The requested URL /en/Certification_Programmes/Programme_Descriptions.php?lg=en&rub=03&srub=01&select_prog=AHU was not found on this server. Multi-purpose air handling and conditioning units The design solutions, drawing on the company’s knowledge and experience, fully meet the expectations of our Customers and respond to the market demand. As a result, VTS offers versatile, reliable and energy-efficient units. Building of any capacity - from restaurants, through trading centres to huge production plants. Operation in all climatic zones from -40°C to +70°C. All kinds of buildings - residential, commercial, industrial. VENTUS VS10 - VS650 AHUsbring about benefits High performance direct drive PLUG type fans. Light structure - frameless casing of hight class tightness. Three delivery methods available - in packages, in sectionsor as a ready-to-install device. High energy recovery rate - up to 85%. Smooth adjustment of the air flow rateas a STANDARD feature.

Optimal selection of the unit size accordingto a building cubature. Reliable control system applications. Energy recovery rate up to 85%! Energy recovery systems ideally suited to any climate conditions. Minimal airstreams exchange in the energy recovery blocks. Sensible and latent heat recovery. VTS Group offer includes: rotary regenerator, cross-flow heat recuperator and run-around coil. Exceptional rigidity and integrity of the AHU A unique C-shape casing ensures excellent integrity and rigidity of the AHU.Highest possible leak-proof design. highest casing rigidity rating Watch movie Casing classes High performancedirect drive PLUG fans Silent operation thanks to innovative airfoil blades with unique trailing edge shape. Smooth performance regulations using VFD technology. High efficient direct drive - elimination of V-belt transmission. Stable operation, easy controlof VENTUS AHUs Carefully selected and programmed control applications enable professional management of air ventilation and conditioning circuits.

User Interface – for easy AHU status monitoring and management. Fan drives status remote set-up and monitoring. Suited for integration with BMS systems. The structure and operating parameters of VENTUS VS10 - VS650 AHUs meet a number of requirements and standards which is confirmed by international certificates. VTS guarantees excellent product quality and highest level customer service. 2 weeks – delivery of standard AHUs. 24h/7days – VTS Service guarantees the shortest response timeon the market. Up to 5 years of Warantee. User friendly on-line AHU selection tool certified by EUROVENT Select the AHU you need in 60 seconds. Selection parameters are certified by Eurovent. Contact with Technicaland Commercial AdvisorThe definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it is "A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air...."The AHU is used to control the following parameters of the space.

There are basically two types of air handling unit that are in used and they are the "Draw-Through" or "Blow-Through". In the Draw-Through type, the fan pulls the air through the mixing box, filters and cooling coil before discharging it from the fan outlet to the space to be conditioned or to the ducting network. The design can be vertical or horizontal. In this case, the section before the fan has negative pressure.In the Blow-Through type, the fan blows the air through the mixing box, filters and cooling coil before discharging them to the space being conditioned or the ducting system. how home ac units workIn this case, the section after the fan has positive pressure.ac thru the wall unit An air handling unit where (1) is the supply air,  (2) fan section, (3) vibration isolator, (4) cooling coil, (5) filter and (6) mixed air duct.central ac unit for mobile home

Components of Air Handling UnitHere are some of the air handling unit components that may be contained in the equipment.The housing that contains all the other components of an AHU is usually make of metal, some are painted to prevent corrosion.In sections where the fans and the coil are located, 1-2 inches of polyurethane foam or PU is used to insulate them to prevent the condensation on the panel. Drain pan is also used as a precaution in the event of condensation of water.Centrifugal fan is used to circulate the air to the various parts of the sections in the building. The typical types of fan available are Backward Inclined, Backward Curved, Forward Curved and Airfoil.The selection of the fan will depend on the air volume and the static pressure required of the system. Usually, the designer of the system will use a specialized software to do this selection. In order to reduce the effect of vibration on the panel, the motor and the fan are usually installed on the vibration isolator except when the drive assembly is external to the fan casing.

In recent years, the use of variable air volume (VAV) system is becoming more popular as the volume of the air being discharged can be varied depending on the load condition. If the load is high, the fan speed will be higher and if the load is lower, the speed of the fan will be lower. The speed of the fan is varied by using frequency inverter instead of conventional motor such as PSC motor. Frequency inverter provides better control of the fan speed as a whole range of fan speed from super low to super high can now be utilized based on the load conditions required. This technology has enabled better use of energy and is in tandem with the move to go for greener energy.Cooling Coil is used to cool and dehumidify the air. Both DX (direct expansion) cooling and CW (chilled water) cooling coils are available for use depending on the system design. These coils are arranged in rows with different fin spacing. Aluminium fins and copper tubes are used in the design of the coils. The corrosion resistance hydrophilic fins are also used due to its lower cost and lower resistance to the air velocity.

Filters are to remove particles and contaminants of various sizes from the air. The type of air filter being used will very much depend on the application of the system.Panel Filter is a flat and rectangular in shape and provides a minimum low efficiency filtration which is acceptable to the air conditioning industry. The high velocity filter is arranged vertically whereas the low velocity filter is arranged in V shape. Typical air velocity that moves through the filters is in the range of 2-3 m/s.HEPA Filter is very efficient and is able to achieve efficiencies up to 99.97%, removing minute particles and airborne bacteria from the air. It is usually used in clean room applications such as semiconductor production floor, operating theaters and critical processes.Electrostatic Filter is used to remove particles from the air by using highly charged electrodes that ionized the air. Bag Filter is able to remove dust particles and is thrown away after use. Roll Filter is used for high velocity filtration where the used part is rolled up automatically/manually.