Main Characteristic; User Interface - Emerson Dixell IEV22D Manual

2. Main characteristic

IEV is an electronic controller designed for the management of one or two stepper motors (unipolar or
bipolar) of electronic expansion
valves .
IEV is available with a single driver for use with single gas circuit (IEV22D) or double drivers for
applications in two gas circuits (IEV24D).
IEV is compatible with several types of refrigerant and the main valves available in the market.
Two different regulation are available:
• STAND ALONE: the digital inputs are used to start the superheat control. Evaporating pressure
transducer and suction temperature probe has to be connected to the IEV;
• LAN: the IEV can be connected to the Ichill 200 EVO series to control the machine (chiller or heat
pump) and the superheat.
Evaporating temperature probe has to be connected to the IEV and suction pressure transducer can be
connected to the IEV or to the Ichill (by configuring dedicated parameters).
To guarantee the best regulation is recommended to connect the suction pressure transducer directly to
the IEV.
Main features:
• management of one or two electronic expansion valves
• compatibility with several models of valve
• compatibility with different types of refrigerant gas
• manual control of PID regulation or adaptive regulation
• digital inputs to start regulation in STD_ALONE configuration
• LAN connection with IC 200 EVO family controllers
• double- digit display for simultaneous multiple information

3. User interface

1592026260 IEV22-24D GB r.1.0 21.02.2019 IEV 7/60