Green industries

The recent official announcement on the phase-down of HFCs by the European Council and Parliament is aimed at strictly limiting the use of fluorinated gases, so as to reduce their emissions into the atmosphere and the consequent rise in global temperatures: this means new dynamics from a technological point of view, due to the ever-increasing adoption of low-GWP refrigerants, such as propane.

CAREL is ready to face the current challenges and opportunities that are arising in industry, in particular in the process industry, offering μChiller Process for the small and medium-sized process chiller market, as well as advanced programmable controllers for larger process chillers.

Download the "Solutions for green process cooling" brochure


The μChiller family is the CAREL solution for complete management of commercial air/water and water/water chillers and heat pumps with on-off and/or DC compressors; specifically, μChiller Process is the only parametric controller with innovative connectivity features that can manage all the typical functions required for process chillers to ensure ample usability, including hot gas bypass and tank management, control of two user pumps, and the possibility to manage two auxiliary loops in addition to control of the main refrigerant circuit.

μChiller Process meets the main requirements of this sector, such as compatibility with the current F-gas regulations, and is ready to operate with natural and low-GWP refrigerant gases, such as CO2, R290, R32, R452B, R454B, R513A and many others. In addition, end users can make use of advanced local and remote connectivity functions for simple, fast, and intuitive system management, including through dedicated apps for smartphones and tablets (Applica).

The μChiller Process family portfolio, together with electronic expansion valves, drivers, compressors, sensors and many other accessories, are part of the range of CAREL solutions classified as A2L ready and A3 ready and therefore meet the certification requirements for use with flammable gases; μChiller Process can therefore be easily integrated into bundle solutions, ready to be used by unit manufacturers to achieve the required objectives in terms of high efficiency, safety and electrical compliance, as well as fulfil the latest technical requirements for industrial HVAC applications, requirements that will also shape the future of the market.


Two independent control loops and PID with autotuning (3-way mixing valve, modulating pump for constant pressure, etc.).


Hot gas bypass control via solenoid valve (ON-OFF or modulating via SSR) or ExV. Second valve management with EVD mini or external EVD EVO.


Storage management via auxiliary sensors (minimum level control, preheating, heating, etc).


ExV closed even in the event of a power failure, thanks to the Ultracap module (to avoid flooding the evaporator).


Lightweight and compact user interface, featuring backlit buttons and NFC (Bluetooth optional) for optimum usability via app.


Compressor envelope control to ensure reliability and service continuity.