Lennox Hearth B-Vent Elite LBV-3824MP-H - Manual (Page 5)

5
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
FRAMING SPECIFICATIONS
Figure 4
Figure 5
Figure 6
Framing Dimensions
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 termina-
tion.
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 rockwool.
9. Checkout appliance operation.
10. Adjust burner to ensure proper flame ap-
pearance.
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, ply-
wood, particle board or other hard surfaces. Be
sure fireplace rests on a solid continuous floor
or platform with appropriate framing for sup-
port 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.
Note: All framing dimensions calcu-
lated for 1/2" dry wall at the appliance
face. If sheathing the chase or finish-
ing with other thickness materials, cal-
culations will need to be made.
Figure 7
Header
B
A
Fireplace Framing
FOAK
Combustion
Air Kit
A
Outside Chase
G
C
J
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough Framing Face
(Unfinished Shown)
Optional Locations
FATO Adapter
(Optional)
Corner Installation
K
D
C
A
E
G
F
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough
Framing Face
(Unfinished Shown)
FOAK-4
Combustion
Air Kit
Fireplace Opening Width
48 ¹⁄₈"
(1222 mm)
A
B
C
D
E
52 ⁷⁄₈"
(1343 mm)
50"
(1270 mm)
50"
(1270 mm)
26 ¹⁄₄"
(667 mm)
31"
(787 mm)
13 ¹⁄₈"
(334 mm)
15 ¹⁄₂"
(394 mm)
77 ¹⁄₄"
(1962 mm)
82"
(2083 mm)
3824 4324
38 ⁵⁄₈"
(981 mm)
F
G
H
J
K
41"
(1041 mm)
25 ⁵⁄₈"
(650 mm)
25 ⁵⁄₈"
(650 mm)
4"
(102 mm)
4"
(102 mm)
11"
(279 mm)
11"
(279 mm)
54 ⁵⁄₈"
(1388 mm)
58"
(1473 mm)
C
A
G
Inside Chase
H H
Back Wall of Chase/Enclosure
Including Finising Materials
if any
Rough
Framing Face
(Unfinished Shown)
FOAK
Combustion
Air Kit