116
5. Install the side flashing to the unit by inserting the
1
/
4
in. —
14 x
3
/
4
in. screws (provided) into the pre-drilled holes in the
unit frames. The bottom end of the flashing must be flush
with the base rail tab and the upper end of the flashing must
be underneath the roof rail as shown in Fig. 64.
6. Apply seal strips (1.25-in. wide by 0.125-in. thick) to the roof
drain channel as shown in Fig. 65.
7. Remove the roof end cap and rail screws. Attach the drain
channel to the unit by matching the pre-punched 0.31-in.
holes to the existing roof cap-roof rail holes. See Fig. 66.
Fig. 62 —
Installing Seal Strip
SEAL STRIP
1.25 x 0.125
TO BE FLUSH AT
TOP AND TO FLANGE
SIDE FLASHING
ROTATED 90°
SEAL STRIP
1.25 x 0.125
TO BE FLUSH AT
TOP AND TO FLANGE
LEGEND
NOTE: Measurements are shown in inches.
AHU
—
Air-Handling Unit
Fig. 63 —
Detailed View of Seal Strip
SIDE FLASHING
AHU ROOF
AHU
SEAL STRIP
1.25 X 0.125
FLUSH TO FLANGE
SIDE FLASHING
SEAL STRIP
1.25 x 0.125
TO BE FLUSH AT
BOTTOM AND TO FLANGE
a39-4236
SCREW TO AHU
FRAME USING
1/4-IN.–14 x 3/4-IN.
SCREWS
SIDE FLASHING
FLUSH TO
AHU FRAME
SEAL STRIP
1.25” x 0.125”
FLUSH TO FLANGE
LEGEND
AHU
—
Air-Handling Unit
Fig. 64 —
Screw the Side Flashings to Unit
A39-4338
SEAL STRIP
1.25" x 0.125"
APPLY FLUSH
ALL ALONG
FLANGE
SEAL STRIP
1.25" x 0.125"
APPLY FLUSH
ALL ALONG
FLANGE
SEAL STRIP
APPLY FLUSH
ALL ALONG
FLANGE
DRAIN CHANNEL
a39-4530
NOTE: Measurements are shown in inches.
Fig. 65 —
Applying Seal Strip to Roof Drain
Channel
Fig. 66 —
