Apricus Solar Water Heating System Installation and Operation ...

Apricus Solar Collector Installation & Operation Manual - USA5.4. Flat Roof InstallationThe high angle frame is adjustable and appropriate for installations on flat surfaces and provides adjustmentfrom 27°-57°. The high angle frame kit combines with the standard frame components to form the completeframe assembly. Refer to Appendix 2 for diagram.5.4.1. Frame Feet Anchoringa) Frame feet should be bolted to the installation surface using 5/16” (8 mm) diameter bolts or a similarlysturdy fastening method. If possible stainless steel bolts should be used. Galvanized bolts must have anylon/rubber washer under the head to prevent contact with the stainless steel in order to prevent galvaniccorrosion.b) The surface or concrete block must be strong/heavy enough to withstand load during high winds.Consult a professional structural engineer for design requirements. Refer also to section 3.13 for estimatedwind loading values.5.4.2. Adjusting Frame Anglea) Angle Adjustment: The rear legs of the high angleframe comprise two interlocking pieces (top and bottomleg), which allow the length of the rear leg to beadjusted, thus changing the collector angle frombetween 27° and 57°. If using round feet, the legs canbe moved backward slightly to lower the angle. Therear legs must never be positioned greater than a 90°angle (perpendicular) with the roof surface, meaning thelegs must be behind the position of the manifold, not infront. See diagram to right.b) Rear Legs: Each rear leg has two pieces, a top and a bottom, which allows them to be adjusted. The twopieces must always be joined together by 2 bolts through two sets of holes each in each leg for structuralsupport.c) Lower Angles: If an angle less than 27° is required the legs may be cut short, or contact Apricus for a setof short legs the same as those used on the mini demonstration 4 tube collector frame.d) Higher Angles: If an angle greater than 57° is required, the mounting points of the rear feet may beraised. Raising the angle greatly increases the horizontal force during high winds and may requireadditional structural and/or hardware upgrades. Consult a building engineer for design requirements.See also section 3.13 on wind loading guidelines.5.5. Wall Mounting (Low, Mid or High Angle Frames)5.5.1. Wall Frame OptionsIf mounting on a wall, the high angle frame kit may be usedwith the legs reversed so that they attach to the bottom ofthe standard frame channels rather than the top. The legsshould be position perpendicular to the wall and adjusted asneed in the same manner as described above.5.5.2. Attachment Methodsa) Brick & Concrete: The method used for attachment tothe wall will depend on the wall material. For brick orconcrete walls, the round feet can be secured with stainlesssteel expansion bolts.b) Boarding: For wood or synthetic boarding, stainless steellag screws of at least 5/16” diameter or greater with highsheer strength that can penetrate into the wall framework arenecessary.Copyright 2011 – Apricus Inc Doc: A7-05.4.1.4-PB-1.9 Page 47 of 126