Page 11
Vista 42 Indoor Gas Fireplace
rev. 110201
1
12”
2”
12”
12”
Installation
Section 3-3:
INSTALLING A WALL MOUNTED DIRECT VENT
TERMINATION
This section applies to installations where the direct vent termination will be
wall-mounted.
1). Installation of termination with built in frame
A Termination with a Built-In Frame is installed during framing of a structure.
1. Frame the termination opening to 11" x 11".
2. Install exterior sheathing to the structure framing.
3. Fasten the termination to the sheathing using a minimum of 4 screws.
MSR Frame
PTO-4 (5"/8")
Termination
PTO-4F (5"/8")
Termination
Figure 13.
Installing a PTO-F termination.
Figure 13a.
Installing a PTO termination with the MSR frame.
Figure 14.
Installing the VSS Vinyl Shield.
5). Installation of a termination shield for vinyl siding
The VSS Termination shield
is installed when the exterior of a structure is clad with
Vinyl siding. It is placed directly above, and on-center with the termination.
2). Installation of termination frame at time of framing
Terminations with a MSR frame allow the installation of the frame prior to installation
of the termination.
1. Frame the termination opening to 12" x 12".
2. Secure the MSR Frame to the exterior sheathing of the structure.
3. Fasten the termination to the MSR Frame using a minimum of 4 screws.
Figure 13c.
Installing a PTO termination with the BSR frame.
3). Installation of termination frame at time of framing in Masonry
Terminations with a BSR frame allow the installation of the frame in masonry prior
to the installation of the termination
1. Frame the BSR opening to 12" x 12".
2. Secure the BSR Frame to the exterior sheathing of the structure.
3. Fasten the termination to the BSR Frame using a minimum of 4 screws.
1. Frame the MOSR opening to 12" x 12".
2. Fasten the MOSR frame to the interior side of the studs, concrete, or finished
wall construction using a minimum of 4 screws.
3. Insert the termination into the MOSR frame as shown here, (
from the inside
) and
attach to the MOSR by installing a min. quantity of 4 bolts into the threaded
nuts on the MOSR Frame.
4). Installation of termination from inside structure
A Termination with a MOSR Frame is installed from the inside of the structure. These
are commonly used in high-rise construction.
MOSR Frame
PTO-4 (5"/8")
Termination
Figure 13b.
Installing a PTO termination with the MOSR frame.
BSR Frame
PTKOG
(5"/8")
Installing heat guards over terminations
is recommended in installations
where the termination is located within 7' feet above grade, or above a pedestrian
walkway, and may be required by code in public areas.
1. Ensure that the two
long
mounting brackets are facing the bottom of the
termination. (See inset). This will provide more heat protection at the top of
the termination, where temperatures are highest.
2. Attach to the faceplate of the termination using four sheet metal screws.
Figure 13c.
Installing a PTO termination heat guard.
11”
11”
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
PTO-4 (5"/8")
Termination
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
12”
12”
Fastening Hardware,
minimum 4-screws
Framing, con-
crete or other
materials
Exterior Sheath-
ing, concrete or
other materials
Exterior Vinyl
siding
PTO-4 (5"/8")
Termination
VSS Vinyl shield