1. Auto-fill-water mode
Connect the controller's blue line to electric pump, black line is connected to zero-line, brown line can not be connected and should be insulated.
2. Auto-drainage and lack-water
Connect the controller's brown line to electric pump, the black line is connected to the zero-line, the blue line can not be connected and should be insulated.
3. Fill-water and drainage auto-switch mode
The chart is fill-water and drainage auto-switch mode. This electric connection chart synthesize by automatic fill-water and auto-drainage.
