Pre-Installation Steps; Typical Installation Sequence; Step 1. Framing; Step 2. Routing Gas Line - Lennox Crestline LSBV-3628MN Installation Instructions Manual

LENNOX HEARTH PRODUCTS • CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS
WARNING
Failure to position the parts in
accordance with these diagrams
or failure to use only parts specifi-
cally approved with this appliance
may result in property damage or
personal injury.
AVERTISSEMENT
Risque de dommages ou de
blessures si les pièces ne sont
pas installées conformément à
ces schémas et ou si des pièces
autres que celles spécifiquement
approuvées avec cet appareil sont
utilisées.

PRE-INSTALLATION STEPS

The fireplace may be installed directly on a
combustible floor or raised on a platform of
an appropriate height. Do not place fireplace on
carpeting, vinyl or other soft floor coverings. It
may, however, be placed on flat wood, plywood,
particle board or other hard surfaces. Be sure
fireplace rests on a solid continuous floor or
platform with appropriate framing for support
and so that no cold air can enter the room from
under the fireplace.
The fireplace may be positioned and then the
framing built around it, or the framing may be
constructed and the fireplace positioned into
the opening.
Usually, no special floor support is needed for
the fireplace, however, to be certain:
1. Estimate the total weight of the fireplace
system and surround materials such as
brick, stone, etc., to be installed.
2. Measure the square footage of the floor
space to be occupied by the system, sur-
rounds and hearth extensions.
3. Note the floor construction, i.e. 2 x 6's, 2 x
8's or 2 x 10's, single or double joists, type
and thickness of floor boards.
4. Use this information and consult your lo-
cal building code to determine if you need
additional support.
If you plan to raise the fireplace and hearth
extension, build the platform assembly then
position fireplace and hearth extension on
top. Secure the platform to the floor to prevent
possible shifting.
8

TYPICAL INSTALLATION SEQUENCE

The typical sequence of installation is outlined
below; however, each installation is unique,
resulting in variations to the steps described
herein.
1. Construct the appliance framing.
2. Route gas supply line to appliance location.
3. Position the appliance.
4. Install the vent system and exterior termi-
nation.
5. Field wire and install operating control switch.
6. Make connection to gas supply.
7. Install (optional) outside Air Kit.
8. Install the logs and glowing embers
(rockwool).
9. Check appliance operation.
10. Adjust burner to ensure proper flame
appearance.
11. Attach "Safety in Operation" Warnings.
INSTALLING THE FIREPLACE
Step 1. Construct the Appliance Framing -
Frame appliance enclosure as illustrated in
Figure 8 on Page 7.
Note: The framed depth, 20-1/2" (521 mm)
from a framed wall, must always be measured
from a finished surface. If a wall covering such
as drywall is to be attached to the rear wall,
then the 20-1/2" (521 mm) must be measured
from the drywall surface. It is important that
this dimension be exact.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed.
The header may rest on the top metal spacers,
but must not be notched to fit around them.
Consult all local codes.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Step 2. Route Gas Supply Line - Route gas
line (Figure 9) using techniques and materials
prescribed by local and/or national codes. It is
recommended that a gas line of 1/2" or greater
diameter be used to allow full gas volume to
the fireplace. Undue pressure loss will occur
if the pipe is too small. The appliance, as set
up at the factory, is best suited for use with
a gas line routed from the left side. The gas
line may however be alternately routed from
the right side.
Figure 9
This unit is provided with a gas line/switch wire
outlet at both sides (see Figure 8 on Page 7).
The gas line may be routed through this opening
at either the right or left side. Route the Millivolt
switch wire through the opening opposite form
the gas line. To avoid cutting the Millivolt switch
wire, do not route the switch wire through the
opening with the gas line.
When rigid pipe is used, an ANSI approved
manual shut-off valve and union must be
installed upstream of the fireplace.
Ensure that a sediment trap is installed in
the existing gas line, if not, install a sedi-
ment trap upstream to prevent moisture and
contaminants from passing through trap to
the appliance controls and burners. Failure
to do so could prevent the appliance from
operating reliably.