iACS - Experts in AHU Controls

Compressed air humidifiers are the ideal humidification solution whenever a compressed air supply is available, as is the case in many industrial applications, even if humidification systems are often fitted with a dedicated compressor. The humidifier essentially consists of a cabinet fitted with electronic controller that, using two independent connection pipe networks, supplies the spray nozzles with compressed air and water at the ideal pressure for instant operating conditions. The units can be installed inside an AHU or directly in the room where humidity needs to be controlled. The greatest advantage of these atomisers is the minute dimensions of the droplets produced and their thorough mixing in the compressor air that, due to its speed, distributes the aerosol in the room and consequently allows quick absorption. These units can therefore be readily used for direct cooling in rooms, and are ideal for the textile industry, wood and paper processing, and storerooms, wh...

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...

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...

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...

All the CAREL immersed electrode humidifiers feature sophisticated control software that automatically adapts the operating parameters to the characteristics of the water; nonetheless, the optimum balance between duration, variation of steam production and speed of response depending on the type of water and the power supply can only be achieved by changing the shape and the position of the electrodes. For this reason, the Carel immerse electrodes humidifiers today feature the widest choice of cylinders , with specific electrodes for water with conductivity between 125 µS/cm and 1250 µS/cm, for capacities between 1 and 65 kg/h, and for power supply voltages between 200 V and 575 V. This extraordinary range of cylinders is the result of years of research and tens of thousands of hours of tests in the Carel Humidification Laboratory under the widest possible range of uses. This ensures the right solution in every circumstance. All the humiSteam cylinders feature large galvanised elect...

humiSonic , installed on fan coils, is the ideal solution for coupling accurate control of ambient humidity with common temperature controls (guaranteed by fan coils). The combination and accurate management of these two fundamental features of the air assures that comfortable conditions in the home or commercial environment can be reached and maintained. Energy Saving Ultrasound humidification is adiabatic, requires very low power consumption compared to steam solutions (40W to atomise 0.5 kg?h of water). This important feature makes humiSonic an "Energy Saving" solution in line with modern energy saving expectations. Easy installation and maintenance Thanks to the compactness of its design humiSonic is easy to install in new generation fan coils and at the same time can be retrofitted on existing units! The maintenance of humiSonic consists only in periodic replacement of the transducers (once a year) and, thanks to the ergonomic design, this does not have ...

The AHU applications are characterized by a great range of plant solutions with different integration levels. Carel, leader on the regulation in HVAC/R world, thanks to the ten-year experience on designing and producing electronic controllers , humidifiers and accessories, offers the most complete solution range for this application. The modular structure of the controllers, the different humidifiers available and the complete range of accessories let you set any kind of installation, which increasing integration leaves up to the complete supervision of the plant to reach the absolute reliability and the maximum energy saving. The system approach joins with the flexibility of the solutions, both hardware, i.e. architecture and components, and software, starting from the standard up to the complete customization of the application software thanks to 1tool programming tool. Flexibility : I/O chip technology means all the most common types of sensors can be read: the signa...

Ultrasound humidifiers feature a small water storage tank and piezoelectric transducers installed at the bottom of the tank. The surface of the transducer oscillates at a very high speed (1.65 million times per second), so as to prevent the water from moving (the water cannot keep up with the oscillations of the transducer) due to its mass inertia. As a consequence, a column of water is generated above the transducers. During the negative amplitude of the transducer, an instant vacuum is produced because the water cannot follow the very fast transducer movements. The cavity created allows the production of bubbles, which are pushed to the edge of the water column during the positive amplitude phase, where they collide. During this process, very fine particles of water are atomized on the edge of the column of water. Due to the sound waves, cross waves are produced directly underneath the surface of the water, in the center of which very small water droplets are separated thus g...

Immerse heater humidification is becoming increasingly required in work specifications where: Humidity must be controlled precisely (museums,   laboratories, clean rooms); Water quality is not constant or is problematic (for example, aboard ships); Periodical maintenance needs to be minimised (using demineralised water).      Immerse heater humidifiers, unlike immerse electrode units, can operate on demineralised water, as they do not exploit the electrical conductivity of the water. Periodical maintenance can therefore be greatly reduced, due to the minimum formation of lime scale. Weighing against this, the resistive elements must always be completely immersed in the water, to avoid overheating, unlikely the situation with electrodes, in which the water level is adjusted to modulate the flow-rate of steam. The operation of an immense heater humidifier then requires water level sensors to ensure complete immersion of the electr...

Carel's extensive experience in the humidification sector has been used to develop the gaSteam range of gas-fired humidifiers, exploiting an energy source that is more economical then electricity. The humidifiers now have updated controllers, and the smallest model has now been upgraded to 45 kg/h (still below the 35 kW limit). The range thus now features the 45 kg/h, 90 kg/h and 180 kg/h models. Carel gas-fire humidifiers can run on both natural gas and LPG: the changeover is made by simply modifying a number of parameters, without the need to replace any parts. Cost effectiveness To generate 1 kg of steam at atmospheric pressure, considering all the various factors, requires around 750 Wh of energy, either electrical or from other sources. One of the main factors when choosing solutions in the field of isothermal humidification is therefore energy cost, particularly for heavy-duty applications. Gas can be considered an ideal solution in terms of energy source, ho...

humiDisk is a small yet sturdy humidifier that uses a spinning disk to atomise water and transform it into millions of very small droplets that, blown by a built-in fan, are introduced into the environment, where they evaporate, humidifying and cooling the air. Very low power consumption humiDisk is a simple, economic and easy to maintain humidification system, with an energy consumption of just 220 W for 6.5 kg/h of capacity (31 W for the 1.0 kg/h model). Guaranteed Hygiene The water tank inside the humiDisk contains just 0.055 litres of water, which is atomised, at maximum capacity, in just 30s for the 6.5 kg/h model and 3 minutes for the 1 kg/h model . The water in the tank is therefore changed very rapidly, meaning the humidifier substantially works with non-stagnant running water, so as to guarantee the best hygiene conditions. Water used humiDisk can operate on both mains water or treated water. The quantity and quality of the minerals dissolved in the wa...

Atomiser for evaporative cooling optiMist is an evaporative humidifier and cooler that atomises water into very small droplets which, by evaporating spontaneously, extract heat from the water, atomizing it successively through special nozzles. The sophisticated control system combines the action of an inverter, which controls speed and therefore pump displacement, with that of 2 solenoid valves that activate only the nozzles necessary. This allows the system to always work at the best pressure for atomizing the water, within a wide flow rate range. The cooling effect of the air is due to the spontaneous evaporation of the water droplets: the change of state from liquid to vapor takes place at the expense of the energy in the air, which cools down as a consequence. optiMist is a complete system, which includes humidification and evaporative cooling in a unique solution, which can be used to handle air in an AHU (air handling unit), and to humidify the flow air...