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Introduction The installation of this solar collector should only be performed by personnel qualified in plumbing and roofing. The installation should comply with local building codes, permits and OSHA requirements. The collector installation can be retrofitted to existing buildings or integrated into new construction projects. Theory of Operation A solar collector is simply a heat exchanger designed to convert the sun's radiant light energy into thermal energy to be stored for later use.
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Basic Mounting Procedures The solar collector(s) should be mounted in the vertical orientation on the roof (Figure 2). Freeze protection is strongly recommended; therefore, the collector should always be mounted in a vertical orientation. It is still important to slope the collector just slightly to allow for complete drainage during off mode. The required slope is at least 1/4"...
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Figure 5 - Threaded Rod The collector must be raised from the roof surface to allow for rainwater and debris to pass under the collector and for proper ventilation of the roofing material. There should be at least 1 1/2" of clearance between the roof surface and the underside of the solar collector.
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50:50 vinegar/water or 1/8:1 - trisodium phosphate/water solution is recommended to remove solder flux and other impurities from the fluid passageways. Circulate for 15 mins, drain, rinse, recharge with desired HTF. Collectors are designed to be installed in the vertical position (Figure 6). All vertical piping between the storage tank and the collector shall be supported at each story or at maximum intervals of ten (10) feet.
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Figure 7 Collector Loop Pipe Insulation The collector loop cold supply and hot return lines must be well insulated with a high quality flexible closed cell insulation to minimize heat loss. The wall thickness of the pipe insulation should not be less than 3/4". A 1" wall thickness is required in all areas prone to annual hard freeze conditions.
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The sensor "bundle" must be placed under the rubber pipe insulation covering the collector header. Thoroughly wrap and weatherize the insulation with electrician's tape or insulation tape as provided by the manufacturer (Rubatex Insul- Tape or equal). See Figure 8 for collector sensor installation detail. Figure 8 Low Voltage Wiring Low voltage wiring is used to connect the collector sensor to the controller and should be a minimum 18 AWG.
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Specifications Collector Frame and Battens: Type 6063-T6 extruded aluminum frame and battens with architectural bronze powder-coat finish. Backsheet: Type 3105-H14, 0.019” stucco embossed aluminum sheet (bronze) pop-riveted to aluminum frame. Corner Brackets: Architechtural aluminum angles inside with aircraft-grade pin grip rivets to insure high stability.
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