CLIMASET srl offers a CAREL EVD driver for managing every electronic expansion valve, from CAREL or from other manufacturers. These drivers keep overheating to the desired value and can manage a great variety of refrigerants, from small domestic heat pumps to big industrial aero-evaporators, passing to precision conditioning units or process and conditioning chillers.
CAREL EVD drivers offer high efficiency, configuration simplicity, and advanced functions for compressor protection.
EVD Evolution
The EVD Evolution series is the last stage of the development of CAREL drivers for overheating management. The device has a new easier user interface: a programming procedure permits to start the regulation by selecting the refrigerant in use, valve model, pressure vale type, and the application type (if they use the device for controlling CAREL valves, they just have to select three parameters).
Other features are:
- Overheating regulation with auxiliary protections for high pressure, low pressure, and low overheating,
- Usage of the low-power ratiometric low-pressure transducer with a 4…20 mA output (shared also with more than one driver),
- Second digital input for thawing, possibly to use backup probes.
With CAREL ExV series electronic expansion valves, the EVD driver allows for optimizing the working of the evaporator and achieving big energy savings.
EVD Evolution Twin
EVD is predisposed to be mounted on a DIN rail and has extractable screw terminals
EVD Evolution Twin is the control composed of two drivers for bipolar step-step for independently managing two electronic expansion valves. It is predisposed to be mounted on a DIN rail and has extractable screw terminals.
Every driver allows for regulating overheating refrigerant and for optimizing the yield of the refrigeration circuit: it is compatible with various refrigerant types and valves, in applications with chiller, conditioning, and refrigerators, these last one also with subcritical and transcritical CO2.
Features:
- Overheating regulation with auxiliary protections for high pressure, low pressure, and low overheating;
- Special regulations such as the hot gas by-pass, EPR evaporator pressure regulation, and command of downstream gas cooler valve in transcritical CO2 circuits;
- Optimization of the overheating regulation dedicated to conditioning units that are equipped with a Digital Scroll compressor, if embedded with a specific CAREL controller via pLAN, with the possibility of starting one or more ionization procedures (tuning);
- Starting the assisted procedure with only four parameters (if they use the device for controlling CAREL valves, they just need three parameters);
- Use of low-consumption ratiometric pressure transducer with a 4…20 mA output (this last one can be shared up to five drives), useful with channeled applications.
EVD ICE
EVD ICE is suggested for factory facilities because is equipped with all precabled accessories
EVD ICO manages electronic proportional expansion valves CAREL ExV, it may also be installed on the evaporator for refrigerated rooms or other applications, it is engineered for use with low temperatures.
EVD ICE is suggested for factory installations because is equipped with all precabled accessories, including the electronic expansion valve and all sensors needed. EVD ICE is capable of working with regulation and third-party supervision or in a standalone mode.
EVD400
The EVD400 driver is an advanced PID control with a driver for a step-step motor developed for managing and positioning of refrigeration circuits and electronics expansion valves.
Its sophisticated regulations functions work following a dynamic comparison between the input signal and the reference one, by working on the overheating value (with protection functions) or on the single measure parameter (pressure or temperature). EVD400 could be connected to a supervisor or to a LAN network with other CAREL controllers.
Ultracap
Ultracap assures complete valve closing even with sudden power failures.
