CAREL EVD Evolution
CAREL EVD Evolution Driver
CAREL EVD Evolution Driver - for electronic expansion valves
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Compared to the standard EVD, this instrument adds advanced functions and a new user interface that makes it even easier to use and configure.
A new graphic display and a simple programming procedure allow the controller to be started by selecting just 4 parameters: refrigerant used, model of valve, type of pressure probe and application (chiller, display cabinet, etc.), selected from the multiple choice menus.
CAREL EVD Evolution is complete with LEDs for controlling the main functions, and can house a removable LCD display for the configuration and monitoring of all the variables.
EVD Evolution can be connected to the pCO series controller or PlantVisorPRO for the integrated management for the driver via tLAN, pLAN or RS485 MODBUS; it can also operate independently (stand alone version) using a digital input to switch the device ON/OFF. EVD Evolution can also act as a simple positioner, with a 4 to 20 mA or 0 to 10V analogue input signal.
The new EVD Evolution series can manage other functions in addition to superheat control, such as hot gas bypass, evaporator pressure control (EPR) and control of the valve downstream of the gas cooler in circuits with CO2 transcritical cycle; other control functions include the management of the condenser pressure or the modulating thermostat function.
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