Since January 1st, 2019 the company UTEK srl has been incorporated by the company CLA srl
More comfort
Lower operating costs
Greater value through time
Less impact on the environment
The Controlled Mechanical Ventilation is a technology developed when it began to design buildings with less energy consumption: thermal insulation quality, casing airtight, hermetically sealed windows and minimal thermal bridges significantly lower energy requirements, but the worsening environmental sanitation (invisible pollution and bacteria). Without the air exchange inside and the expulsion of pollutants, creating problems of condensation and mold on the walls, stagnation of gas and smells … the house “is not breathing”.
We spend more and more time in closed spaces (an estimated 90%) and the air we breathe contains suspended pollutants inside, and not perceived (materials used in building), and external (smoke, smog, CO₂, bacteria and allergens), especially in areas metropolitan or near factories. A poorly ventilated room determines a moisture content higher, which favors the formation and concentration of molds, mites, fungi, bacteria and pollutants. Opening the windows in air-conditioned environments is a waste of energy and allows noise to enter …
The solution is a system of “forced” air change working 24 hours a day, all year round, which replaces the manual opening of the windows, with key differences: ability to accurately control the flow rates limiting replacement to the minimum necessary, so energy waste, greatly improving air quality (impossible with the opening of the windows) … in other words high level of comfort with low energy demand!
In a residential installation, the air is sucked from the utility rooms (kitchen, bathrooms, laundry) with its load of moisture, harmful substances and odors, filtered, and passed through the heat exchanger and finally expelled outside. In the high efficiency heat exchanger, nearly all the heat is transferred to the outside fresh air which is sucked, filtered and treated (depending on the season heated, cooled or dehumidified) and entered in the rooms (sleeping and living rooms).
More efficient Mechanical Ventilation plants consist of a dual-flow heat recovery unit (expelling stale air and sucking fresh air, centralized and automatically managed, air flows ever in contact, recovery from stale air expelled) and the air distribution system (pipes, plenum, inlets, etc.); in the case of more apartments, the system can be with INDIVIDUAL heat recovery (each fully indipendent), COLLECTIVE (passive recovery and centralized ventilators) or CENTRALIZED (one large unit serving the entire building). The heat recovery allows to reduce considerably the size of the other devices intended for the production of heat and cold supply.
Some UTEK units meet the requirements of the highest standards in the field of energy certification of buildings, including those of the KlimaHouse Protocol and passive houses.
The European Union has set ambitious targets, named “20 – 20 – 20″, with regard to climate and energy policies, that individual states must achieve by 2020:
The building sector represents 40% of total energy consumption, a priority within the objectives 20 – 20 – 20: in relation to the energy performance of buildings, has been issued Directive 2002/91 / EC (EPBD Energy Performance of Buildings Directive), subsequently replaced by Directive 2010/31 / EU with the task of setting the minimum requirements for the construction of new buildings and major renovations of existing buildings.
“Nearly zero energy Buildings” or NZEB will become the standard for construction of new buildings within the 31.12.2020 (for buildings occupied and owned by public entities the deadline is 31.12.2018): buildings with high class energy and passive buildings. Passive buildings – concept applies to all types of buildings, not only residential – are buildings that cover most of their energy needs (heating, cooling, sanitary hot water, ventilation and lighting) with minimal energy source, i.e. without any facility “conventional”, but using alternative sources. The dual-flow Controlled Mechanical Ventilation is essential in the new buildings.
Thanks to operating costs almost insignificant, for the entire life of the property; recovery of the energy contained in the exhaust air (energy thrown by opening the windows) and right amount of air exchange (not possible with the opening of windows)
Forced ventilation allows you to put in fresh air, filtered, under the right conditions, eliminate pollutants and harmful molds and odors ... also do not need to open the windows (external noise): the comfort of living is improving in parallel with the progress (technology, materials, regulations).
The ventilation system improves the building's energy class, preserves the value thanks to the elimination of moisture, mold, etc.; the energy performance certificate will become increasingly important in the business of selling or renting of a building or a real estate unit
Less dependence on traditional fuels, the availability of which is declining and costs increasing
Mechanical Ventilation founds commonly application in single and multi-family residences, offices and new commercial complexes, schools, health clubs and gyms, hotels and restaurants, museums, cinemas and theaters, production areas, supermarkets. The principle of operation is similar in all applications. The machine can be placed on the floor, behind the wall or in the ceiling; the system is invisible, except for the grills and vents of intake and return air in the rooms.
NIn the heat exchanger, the outside air (colder) to be delivered to the rooms is wormed by the foul air sucked from the service rooms, worm and foul air.
In the heat exchanger, the outside air (warmer) to be delivered to the rooms is cooled by the air sucked from the service rooms, foul air but at a lower temperature than the outside.
During the central hours of winter days particularly warm you can take advantage of free-heating mode; the outside air (warmer than the internal one) is introduced directly in the rooms without passing through the heat exchanger.
The outside air (fresh) is delivered directly in the rooms without going through the heat exchanger, free-cooling mode (by-pass system, automatic opening / closing), while the hot air is expelled directly without giving heat.
