The 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. In this case, the section after the fan has positive pressure.

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. Components of Air Handling UnitHere are some of the air handling unit components that may be contained in the equipment.car ac repair kendall flThe housing that contains all the other components of an AHU is usually make of metal, some are painted to prevent corrosion.wall ac unit freonIn 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. car ac repair reno nvDrain 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.During winter, the humidity level of the air can be low hence causing discomfort to the occupants. The humidity of the air is increased by using the humidifiers. Here are the commonly used humidifiers:Spray Type has a header and spray nozzles that spray water with a pressure of 15 psi or more.Steam Pan Type has a pan and a heating coil to heat up the water of the pan. The evaporation of water caused by the heating will increase the humidity level of the surrounding air.Steam Grid Type has tiny holes on the pipe to distribute the steam that flows through it. In this case, the water that is heated up to produce the steam to be supplied to the grid is conditioned to prevent odor being discharged to the room.

This box has air inlets that is attached to the dampers. This is the place where the outside air and the return air are mixed to provide the correct proportion of air to be distributed to the space that is to be conditioned. Back To Air Handling Unit Home Page Our offered and manufacture larged ranges of these Air Filters & Industrial Air Filter those are used for removing the dust and moisture from air and gas. These are widely used in many industries which are accurate and fast in functioning. We are offering these by the usage of optimum quality material which are long service life and accurate in functioning. They are provided based on the diverse needs of the clients. Dry Metallic Air Filters: Give efficiency of 80% down to 15 to 20 microns CAI Oil Wetted metallic Air Filters: Give efficiency of 90% down to 10 to 15 microns Ask for PriceDepending upon the needs and demands of the consumers we offer a high range of Pre, Fine, Hepa Filter products to our honoured clients.

We offer these filters which are used for filtration of dust and moisture accurately. These are available at clients required sizes and affordable prices. Our filters are widely used in food, pharmaceutical, paint shop, hospitals, chemical, Gas turbine, Aerospace etc. Our business is highly involved in offering a wide range of reliable Pre Fine HEPA Filter to our valuable clients. These are available in different sizes based on the requirements of the clients. Our range is tested by our experts on various parameters to offer an unmatched range to our clients. Clients can avail these at reasonable prices in the industry. Sizes:All sizes available in GI/MS Cassette/Flanged constructionAvailable in flow capacity range up to 2000 CFM Ask for PriceOur organization is in the leading position of manufacturing and supplying HVAC Air Filters that are fabricated using the effective quality of material that is procured from the consistent and trustworthy vendors of the market. It is used in several industries to distil the dust particles.

These are available in various sizes and lengths as per the client requirement. It is widely demanded for best efficiency, easy to install, sturdy and dependable.Frames offeredMS PaintedG.I.AluminiumWoodenCartonStainless SteelPVCTested ThroughAshrae 50-76 (equi DIN 24185)BS6540/2831IS/7613Federal 209 DHepa Filters can be DOP Tested and certified as per various international StandardsApplications Air conditioningVentilationDust control systemsClean roomsHospitalsFoodPharmaceuticalPaint shopAtomicNuclearElectronicChemicalGas turbineCompressor intakeAerospaceBiologicalSynthetic fiberPlasticIndustryPhotographicComputer etc. SpecificationsRatingEfficiencyMediaPre-10,20,50 micronUpto 80-95%Metallic, Synthetic, HDPEFine-3, 5 micronUpto 99%Synthetic, HDPEHepa- 0.3 micronUpto 99.97%Glass FibreDetails:Types : Pre, Fine (microvee), Hepa (absolute), Ulpa, Mini pleat, Bag (Pocket), Carbon etc.Frame : MS Painted, G.I., Aluminium, Wooden, Carton, Stainless SteelTests : Ashrae 50-76 (equi DIN 24185), BS6540/2831, IS/7613, Federal 209 D. Hepa Filters can be DOP Tested and certified as per various international standards.

Ask for PriceOur organization is in the leading position of importing and supplying AHU Filters that are fabricated using the effective quality of material that is procured from the consistent and trustworthy vendors of the market. Frames offered MS PaintedG.I.AluminiumWoodenCartonStainless SteelPVCTested Through Ashrae 50-76 (equi DIN 24185)BS6540/2831IS/7613Federal 209 DHepa Filters can be DOP Tested and certified as per various international StandardsApplications Air conditioningVentilationDust control systemsClean roomsHospitalsFoodPharmaceuticalPaint shopAtomicNuclearElectronicChemicalGas turbineCompressor intakeAerospaceBiologicalSynthetic fiberPlasticIndustryPhotographicComputer etc. SpecificationsRatingEfficiencyMediaPre-10,20,50 micronUpto 80-95%Metallic, Synthetic, HDPEFine-3, 5 micronUpto 99%Synthetic, HDPEHepa- 0.3 micronUpto 99.97%Glass FibreDetails: Types : Pre, Fine (microvee), Hepa (absolute), Ulpa, Mini pleat, Bag (Pocket), Carbon etc.Frame : MS Painted, G.I., Aluminium, Wooden, Carton, Stainless SteelTests : Ashrae 50-76 (equi DIN 24185), BS6540/2831, IS/7613, Federal 209 D. Hepa Filters can be DOP Tested and certified as per various international standards

Pre, Fine, HEPA FilterAll sizes available in GI/MS Cassette/Flanged construction· Available in flow capacity range up to 2000 CFM Ask for PriceAvailable with us is a qualitative range of HVAC Air Filters, which is required for removing dust and moisture from air and gas in different stages in case of Air handling units, Air Washer, Package Units, Clean room etc. Designed to excellence, the HVAC Air Filters manufactured by us are supplied in various specifications as per the client’s requirements. MS PaintedG.I.AluminiumWoodenCartonStainless SteelPVCTested Through Ashrae 50-76 (equi DIN 24185)BS6540/2831IS/7613Federal 209 D Hepa Filters can be DOP Tested and certified as per various international StandardsApplications Air conditioningVentilationDust control systemsClean roomsHospitalsFoodPharmaceuticalPaint shopAtomicNuclearElectronicChemicalGas turbineCompressor intakeAerospaceBiologicalSynthetic fiberPlasticIndustryPhotographicComputer etc. RatingEfficiencyMediaPre-10,20,50 micronUpto 80-95%Metallic, Synthetic, HDPEFine-3, 5 micronUpto 99%Synthetic, HDPEHepa- 0.3 micronUpto 99.97%Glass Fibre

Ask for PriceFilter Elements of Housing & EquipmentsRound TypeFrame MS Painted, G.I., Aluminium, Wooden, Carton, Stainless SteelType Flanged/Cassette (Box)Tests Ashrae 52-76 (equi DIN 24185), BS 6540/2831, IS/7613, Federal 209 D. Hepa Filters can be DOP Tested and certified as per various international standards. Applications Air conditioning, ventilation, dust control systems, clean rooms, hospitals, food, pharmaceutical, paint shop, Atomic, Nuclear, Electronic, chemical, Gas turbine, Compressor intake, Aerospace, Biological, Synthetic fiber, Plastic Industry, Photographic, computer etc.PERFORMANCEInitial pressure drop 0.18 Bar @ 7 Bar Preesure.Design collapse differential preesure : 6-7 Bar. Maximum operating temperature: 160 Degree CEFFECIENCYBetween 2-4 ppm oil carry over depending on size and design style COOLANTS OILAI separators work equallly well with mineral and ester based oils CONSTRUCTION Bright steel zinc plated with Corrosion resistant welding. Borosilicate / Glass Fiber in wrapped or Pleated Media Construction & polyster FleeceAny make and size of Air Filter can be developed on order.

Panel Type:-Available with us is a qualitative range of Air Filters, which is required for removing dust and moisture from air and gas in different stages in case of Air handling units, Air Washer, Package Units, Clean room etc. Designed to excellence, the Air Filters manufactured by us are supplied in various specifications as per the client’s requirements.Frames offeredMS PaintedG.I.AluminiumWoodenCartonStainless SteelPVCTested ThroughAshrae 50-76 (equi DIN 24185)BS6540/2831IS/7613Federal 209 DHepa Filters can be DOP Tested and certified as per various international StandardsApplicationsAir conditioningVentilationDust control systemsClean roomsHospitalsFoodPharmaceuticalPaint shopAtomicNuclearElectronicChemicalGas turbineCompressor intakeAerospaceBiologicalSynthetic fiberPlasticIndustryPhotographicComputer etc. RatingEfficiencyMediaPre-10,20,50 micronUpto 80-95%Metallic, Synthetic, HDPEFine-3, 5 micronUpto 99%Synthetic, HDPEHepa- 0.3 micronUpto 99.97%Glass FibreDetailsTypes : Pre, Fine (microvee), Hepa (absolute), Ulpa, Minipleat, Bag (Pocket), Carbon etc.