Name of Work: Replacement of Air Handling Units along with accessories in exhibition hall 1 & 2 at Chennai Trade Centre Complex, Nandambakkam, Chennai-89
Sl. No.
Item Description
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Cat (A) -Items to be supply and installation
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Supply, Installation, Testing and Commissioning of Double skin AHU with Outer skin of 0.8 mm pre-coated GI outer skin & Inner skin of 0.8mm plain GI for outer skin with profile made out of 50 mm thermal break AI profile, minimum of min 43kg/m3 puff density puff chemical has to be DOW make with fire retardant quality mixing. Mixing box with return & fresh air dampers. Return & Supply onTOP side 1.6mm thick powder coated GI sheet with minimum of 100mm height made out of single sheet 1.2mm thick SS304 jindal/JSW make with SS nipple 13mm thick nitrile rubber insulation. 6 row CHW coil ½ inch IGT copper tubes of minimum. 4mm thick 0.15mm thick AL fins with epoxy based anti-corrosive coating, SS304 end plates with MS header pipe. 4 way pass PVC mist eliminator. 10 micron pre filter (EU-4). Fan will be belt driven DIDW fan motor will be IE2 efficiency with VFD compatibility. The AHU has to be EN1886 certified under all five categories including thermal transmittance. Air volume-24000CFM at 75mmwg TSP with other accessories such as limit switch, LED lamps, belt guard etc.Capacity: 60TR with 24000 CFM @TSP 75mm of wg
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Supply & Modification of Suitable Pipe with Insulation & Cladding for above Air Handling Unit
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Supply & Installation of Suitable Manual butterfly valve with Insulation as per specification complete with end flanges/matching flanges, additional supports, fixing accessories, etc. The valve shall be gear operated for 200NB and above 80NB.
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Supply & Installation of ‘Y’ type strainer with removable stainless steel screen with 3 mm perforation and permanent magnet, drain piping. Rate shall inclusive of matching flanges, additional supports, fixing accessories, thermal insulation, etc – 80 NB.
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Supply & Installation of 2 wayPressure independent control valve with non-spring return modulating actuator – 80 NB
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Supply & Installation of Suitable Drain Valves
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Supply & Installation of 25 NB Automatic Air vents along with ball valve
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Supply & Installation of Pressure gauge with accessories
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Supply & Installation of Temperature gauge with accessories
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Supply & Installation of UPVC drain pipe 50 mm Dia with insulation
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Erection & Modification of existing ducting with insulation for the New AHU replacement
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Shifting & Lifting for Air Handling units to the respective floors
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Cat (B) - Buy Back Items
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Buy-Back (ie minus)Amount Buy back the old AHU’s 60Tr capacity
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