Controller Dixell IC208CX 11100 EVO v4.3 for heat pumps and chillers with stage control

The Dixell iChill IC208CX controllers are the answer to the control requirements of real-world applications such as chillers, geothermal and standard air/air, air/water, water/water heat pumps and more. This advanced multi-function controller with eight outputs allows stepped control of one to two chiller circuits and other devices (such as solar collectors for DHW heating, heating coils, etc.) in up to four different operating states (e.g. depending on the outside temperature to control heating, ventilation, building air conditioning, DHW preparation). The controller allows detailed setting of individual inputs and outputs, for a wide range of controlled applications. The Dixell IC208CX iChill offers an All-in-One control solution for composite HVAC and HVAC heating solutions.

Dixell IC200 evo is an upgraded series of iCHILL controllers designed for chillers and heat pumps. Its main advantages are compactness, extreme flexibility, electronic expansion valve control and advanced features such as free cooling without compressor circuit, water heating, and other functions covering a wide range of requirements. Controlled units can be single-circuit or dual-circuit, containing up to 6 compressors. The Dixell IC200 evo allows you to control systems such as: air/air, air/water, water/water, motocondensing units, geothermal heat pumps, compressor dryers and more.

The advantages and features of these controllers include:

• Direct push-button control of a single circuit/compressor
• LAN bus for master/slave connection to another controller
• Combined / Forced defrost
• Alarm control even in standby mode
• Suction (exhaust) function before start or stop
• PWM / 4..20mA / 0..10V output for fan control
• Temperature/pressure based power reduction function
• Control of all types of compressors including screw compressors
• Load balancing for compressor sets
• Unstart compressor using star - triangle switching
• Control based on dynamic setpoint
• Control of geothermal free cooling applications
• Compressor power control by frequency converter
• Control of EEV electronic expansion valves
• DHW preparation by heat pump or heating rods
• Management of solar panels for DHW heating
• Time-dependent operation and power control via RTC (Real Time Clock)
• TTL output for conversion to RS485 ModBus

A typical wiring example, including the controlled components, is shown in the following figure.

The Dixell IC208CX is a comprehensive controller designed for experts who are familiar with heat pump control. We highly recommend using the PROG-TOOl KIT programming tool to set parameters (can be used on other Dixell controllers) or the XJ485 USB KIT (requires a separate power supply to the IC208CX when programming). This eliminates the need to set hundreds of parameters using the buttons on the controller.