iACS - Experts in AHU Controls

With its residential air-conditioning solutions, Carel represents a reliable and innovative technological partner for manufacturers of heat pumps and all operators (manufacturers, installers, system integrators) who want to offer an integrated controller for indoor comfort at home and domestic hot water production systems, focusing on energy efficiency, respect for the environment and optimization of resources, as well as easy operation and complete user satisfaction. To achieve these results, Carel pays special care to technological innovation, usability and access to information. Technological innovation pCO sistema+ allows management of variable speed compressors with DC inverters that, when combined with electronic expansion valves , ensure the most extensive modulation of heating and cooling capacity currently available, maximizing residential air-conditioning system efficiency in response to different comfort requirements and different climatic conditions throughout

Carel's response to the needs of HVAC installers and manufacturers was the design of an entire range of increasingly advanced probes.  The range envisions temperature and humidity sensors with different uses, housed in sockets, ducted, residential or industrial environment, pressure transducers , smoke, fire and flood detectors, air quality probes , gas leak detectors for refrigerant units, guaranteeing performance and compatibility with all Carel controllers . Advantages Carel probes, as well as being characterized by the acknowledged performance that sets them apart, are very versatile and can satisfy various market requirements. In fact, all the probes have been especially designed to be compatible not only with all Carel controllers, but also with the most commonly used standards worldwide. The temperature and humidity probes, offering a great choice between active and passive technology, are available in different operating ranges and also in specific versions

After the great success of the IR32 controllers, Carel offers a new generation for refrigeration controls. With the new IR33 , Carel now offers: infrared remote controller programming key High performance green display Led RS485 serial board And all of this, keeping the same dimensions as the ir32! The ir33 also manages smart defrost, resulting in great energy savings for the entire insallation. This controller now automatically manages the monitoring of the unit, highlighting any critical situation. It warns when the alarm exceeds its limits, saving the main information to a permanent memory. 

We have released the Tridium Jace interface profile in Modbus available Free Of Charge for you to download. This will grant a 5 minutes integration job with a Tridium BMS system Including ALL THE GRAPHICS!! Check it out on our YouTube channel.

"One panel fits them all"  3 sizes, great flexibility:  5,5Kw ,   15Kw &   30 Kw The answer from Carel to a high customizable product such as electrical panels for Air Handling Units, has been the " Masteraria " with its revolutionary Snap-ON MCB system from Muller and a highly flexible control software. This made possible the one Control box to manage simple and complex AHUs with fans up to 30Kw. The Masteraria is a compact Electrical panel for AHU which, thanks to its powerful embedded software is able to accommodate any simple and complex configurations of Air Handling Units: 2 Contactors for Supply and Extract fans (from 0.09Kw  to 30 Kw each) IP65 protection for indoor and weather-proof installations 1 Extra contactor 230V/1ph for :            - External interfaces            - Power Sockets            - AHU internal lighting             - Heat wheel control Boxes BMS enabled for Bacnet , Lon , SNMP , Modbus , K

The Masteraria Control panel for AHUs installations are spreading out across the UK territory on very prestigious building sites. The latest installation last month has been on the Wellington Arch , in the heart of London, right next to the Royal Palace. The Carel Electrical panel, equipped with a PCO3 controller ,  manages the thermo-higrometric conditions in the building guaranteeing a precision control. The dampers, Heating coils, the DX condensing units, are controlled by Masteraria panel making sure that the overall running efficiency of the AHU package it's at its best.  Thanks to the 3 embedded comms ports of the PCO3 controller and the hi-tech MODBUS integrated Inverter (VFD) management of the new AHUE software, the Masteraria panel monitors the fan speed and airflow through a Modbus interface link, making available the inverter references straight from the semi-graphical, intuitive and user fridley display of the AHU controls. i-A.C.Systems , the excl

Headquartered in London, with over 9.500 offices in 79 countries HSBC is one of the largest banking and financial services organisations in the world. CAREL was asked to provide comfortable ambient air quality in the offices and customer areas of the HSBC in Dusseldorf (Germany). During winter time, the outdoor air is very dry and cold. Increasing internal temperature with a heating system decreases its relative humidity leading the air condition at a very low comfort level. Low air humidity levels cause dryness of the throat, nose and eyes, increasing the probability of falling ill and consequently having to take time off from work. Low humidity levels moreover, accentuate problems deriving from electromagnetic fields and static electricity that, as well as possibly damaging and interfering with electronic devices, are harmful to the health. A humiFog humidifier has been installed in the Air Handling Unit . Up to 246 kg/h of water can be sprayed by the humifog using

Technology The ExV family valves manage refrigerant expansion through a variable valve port, created by a fixed calibrated opening and a canonical movable element. The linear movement of the closing element is achieved trough the combined action of a stepper motor and a worm screw transmission, which produces precise and regular movement by minimising friction. Control precision and stability are ensured by rotating elements supported by stainless steel ball bearings. The entire mechanism is very robust, thanks to the motor block suspended on harmonic steel springs, and a technopolymer chassis that guarantees high mechanical performance and light weight. All this is made possible my careful construction, the use of quality materials, and a production process with final testing on each and every product, in accordance with the highest quality standards. Performance The care paid to the design and  production of our valves ensure market-leading performance: high maxi

A provisional date for the next 1TOOL software development suite for the Carel PCO programmable controllers has been announced to be "provisionaly" scheduled for the January 15th to the 18th in 2013. Please  contact us  if you wish to participate.  

Air-conditioning represents the process that enables and maintains specific temperature, relative humidity and indoor air purity conditions. Over and above outdoor conditions, this process enables, via the control of four variables, (air temperature, humidity, movement and quality), hygroscopic comfort for the occupants of a specific environment. In commercial buildings, there are two solutions to achieve such comfort: hydronic systems and air-to-air systems. In hydronic systems, water is used as a heat exchange fluid. The units producing hot or cold water to provide comfort are called chillers. Besides the chiller units, there are hydronic terminals (fan coils) and air handling units that heat and chill the individual environments, managing air quality.  On the other hand, the fluid used for the heat transfer in air-to-air system is air. The units used in these types of systems are air handling units and roof-tops. The latter are also called package units because they come in s

Belimo is now offering a convincing alternative to the heavyweight Globe valve actuator combinations: The extremely compact characterised control valves ( CCV ) with nominal diameters of DN 65...150 are up to three times lighter and lead to a reduction in operating costs.     More compact, lighter, better The product range of the globally unique Belimo characterised control valves is being expanded further: New flange versions in nominal diameters of DN 65 up toDN 150 control even larger sized volumetric flows with the highest of precision. Their patented characterising disk ensures an equal-percentage valve characteristic curve. Thanks to the simplicity of their construction, the characterised control valves are pressure-compensated and therefore require no holding torque when in closed position. Furthermore, because they close air bubble tight, an energy saving of up to 40% can be achieved during operation. Economical alternative The new characterised contro

All Masteraria Panels both the ones that accommodate fans with motors up to 5,5 Kw motors ( CM00006125 ) and the ones that can accommodate fans up to 15 Kw motors ( CM000006148 ), have the same identical Main Disconnect Switch which can hold up to 125Amps of current MAX (which is a lot). The reason why we have introduced such a big disconnect switch is because we tried to squeeze inside the available space of the electrical panel box the largest disconnect switch that could possibly fit so that we would have allowed the AHU Manufacturer using our panels to source as much power as possible from the extra terminals. The power input to the electrical panel and the protections upstream, do not have to be necessarily this big (125 amps), but can be smaller depending on the specific fan motor sizes connected to the specific Electrical Panel, plus any eventual extra power sourced from the extra terminals. For example, if you have a supply fan of 3 Kw, an extract fan of 1.5 Kw and a c

Below we have posted an easy and handy chart which will provide a direct reference of the replacement models of the IR32 Universal. These controllers have been phased out by Carel back in 2009 and are fully replaced by the new IR33 Universal. The IR33 Universal can now accept also ACTIVE inputs in all models with a "9" on the sixth digit of their ordering code. Replacement chart for IR32 UNIVERSAL IR32 - CODE         DESCRIPTION REPLACED IR32A00000 IR32 PANEL MOUNTING - 4 SSR OUTPUT,  NTC INPUT IR33A7LR20 IR32A10000 IR32 PANEL MOUNTING - 4 SSR OUTPUT, PT100 IR33A9MR20 IR32A20000 IR32 PANEL MOUNTING - 4 SSR OUTPUT, J/K THERMOCOUPLE IR33A9MR20 IR32A30000 IR32 PANEL MOUNTING - 4 SSR OUTPUT 4/20 MA IR33A9MR20 IR32A40000 IR32 PANEL MOUNTING - 4 SSR OUTPUT, -0,5/+1VDC IR33A9MR20 IR32D0L000 IR32 PANEL MOUNTING - 1 SSR OUTPUT, NTC INPUT IR33A7LR20 IR32D1L000 IR32 PANEL MOUNTING - 1 SSR OUTPUT, PT100 INPUT IR

To complete its range of products, Carel offers a series of modules suitable to satisfy different particular applications of HVAC/R units, for fan, pump and compressor speed control. In fact optional modules are available and have been specially designed, and therefore optimised, for increasingly important functions in today's air conditioning and refrigeration units. For what concerns condensing pressure control, there is a wide range of controllers available, allowing the possibility to be used in stand-alone configuration or connected to a controller in the pCO sistema range.  This range of controllers is available for all requirements: single and three-phase version. Regarding parametric controllers , such as the microchiller range, Carel offers a range of controllers with single phase power supply in the MCHRTF range. This speed controllers are also compatible with programmable pCO sistema controllers. They can manage single phase 230 Vac fans with 8, 10 and 12

The new Carel pGD graphic display for the pCO sistema , is an electronic device compatible with the previous PCOI/PCOT line terminals; it allows complete management with graphic LCD display to ensure greater versatility and customisation capability, while maintaining a high aesthetic standard. When Carel designed this terminal, special attention was placed on the simplicity of the programming and the quality of performance. The 120x32 pixel graphics of the pGD are managed to be able to display graphic symbols of various sizes, as well as the main international alphabets. pGD is completely compatible with the software developed for the CAREL 4x20 user interfaces; therefore it can be connected directly to any pCO sistema controller already installed without the need of extra software tools.  This version now comes under the: Panel-mounted version (code PGD1000F*0 ) Wall-mounted version (code PGD1000W*0 ) The PGD0-1 also respond to the logic of flexibility and eas