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SWIMMING POOL SOLAR HEATING SYSTEM
INSTALLATION MANUAL

7) Proceed to the lower chalk line previously snapped on the roof for the hold-down strap brackets. Mark a hole 2” (5cm) to the side of the first collector and continue marking holes on the chalkline centered exactly between the absorber surfaces until you reach the last collector. Mark the last hole the same 2” (5cm) to the side of the last collector. Drill a pilot hole and apply sealant at each of these locations. Bolt the hold-down strap brackets on the roof. Refer to Figure 6. It is OK to step on the collectors as long as you stay one foot away from the top and bottom headers. Mark the holes for the bottom holddown strap by measuring up 16” (40cm)from the outside of the bottom header and again centering them between the absorbers and 2” (5cm) away from the first and last collector.

Slip one end of a hold-down strap through the slot in the hold-down strap bracket at the end of the row, then through the strap clamp and out through the other slot in the holddown bracket. Pull about 3” (7-8cm) of the strap through and bend it back toward the clamp. Refer to Figure 7. Slip the loose end of the strap through the strap clamp and pull it tight. Clamp screw (A) should be tightened securely, but not over-tightened to the point where the clamp is distorted. Refer to Figure 8. Bring the remaining strap end across the collector face, passing through both slots in the bracket located on the other side of the collectors. Pull the straps taut against the face of the collector.   Repeat this procedure for the remaining holddown straps. Refer to Figure 9

8) Install the vacuum relief valve in the outlet header of each row. This will be located at the opposite end of the row that is connected to the collector outlet pipe. Refer to figure 2, 11, and 12.   9) Install an end cap in the inlet header of each row, opposite the end that is connected to the collector inlet pipe. Refer to Figures 2, 11, and 12.   10) INSPECT THE INSTALLATION AND CHECK ALL CLAMPS FOR PROPER POSITION AND TIGHTNESS.   11) FOR HURRICANE AREAS, refer to the HURRICANE COLLECTOR HOLD-DOWN Procedure   Installation Over Roof Vent Pipes  Collectors can be installed over or around different diameter roof vent pipes or other obstructions up to 2” (63mm) in diameter. After snapping the top chalk lines but before marking and pre-drilling for your outlet header brackets, locate the seam in the collector nearest to where the vent pipe is to come through. Separate by pulling up on top plate, and pushing down on the lower plate. Should the vent pipe protrude near a sonic tack weld, it will have to be cut apart. Using a sharp utility knife, cut through the weld while pulling the two plates apart. Lay the collector over the vent pipe, keeping the vent pipe at least 12” (30.5cm) away from a header. It will be easier to complete an installation by mounting this collector first and then working away from it. With a roof vent pipe of 3” (8cm) in diameter, the collectors can be positioned on either side of the vent. Two system connector hoses can be employed to couple the collectors together for vent pipes or other obstacles up to 7” (17cm) in diameter. Mark your 51” (1.3m) centers wherever the outlet header brackets ‘fall’ on the upper chalk line. With obstructions of over 7” (17cm), such as attic fans and skylights, lay out the collectors on either side of the obstruction using a Row Spacer Kit.