Friedrich WallMaster WS Series Installation & Operation Manual page 10

920-007-11 (8-05)
Installation requirements
STEP 1 The "WSC" SLEEVE should be positioned so that the DRAIN EXTENSION extends a minimum of 9/16" beyond
the OUTSIDE WALL (See Figure 8).
STEP2
STEP3
The "WSC" SLEEVE must extend a minimum of 7/8" beyond the INSIDE WALL.
The "WSC" SLEEVE must be installed level side to side.
STEP4
The "WSC" SLEEVE must also be installed with a downward tilt toward the outside of the building. Ifa level is
placed so that it rests on the FRONT and BACK UNIT REST as shown in Figure 9, a properly installed unit provides
a 1/2 bubble slope to the outside of the building.
CAUTION: SLEEVE projections and levelingprecautions must be observed to prevent the entry of water into the
room.
Figure 9
Back Unit Rest
Front Unit
Sleeveinstallation
STEP 1 Alter unpacking the "WSC" SLEEVE from the carton, remove the corrugated FRONT PANEL. Place the "WSC"
SLEEVE in the wall opening lbllowiug the instructions given in the INSTALLATION REQUIREMENTS. Attach
the SLEEVE to the INSIDE WALL by driving two #12A x 2" screws in each side of the SLEEVE (see Figure 8).
Shim at the mp of the SLEEVE, midway between the sides. Drive one # 12A x 2" screw in the mp of the sleeve, close
to the shim. Install screws from inside the SLEEVE. If the wall opening is not framed with wood, use expansion
anchor bolts or molly (toggle) bolts (not provided).
STEP2
Once the SLEEVE has been installed, check the LEVEL again to be sum the 1/2 bubble downward tilt is maintained.
Apply shims, if required, m maintain the proper slope.
STEP 3 Caulk the perimeter of the entire opening on the inside and the outside between the SLEEVE and the WALL.
STEP4
The corrugated front panel removed in Step 1 above must be remounted back in place if masonry work is to be done
and/or if the "WallMaster" CHASSIS is to be installed at a later date.
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