Tender For Supply & Installation Of Centralized Air Ventilation System In Places Of Old Existing Centralized Air Ventilation System At 1St Floor & 2Nd Floor Of Central Lock-Up Building At Kolkata Police Headquarters, Lalbazar.
Tender Value
Ref. Documents
Estimated cost
Bid Submission
27 Oct 2026
23 days left
EMD
1.48 Lakhs
Bank guarantee accepted
Document Fee
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Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Kolkata → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Supply & Installation Of Centralized Air Ventilation System In Places Of Old Existing Centralized Air Ventilation System At 1St Floor & 2Nd Floor Of Central Lock-Up Building At Kolkata Police Headquarters, Lalbazar.
BOQ
| Sl. No. | Item Description |
| 1 | AIR-COOLED CONDENSING UNITSupply, installation, testing and commissioning of Air-cooled fixed speed Outdoor Condensing Unit comprises of highly efficient single Scroll Compressor, Copper condenser coil, unit mounted starter panel complete with all accessories suitable for operate on eco-friendly refrigerant R-407C/R-410A. 11.0 TR Nominal Capacity Outdoor Condensing Unit.Make: VOLTAS / OGENERAL / MITSUBISHI |
| 2 | DOUBLE SKINNED AIR HANDLING UNITSupply, installation, testing and commissioning of Double skinned Air Handling Unit with Direct Expansion Cooling Coil, Pre-filter section complete with accessories, Fine Filter complete with accessories, complete with Cu cooling coil having tube thickness minimum 0.41mm), Aluminum fins, Copper header, 2nos.indepandentdistributorsin each AHU suitable for 2 nos. outdoorcondensing units, 20 SW G SS-304 drain tray, DIDW high efficiency backward curved centrifugal fan with suitable capacity motor arrangement, fire retardant flexible canvas connection, IE-2 efficiency TEFC squirrel cage motors VFD compatible of 4 poles, belt drive package. AHU to be equipped with Limit Switch and Light duly interlocked with AHU door.8000 CFM Nominal capacity, 6 Rows Deep, 80 mm of WC Total Static Pressure Make: EDGETECH/ZECO/CARRIER/VOLTAS/BLUE STAR |
| 3 | REFRIGERANT PIPING & ACCESSORIESSupply, design, fabrication and laying of Hard drawn Refrigerant Cu piping complete with thermal insulation by closed cell 19mm Nitrile Rubber Insulation, Nitrogen pressure testing, leak testing, vacuumizing, Refrigerant charging and commissioning work. |
| 4 | 1-1/8'' x 1 mm thick hard drawn Copper Suction Tube covering total distance in between Indoor & Outdoor Unit with 25 mm thick Nitrile Rubber Insulation |
| 5 | 5/8\\" x 1 mm thick hard drawn Copper Liquid Tube covering total distance in between Indoor & Outdoor Unit with 19 mm thick Nitrile Rubber Insulation |
| 6 | Thermostatic Expansion Valve |
| 7 | In and Out Liquid Line Ball Valve |
| 8 | Catch All Drier |
| 9 | Refrigerant R-410 A |
| 10 | 40 mm NB Rigid PVC pipe (Schedule-40) with 9 mm thick Nitrile Rubber Insulation for AHU Drain pipe up to nearest drain point |
| 11 | GSS DUCT WORKSupply, design, fabrication and installation of GI sheet metal duct as per approved drawing along with necessary supports, hangers, flanges etc. as required and as per IS 655 and IS-277 standards of following gauges for required identified areas. Make:SAIL/TATA/Jindal |
| 12 | 24 SWG thick |
| 13 | 22 SWG thick |
| 14 | DUCT DAMPERSupply and fixing of Duct Dampers. (Make: Systemair/Air Enterprise/Dynacraft/Air Master) |
| 15 | CANVAS CONNECTIONSSupply & fixing of fire-retardant non-porous double layer Canvas Connections |
| 16 | DUCT THERMAL INSULATION Supplying and fixing of 25 mm thick duly laminated aluminium foil of mat finish closed cell anti microbial type Nitrile rubber (Class “O”) insulation on duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self-adhesive nitrile rubber tape insulation complete for required identified areas.(Make: KFlex/Armacell/AFlex) |
| 17 | DUCT ACCOUSTIC INSULATIONSupplying and fixing of 10 mm open cell Nitrile rubber (Class “1”) insulation for total duct after applying suitable adhesive, nut bolts etc required identified areas.(Make: KFlex/Armacell/Aflex) |
| 18 | REPAIRING & RECTIFICATION OF ROOFTOP EXHAUST FANCharges towards dismantling, disconnection of Cabinet type single skinned Exhaust Fan Unit. Cleaning, scrapping of external and internal parts, runners, supports and making free from rust & dust. Supplying and applying of 2 layer of red oxide primer coating and then 2 layers of synthetic enamel painting both internal and external parts, replacement of v-belts and alignment, replacement of damaged canvas with water and fire proof materials, replacement of vibration absorbing pads and other defective components, thorough cleaning, servicing and overhauling of exhaust fan unit for proper functions. 3000 CFM Air Handling Capacity |
| 19 | FRESH AIR PACKAGESupply & fixing of stage-1 Pre-Filter section with required numbers of 90% down to 20 microns pre-filter made out of non-Woven type synthetic media consisting of layers thermally bonded synthetic micro-fibres, sandwiched between two layers of woven HDPE cloth for support. There shall be a minimum 6 nos. of deep folds with metal separators for covering total fresh air opening on the outer wall of the premises to suit total 100% fresh air intake from outside to AHUs with black painted metal frame work . Make: Spectrum/FMI/Air Filer/Equivalent Reputed |
| 20 | REPAIRING & REPLACEMENT OF EXHAUST DUCT & TOTAL INSULATIONCharges towards dismantling of damaged external exhaust duct connected with 6 x 3000 CFM Exhaust Units. Supply, design, fabrication and connection of new 24 SWG GSS metal, Class-VIII, 120 GSM (Make-TATA/SAIL) of damaged quantities including suitable brackets/supports, hanger rods etc and finally total outside exhaust duct to be covered with 25 mm thick TF quality Expanded Polystyrene slabs (Thermocole) having density 16 Kg/CuM and covered with plastic vapour barrier, GI chicken wire mesh and 12 mm thick sand cement and plaster to avoid frequent external damages. |
| 21 | ELECTRICAL WORK FOR MAIN ELECTRICAL PANELSupply, design, fabrication, installation, testing and commissioning of wall mounted Main Electrical Panel made out of 2 mm thick CRCA sheet and comprises of One Incomer, Aluminium Busbar, 4 outgoing feeders for Outdoor Condensing Units, 2 outgoing feeders for Air Handling Units complete with necessary rated MCB, Ammeter, Voltmeter, Indication ON/OFF lamps, Overload Relay, Timer, Main switch etc with other standard safeties Make: EAP/Genpower/Exim/CPRI approved makes |
| 22 | POWER & CONTROL CABLESupply and Laying of 1.1 KV Gr. PVC/XLPE insulated, PVC-Sheathed cable, Aluminium armoured for power cables and copper armoured for control cables incl. to laid on wall surface by suitable clamping, proper glanding & finishing the cable ends with solderless sockets for following cables:Make: RR Kabel/Polycab/Havells/Nicco/Gloster |
| 23 | 4 Core 16 sqmm XLPE Al Cable |
| 24 | 7 Core 2.5 sqmm XLPE Cu Cable |
| 25 | 3 Core 2.5 sqmm XLPE Cu Cable |
| 26 | 2 Core 2.5 sqmm XLPE Cu Cable |
| 27 | EARTHING8 SWG GI Wire Double Earthing |
| 28 | MS STRUCTURAL WORK |
| 29 | Supply, design, fabrication, installation of MS structural work as per site requirement |
| 30 | Loading, unloading, lifting, shifting and placement of all equipment, accessories and ancillaries including transportation |
| 31 | Minor Civil wall cut out for laying Duct, pipe, cable, fresh air and exhaust and also civil foundations for Outdoor Units as and where required. |
| 32 | Charges for Scaffolding Arrangements at site up to 2nd Floor Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 30, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 27, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 23 daysOct 29, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 25 daysTender Documents
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