... , providing accurate parameter. temperature feeler/Solar Water Heater Controller System is used to detect the ... selection available ) 8,Electromagnetic valve parameter: DC 12V, AC 220V, pressurized valve and un-pressurized valve ... 3, Water level display 4, Auto mode 5, Water level pre-setup 6, Manual water ... Increasing Water pressure during water is loaded. 12,Manual heating 13,Timing heating 14,Hot ...