Airtech Systems

 

Airtech`s Double Skin Air Handling Units are one of the most versatile and premium products in HVAC. Now, Air Handling Units play an important role in overall performance of HVAC system. In view of all theoretical & practical problems, Airtech has developed double skin units suitable for multiple applications. Self-supporting extruded aluminum framework with injected PUF insulated panels provides strength & rigidity. Pre-coated / Powder-coated Airtech AH Us are attractive & unique. 

Multifunctional AHU adopts advanced modular structure, its particular design for inner frame and insulation panel enables the lowest energy wastage and best prevention of dewing. It is largely used for industrial air conditioning system, like electronics, instrument, mechanics, metallurgy, chemicals, textile, pharmacy, foods, tobacco, transportation facility, energy stations etc., can also be used for comfortable air conditioning system in huge buildings, like hotel, restaurant, theatre, shopping mall, gymnasium. This series product can handle air flows from 3000 CMH to 200000 CMH, and several sections are available for selection

 

 

CONSTRUCTIONAL FEATURES OF AHU BODY

Frame:  The unit adopts high strength composited aluminum alloy frame , the insulation materials are used between the frames to prevent cold bridge. These sections are known as Thermal Break Sections.

Panel: Double skin structure, inner and outer panel are all factory painted steel , with sandwiched insulation materials PU foam. This structure ensures the best performance on insulation, strength, rigidity, cleanness and sound isolation with no condensing water on the outer panel. Airtight materials are used at connections between frame and panel to prevent air leakage and efficiency lost. Panels can be galvanized steel, stainless steel or other materials according to different application.

Insulation Plate :  All panels` insulation plate are PU foam. Its density is 40-48kg/m³, the thickness can be 25mm/ 50mm/ 65mm

Access Door :  The access door is of specially made structure, can prevent dewing. The door knob can press the door tight . The positive pressure part of access door is inside opened, and the negative pressure part is outside opened, which ensures the low leakage of the unit.

Fresh/return/exhaust air mixing section :  We use bisect damper (can be manual or automatic according to actual requirement), with little pressure drop and easy maintenance.   FILTER SECTION:   The filters (primary and secondary) are produced according to international standard, with high efficiency, low air pressure drop, stable performance and universe application, and can be used repeatedly. Filters are fixed to counter frames with sealing gasket which prevent any leakage. Accessories of filter section: pressure meter, can be equipped according to customer`s requirement.   COOLING COIL SECTION:   The coil is made of quality copper tube with aluminum fins, underside is the declined drain pan for the condensing water. High efficiency cooling and heating coils manufactured as per customer design & application requirements. Galvanized steel or stainless steel drain pan is available. Electric heater and spray type de-humidifier is provided as per design & application requirements. CWC coils are available in 1/2", 5/8" & 3/8" O.D. Copper tubes sizes. DX coils are available with 1/2", 5/8" & 3/8" O.D. Copper tubes sizes with brass distributors with solder type connection.   FAN SECTION:   Good brand centrifugal fan with forward/ backward curve design having static pressure from 1” to 6” and above is used, which has superior air drive, precise running, wide efficiency extent, low vibration, long life. The designed life of fan bearing is 131000 hours.    The 3 phase motor drive the fan by the belt. And the fan is equipped with the spring and rubber vibration isolators underside, so with little vibration, low running noise and reliable quality.   Rigid fan base: the fan and the motor are installed on the same steel frame, so the belt can be adjusted easily.    Vibration isolator: to attenuate the vibration caused by the fan, the isolator is set between the base and the fan frame.   OPTIONAL FEATURES:   Electrical Heating Section It is composed of SS tube and SS fins or PTC, with reliable performance and easy maintenance.   Steam Heating Section The material is always copper-aluminum, steel-steel, rolled or spiral type, with cold rolled and painted steel frame. The highest steam pressure available is 1.0Mpa.   Humidifying Section The available humidifiers are high pressure atomizing humidifier, dry steam humidifier, wet membrane humidifier, electric steam humidifier, electrode humidifier. Normally we use high pressure atomizing humidifier, dry steam humidifier, wet membrane humidifier. Dry steam humidifier is for the place which has the steam source, wet membrane humidifier has better efficiency than high pressure atomizing humidifier.   Automatic Control Devices:   To save energy in long time, some automatic control devices can be installed according to customer’s requirement, such as VFD (Various Frequency Devices), Fan Starter, Programmable Control, Central Control, Fully Automatic Control. Also, the communications integrator and kinds of protocol are available to interconnect with BMS (Building Management System) and realize internet group control.

 

Airtech’s AHU with inbuilt Dehumidifier comprises of desiccant rotor, process blower motor, reactivation blower motor, reactivation heaters, steam coil, gear reduction unit, filters, compact electrical panel with control circuit, etc.  These units are custom made as per the clients requirement.

APPLICATIONS:

Pharmaceuticals Chemicals and Petrochemicals Electronics Food Supplements Photogenic Films Sand Blasting Operations Single Skin Air Handling Units:   Airtech’s Single Skin Air Handling Units adopts quality fan and motor which have been statically and dynamically balanced, equipped with floating isolator for vibration. These enable this series AHU with low level noise, strong air flow, high efficiency, reliable performance and easy installation.  The casing adopts single skin structure of 1.2mm galvanized steel, can be other structure, material or with coated colour according to customer`s requirement.   Large volume fan coil units:   Airtech’s Large volume fan coil unit can handle air flow from 2500 to 6000 CMH. Small cubage, light weight, easy installation, stable performance, large air flow and low noise are its main features. It is terminal device for central air conditioner, usually used in horizontal hidden space of hotel, shopping mall, office building, hospital and corridor. Its power, air flow, cooling capacity and functions is in intervenient range of standard fan coil unit and air handling unit. It is the good choice of some application which doesn’t require high external static pressure, with good cost performance and return air box for option.   AIR CONDITIONING SYSTEMS- DX CONDENSING UNITS/  CHILLED WATER SYSTEMS:   DX Air Cooled Condensing Units (Outdoor Units): Double Skin Air Handling Units are hooked up with outdoor DX condensing units by using interconnecting copper piping and various valves to control the flow of refrigerant gas. DX units are available in various tonnage ranging from 1.5 TR to 34 TR in different combinations.   Air / Water Cooled Chillers: Double Skin Air Handling Units are hooked up with Air/ Water Cooled Chillers by using M.S. / U PVC Piping with set of 3-way mixing valves, butterfly valves, strainers, pump sets, cooling towers, etc. Chillers are available in various tonnage ranging from 25 TR to 1000 TR in different combinations. Air and Water Cooled Chillers are used depending upon various applications.   AIR FILTERS – PRE-FILTERS, MICRO-VEE & HEPA FILTERS:   Pre Filters: Airtech`s Pre Filters find application where high efficiency cleanable panel is required Viz. LAF benches/ Split Units/ Packaged Units / Fan Coil Units/ Air Handling Units and also as Pre filters to Fine filters.   Features: Media: 3 stage NWP HDPE Combo/ Plain HDPE Plies/ Needle Punched Media Separators: M.S. / G.I./ Aluminium rods/ Spacers Casing: M.S. Stove enameled/ GI/ Aluminium Anodised Filters are available in any size and thickness from 12 mm to 75 mm and can be used from Fan Coil units to Air Handling Units.   Micro- Vee Filters:   Airtech`s Micro-Vee filters are available in Box/ Flange type, construction are used as prefilter to Hepa and also in H.V.A.C. AND Industrial ventilation where High Efficiency is required.   Features: Media: 3 stage NWP sandwiched between 2 layers of HDPE / Needle Punched Media- Pleated for extended Surface Area. Separators: M.S. / G.I./ Aluminium rods/ Spacers Casing: M.S. Stove enameled/ GI/ Aluminium Anodised Gasket: Natural Rubber. HEPA Filters (Absolute) - High Efficiency Particulate Air filters: Airtech`s Absolute HEPA filters are available in different designs and construction depending on the application.   Construction: Airtech`s Hepa Filters are available in anodized aluminium frames.  The filter media is glass micro fiber filter paper folded around corrugated aluminium / PVC separators potted on the sides with the help of special self leveling epoxy compound, preventing by pass of air between filter pack and the sturdy frame. A closed cell sponge rubber on both the face provides a positive a positive ceiling on installation whether In-terminal or plenum frames.   Features: Media: Glass Fibre Filter paper (Extended Filter Surface)  Separators: Aluminium/ Also P.V.C. for Special Applications  Casing: Anodised Aluminium / S.S. 304/M.S. powder coated  Gasket: Soft Sponge Rubber? Neoprene Double Faced.  Side Sealant: Epoxy. Maximum Penetration 0.03%- at nominal air volume on Hot DOP (Factory Test) Typical installations: Precision Assembly Areas Pharmaceutical Plants Food and Beverage Processing plants. Computer ventilation System. Research Laboratories Nuclear Operations Photographic Plants and lab And many other applications where it is necessary to: Provide dust free air Remove radio active or toxic dusts. Remove pathogenic organism or mold spores.

 

Airtech is a customized air solutions provider. Since its inception in 1992, Airtech has cultivated an in-depth understanding and expertise of executing turnkey HVAC & clean room projects. The firm has to its credit many successful project executions spread across an array of Industrial, Commercial, Municipal, Healthcare, Governmental and Non-Profit sectors. The group`s client centric sensibilities enable it to dole out tailor-made solutions that cater to specific needs. This coupled with its ability to work in co-ordination with clients, translates into Airtech being a preferred solutions provider. Airtech group has its own state-of-the-art manufacturing facilities which feature world-class manufacturing equipment to ensure consistency in quality and reliability. Ever in favor of keeping pace with new developments and technological advancements, it has recently also expanded its R&D base. In an industry that is increasingly demanding precision, excellence and expertise, Airtech deems it a professional responsibility to live up to the challenge and cater to varied needs while meeting international quality standards.

Vision  To emerge as the leading air management solutions provider.

Mission  To promise, deliver and sustain optimum quality and performance that spans the length and breadth of our services.