DF-96D Automatic Water Level Switch for 220V Liquid Tank Pump

No water protection: Water level control points C and D. When the water level falls below this point, probe C or D is out of range of the water, and the controller can automatically stop the pump. E and C are short-connected; A and B are disconnected. Installation instructions for the upper and lower pool: A is the upper water level control point in the pool. When the water level reaches point A, the probe makes contact with the water, and the controller can automatically stop the pump. B is the lower water level control point in the pool. When the water level drops from point A, the probe (out of range of the water) and the controller can automatically start the pump.
Single-control downflow pool (drain water): Water level control point E - Upper. When the water level reaches point E, the probe contacts the water and the controller can automatically start the pump. D - Lower water level control point. As the liquid level drops from point D, the probe (out of range of the water) and the controller can automatically stop the pump. C - Must be placed at the bottom of the pool as a common line. A and B are disconnected.
Single-control upflow pool (water storage): A - Upper water level control point. When the water level reaches point A, the probe contacts the water and the controller can automatically stop the pump. B (blue) - Lower water level control point. When the water level drops below point B, the probe, when out of range of the water, and the controller can automatically start the pump. C (black) - Must be placed at the bottom of the pool as a common line. D (green) and E (yellow) are connected to C (black). C - Must be placed at the bottom of both the UP and DOWN pools as a common line. D - Lower water level control point in the DOWN pool. When the water level drops below point D, the probe, when out of range of the water, and the controller can automatically stop the pump. E - Upper water level control point in the DOWN pool. When the water level reaches point E, the probe reaches the water, and the controller can automatically start the pump. The pool then begins to drain. If it does not, point E is disconnected.