toward the inlet approximately one (1) inch for each
size (6) collectors in the row.
Drill a hole for the first outlet header bracket on the
first roof mark. Use a 1/8” (3mm) drill for ¼” (6mm)
diameter screws. Measure 51” further along the chalk
line, mark, and drill a second hold. Then continue
drilling pilot holes all along the chalk line for the total
number of collectors which you are using for the job.
3. Inject a generous amount of silicone or equivalent
high quality sealer into each hole and onto the
surrounding roof surface. Bolt all the outlet header
hold down brackets to the roof as shown in Figure 7.
4. Locate the strap hold-down bracket holes using the
information in the Table of Figure 5.
For example, for 4 x 10 ft. collectors the top strap is
32 inches below the header, or 32 + 5 = 37 inches
below the chalk line of the outlet header hold-down
bracket. The center strap is 36 inches below the top
strap, and the bottom strap is again 36 inches below
the center strap, or 16 inches above the inlet header.
Snap chalk lines parallel to the outlet header hold-
down bracket line. Do not install the hold-down
brackets until the collectors are in place.
5. bring the first collector to the roof and slip the
proper hoses over both end of the inlet and outlet
headers on the last return collector. The long hoses go
on the outlet of the last collector and the inlet of the
first collector. Push UP TO the hose locating
shoulder, but NOT OVER it. Locat a hose clamp 3/8”
(10mm) from the end of the hose in order to center it
on the header grooves. This clamp must face up so as
to be accessible for tightening and will not rub against
the mounting surface. Make sure you securely tighten
each clamp with a nut driver. If a nut driver is not
available, a ‘hex’ wrench or screwdriver will suffice.
THE HOSE CLAMPS MUST BE LOCATED OVER
THE GROOVES IN THE HEADER. Refer also to
Figure 5a.
6. Position the collectors on the roof so that center of
the outlet header connection hoses are beneath the
secured outlet header hold-down bracket. Using the
30 inch length of strap provided, loop the strap around
the connection hose, pull both strap ends through the
slots of the bracket and secure the strap in the bracket
by tying the loose ends into a knot as shown in Figure
8.
Continue to install all collectors in the row, coupling
them side by side, referring again to Figures 4 and 8.
