, embers and logs.
•
This appliance is not designed
to burn wood. Any attempt to
do so could cause irreparable
damage to the appliance and
prove hazardous to your safety.
•
If logs are not installed
according to the log instal-
lation instructions, flame
impingement and improper
combustion could occur and
result in soot and/or exces-
sive production of carbon
monoxide (CO), a colorless,
odorless, toxic gas.
LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS
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.
Step 8. Installing Logs and Glowing Embers
(rockwool) –
Step 7. Optional Outside Air Kits –
Combus-
tion (outside make-up air) kits, Model FOAK-4
or FAOK-4LD, may used with these appliances.
Refer to the installation instructions packaged
with the air kits for specific installation infor-
mation. The outside air kit must be installed
before the fireplace is framed and enclosed in
the finished wall.
Outside air drawn into the fireplace supplies air
to the fire for combustion. Only one combus-
tion air duct on the right side of the fireplace
is necessary if installed.
If additional length of duct is necessary, pur-
chase locally available U.L. Class 0 or Class 1
metallic ducting. The duct may extend up to
50' (15.24 m) in any direction.
There is one hand operated air gate shut-off, for
outside make-up air, located at the right side of
the fireplace opening behind the screen. To open,
lift and pull the handle out. The combustion air
damper should be
open when the fireplace is
in use
and, to prevent outside air from entering
your home, fully closed when the fireplace is
not in operation.
CAUTION: NEVER LOCATE INLET OF AN
OUTSIDE AIR HOOD WHERE IT CAN BE
BLOCKED BY SHRUBS, SNOW DRIFTS, ETC.
NEVER LOCATE INLET IN GARAGE OR ANY
AREA WHERE THERE IS ANOTHER FUEL
BURNING APPLIANCE OR PRODUCTS EMIT-
TING COMBUSTIBLE GASES SUCH AS PAINT,
GASOLINE, ETC. IN COLD CLIMATES, IT IS
RECOMMENDED THE COMBUSTION AIR DUCT
BE INSULATED.
Outside combustion air ducting may be run
upwards or vertically through framing and ceil-
ing joists, with the hood installed through an
outside wall and 3' (1 m) below the termination.
Ducting may also be run downward through
floor joists and under the home to a ventilated
crawlspace not considered part of the living
area of the home.
After installing the outside air kit, remove the
cover from the shut off lever in the left side of
the firebox opening.
NOTE:
Do not terminate combustion air kit in
attic space under any circumstances.
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.
NOTE:
Turn off all electricity to the appliance
before you install embers and logs. DO NOT
attempt to install the logs until the appliance
installation has been completed, the gas line
connected and tested for leaks and the initial
burner operation has been checked out.
INSTALLATION STEPS:
READ WARNINGS ON THIS PAGE BEFORE
PROCEEDING. FOLLOW THE LOG PLACEMENT
INSTRUCTIONS ExACTLY
The logs are packaged within the firebox. Re-
move the glowing embers from the packaging
and tear into dime size pieces. Do not use more
than is necessary.
Displace Volcanic Stone to the center of the
burner pan when removing and reinstalling
the burner tube.
The log set shown in this document
(
Figure
19
)
is typical, installation of all sets are similar.
Proper log placement is critical to prevent soot-
ing. Carefully position the ceramic fiber logs
over the burner as described in the following
steps, and detailed in
Figures 18 through 24
.
Note:
Logs should be placed in the gaps between
the flame peaks and should be positioned so
that at no time they impinge the flames.
The logs are packaged within the firebox. The
Volcanic Stone (2 bags) and Glowing Embers
(rockwool) (1 bag) are in the bottom of the
burner tray.
Spread 1-1/2 bags of Volcanic Stone evenly
inside of the burner tray, as shown in
Figure
18.
The rest of the 1/2 bag of Volcanic Stone
should be used only on LSBV-42 models, placed
on the open spaces on the bottom of the firebox
between the refractory and burner tray.
Figure 18
Volcanic Stone
Rear Log Pin
Rear Log Pin
Vertical Brackets
