Manual 2100-319F
Page
6 of 10
The sleeve is then reinserted into the prepared opening
from the outside of the building. All of the mounting
flanges must contact the exterior wall. Check to see
that there is enough sealant to make this joint
watertight. Additional sealant must be applied as
necessary. The sleeve must be centered in the opening,
and the bottom of the sleeve must be checked to make
certain that it is level from side to side. The bottom
flange should be secured to the wall by using two
screws through the holes in the bottom mounting flange
of the sleeve. The sleeve must be checked to make sure
that it is square in the opening. Once the sleeve is
square, the side and top mounting flanges of the sleeve
must be secured to the wall with screws through the
holes in the flanges. The gaps between the side flanges,
and the top and bottom flanges must be filled with
additional sealant.
On the inside of the building, the gaps between the
sleeve and the opening must be filled with insulation.
This will help insulate the sleeve and prevent any
unwanted outdoor air. See Figure 5.
If the QT
EC
unit will be drained through the wall, the
drain line must be installed through the wall.
Information for the drain installation is contained in the
QT
EC
Installation Instructions.
FIGURE 4
MASONRY CONSTRUCTION INSTALLATION
INSTALLATION – MASONRY
CONSTRUCTION WALLS
For masonry construction walls, the dimensions for the
opening will be 48-1/4 inches tall by 43-1/4 inches wide.
These dimensions are plus or minus 1/4 inch and are
measured from the finished floor height. See Figure 4.
These will be the finish dimensions of the opening.
A 1-1/2 inch spacer needs to be installed in the bottom
of the opening to raise the sleeve off the floor. Masonry
blocks 1 inch thick, minimum of 6 inches wide, with 1/2
inch mortar between the block and floor will provide the
required spacing. These blocks are to be laid flush with
the outside wall, and must provide a water tight seal to
the floor and to the opening sides. See Figure 2.
The sleeve should be test fit in the opening before final
preparations are made. The sleeve will be installed into
the opening from the outside of the building in. The
sleeve must be centered in the opening from side to side.
The mounting flanges of the sleeve must contact the
outside wall all around the opening. The side and top
mounting flanges must have the mounting holes drilled
into the outside wall for the concrete anchors which will
hold the sleeve in the wall. The holes should be drilled
through the holes in the sleeve with the sleeve level and
