Lorentz Solar Pumping Package PS2-1800 CS-37-1

This text describes the very latest technology for powering pool pumps with solar energy. Traditional circulation pumps use alternating current (AC), while solar cells generate direct current (DC). Lorentz circulation pumps are specially designed DC pumps that dynamically adjust their speed based on the current energy production of the solar cells. This optimizes energy consumption and pump performance, ensuring maximum efficiency under varying solar conditions.

This solar cell package, named Lorentz solar cell pump package, mainly contains the controller PS2-1800 and the pump ECDRIVE 1800 CS-37. These components are developed to offer a robust and efficient solution for pool owners who wish to reduce their energy consumption and environmental impact, while maintaining optimal water quality and circulation.

The controller PS2-1800 is the core of the system and offers comprehensive control and monitoring. It is equipped with inputs for important functions such as dry-run protection and remote control, ensuring the system's operational safety and minimizing the risk of damage. Additionally, it is protected against polarity reversal, overload, and overheating, contributing to its long lifespan and reliability. An integrated MPPT function (Maximum Power Point Tracking) optimizes energy extraction from the solar cells by continuously finding the optimal operating point for maximum power. For systems powered by batteries, there is a built-in low-voltage disconnect to protect the batteries. The controller also has an integrated solar sensor that contributes to adaptive operation, meaning it automatically adjusts the pump's speed based on solar intensity. With a maximum power of 1.8 kW and a maximum input voltage of 200 V, it achieves an impressive efficiency max of 98%. The optimal Vmp** (Maximum Power Voltage) is above 102 V, and the maximum motor current is 14 A. The controller is designed to withstand ambient temperatures between -40 and 50 °C and has a robust enclosure class IP68, making it extremely durable against weather and wind.

The motor ECDRIVE 1800 CS-37 is a maintenance-free brushless DC motor constructed from premium materials, specifically stainless steel of type AL/AISI 304. An important feature is that all electronics are placed outside the motor, contributing to its long lifespan and reliability by avoiding exposure to water and heat inside the motor. With a nominal power of 1.7 kW, it exhibits a efficiency max of 92%. The motor's speed varies between 900 and 3,300 rpm, enabling flexible operation and adaptation to different pool sizes and circulation needs. It has insulation class F and enclosure class IPX4, providing good protection against splashes. The pump end, PE CS-37-1, includes a check valve and is made from premium materials such as PP to ensure corrosion resistance. This centrifugal pump achieves a efficiency max of 57%, which is a measure of how efficiently it converts the motor's mechanical energy into fluid flow.