Programmable Controller Solutions

Products / Programmable Controllers Solutions

CAREL lead the evolution of control technology and humidification for air conditioning and refrigeration.
Our products support customers with the most efficient energy savings solutions.
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CAREL - pCO Sistema Series

pCO sistema is the solution CAREL offers its customers for managing HVAC/R applications and systems. It consists of programmable controllers, user interfaces, gateways and communication interfaces, remote management systems to offer the OEMs working in HVAC/R a control system that is powerful yet flexible, can be easily interfaced to the more widely-used Building Management Systems, and can also be integrated into proprietary supervisory systems. pCO sistema guarantees reliability, while being easily modifiable, so as to differentiate between the air-conditioning and refrigeration unit in terms of both appearance and functions. Several sizes are available, based on the number and type of inputs/outputs, whether the Built-In terminal is fitted and the size of flash memory provided. The plastic case with DIN rail mounting guarantees high mechanical protection of the board and reduces the risk of electrostatic discharges, as well as housing an optional built-in user interface with 8x22 LCD and 6 buttons backlit by LEDs.

Interface – The pCO sistema terminals are available in panel or wall-mounted versions, with LED, alphanumeric and graphic LCD displays, allowing the messages to be shown in Chinese, Cyrillic, Arabic, Japanese.
Communication – It can interface to the more widely used communication standards, either directly or via gateways (Modbus®, BACnet™, Johnson Metasys®, DLL for Windows®, TCP/IP, SNMP, LonWorks®, Konnex®). It can also interface to intranets or the internet using a gateway that converts the CAREL protocol to TCP/IP Ethernet™ 10 MB/s. In addition pCO sistema controllers are able to receive and send SMS messages using a simple GSM modem. All the pCO sistema components can be connected without requiring additional cards to pLAN networks for exchanging data and information.
High technology – A 32-bit microprocessor guarantees high program running speed including control of faster transients. The parameters can be protected by various password levels. Thanks to the high capacity of the flash memory and the clock with battery the first value even for extended periods.
Applications – The programmability of the pCO series means that applications are possible for chillers, air-conditioners, shelters, roof top units, heat pumps, compressor racks, AHU.

CAREL - c.pCO Sistema Series

c.pCO sistema is the solution CAREL offers its customers for managing HVAC/R applications and systems. It consists of programmable controllers, user interfaces, communication interfaces, remote management systems and cloud services to offer the OEMs working in HVAC/R a control system that is powerful yet flexible, can be easily interfaced to the more widely-used Building Management Systems, and can also be integrated into proprietary supervisory systems. c.pCO sistema guarantees reliability, while being easily modifiable, so as to differentiate between the air-conditioning and refrigeration unit in terms of both appearance and functions. Several sizes are available, based on the number and type of inputs/outputs, whether the Built-In terminal is fitted and the size of flash memory provided. The plastic case with DIN rail mounting guarantees high mechanical protection of the board and reduces the risk of electrostatic discharges, as well as housing an optional built-in user interface with semi-graphical LCD and 6 buttons backlit by LEDs.

Networking – The c.pCO controller family represents the evolution of pCO5+ towards unprecedented networking capabilities. Integrated Ethernet interfaces offer a wide range of open standard protocols for local connectivity (Web server, Modbus/TCP, BACNet, FTP, DHCP, DNS, NTP).
Cloud services – Plug & Play solution for tERA platform connection. All tERA services are available just connecting the Ethernet plug to your home or office network, without the need for an external connection box.
New Operating System – New Multitasking Operating System ensures optimal system resource usage, extended datatypes for user application (32 bit floating point numbers) application speed increase and independent protocol engines
Interface – The c.pCO sistema terminals are available in panel or wall-mounted versions, with LED, alphanumeric and graphic LCD displays, allowing the messages to be shown in Chinese, Cyrillic, Arabic, Japanese.
Communication – Additional communication cards can expand the platform connectivity towards different networks either directly or via gateways (Modbus®, BACnet™, TCP/IP, SNMP, LonWorks®, Konnex.
I/O Flexibility – All c.pCO controllers features Universal I/O pins, which can be software configured as Analog IN, Digital IN and Analog OUT.
Applications – The programmability of the c.pCO series means that applications are possible for chillers, air-conditioners, shelters, roof top units, heat pumps, compressor racks, AHU and many others.

CAREL - µChiller Series

μChiller is the solution for complete management of air/water and water/water chillers and heat pumps with on-off and/or DC compressors. With serial communication available across the entire family of controllers, the main unit actuators (electronic expansion valve, fan controller, compressor inverter, etc.) can be managed to optimise unit control and efficiency. The range of models also includes wireless connectivity with NFC (Near Field Communication) as standard, as well as Bluetooth on dedicated models, allowing interaction with mobile devices using the CAREL “APPLICA” app, making it easier to configure parameters and commission the unit in the field. The use of APPLICA represents a substantial novelty in the evolution of CAREL controllers. In fact with APPLICA the maintenance men on field can configure the unit in one single operation, receiving alerts in the event alarms and exchanging information with a remote service team. Moreover, when new features become available on the market, the app can be simply updated to guarantee service continuity, even on units that have already been installed. The APPLICA application is available on Google Play for devices with Android operating system.

Display, even on remote, of all electrical peaks via an unique user interface.
Identification of any abnormal sampling and energy waste
Alarms for exceeding the sampling thresholds
Scheduling of the loads using specific and detailed periods of time. with exception periods.
Flexibility in installation thanks to wireless network support on the Carel rTM standard system.
It is able to interface with standard pRack control system (cod. PRK*00*); these two control systems allow you to limit or modulate the supplied refrigerating power, optimising the electrical consumption as to avoid absorption peaks and maintaining at the same time proper functioning of the refrigerating unit.

CAREL - Lighting Management Series

The CAREL solution for the control and monitoring of lights and non-food appliances comprises a complete range of devices designed to significantly reduce energy wastage, bringing additional cost savings for end users. The solution includes a pChrono controller to manage lights and non-food devices, i.e. generic loads such as air extractors, air curtains, vending machines, etc. Other devices supplied, such as wireless power points, make the system more flexible by increasing usability and expanding the range of applications.

Adapted to manage lighting points and general loads, from Convenient Store to big supermarket. Flexible and modular thanks to wireless network support on the Carel rTM standard system.
Provided with flexible and dynamic interface on PlantVisorPRO monitoring service, the user has full plant control and its programming is fast and intuitive. The interface between pChrono and the PlantVisorPRO system allows optimizing the ignition of the external lights, for example, on sunrise and sunset information provided by ECO-HVAC plugin (Geo-LIghting)

CAREL - Waterloop Systems Solutions

Heos sistema is the continuous-modulation solution for water loop systems in commercial refrigeration applications. By using simple condensing units equipped with DC inverter compressors and electronic valves, maximum performance can be attained in terms of energy efficiency, optimum food preservation, easy installation and maintenance. Each unit can work independently of the others and in the best possible operating conditions, ensuring excellent stability and the highest possible evaporation temperature, making it by far the most efficient solution available on the market. Temperature control is managed using an advanced algorithm that adjusts cooling capacity in relation to demand, thus guaranteeing the highest quality of food preservation. The heat generated by the compressor is taken away by a water loop to a simple dry cooler outside of the building, or alternatively can be easily recovered for use by the air-conditioning systems. All of the components are designed to work in synergy, so as to achieve the best performance in all operating conditions. Energy savings, the main objective of the system, are further ensured by controlling the water loop, using dedicated hardware that manages the main components, such as a dry cooler, pumps and selector valves. Commissioning is simplified by the use of plug & play showcases, with a simple guided configuration procedure that saves time and effort, while complete control of the unit, combined with preventive diagnostics algorithms, helps avoid malfunctions and plan maintenance.

DC technology
Variable-speed compressors with DC motors allows considerable energy savings by guaranteeing optimum operation at part loads (which accounts for the bulk of operation). Permanent magnet motors feature less energy dissipation and increase efficiency. The wide range of modulation ensures the best operating conditions, guaranteeing improved stability and a reduction in ON/OFF cycles.
Electronic expansion valve with stepper motor
The modulation provided by the electronic expansion valve brings significant savings across the entire refrigeration cycle, above all when managed in perfect sync with the variable-speed compressor, allowing continuous evaporation temperature control so as to ensure efficiency in all operating conditions.
Advanced control systems
The use of advanced control systems and the significant amount of information acquired from both the system and the showcase controller mean predictive algorithms can be implemented to anticipate any malfunctions and/or breakages.
Heat recovery between the different systems in the building
The heat generated by condensing units with on-board compressors can always be recovered. The most flexible and practical solution involves the installation of a water-water heat pump, in which the cold source is the water used for the condensing stage on the showcases.

CAREL - Cold Room Solutions

The mpx series controllers are the most complete and powerful range of electronic instruments for the control of multiplexed refrigeration units or systems made up of groups of units that need to operate in a "coordinated" manner. mpx offers the following innovative features: advanced electronic technology excellent performance in the control of refrigeration units elegant appearance simplified manufacturing, in particular: assembly and wiring, thanks to the use of Molex® quick connectors setting of the operating parameters, by downloading the parameters to the instruments connected in a network final testing of the refrigeration unit using an incorporated autotest procedure.

The extraordinary power and versatility of the mpx series guarantees the final user the following functions:

defrosts at set times, thanks to the clock (RTC) with battery
possibility to manage, via the mpxLAN, multi-evaporator utilities (multiplexed cabinets, cold rooms with a series of evaporators)
standards compliance:
third multifunction probe (EN 441)
repeater display (EN 441)
recording of alarms (HACCP)
electrical safety (CE, EMC)

Advanced features

alarm log: mpx saves any alarm signals (including the time for the models with RTC);
day/night operation;
auxiliary or alarm relay;
fan relay that can be used as an auxiliary;
third multifunction probe;
additional remote display to read a second temperature;
2 programmable digital inputs;
self-diagnostic functions;
sharing of controllers via mpxLAN.

CAREL - pRack Transcritical Series

pRack is the complete CAREL offer for managing the centralized CO2 refrigerating units. It is the ideal solution to the multiple market requests regarding: • high number of inputs and outputs for control needs; • innovative management algorithms for power saving; • compatible with the main market standard adjustment devices; • wide possibility of integration/monitoring The know-how on the natural refrigerating applications of Carel allowed designing a new control system of the PRACK series, adding to the stability of a product designed for the management of refrigerating units, the innovation of the most recent dynamics of dioxide refrigeration. The new Transcritical pRack platform, ideal for CO2 booster systems, is able to manage directly and at the same time with a single control system, the main components of a CO2-based refrigerating unit: - Medium Temperature compressors - Low Temperature compressors - gas cooler - intercooler - high pressure valve - flash gas valve

EEVS: Electronic Expansion Valve synchronization
Direct management of 2 stepper electronic expansion valves that optimize the machine performance increasing the interaction between the refrigerating unit and the up valves and the plant safety thanks to the ultracap technology.

CAREL - pRack Standard Series

pRack is the complete CAREL offer for managing the centralized refrigerating units. It is the ideal solution to the multiple market requests regarding: high number of inputs and outputs for control needs; innovative management algorithms for power saving; compatible with the main market standard adjustment devices; wide possibility of integration/monitoring pRack can manage the most part of the market needs, can be used to manage both small and large plants. With pRack you can manage up to two suction lines and two condensing lines with a single control. standard pRack platform is a reference product on the retail market; its solidity and resistance are based on its two main features: - simplicity - flexibility - customisability - power saving - system optimization

DSS Double System Synchronization
In case of cascade plants, the low temperature plants communicate with the medium temperature plants to optimize the functioning of the entire system. The communication between plants allows speeding up the system response to working conditions variations

CAREL - Condensing Unit Solutions

Hecu Sistema is the CAREL solution for commercial refrigeration, designed for high energy efficiency condensing units that use either traditional HFC refrigerants or natural refrigerants such as CO2. The system’s distinctive features include the use of DC inverter technology and real-time synchronisation with the refrigeration units. Hecu sistema meets the requirements of the latest environmental sustainability standards relating to energy consumption (Eco-design directive) and the use of low GWP refrigerants (F-Gas regulation). Stable control means high-quality food preservation and a drastic reduction in waste. Hecu sistema is also compatible with all CAREL supervisors, which can monitor each individual system or groups of systems, and offer dashboards to simplify interpretation and analysis of system operation.

Solution compliant with European and international targets to adopt low GWP refrigerants and achieve better energy efficiency at part loads
Available for both traditional HFC refrigerants and natural refrigerants such as CO₂
Low refrigeration system carbon footprint, of special interest to the retail industry
High food quality and consequently less waste
Simplified energy management initiatives through the use of connectivity tools and availability of complete information on each system
Data analytics tools for system optimisation and preventive maintenance

CAREL - µRack series

With the µRack series, CAREL offers a series of compact and economical parametric controllers that are simple to use and install, for the complete control of small compressor racks, with the possibility to manage up to 5 relay outputs for controlling devices such as the compressors and fans. µRack uses a high efficiency LED display to show the values monitored, and icons representing the status of the devices and the operating modes. The electrical connections have quick couplings for the fast and safe connection of the instrument, and cable kits can be created when the controller is installed on the production line. Using the PWM output, the controller can also manage the condenser fan speed control. A series of optional modules widens the range of performance of the instrument, allowing rapid programming using the hardware key even when the instrument is off, and connection to the supervisory system for the complete monitoring of the unit. Compressor racks with floating condensing pressure control can be managed if the installation (showcase-cold room) is fitted with electronic valves. One very innovative feature allows the same controller to manage mixed systems of compressor racks with two refrigerant circuits, a single condenser and two suction set points. The functions implemented, the dimensions and the simple installation and connection make these controllers the best solution for the management of compressor racks

Compact dimensions;
Model for panel or DIN rail mounting;
High reliability ensured by the use of a standard hardware platform;
Ergonomic and high efficiency display with icons;
Simple wiring;
Complete management of the compressor rack

Solutions for blast chillers and freezers

CAREL - Refrigeration Parametric Controls Series

Heez Series
Heez is the new control solution for refrigerated merchandiser with very low power consumption and incredible pull-down time.
At the heart of this solution is rotary DC inverter technology, ensuring highly stable temperature control and a dramatic decrease in refrigerator noise, while at the same time reducing overall dimensions so as to allow more space for the goods on sale.
Heez provides all these benefits on top of robust usability, with self-adaptive algorithms that recognise different operating conditions and respond with either high efficiency or high performance when appropriate.
The new UltraCella platform is designed to fit the needs of all cold rooms. It’s the result of analysis, experience and understanding of current and future market requirements. It’s a new generation of controls based on latest CAREL technology: the powerful platform allows to connect more sensors and loads than other standard solutions, and to handle them with optimized and advanced regulation algorithms, for the total control of cold room. Particular attention is about the usability for all UltraCella users, in all the working phases. Installation, commissioning and daily use: three different phases, in charge to users and customers with different skills and needs: with UltraCella, experience of each one of them will be more than satisfactory, thanks to unique features in the control for cold rooms overview. In terms of offer flexibility, the innovative mechanical modular concept allows to add in a really simple way additional features, both add-on and remote. UltraCella is an “open” platform, ready for next features development. UltraCella is compliant with HACCP International for food safety, first instance in Italy in the family of electronic devices for refrigeration equipment, as statement of its suitability to ensure quality of preserved food.
Cella Range Series
The new UltraCella platform is designed to fit the needs of all cold rooms. It’s the result of analysis, experience and understanding of current and future market requirements. It’s a new generation of controls based on latest CAREL technology: the powerful platform allows to connect more sensors and loads than other standard solutions, and to handle them with optimized and advanced regulation algorithms, for the total control of cold room. Particular attention is about the usability for all UltraCella users, in all the working phases. Installation, commissioning and daily use: three different phases, in charge to users and customers with different skills and needs: with UltraCella, experience of each one of them will be more than satisfactory, thanks to unique features in the control for cold rooms overview. In terms of offer flexibility, the innovative mechanical modular concept allows to add in a really simple way additional features, both add-on and remote. UltraCella is an “open” platform, ready for next features development. UltraCella is compliant with HACCP International for food safety, first instance in Italy in the family of electronic devices for refrigeration equipment, as statement of its suitability to ensure quality of preserved food.
ir33+ platform
he new ir33+ range of controllers fulfils the main needs required of refrigeration controllers: a simple appearance, extremely intuitive yet highly attractive, featuring a completely flat surface that makes it easy to clean and ensures an excellent level of hygiene.
Easy Series
CAREL, the leader in cooling control, offers the refrigeration market the best of its parametric controller technology in one innovative product: easy.
Our in-depth knowledge of the applications in this sector long with the needs of the market has allowed CAREL to design a technologically advanced product with a simple approach.
easy is the expression of CAREL’s decades of experience in refrigeration and the special care it has always paid to details. With easy, CAREL offers the market a product designed specifically for refrigeration control for bar, catering, display cabinet and refrigerated showcase applications, designed based on feedback “from the field”, with an elegant and modern design.
easy is a range with a wide choice of models, including a compact version that is ideal for environments in which space is a crucial element.
easy is the best choice for simply and effectively managing the complex world of refrigeration control.
Solutions for blast chiller and freezers
CAREL, with more than thirty years’ experience in electronic temperature controllers, proposes a new solution for blast chillers/freezers
Blast Chiller is CARELs’ complete range of controllers and user terminals, including top of the range model with large graphic display to satisfy the needs of even the most demanding users looking for innovative & energy efficient solutions.
Intuitive graphic display with icons that guides the user with instructions and tips.
Powersplit series
Powersplit is a range of products for multiplexed cabinets fitted with on-board compressors. These comprise a main board for controlling the actuators, with 4 or 6 relay outputs, and a user terminal with 3-digit LED display. They are designed to reduce wiring and the related power components; the power board has been designed so as to eliminate the wiring terminal block. Main features include: optical light sensor, power relay, and HACCP event monitoring thanks to the optional clock card. Powersplit can multiplexed manage defrosts (up to 6 units) across a LAN, connecting the power boards via a serial line. As well as defrosts, the local network also makes it possible to centralise controls and alarms.
ir33 series
ir33 represents the maximum that CAREL technology has to offer in the field of applications for refrigeration. The four base versions (12Vac, 12/24Vac/dc, 230Vac and 115/230Vac) give rise to a vast range of products in different configurations. One particularly innovative version is the 115/230Vac model with built-in switching power supply, 4 relays and clock, all in the same size as the current ir32 range. For manufacturers CAREL offers the 230Vac version: more compact than the other versions, with a more essential configuration and consequently more competitive in terms of price. The 12Vac and 12/24Vac/dc models represent the evolution of the ir32 series and are designed, due to their similarity, to be their natural replacement. The operating logic follows the same lines, and the appearance reflects a number of the same characteristics, however the functions have been enhanced: the changeover from the previous range to the new version is thus simple and beneficial. Most of the models are fitted with a 16A (3/4 Hp) relay for controlling the compressor.
Powercompact series
Powercompact is a range of products that is particularly suitable for cabinets in the catering sector and for refrigerated showcases in pastry and ice-cream shops. The devices are fitted with a 3-digit LED display and eight buttons, giving users the possibility to access to the main functions of the connected refrigeration unit. The controllers are available in standard and small sizes, occupying a depth of just 40 mm on the unit, making them the ideal solution for applications where limited space is available to house the controller. Models are available with 2 to 5 relays, including a 2 HP relay for the compressor, and with transformer or extended range switching power supply (115/230 Vac).