Lennox ENVY Installation Instructions Manual page 19

LENNOX HEARTH PRODUCTS • SIGNATURE
13. Install the Termination (SV4.5HT-2)—
For the last step, from outside the
exterior wall, slide the collars of the
termination onto the adaptor (the outer
inside the outer and the inner outside
the inner) until the termination seats
against the exterior wall surface to
which it will be attached. Orient the
housing of the termination with the
arrow pointed upwards. Secure the
termination to the exterior wall. The
horizontal termination must not be
recessed into the exterior wall or siding
by more than the 1 1/4 in. (32 mm)
(Figure 24).
NOTE: The vent termination is hot while
in operation and for a period of time
following the use of the fireplace. To
prevent contact with hot surfaces, use
a termination guard (Page 32). This
can be purchased at your local dealer.
Horizontal terminations have been
designed to perform in a wide range of
weather conditions. Our terminations
meet or exceed industry standards.
When selecting the locations of your
f i r e - p a r t s . c o m
horizontal terminations, do not place
the termination where water from
eaves and adjoining rooflines may
create a heavy flow of cascading water
onto the termination cap. If the cap
must be placed where the possibility
of cascading water exists, it is the
responsibility of the builder to direct the
water away from the termination cap by
using gutters or other means.
Carefully follow the installation
instructions for the termination,
including the use of silicone caulking
where required.
SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS
®
Figure 22: Typical Horizontal Vent Installation
Building
Horizontal
Support
Support
Framing
Brackets
90° elbow
Ceiling
Vertical
Rise
Figure 23: Installing Horizontal Termination
7 in.
(178)
12 1/8 in.
(308 mm)
5 1/8 in.
(130 mm)
Adapter
SV4.5RCH
6 to 48 in. Vent Section,
Telescopic vent section,
Elbow or Appliance Collar
Figure 24: Horizontal Termination
*Use silicone caulking to
seal the top and sides of
the termination, up to the
underlayment, stucco, or
masonry wall surface.
Siding
*Caulk
*Caulk
Square Termination
Stucco
DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vertical
Place horizontal support brackets
Firestop/
every 5 ft (1.524 m)
Spacer
u
12 in. straight section
required before a 90°
Support vertical
elbow
venting every
8 ft (2.4 m)
above fireplace
vent outlet
Fireplace
Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It
may also be installed on the
interior side.
10 1/2 in.
(267 mm)
Note: Centerline of Vent Piping is
NOT the Same as the Centerline of
the Frame Opening.
Base of Appliance
Interior Surface of
Finished Wall
Maximum Extent of
Vent Run Sections
Relative to Exterior
Surface of Framing
Last Vent Section. Use
T e l e s c o p i c V e n t
Section (SV4.5LA), If
Necessary
SV4.5HT-2
Shown
Adapter
SV4.5RCH
Exterior
Wall
Horizontal
Termination
Typical
Termination
Shown
3 in.
(76 mm)
1 in.
(25.4 mm)
Maximum wall thickness
9 1/4 in. (235 mm)**
Exterior Surface of Siding
Exterior Surface of
Framing
6 in. to 9 1/4 in.
(152 to 235 mm)**
SV4.5HT-2
Square Termination
Shown
1-1/4 in. Maximum Recess of
the Square Termination into
Exterior Finishing Material
19