iACS - Experts in AHU Controls

The humiFog can be used in the following configurations: Single zone for applications in AHUs, the pump operates at variable pressure with flow control, for precise and continuous modulation of humidification capacity. Multizone for applications in AHUs and in rooms, in which a pumping unit (master) supplies multiple distribution systems (up to 6). Water pressure is kept constant (70 bars), capacity is modulated in steps. The multizone configuration rationalizes the use of the humiFog pumping unit as, despite the lower precision due to stepped modulation (±5% against the ±2% guaranteed by the single zone solution), it can manage multiple zones at the same time, without having to install a pumping unit for each AHU or industrial environment. Direct humidification into rooms: humiFog multizones is the ideal system, as by keeping water pressure high (70 bars), each nozzle generates a cone of very fine droplets (average diameter 10 to 15 µm) that evaporate completely in ...

Steam generator humidifiers use an external energy source, electricity or gas, to take water to boiling point, thus producing steam. The choice of the type of energy depends on availability, cost and the investment necessary. The humidifier can use mains water; a solution that minimizes the cost of the system but which requires periodical maintenance in order to remove the mineral salts that accumulate or, more simply, to replace the cylinders (humidifiers with electrode technology) so as to minimize system shutdown periods and maintenance costs. The steam produced by boiling is easily injected inside the air handling unit, requiring a small space for complete absorption. The space required can be reduced using latest generation products such as the ultimateSAM, fitted with nozzles that evenly distribute "dry" steam only. Alternatively, humidification can be applied directly in the environment with steam distributors fitted with fans, a simple method often used in existi...

PlantVisorPRO is the Carel monitoring and supervision system that allows complete control and optimisation  of refrigeration and air conditioning systems. It offers an intuitive and customisable interface for the display and configuration of the system. PlantVisorPRO guarantees remote access to all devices connected to it via the LAN or MODEM connection. The system is available as a complete all-in-one solution: the product integrates all field connections, digital inputs and output relays. Energy Saving:  Optimisation and monitoring of system performance: specific functions for the increase in installation efficiency and for the analysis of energy consumption trends. Floating Suction Pressure Control: Automated modification of the refrigeration unit set point depending on the cooling requests from the refrigerated counters it serves. Dew Point Broadcast:  Propagation of the information relative to room temperature and humidity in order to calculate the dew ...

The structure and modularity of the pGD family displays always ensure the right solution for different requirements in therms of performance, cost and appearance. The new pGD Touch range had been designed for high level applications that require touchscreen technology combined with an elegant design and extensive connectivity possibilities. The pGD1-pGDe series is focused on applications that require a good compromise between performance, competitiveness and appearance.  The pLD series (programmable LED display) is ideal for applications where the main requirements of the user interface are reduction in costs and the space required for installation. The th-Tune series room terminals have been designed as simplified and intuitive interfaces, particularly suitable for end users. Design and technology The pGD Touch series interfaces represent the most high-tech Carel product offering in this area. The TFT full touchscreen display with 65000 colors and WVGA r...

Integrated communication between chillers and fan coils is an increasingly important requirement for manufacturers of these air-conditioning units . Carel has taken up the challenge of joining and combining these two different elements, offering its customers a solution that is easy to manage, ensures increased indoor comfort and considerable energy saving. e-dronic is a system of user interfaces, I/O boards and accessories for managing and controlling chiller/fan coil systems. e-dronic is compatible with the already established pCO platform, and exploits its advantages in terms of flexibility. Hardware architecture Zone Broadcast Zone broadcast is the typical solution for single offices and small shops that require a limited number of fan coils per zone, and where the zones do not necessarily need to communicate with one another or with a centralised supervisory system. The communication protocol used is based on a broadcast approach, therefore all the slave units follow c...

Carel offers increasingly advanced solutions in the field of parametric controllers for HVAC/R applications. Specific commitment is dedicated to universal controllers , which provide the user with a powerful and flexible instrument that can easily be configured. Starting from extremely simple control strategies the user can, by modifying just a few parameters, adopt control algorithms that are much more sophisticated and innovative, for example PID with AutoTuning. The comtool software can be used to configure the parameters on the controllers directly from a personal computer. Simple installation is also an important factor, both as regards assembly and wiring, using standard templates and quick connectors. Finally, all universal controllers can interface with Carel supervisory systems and open supervisory systems.

compactSteam is the Carel proposal for the humidification of prestigious residential environments,  professional offices or small and medium retail premises. compactSteam is an immersed electrode humidifier , with following main features: elegant and discrete design, ideal for installation in any environment; built-in steam distributor, with adjustable louvers and very silent operation; large graphic LCD for straightforward understanding; market-leading functionality, safety and user friendliness; models from 1.6 to 5.4 kg/h; electrical and water connections can be completely concealed from view, and drain water temperature never exceeds 60°C. In addition, if no humidification is required for more than 3 consecutive days, the water is automatically drained for maximum hygiene. A version without built-in distributor is also available, for steam distribution in the duct, as well as a remote blower, which allows steam to be distributed in a different room from wher...

ChillBooster is made up of a pumping station and a water distribution and atomisation system: an electrical panel for ON/OFF control of capacity; a pump power supply solenoid valve; inlet water pressure switch; an impeller pump with incorporated pressure adjustment valve calibrated at 10 bars; outlet pressure gauge; high temperature protection heating valve; drain solenoid valve for unit shutdown; modular stainless steel manifolds with 20 mm diameter; atomiser nozzles; distribution system drain solenoid valves, at line end; corrugated steel flexible connection hoses; metal compression fittings; UV system for cleaning and disinfecting water inside the cabinet (optional). The pumping station is available in two versions: stainless steel version for demineralised water (recommended), or version for normal water with brass pump. Supply and top-up water ChillBooster can operate with untreated drinking water and with demineralised water. Following the evaporati...

Carel supplies a complete range of products that make use of the principles of evaporative cooling and all its advantages. The standard composition of these products is: - cabinet, containing the pump for pressurising the water, an inverter and an electronic controller for modulating the production of atomised water instant by instant; - atomiser nozzles, able to atomise the water into very fine water droplets (in the order of a few hundredths of a millimetre), extending the heat exchange surfaces. - distribution system, composed of stainless steel manifolds, atomiser nozzles and drain valves, in order to guarantee emptying. Advantages - energy saving: combines adiabatic humidification and evaporative cooling in a single global solution for energy saving within the AHU. - pressure loss management: optiMist guarantees real energy savings, assuring a very low pressure drop at the fans (30 Pa); -controlled atomisation: in order to completely exploit the potential of...

" Evaporative Cooling " is the process in which water cools the air through evaporation. For this to happen spontaneously, without the contribution of external energy, the water must be atomised in the air as very fine water droplets which, having a lower surface tension than the surrounding air, evaporate into the air. Why does the air cool down?  No contribution of external energy is necessary, however, owning to its nature, the water evaporation process requires a certain amount of energy. This energy is removed from the air itself which, in order to absorb the water must release sensible heat, thus lowering its own temperature. Every kilogram of water that evaporates absorbs 0.69 kW of heat from the air. This is how the dual humidification and cooling effect of the air is obtained through the Evaporative Cooling process, which in many air handling applications represent two desired effects. Energy Saving The rapid development of evaporative cooling in HVAC app...

i-A.C.Systems offers a range of sensors with different features for the various controllers , suitable for different applications mainly in the HVAC/R market sector. The accuracy obtained thanks to the technical solutions used in developing the sensor and the reliability as a result of the tests to which they are subjected, means that Carel NTC probes are reliable transducers for measuring temperature at a low cost. Probes for sockets assembly are available in strips for installation on pimping for pass-through with or without pre-heater, to measure the core temperature of the product, and a sensor for estimating product temperature. Technical Specifications: - Operating conditions: -50T105  ° C - Protection rating: IP67 and IP68 - Assembly: depending on model - Dimensions: depending on model

The use of a global monitoring and supervision system is always more essential, due to the necessity to manage alarms quicker and more efficiently and to optimise the routine and special maintenance of systems. In addition, standards in force and the trend towards energy saving make these systems a key to success and differentiation. Carel solves these requirements by offering field instruments fitted with RS485 interface for connection to local and centralised supervision systems. Depending on the various types of system and requirements, Carel offers: PlantWatchPRO: compact embedded solution for small refrigeration and air conditioning systems up to a maximum of 30 devices. PlantVisor PRO: embedded solution for medium and large systems up to a maximum of 300 devices. RemotePRO: software solution for centralised server in order to manage the system installed quicker and in an optimised manner. Advantages The Carel supervision system use modern WEB technology , maki...

The new range of heaterSteam immerse heater humidifiers includes models producing from 2 to 60 kg/h of steam, and can operate on drinking water or demineralised water. heaterSteam features exclusive technological solutions, such as the electric heaters embedded in corrosion-proof aluminium alloy casting with a large heat exchange surface, and built-in temperature sensors to prevent overheating. For each model there are two variants: basic and “full option”. The full option units have heat insulation around the boiler for maximum energy savings, and Teflon coated heating elements to facilitate the separation of lime scale. The heaterSteam range is available with 3 types of control: H, modulating with built-in controller (from active humidity probe); T, with temperature control (from external probe); C, for simple ON/OFF control . The models from 2 to 10 KG/h have a cylindrical stainless steel boiler, which is easy to remove for cleaning; The larger models, from...

Naturally there is also a DIN rail version of ir33, radically upgraded from its predecessor. In this format, ir33 is completely compatible with the panel version in terms of both software and functions. The hardware features are very powerful: it can control compressors with ratings up to 2 Hp and manage the defrost heater with a 16 A relay. The top-of-the-range version has 5 relay outputs, while all models come as a standard with 2 control probes and 3 digital inputs that can be configured as probes. Accessories:   Infrared remote control : This new accessory is used to directly access the main functions and configuration parameters and to program ir33 from a distance, with a group of buttons that represent n exact copy of the instrument keypad.   RTC : this accessory is used to record detailed data with precision, and set the defrost function according to the real time (and not at intervals, as is usually the case). The RTC ensures that ir33 conforms with th...

Ir33 can operate not only in stand-alone mode, but also in a local network, using an external control (synchroniser), with the advantage of not having to lay additional wiring. This characteristic is particularly useful and effective in the case of applications with multiplexed cabinets, where all the operations of the installation need to be managed in a synchronised manner, above all as regards the defrosts. The defrosts start at the same time on all the sections, and then end independently, in relation to the status of the different sections. When the defrost is completed, the subsequent refrigeration phase is started in synch on all sections. The local network can be used to centralise and synchronise not only the defrosts, but all the functions, on a single display. This means that when pressing the light button, for example, the command is transferred via serial connection to all the boards, which activate the light at the same time. The same applies...

The famous ir32 series of controllers has given rise to the new generation of controllers for refrigeration! The new ir33 includes: infrared remote control, programming key, repeater display, high efficiency LED display, HACCP function, clock, RS485 serial port, defrost management on a second evaporator, all without sacrificing the 4 relay outputs and the 115 to 230 Vac switching power supply! All this in the same dimension as the current ir32! ir33 also manages smart defrosts, resulting in energy savings for the entire intallation. IP65 is guaranteed: the innovative technology used by CAREL to mould the plastic parts allows the protection gasket to be integrated directly into the front panel. In models with an internal clock, HACCP management is standard: this guarantees the temperature control of the foodstuffs stored, in compliance with the requirements of the HACCP system. The parameters are set directly on the instrument: the time and temperature limits envisaged b...

The EVD evolution series of controllers for electronic valves is the latest step in the development of the famous CAREL drivers for superheat control. Compared to the standard EVD, this instruments adds advanced functions and a new user interface that makes it even easier to use and configure. The new TWIN version can independently control two electronic expansion valves, and represents the ideal solution for two circuit units or different control function (i.e. superheat and hot gas bypass). A new graphic display and a simple programming procedure allow the controller to be started by selecting just 4 parameters:   - refrigerant used; - model of valve; - type of pressure probe; - application (chiller, display, cabinet, etc.), selected from the multiple choice menus. EVD evolution is complete with LEDs for controlling the main functions, and can house a removal LCD display for the configuration and monitoring of all the variable. EVD evolution can be...

Carel electronic expansion valves E2V with proportional modulation and excellent technical and functional characteristics, allow an efficient control of refrigeration and air-conditioning units , and consistent energy saving performance. The flow of refrigerant is modulated by nozzle coupled to a torpedo shaped aperture, measuring more than 15 mm long, over a wide operating range. The internal mechanism is fitted on a calibrated spring with ball bearings and guarantees a stable and reliable regulation reducing the risk of failures. E2V is completely manufactured using laser-welding techniques on high-quality materials (AISI 316L), as well as technopolymers. Carel has paid special attention to the smallest details in designing E2V to ensure very high reliability for operations up to 35 bars of differential pressure and up to 45 bars of absolute pressure. Other features include exclusive axial motion of the nozzle aperture and seal gasket in the closing position. By install...

The Carel rTM monitoring system, is used to monitor temperature, humidity, light intensity and pulse counters from energy meters modules, in combination with Carel, supervisory systems or programmable controllers with special software. Benefits Ideal for retrofits on existing systems, being easy to install: -    No electrical connections required; -    Flexible layout in the event of structural modifications; -    Simple installation and maintenance; -    Existing controllers do not need to be replaced, as the system is completely independent and can be integrated into any installation; -    Simplifies monitoring of the installation (including over remote connections). In the event of alarms, operating status can be notified via SMS, email, FAX; -    Supervisory systems can be customised reports and data log files; Composition -    Battery or mains powered sensors for measurin...