MISOL 110V Solar Water Heater Controller with 3 Sensors - Compatible with Split Pressurized Solar Water Heaters | Perfect for Residential & Commercial Solar Water Heating Systems

Function Introduction:The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (△T on) 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 (△T off), , 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: 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. technical data Controller dimension: 218mm*165mm*55mm Power Supply: AC100V-240VPower consumption less than 2W Accuracy of temperature measuring +/- 2 cel.d Range of collector temperature measuring -10~220 cel.d Range of tank temperature measuring: 0~110 cel.d Suitable power of pump:3pcs less than 150WSuitable power of electrical heater:1pcs less than 750W1pcs * Pt1000 sensor (less than 500 cel.d )for collector (silicon cable less than 280 cel.d ), 2pcs * NTC10K, B3950 sensor (less than 135 cel.d ) for tank, (PVC cable less than 105 cel.d )Outputs: 3 relays, for circulation pumps or 3-way electromagnetic valve, 1 relay for electrical heaterAmbient temperature -10~50 cel.degree Water proof grade IP40