NANAWALL WD66 OWNER’S MANUAL
9
Make sure that the frame is level, plumb and square at
all points. There should be no unevenness or bowing.
If, for any reason, the floor is not level, shim with plastic
horseshoe shims to the highest point of the floor,
provided there is still enough clearance at the top. Place
plastic, horseshoe type shims tightly at every fixing point
between the frame profile and rough opening.
Use hard
plastic horseshoe shims only.
Step A9
For the top-hung WD66/o and for the floor supported
WD66/u anchor the sill to the subfloor.
The sill has to be installed in correct relation to the finish
floor. Make sure that the sill is not tilted or twisted. Make
sure that all holes drilled through the sill are properly
sealed with silicone underneath and around the screws.
All weep holes in the sill are not to be obstructed.
Make any necessary adjustments to level, plumb, and
square before proceeding on.
to the opening to withstand necessary structural loading.
Generally, for wood frame use #14 (1/4
"
diameter) wood
screws with 2-1/2
"
minimum embedment, for concrete with
a minimum compressive strength of 3,200 psi use 3/16
"
diameter ITW Tapcons (concrete screws) with 1-1/4
"
min.
embedment. For masonry use 1/4
"
diameter
ITW Tapcons
(masonry screws) with 1-1/4
"
embedment.
Standard
installation into light gage steel substrates with
a
minimum of 18 gage (0.0451
"
thick) should have 1/4
"
diameter type 410 stainless steel self drilling screws. Into
structural steel substrates thicker than 1/4
"
should be
pre
drilled and 1/4
"
diameter SAE Grade 2 bolts can be
used.
Another option is to use type 410 stainless steel self
drilling screws. For this option first drill small pilot holes.
Make sure that the screw head with washer (if any) is
small enough to fit inside the slot in the middle of the
head jamb and sill; otherwise, it will interfere with the
rolling of the running carriages.
Anchor through the center of the groove but make
sure the screw or bolt head with washer bears on the
aluminum. To maintain the thermal break, use PVC or
nylon washers so that the screw heads do not bridge the
aluminum.
DIAGRAM 3:
SUGGESTED FRAME FASTENING POINTS
A = About 4
"
from the interior edge.
B = Distance about 16
"
, except at the stacking area on
one or both sides where spacing should be about 4
"
.
Plus extra screws at meeting point of panels.
C = Distance about 14
"
from the bottom using extra
screw at top.
See Appendix B for Florida installations.
