, , , , , , , , , Air Handling Unit Wholesalers Other Refrigeration Equipment & Parts An Air Handling Unit (AHU) is used to condition and circulate air as part of a heating, ventilating, and air-conditioning system. The basic function of the AHU is take in outside air, condition it and supply fresh air to a building. All exhaust air is discharged, which secures an acceptable indoor air quality. Depending on the required temperature of the conditioned air, the fresh air is either heated by a recovery unit or heating coil, or cooled by a cooling coil. In buildings, where the hygienic requirements for air quality are lower, some of the air from the rooms can be re-circulated by a mixing chamber, and result in significant energy savings. A mixing chamber has dampers for controlling the ratio between the return, outside, and exhaust air. The AHU is a large metal box containing separate ventilators for supply and exhaust, heating coil, cooling coil, heating/cooling recovery system, air filter racks or chambers, sound attenuators, mixing chamber, and dampers.

AHUs connect to ductwork that distributes the conditioned air through the building, and returns it to the AHU.reviews of carrier ac units A heat/cooling recovery exchanger is normally fitted to the AHU for energy savings and increasing capacity.modern window ac unit An AHU designed for outdoor use, typically on roofs, is also known as a rooftop unit (RTU).heat pump ac unit cost > Multi-bloc air handling units > Compact dual flow air handling units > System control and supervision > Easy Smart CIATControl CIAT launches its newest range of AHU CLIMACIAT™ The CIAT geothermal product range evolves An error occured while logging in. Please try again later. Systemair around the world You are here: Systemair - India

Here you will find information about the Systemair Group. Use the on-line product selector Volume 41, Issue 10, October 2006, Pages 1291–1298 Estimating airflow rates in air-handling units from actuator control signals Received 18 August 2004, Revised 19 April 2005, Accepted 17 May 2005, Available online 5 July 2005The design and accuracy of simple airflow estimators that are based on actuator control signals are investigated. A computer simulation of the air-circuits of a variable-air-volume air-conditioning system is developed and validated experimentally. The simulation is used to examine the relationship between the supply airflow, the extract airflow and the inlet airflow, and the control signals for the fans and the mixing-box dampers in the air-handling unit (AHU). Based on the simulation results, linear estimators are proposed for the estimation of airflow rates in AHUs. The accuracy of the linear estimators, which are calibrated using measured data collected from the air-conditioning system during testing and balancing, is examined using data collected from a full-scale air-conditioning system.

The results show that the estimation errors are less than 8% of full-scale.Copyright © 2005 Elsevier Ltd. Vertical Air Handling Unit (FXTQ_PAVJU) Concealed, Powerful, Compact, Comfortable The vertical air handling unit is designed for use with all Daikin VRV systems, allowing more flexibility and combination possibilities. With a capacity range from 12 to 54 MBH and both upflow and horizontal right installation possibilities, the unit is ideal for both residential and light commercial applications. Reduced installation time with integrated Electronic Expansion Valve and Printed Circuit Boards Improved application flexibility with the ability to mix and match with other Daikin indoor units on the same system Wider application range with dual voltage 208-230V/1ph/60Hz power supply Reduced piping cost with smaller piping diameters Only up flow and horizontal right installation is permitted Improved user comfort with 2 selectable fan speeds (H and L)

New fan "Auto" logic allowing the unit to be commissioned where the fan operation will cycle on and off with the load The ECM fan motor as standard contributes to the increase in energy efficiency, reduction in sound and increased ESP (up to 0.5" W.G.) Ideal replacement for traditional fan coils or vertical stack units New construction or replacement click on image to expand The FXTQ_PAVJU represents an improvement in electric heater options and control logic versus previous units: Wide line up of electric heat (field installed) options from 3kW to 20kW Integrated KRP1 function to minimize cost Electric heater operation in combination with heat pump operation (boost) is now possible Enables connection of 3rd party air handling units (with DX coil) to Toshiba light commercial, Digital and Super Digital outdoor units and Toshiba VRF outdoor units using BMS Control DI/SDI Air Handling Unit Application Enables connection of 3rd party air handling units (with DX coil) to Toshiba light commercial, Digital and Super Digital outdoor units .

VRF Air Handling Unit Application Enables connection of 3rd party air handling units (with DX coil) to Toshiba VRF outdoor units.Established in 1989, in New Delhi, India, ZECO today has come a long way to become world class manufacturer of air management system, delivering reliable and superior quality products. With incredible expertise in design and selection of air management system, the company is serving the customers according to the application with innovative technology, high quality and cost effective solutions. The company is continuously meeting the demands of the changing and challenging market environment around the globe. It is significant to note that once they’ve found us, clients tend to stay with ZECO for the long term, because of the distinct level of services we offer. Interpreting different needs wherever and whenever they may be needed and providing astute feedbacks while you make your decisions, we are powerful allies you’d never let go. Harmonizing seamlessly into your work culture, we