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Manual 2100-319F
Page 4 of 10
SHIPPING DAMAGE
Upon receipt of equipment, the carton should be checked
for external signs of shipping damage. If damage is
found, the receiving party must contact the last carrier
immediately, preferably in writing requesting inspection
by the carrier’s agent.
GENERAL
The QWS48A series is designed for use with the QT
EC
Series Air Conditioners and Air Source Heat Pumps.
The QWS48A is for use with wall thickness of 5 to 14
inches. One QWS48A series wall sleeve is required for
each QT
EC
Model to be installed.
The equipment covered in this manual is to be installed
by trained service and installation technicians.
These instructions explain the recommended method to
install the wall sleeve.
These instructions and any instructions packaged with
any separate equipment required to make the entire air
conditioning system should be carefully read before
beginning the installation.
While these instructions are intended as a general
recommended guide, they do not supersede any national
and/or local codes in any way. Authorities having
jurisdiction should be consulted before the installation is
made.
INSTALLATION – WOOD FRAMED
WALLS
For wood frame construction walls, the dimensions of
the opening must be 48 inches tall by 43 inches wide. A
2 x 6 header will be required for the opening. The sides
of the opening must have trimmer studs to support the
header, and to provide a structural member on which to
fasten the sleeve. (See Figure 1.) All of the dimensions
are referenced from the finished floor height.
After the opening is framed in, a treated 2 x 6 bottom
support and seal plate must be cut to fit in the bottom of
the opening. Construction adhesive should be applied to
the 2 x 6 before it is put in place. (See Figure 2.) This
will help hold the plate in place and provide an
additional seal for the bottom of the opening. The
treated 2 x 6 must be fastened to the bottom of the
opening flush to the finished surface of the outside wall.
The 2 x 6 must be sealed to the outside wall with
construction adhesive. Any gaps between the sides of
the 2 x 6 plate and the opening must also be sealed. See
Figure 2. NOTE: The actual thickness of 2 x 6 must be
1-1/2".
Once the opening is framed, the sheeting can be
installed, the sheeting material must not extend into the
opening.
The sleeve should be test fit into the opening to make
sure of the dimensions. The sleeve must be inserted into
the opening from the outside of the building. The
bottom of the sleeve must be level from side to side, and
the sleeve must be square in the opening. A slope is
built into the bottom of the sleeve from the inside to the
outside. This will allow any water that gets into the
sleeve to drain out. Once the test fit is completed, the
sleeve must be removed from the opening, and two 1/4
inch beads of sealant must be applied to the mounting
flanges of the sleeve. (See Figure 3.)
FIGURE 1
WOOD FRAMED INSTALLATION