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...

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...

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...

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...