Fireplace/Framing Specifications - Lennox Meris Series MLDVT-30NM Installation Instructions Manual

LENNOX HEARTH PRODUCTS • MERIT
FIREPLACE AND FRAMING SPECIFICATIONS
Framing
Framing Dimensions
Model No. A
in. 30-1/4
MLDVT-30
mm 768
in. 35-1/4
MLDVT-35
mm 895
in. 40-1/4
MLDVT-40
mm 1022
in. 45-1/4
MLDVT-45
mm 1149
Natural Gas
Model
AFUE
MLDVT-30 57
MLDVT-35 57.5
MLDVT-40 62
MLDVT-45 63
Vent Size
Coaxial DV 4-1/2" Inner
Vent Size 7-1/2" Outer
Notes
Diagrams, illustrations and photo-
graphs are not to scale – consult
installation instructions. Product
designs, materials, dimensions,
specifications, colors and prices are
subject to change or discontinuance
without notice.
K
L
1/2
(13)
Top View
M d o
MLDVT-30
MLDVT-35
MLDVT-40
MLDVT-45
Figure 13
10
SERIES DIRECT-VENT GAS FIREPLACES • MODELS MLDVT-30/35/40/45 • INSTALLATION INSTRUCTIONS
®
B C D
35-1/4 39-1/4 16
895 997 406
35-1/4 39-1/4 16
895 997 406
40-1/4 44-1/4 16
1022 1124 406
40-1/4 44-1/4 16
1022 1124 406
Efficiencies (%)
Propane
EnerGuide (P4) AFUE EnerGuide (P4)
55.6 58 56.1
55.6 59.0 58.1
61 62.3 59.5
60 64 62
Input (BTU/HR) - MV & Electronic
Natural & Propane Gas
Models Input Rate (BTU / HR)
MLDVT-30N 13,500
MLDVT-30P 12,500
MLDVT-35N 16,000
MLDVT-35P 15,000
MLDVT-40N 20,000
MLDVT-40P 20,000
MLDVT-45N 23,000
MLDVT-45P 22,000
*CONCENTRIC FLUE
E
FLUE - 4-1/2 (114)
COMBUSTION AIR
- 7-1/2 (190)
9-1/4 (235)
l e N . o E F
. n i 32-1/4
28-1/8
m m 819 715
. n i 32-1/4 28-1/8
819
m m 715
33-1/8
. n i 37-1/4
m m 946 841
37-1/4
. n i 33-1/8
m m
946 841
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vent Framing - Top Vent
With One 90° Elbow
B
1/2
Inches (millimeters)
Vertical Venting Through the Ceiling:
Frame ceiling opening - Use a plumb line from the ceiling above the appliance to
locate center of the vertical run. Cut and/or frame an opening, 10-1/2" x 10-1/2" (267
mm x 267 mm) inside dimensions, about this center mark (see Figure 18).
J
G
H
M
Front View
J K
G H
23-1/4 27
30-1/4 20
587 686 768 508
32 35-1/4 25
23-1/4
587 813 892 635
28-1/4 37
40-1/4 30
714 940 1019 762
28-1/4 42 45-1/4 35
714 1067 1149 889
10-1/2
(
267
5-1/8
(130)
C
D
A
A
Dimension D is the required framing depth when the
finish material (drywall) thickness is 1/2 in. (13mm)
NOTE: It is recommended that the gas be stubbed in from the left
side only.
NOTE - Eyebrow
ELECTRICAL INLET hood shown.
KNOCKOUT - 2-3/4 X 2
(70 X 51) COVER PLATE
(With KNOCKOUT -
Right Side Only)
GAS INLET
KNOCKOUT
(Other Side)
OPTIONAL
F
ELECTRICAL
INLET KNOCKOUT,
REQUIRING A FIELD
PROVIDED
JUNCTION BOX
(Either Side)
Right Side View
3 (76)
L M
10
28
354 711
30" Model
12-1/2 33
35" Model
317 838
15 38
40" Model
381 965
45" Model
17-1/2 43
1092
445
Framing should be
constructed of 2x4 or
larger lumber.
)
7
(178)
12-1/8
(308)
16 (406)
5-7/8
(149)
9-1/2
(241)
1-5/8 (42)
3 (76)
Viewable Glass Size
24-1/4" Wide
20-1/4" High
29-1/4" Wide
20-1/4" High
34-1/4" Wide
25-1/4" High
39-1/4" Wide
25-1/4" High