EVD ice is an electronic superheat controller for Carel unipolar expansion valves. EVD ice has been specially designed to be installed near the valve, directly on the refrigerant circuit, simplifying installation and making electronic expansion valve technology available directly on board the unit. The plastic cover material on EVD ice guarantees total protection, allowing the controller to operate in particularly difficult environmental conditions, such as low temperatures and high humidity (condensation). EVD ice can be installed directly on a unit cooler/evaporator inside a cold room. The controller is already fitted with sensors, signal and power cables: to complete the system, simply select the most suitable valve body and pressure transducer for the required cooling capacity from the compatible Carel product range. EVD ice controls refrigerant superheat and optimises refrigerant circuit efficiency. It allows considerable system flexibility, being compatible with various types of refrigerants, in applications with refrigerators and chiller/air-conditioners. It features low superheat protection (LowSH), high evaporation pressure (MOP) and low evaporation pressure (LOP) functions. The device also has a user interface that displays the instant superheat value at all times, signals any alarms, and above all can be used to set the operating parameters. When installing the controller, only three initial parameters are required to start controlling the valve in the system: - type of refrigerant - operating mode (cold room, showcase, etc.) - superheat set point. EVD ice can easily be accessed via an RS485 serial connection (Modbus protocol), for supervision of operating parameters and alarms in real time. The serial connection can also be used to set the operating parameters over a remote connection; in this case, combination with other Carel controllers is recommended (supervisors and cold room controllers).

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