Replacement Of 11.0Tr Ductable Air Conditioner Idu And Odu Along With Three Casette Type Machines For Three Officers Chamber At 3Rd Floor Of Consumer Affairs Building, Khadya Bhawan,Kolkata-700087., kolkata-West Bengal

Replacement Of 11.0Tr Ductable Air Conditioner Idu And Odu Along With Three Casette Type Machines For Three Officers Chamber At 3Rd Floor Of Consumer Affairs Building, Khadya Bhawan,Kolkata-700087.- 1 Dismentling of 11 TR old DuctableAir Conditioner IDU,ODU unitsand handed over the same to the concerned authority store room. 2 Supply & Delivery of Ceiling suspended ductable type split airconditioners having Microprocessor based control system and the following specification incl necy accessories.Capacity-11 Tonnage (upto +1 TR acceptable)Rated Cooling Capacity -132000 BTU/HrNo. of IDU-1 NoAir-flow/IDU-4400CFMNo of ODU- 1 or 2 NosCompressor -2 No Scroll Compressor Refrigerent -R410A / R407CCondenser & Cooling Coil:Copper coilPower Supply :415v, 50Hz,3 Ph AC (with applicable tolarance)[Make-Mitsubishi Electric/Hitachi/DAIKIN] 3 Installation,testing and commisioning charges for the following ductable split air conditioner (both indoor and outdoor unit) by making suitable scaffolding arrangement as per site condition and incl. nitrogen flashing, leak testing & vacuuming, gas charging etc as per direction of E.I.C of the following.11 TR 4 Supply, installation,testing and commisioning of Copper Refrigeration pipe line for Liquid Line/ Suction line suitablefor the above ductable units with supports & brackets,elbow sockets (as per direction of E.I.C.)incl. 9 mm thick nitrile rubber insulation with proper tapping and mending good damages to original finish.Make of Cu Pipe - Rajco / Ryoku/ Mandev/NipponMake of Insulation - Suprime / Accroflex / Armacell/Aerocell.12.7 (1/2)mm dia with min 0.6 mm thick 5 22.2 (7/8)mm Dia with min 0.6 mm thick 6 19.05 (3/4)mm Dia with min 0.6 mm thick 7 Supply,Installation,Testing & Commissioningof 4way cassette type AC machines having capacity Cooling Capacity range (5.3KW or above), with fixed speed rotary compressor, refrigerant gas R32/R410,star rating -3 (EER range 3.5 to 3.9), air-flow range CFM( ), both condenser and cooling coils made of copper tube connecting chord confirming to ISI 1391 (Part-I & Part-II) with all amendments.(Make-Mitsubishi Electric/ O-General/Mitsubishi Heavy Duty) 8 Supply, Installation,Testing & Commissioningof cassette type AC machines having capacity Cooling Capacity range (Above or equal to 6500W ), with fixed speed rotary compressor, refrigerant gas R32/R410 ,star rating -3 (EER range 3.5 to 3.9), air-flow range CFM (), both condenser and cooling coils made of copper tube connecting chordwith all amendments.(Make-Mitsubishi Electric/ O-General/Mitsubishi Heavy Duty) 9 SITC including vaccumiazation and Nitrogen of testing of following nominal size of soft/hard drawn copper refrigerent piping for RAC systcm, complete with fttings, with adjustable ring type hanger supports, jointing/brazing inchuding acccssories, insulated with XLPE class -0 tubular insulation/with Class-O closed cell elastonctric nitrilerubber tubular sleevessections of specified thickness as given helow for suction and liquid lines all accessorics as per specification etc. as required . 10 i)5/8(15.88mm)dia (soft drawn) Cu. Pipes (As per standard BS864 or ANSIB 16.22)mm incl. 9mm thick insulation. 11 ii)3/8(9.52mm)dia (soft drawn) Cu. Pipes incl. 9mm thick insulation 12 iii)1/4(6.4 mm)dia (soft drawn) Cu. Pipes (As per standard BS864 or ANSIB 16.22)mm incl. 9mm thick insulation.s 13 Supply & installation of 25 mmPVC Drain Pipe Line (25 mm /32 mm OD,HD 1 mm thick )of the following size with 6 mm nitrile rubber insulation and withproper supports & brackets as per direction of E.I.C. (Make: Suprime/Oriplast) 14 Supply & fixing of fire retardant nonporous double layer flexible connection (CANVAS) between each indoor unit and duct as per direction of E.I.C. 15 Air Distribution SystemSupply,fabrication and installation of GSS sheet metalducts (rectangular/ round)and plenum chamber complete with necessary MS supports , hangers anchor bolts, supply air collars, vanes, splitters dampers duly painted and as per specification for Air Conditioned Areas.24 SWG 16 Do---Do---Do22 SWG 17 Supply &fixing acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having 1.25mm thick density 32kg/m cube with 25mm x 25mm GI section at 600mm centre to centre with rainforce plastice tissul paper and 0.5 mm thick perforated aluminium sheet fixed to inside surface of ducts at cabmium plated, nuts, bolts, stick pins, cprx compund etc. completed as per direction of EIC. 18 Supply and charging of R410A as per requirement.

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	02-07-2025	Date__Cori	Date	14-07-2025

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