Apricus Solar Water Heating System Installation and Operation ...

()('++++++++++++(.()('+*(.+*/)+*/1+**+* +*, -+*+*, +*+*, - ++*+*+0++*+* +0! "#$%&'GRUNDFOSGRUNDFOST180 C / 360 FP = 10b ar/ 150p siApricus Solar Collector Installation & Operation Manual - USA9. Pump Station AccessoriesThe closed loop (CL) or direct flow (DF) pump stations can also be fitted with optional accessories to addfunctionality to the system. These items are purchased separately, but connect with ease to the pump station.9.1. Digital Flow Meter Kit (CL & DF)a) The digital flow meter provides flow ratereadings to the controller to allow precise Btuvalues to be measured. If the variable speedpump control is being used, a nominal flowrate will not provide accurate Btu values.b) The flow meter is connected into the quickconnect fitting above the pump station on theSupply (Flow, left) side. The signal wire fromthe flow meter connects to GDS1 on thecontroller.9.2. Heat Dump Valve kit (CL & DF)Digital FlowMeter KitHeat DumpValve Kita) If the system design incorporates a heatdissipation loop or a secondary use for excessheat, such as a swimming pool, the heat dumpvalve kit (3-way solenoid) can be installed.b) 3-way valve operation is regulated by thecontroller via the Cooling function, see section6.6 for more details.HeatDissipationLoop9.3. Brazed Plate Heat Exchanger Kits (CL)The brazed plate heat exchanger kits can beused in closed loop systems to heat anysuitable storage tank, instead of using aninternal tank coil heat exchanger. Two unitsare available: a 10-plate, single wall heatCirculationexchanger, suitable use with GRAS heatThroughtransfer fluids and a 12-plate dual wall heatCoil in Tankexchanger suitable for other non-toxic heattransfer fluids. Both can handle up to a 90 tube collector installation.A Grundfos UP 15-29 SF single-speed circulation pump is included as part of both kits.Brazed Plate HeatExchanger KitDirect Circulationwith TankCopyright 2011 – Apricus Inc Doc: A7-05.4.1.4-PB-1.9 Page 79 of 126