Quadra-Fire TOPAZ-MBK-IPI Installation Manual page 26

1. Before cutting any holes, assemble the desired sections
of direct vent pipe to determine the center of the masonry
penetration.
2. Once the center point of the penetration has been
determined, cut a 6 in. (152mm) diameter hole in the
masonry. If the hole is too large, the retro connector
might not mount properly; if the hole is too small, the
appliance might starve for intake air. If there is a frame
wall in front of the masonry wall, cut and frame a 10 in.
(254mm) square opening in the wall (centered around
the 6 in. (152mm) masonry opening). If there is sheet
rock only (no studs) in front of the masonry the 10 in.
(254mm) opening is still needed, but does not need to be
framed. If the hole is framed a wall thimble is required.
This allows the retro connector to mount directly on
the masonry and provide the correct clearances to
combustibles. See Figure 4.23.
Studwall
10 in. x 10 in. (254mm x 254mm)
framed opening in wall
Retro Connector
(Included in Masonry Chimney
Conversion Kit)
(4) Masonry Bolts
(Not Included)
NOTE: For hearth applications, refer to page 29 for the use of a
co-axial to co-linear appliance connector.
Figure 4.23
3. Secure the flashing to the top of the masonry chimney
using a bead of non-hardening sealant-adhesive. If the
flashing is larger than the top of the chimney, cut and fold
flashing as needed to fit chimney. See Figure 4.24.
26 Quadra-Fire • TOPAZ-MBK-IPI, TOPAZ-D-PMH-IPI, TOPAZ-D-MBK-IPI, TOPAZ-D-CSB-IPI Installation Manual • 2341-980_R10 • 11/15
Masonry
Chimney
Wall Thimble Cover
(Included in Masonry
Chimney Conversion Kit)
to fit
Figure 4.24
4. To determine the length of flex needed, measure from
3 in. (76mm) above the top of the flashing down to the
level of the opening. Add the distance from the center
of the chimney out through the wall. Cut a piece of 4
in. (102mm) flex to this length (extended to its nominal
length). Be sure to leave 2-3 in. (51-76mm) of flex above
the existing chimney to allow for connection to the
termination kit.
5. Connect the flex liner to the top adapter using three
sheet metal screws. See Figure 4.19.
6. Feed the flex liner through the flashing into the chimney.
Sealant adhesive
Carefully feed the flex liner down the chimney to the
bottom and out the opening in the masonry wall, forming
an angle to line up the flex liner with the vent opening on
the appliance.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Improper support may allow vent to sag and separate. Use
vent run supports and connect vent sections per installation
instructions. DO NOT allow vent to sag below connection
point to appliance.
7. If additional lengths of flex liner are needed to span the
chimney height, use a flex coupler to connect the pieces
of flex liner together. Connect the flex to the coupler by
using four sheet metal screws for each side. See Figure
4.25.