solar controller for split solar water heating system both 220/110v available Temperature query function Memory protection  solar water heater controller, solar controller for split solar water heating system SR728C   Main technical dataTechnical data· Appearance of controller: see product itself ( dimension: 191mm x140mm x40mm)· Power supply:AC230V ±10% · Power consumption:< 3W · Accuracy of temperature measuring: ± 2oC· Range of collector temperature measuring: -10 ~200 oC· Range of tank temperature measuring:0 ~100 oC· Suitable power of pump: 5 pumps possible to be connected, power of each pump ≤ 600W . · Inputs: 6 sensors, · 2 piece Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),· 4 pieces NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤105oC), · Output:5 pums(or three way electromagnetic valve)· Ambient temperature :-10oC ~ 50oC. · Water proof grade:IP40. Main functions1 Access main menu2 Access submenu3 Main menu THET Timing heating4 DT Temperature difference adjusting function5 TEMP Temperature main menu6 EM Emergency collector temperature (emergency switch-off temperature of collector)7 CMX Maximum limited collector temperature (collector cooling function)8 CNN Low temperature protection of collector9 CFR Frost protection of collector10 REC Tank re-cooling function11 SMX1 Maximum temperature of tank 112 SMX2 Maximum temperature of tank 213 MAX1 Maximum turnoff temperature (for solid fuel boiler, return heating, heat transferring between tanks)14 MIN1 Minimum turn-on temperature (for solid fuel boiler, return heating, heating transferring between tanks)15 FUN Auxiliary function16 DVWG Anti-Legionella function17 CIRC Temperature controlled hot water circulation pump18 nMIN Circuit pump speed adjusting (RPM speed controlling)19 DTS Standard temperature difference (for circuit pump speed adjusting)20 RIS Increased rate (for circuit pump speed adjusting)21 OHQM thermal energy measuring22 FMAX Flow rate23 MEDT Type of heat transfer liquid24 MED% Concentration of antifreeze25 PRIO Priority logic of tank26 TRUN Heating loading- time27 TSTP Heating interval- time28 BYPR High temperature by-pass function (tank temperature automatically adjusting)29 HND Manual mode30 PASS Password setting31 RSET Recovery factory setting32 ON/OFF button33 Holiday function34 Manual heating35 Temperature query function36 Memory protection37 Anti-dry heating protection38 Screen protection  

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