Automatic Water Pump Pressure Controller Electric Electronic Switch Control Unit 100% Brand New and High Quality Maintains pressure and flow. Easy to operate with simple push button controls. Led lights indicate the functioning of the pump.Automatically stops if no water is in the pump. No pressure tank required.Automatic control for water pump. Warning Never take the electronic board out of the control box. The wiring diagram inside the terminal block will show you how to make correct connection. Wrong connection will destroy the whole electronic circuit. Cable used for connection must be a three-wired one with compulsory grounding end. It shall have the outer diameter at 7.5mm min and 8.5mm max. One of the leading end of the cable must be lower than the position of the fixing screws while the cable being connected to the power as shown in the Fig. The four screws on the panel board and the two nuts for fixing cable must be well fastened to advoid water entering into the control box and damaging the electronic circuit.
