Double Skin Air Handling Units INTL-31-OCT 06-R0 CI680512
For assured Indoor Air Quality. For more information, please contact BLUE STAR LIMITED, International Division, Band Box House, 4th Floor, Dr. Annie Besant Road, Worli, Mumbai - 400 030. India. Tel: 91-22-66544000. Fax: 91-22-66544001. Visit us at: www.bluestarindia.com or email: [email protected]
12 1 Blue Star is India’s leading airconditioning Company, with over 6 decades of experience in providing expert cooling solutions. On offer are Double Skin Air Handling Cu Tubes Units that are developed and powered with innovative technology to provide end customers with excellent and optimized solutions. DIDW Centrifugal Forward Curved Fan Following are some of the options that you can Sandtrap choose from: Bag Filter Louvers
•Horizontal Floor Mounted
•Vertical Floor Mounted
•Ceiling Suspended Certificates
Flexible Canvas Connection Base Frame
Ultraviolet Light
Aluminium Anti-Corrosive Anodized Frame Hydrophilic Coated Fins Pre Filter
2 3 Product Specifications Coils
Primarily coils are designed for chilled water and Quality Assurance direct expansion applications, manufactured AHUs comply with the standards mentioned The panel is made of “Sandwich” construction from ½” OD copper tubes of staggered Drain Pan below: of 25 mm or 46 mm, injected with CFC free, configuration and counter flow design. R141b blended, polyurethane foam insulation Drain pan with wider width and differential slope The Free Flow Fins configuration combines a • ISO 9001-2000 on Quality Management having density of 40 Kg / m³ and thermal ensures complete drainage of condensate. mild ripple with die formed directional guide System. conductivity of 0.022 W/m K. This provides Typically the drain pan is fabricated from 0.8 mm channels. These create a turbulent wiping action excellent thermal insulation and sound thick stainless steel grade in the normally dead area behind the tubes. And • EN 1886, EN 13053 on Mechanical and attenuation properties. SS-304 insulated with 10.0 Performance characteristics. thereby prolong the contact with cooling surface. mm close cell, cross linked, The casing panels (Inner and Outer) are Such advance engineering techniques allow irradiated, fire retardant grade i. Casing Strength: Class 2A constructed of zinc coated steel sheets. Options AHUs to improve the heat transfer capability and polyethylene material. ensure the optimum balance between a high ii. Casing Air Leakage: Class A available on sheet specifications are: Intermediate tray is provided heat transfer coefficient and a minimum for stacked coils to collect the iii. Thermal Transmittance: Class T2 • 0.6/0.8/1.0/1.2 mm steel sheet coated with pressure drop. condensate from the top coil. 220 g/m² galvanized zinc (Zn) and 3% iv. Thermal Bridging Factor: Class TB2 chromate. Various circuiting methods provide more Coils with hydrophilic coating are available as an flexibility, wider selection, and unexcelled option. Pre-coated fins have distinct advantage • AMCA 210 on Fans Air Flow performance and • 0.6/0.8/1.0/1.2 mm steel sheet coated with performance optimization. over conventional fins because of its water AMCA 300 Sound performance 120 g/m² galvanized zinc (Zn) and pure shedding properties, corrosion resistance and polyester pre-painted of coating thickness 25 Mechanical expansion of tubes excellent UV resistance. These properties Casing µm for corrosion protection. assure tight bonding between increase coil efficiency and enhance cooling tubes and fins for better heat capacity. Rigid frame work construction made of extruded • 0.8/1.0/1.2 mm aluminium sheet. transfer. hollow aluminium anodized profile with nylon For clear room application, the optional full fiber glass corner joints and reinforced • 0.6/0.8 mm stainless steel sheet of grade The full channel galvanized channel frame constructed of stainless steel SS internally. SS-304/SS-316. steel frame and intermediate support provides 304 grade is available. rigid frame structure. Optional thermal bridge frame work for fresh air The panels are removable and are fixed to the application and outdoor installation ensures frame with self-tapping screws. Labyrinth type The headers are heavy section with seamless elimination of condensation phenomenon on gasket sealing between frame and panel copper tubing. The end connection is made in frame work. eliminates possibility of any air leakage. steel pipe for a welded joint. One drain and one vent fitting are conveniently located on inlet and The entire unit is supported on full perimeter outlet connection. base frame constructed from heavy duty galvanized steel sheet. Complete coils are factory pressure tested at 325 psig compressed air under water. Coils are designed for operation up to 250 psig design working pressure at 300°F.
4 5 Fans Filters
Fans used are Kruger make, AMCA certified, The filter comprises of high quality synthetic filter energy efficient. media from FilterAir. The media is thermally bonded with progressive Fire retardant, Flexible connectors are provided • Secondary Bag Filters All wheels are statically, dynamically and trim density to have high dust between the fan discharge and main casing. balanced to ISO 1940 and AMCA 204/3 – G2.5 holding capacity and low The synthetic media consists of strategically standard. The operating limit of each fan type is initial pressure drop. The Motor and Drive Package layered and blended melt-blown polypropylene designed to meet the requirement of class I, II media is certified as self fibers fastened to a non-shed, high density and III limit as defined in AMCA standard extinguishing class 2 as per UL 900. The filters’ Motors used are energy efficient, totally polypropylene backing. Vertical separators are 99-2408-69. efficiency is tested in accordance with ASHRAE enclosed fan cooled (TEFC) type, with IP 55 incorporated into each pocket to effectively 52.2-1999 standards. Filter media is stamped protection, Class F insulation, three phase, channel air throughout the media to prevent Bearings used are either with filter class as a proof of originality. 50 Hz, 415 V, Squirrel cage induction motor. excessive turbulence and maintaining low deep groove ball bearing pressure drop. type with an adaptor Dual duty, Taper lock, Split bush, are used to • Pre-Filters sleeve, or spherical roller eliminate the re-boring and keyway problems F7 & F9 Filters efficiency conforms to 98% down bearing type at both The media in pleated and convenience in maintenance. Matching to 3 micron and 99.9% down to 3 micron sides for different duty construction is housed in Wedge “V” belts are used for high power respectively as per EN-779 standard. applications. Housings are fabricated from transmission. galvanized/aluminium galvanized sheet steel and shaft from C45 cassette type frame • HEPA Filters carbon steel. Various options are made supported with aluminium available to meet the mesh on air leaving side. Ideal design to be used in hospitals, Various options available on types of fans used specific, customized Filters efficiency conforms to G3 grade, 90% pharmaceutical, electronics in the air handling unit are: requirements: down to 10 micron as per EN-779 standard. and clean room applications.
• DIDW, Centrifugal Fan with Forward Curve The filter features high • Dual Speed • Preliminary Bag Filters Wheel. efficiency micro-glass paper pleated to form compact • Flame Proof Construction The pockets are housed • DIDW, Centrifugal Fan with Backward Curve media pack. Filters are scanned for leak-free in galvanized/aluminium Wheel. • Variable Pitch Pulley construction. flange type frame. These • DIDW, Centrifugal Fan with Backward Curve pockets are welded at The complete fan and motor assembly is placed The filter utilizes a continuous sheet of wet-laid Air Foil Wheel. edges into a rigid and on separate aluminium extruded base frame, micro-fiber media that is deep pleated and can aerodynamic shape to • Plenum (Plug) Fan with Backward Curve isolated from the main unit with rubber mounts / operate in applications with 100% humidity. reduce the pressure drop. Special welded Wheel. spring isolators. spacers ensure full media utilization. Filters’ Super Flow, H13 Filters efficiency conforms to efficiency conforms to F5 grade, 99% down to 99.997% down to 0.3 micron particle size at 5 micron as per EN-779 standard. rated flow as per EN 1822 standard.
6 7 Dampers VFD Variable Frequency Drive
The volume control dampers have been Fully dedicated to HVAC applications, advanced designed to provide positive control of air within variable speed technology is used to bring down the airconditioning system. energy and maintenance cost. Drive includes an Heat Recovery Wheel Following are the various parameters which can RFI filter, DC link coils and an in-built 2 – zone be controlled efficiently: Dampers are constructed Current ASHRAE standard 62-2001 recommends PID controller. from high quality aerofoil the 20 ~ 30 CFM per person in a conditioned • Outside air & air mixture damper, with free design aluminium / The detachable Local Control room to avoid Sick Building Syndrome and cooling, free heating and enthalpy control galvanized extrusion and maintain the High Indoor Air Quality. Panel makes it easy to copy suitable for flanged programming instructions. It • Intake & supply fan, with two steps or inverter connection within square Stale air from the airconditioned space is has several read outs to control or rectangular shape. exhausted through one half of the heat wheel choose from with crystal sharp • Water heating coil and while fresh air is drawn through the other half of display. It also has a true electric heaters, with pre- Blades are mainly pivoted on PVC bushes and the wheel in a counter flow pattern thereby Hand-Off-Auto function with heating management operate through PVC gear system which is fully achieving energy recovery. Also managing local and remote control. In new installation, a enclosed with the damper frame. savings in operation cost. payback time of less than one year can be • Water cooling coil achieved when compared to constant volume • Direct expansion with condenser control A wide range of control options are available Heat recovery wheels use custom made metallic systems. and include motorized and manual operation honey comb matrix coated with Molecular Sieve • Direct expansion with three On/Off steps dessicant. Intelligent Controller • Cross-flow, rotary and double coil heat Electric Heater recovery unit The heat recovery wheels used The Intelligent controller is a highly advanced, “U” shaped tubular finned heaters are used to user friendly controller with a micro processor are suitable at 80% equal and • Supply & return air filter increase surface area for effective both Sensible and Latent heat based program which comes heating. These heaters come with • Adiabatic/Steam humidification with On/Off or recovery at 700 FPM face air with an in-built display. mounting clamp and insulated with modulating control velocity. heat shrinkable sleeve for electrical The Blue Star solutions for Air • Built-in daily/weekly timer connections. Watt density of heaters The rotary heat exchangers are provided with Handling Unit market completes the range by is maintained at 5 watts / cm². purge section to reduce the penetration of offering all the components like electrical panel, • All models are network connection enabled, exhaust air to supply air. Non contact labyrinth pressure, temperature, humidity, air quality using RS 485 port & MODBUS protocol seals are placed on the rotors perimeter and probes, differential pressure switch, flow switch, dividing line to provide additional protection actuators, etc required for the control system against air leakages. and application to meet varied customer requirements. Heat wheels used are certified under ARI 1060 certification program. A total of 24 different pre-configured systems are available and can be selected by setting just one parameter.
8 9 Technical Specifications Filters Cooling Coil Pre-Filter Section & 8 RD - Cooling) & 6 - RD - Cooling) Fan Model (Kruger) Fan & Vertical & Vertical Discharge Coil Section (8 Rows) + Bag 600 mm Deep Electric Heater Section Mixing Box Section with Mixing Box Section with Mixing Box Thk. (with Access Door) Thk. Fan Section - Horizontal Fan Coil Section (1 - 6 Rows) Deep (with Access Door) Deep (with Access Door) Supply Air Plenum Section Supply Air Plenum + Fine / Bag 300 mm Deep Bag Filter Section - 600 mm Droplet Eliminators (4 Pass) Fresh Air Intake Section with Air Intake Fresh Coil Section (2 - RD - Heating Coil Section (2 - RD - Heating HEPA Filter Section - 600 mm HEPA Heat Recovery Wheel Section Heat Recovery Pre-Filters & RA / FA Dampers Pre-Filters & RA / FA Sand Trap Louver & Pre-Filters Louver Trap Sand Combination Filter Section - Pre Fine / Bag Filter Section - 300 mm Combination Filter Section - Pre Pre-Filters & RA / EA / BD Dampers
Width Height Width Height Air Quantity AHU Model @ 2.54 m/s AHU Dimensions with 25 AHU Dimensions with 46 Section Length Filter Area Section Length Coil Area Section Length Fan Dia. mm thk. PUF Panels mm thk. PUF Panels CMH mm mm mm mm mm mm mm Sq. mtr. mm mm mm mm mm mm Sq. mtr. mm mm mm mm mm mm mm mm mm mm
E - 035 3453 997 657 1030 690 458 458 938 0.40 35 458 875 875 1153 1153 0.377 557 696 835 974 319 319 597 418 1014 250
E - 050 4870 1099 796 1132 829 458 458 938 0.54 35 458 875 875 1153 1153 0.532 557 696 835 974 319 319 597 418 1153 280
E - 080 7969 1251 1074 1284 1107 458 458 1216 0.90 35 458 875 875 1153 1153 0.871 557 696 835 974 319 319 597 418 1292 355
E - 120 12396 1810 1074 1843 1107 597 597 1216 1.44 35 458 875 875 1153 1153 1.335 557 696 835 974 319 319 597 418 1153 450
E - 160 15554 1949 1213 1982 1246 597 597 1500 1.70 35 458 875 875 1153 1153 1.700 557 696 835 974 319 319 597 557 1292 500
E - 200 20069 2088 1373 2121 1406 875 875 1500 2.16 35 458 875 875 1153 1153 2.194 696 835 835 974 319 319 597 557 1431 560
E - 250 25323 2366 1500 2399 1533 875 875 1900 2.73 35 458 875 875 1153 1153 2.768 696 835 835 974 319 319 597 557 1431 630
E - 300 30458 2546 1627 2579 1660 875 875 1900 3.36 35 458 875 875 1153 1153 3.329 696 835 835 974 319 319 597 557 1570 710
E - 400 39372 2685 1996 2718 2029 1014 1014 2300 4.50 35 458 875 875 1153 1153 4.303 557 696 835 974 319 319 597 696 1889 800
E - 500 49672 2963 2250 2996 2283 1153 1153 2900 5.40 35 458 875 875 1153 1153 5.429 557 696 835 974 319 319 597 835 2167 900
E - 600 60563 3241 2440 3274 2473 1153 1153 2900 6.60 35 458 875 875 1153 1153 6.619 557 696 835 974 319 319 597 835 2306 1000
Notes: 1. AHU with single Modular unit. 2. Please add 100 mm of extrusion length in each module. 3. Add 100 mm in the AHU height for Base channel. 4. Standard empty sections are available in sizes : 180, 319, 458, 597, 736, 875, 1014 & 1153 mm.
* Specifications are subject to change due to continuous product development.
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