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1 collector array – 1 storage tank – 1 pump and auxiliary heating Description: The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (Delta Ton) between the collector array (T1) and the storage tank (T2) is reached. If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (Delta Toff), or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump ( R1) is switched off. Back-up heating by auxiliary boiler (detailed see paragraph 4.3): Within the preset time section of back-up heating, if the temperature T3 is below the switch-on temperature, then the circulation pump ( H1) of back-up heating is triggered, when T3 is heated to the switch-off temperature, circulation pump H1 of back-up heating is ceased.
Main technical data of Solar controller for pressure solar water heater system:
1.Main menu DT O & DT F Temperature difference function2.Main menu-THET timing heating3.TEMP Temperature main menu4.EM Emergency collector temperature(emergency switch-off temperature of collector)5.CMX Maximum limited collector temperature (collector cooling function)6.CMN low temperature protection of collector7.CFR frost protection of collector8.SMX Maximum temperature of tank9.REC Tank re-cooling function10.Celsius and Fahrenheit temperature transferring11.FUN Auxiliary function12.DVWG Anti-Legionella function13.CIRC Temperature controlled hot water circulation pump14.nMIN Solar circulation pump speed adjusting (RPM speed controlling)(Only available on SR530C8Q)15.OHQM Thermal energy measuring (Only available on SR530C8Q)16.INTV Pump interval function (Only available on SR530C8Q)17.BYPR High temperature by-pass function(tank temperature automatically adjusting)18. HND Manual mode19.PASS Password setting20.LOAD Recovery to factory setting21.ON/OFF button22.Holiday function23.Manual heating24.Temperature query function25.Memory Protection26.Anti-dry heating Protection27.Screen protection
Solar controller for pressure solar water heater system