Lennox MPDP35IN Installation Instructions

15
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
DIRECT VENT GAS FIREPLACES (MPDP35/40) • INSTALLATION INSTRUCTIONS
Note: Convert inches into metric equivalent
measurement, as follows:
Millimeters (mm) = Inches x 25.4
Centimeters (cm) = Inches x 2.54
Meters (M) = Inches x .0254
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SV4.5FA or
SV4.5FB Flashing
AND SV4.5SC
Storm Collar
SV4.5VF
Firestop/Spacer*
1 in (25.4 mm)
Minimum
Clearance to
Combustibles
SV4.5CGV-1
Termination
SV4.5L6/12/24/36/48
Vent Sections
*When using Secure Flex,
use Firestop/Spacer
SF4.5VF.
Max. 40 ft
(12.2 m)
Effective Vent Length
Model Effective Length
SV4.5L6 4-1/2"
SV4.5L12 10-1/2"
SV4.5L24 22-1/2"
SV4.5L36 34-1/2"
SV4.5L48 46-1/2"
Table 7
Figure 26
VERTICAL TERMINATION SYSTEMS (ROOF)
See Figure 26 and Figures 34 through 38 on
Pages 18 and 19 and their associated Verti-
cal Vent Tables, which illustrate the various ver-
tical venting configurations that are possible for
use with these appliances. Secure Vent
®
pipe
applications are shown in these figures. Secure
Flex
®
pipe may also be used. A Vertical Vent
Table summarizes each system’s minimum and
maximum vertical and horizontal length values
that can be used to design and install the vent
components in a variety of applications.
Both these vertical vent systems terminate
through the roof. The minimum vent height
above the roof and/or adjacent walls is speci-
fied in ANSI Z223.1-(latest edition) (In Canada,
the current CAN/CSA-B149.1 installation code)
by major building codes. Always consult your
local codes for specific requirements. A general
guide to follow is the Gas Vent Rule (refer to
Figure 4 on Page 6).
Vertical (Straight) Installation (Figure 26)
Determine the number of straight vent sections
required. 4-1/2" (114 mm), 10-1/2" (267 mm),
22-1/2" (572 mm), 34-1/2" (876 mm) and
46-1/2" (1181 mm) net section lengths are
available (see tables on this page and Pages
36 and 37 - Vent Components). Plan the vent
lengths so that a joint does not occur at the
intersection of ceiling or roof joists. Refer to
the Vent Section Length Chart.

Lennox MPDP35IN Specifications

General

Brand	Lennox
Model	MPDP35IN
Category	Indoor Fireplace
Language	English