Assembly Steps - Lennox Crestline LSBV-3628MN Installation Instructions Manual

LENNOX CRESTLINE™ SERIES B-VENT GAS FIREPLACES • 36"/42" LSBV MODELS • INSTALLATION INSTRUCTIONS

ASSEMBLy STEPS

The typical sequence of installation follows,
however, each installation is unique resulting
in variations to those described.
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.
PRE-INSTALLATION NOTES
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, surrounds 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.
6
4. Use this information and consult your local
building code to determine if you need ad-
ditional 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.
INSTALLING THE FIREPLACE
Step 1. Construct the Appliance Framing -
Frame appliance enclosure as illustrated in
Figures 4 through 7 on page 5.
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.
Step 2. Route Gas Supply Line - Route gas
line (Figure 8 ) 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.
This unit is provided with a gas line/switch wire
outlet at both sides (see Figure 2 ). 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.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
An external regulator must be used on all pro-
pane (L.P.G.) heaters to reduce the supply tank
pressure to 13" w.c. (maximum). Any copper
tubing used to supply propane (L.P.G.) from
the tank must be internally tinned.
IMPORTANT: HOLd GAS VALVE SECURELy TO
PREVENT MOVEMENT WHEN CONNECTING TO
INLET GAS LINE
WARNING: CONNECTING dIRECTLy TO
AN UNREGULATEd PROPANE (L.P.G.)
TANK MAy CAUSE AN ExPLOSION.
All appliances are equipped with a gas flex line
and shutoff valve attached directly to the gas
control valve. To quickly and easily complete
the gas line routing, use the gas flex line kit.
Figure 8
Step 3. Position the Appliance - Slide the
fireplace into prepared framing or position
fireplace in its final position and frame later.
Refer to fireplace drawings and specifications
on pages 4 and 5 for framing dimensions and
details. Framing header may be positioned
directly on the fireplace top spacers.
IMPORTANT: UNdER NO CIRCUMSTANCES
CAN THE FIREPLACE TOP SPACERS (refer
to FIgurE 2 ) BE REMOVEd OR MOdIFIEd,
NOR MAy yOU NOTCH THE HEAdER TO FIT
AROUNd OR BE INSTALLEd LOWER THAN THE
SPACERS. THE HEAdER MAy BE IN dIRECT
CONTACT WITH THE TOP SPACERS BUT MAy
NOT BE SUPPORTEd By THEM.