Tender For Design Fabrication Supply Installation Testing Commissioning And Handing Over Of Air Conditioning System After Dismantling And Taking Away Buy Back Of Existing Air Conditioning System At Gandhi Bhavan, Kolkata-West Bengal

Design Fabrication Supply Installation Testing Commissioning And Handing Over Of Air Conditioning System After Dismantling And Taking Away Buy Back Of Existing Air Conditioning System At Gandhi Bhavan Design Fabrication Supply Installation Testing Commissioning And Handing Over Of Air Conditioning System After Dismantling And Taking Away Buy Back Of Existing Air Conditioning System At Gandhi Bhavan , The Bidder Must Quote, Considering That Detailed Design & Engineering, Preparation Of Drawings, Support For Comprehensive Service Drawings, Obtaining Statutory And Clients Approval, Preparation Of As Built Drawings And The Like Is Part Of The Scope Of Work In Addition To Supply, Installation, Testing And Commissioning.The Quoted Rates Shall Be Exclusive Gst Which Shall Be Shown Separately , Part - A Supply, Installation, Testing And Commissining Of , Horizontal Floor Mounted Double Skin Air Handling Unit In Draw Through Configuration With 50Mm Thick Sandwich Insulated Panels With Cfc Free Polyurethane Foam 40±2 Kg / Cumtr Injected Between Outer Skin Of 0.6Mm Precoated Gss And Inner Skin Of 0.6Mm Thick Plain Gss And Extruded Aluminium Frame Structure With Thermal Brake Profile And Comprising Of The Following Sections Air Intake Section With Access Door And Dampers In Extruded Aluminium Construction For Return Air And Fresh Air Filter Section With Combination Filter Of Rating G4 And F6 Mounted On A Common Frame Cooling Coil Section With 6R Deep / 12 Fpi Dx Type Cooling Coil In Four Sections With Suitable Distributor And 18Swg Ss Drain Pan Insulated With 9Mm Thick Elastomeric Nitrile Insulation Blower Section With Didw Centrifugal Fan With Forward Curved Impeller, Tefc Squirrel Cage Induction Motor, V-Belt Drive Package Mounted On A Common Base Frame With Anti-Vibration Mounts Ad Fire Retardant Flexible Connection. Suitable Access Door With Limit Switch And Marine Light Should Be Provided In Blower Section. Fan Shall Be Vertical Top Discharge. The Air Handling Unit Shall Be Provided With Supply Air Damper In Extruded Aluminium Construction Supply Air - 12000Cfm - External Sp - 25Mm Wc Fresh Air Cfm - 1700Cfm Return Air Cfm - 10300 Cfm Total Capacity - 40Tr (4 Sections Of 10Tr Each) Face Velocity Of Filters And Cooling Coil Shall Be Restricted To 500Fm Max (2.54M/Sec) Fan Should Be Selected For An Outlet Velocity Not Exceeding 10.2M/Sec , Air-Cooled Outdoor Condensing Unit Suitable For 415V ± 10%, 50Hz ± 5%, 3Ø Ac Power Suply, Complete With Hermetically Sealed Type Scroll Compressor For R410a Refrigerant, Drive Motor, Air-Cooled Condenser With Protective Coating And Propeller Type Fan With Motor And Other Standard Accessories, Housed In Compact Powder Coated Sheet Metal Enclosure Nominal Capacity - 11Tr , Microprocessor Controller Suitable To Control Four Numbers Condensing Units Having Fault Display, Run-Time Equaliser, Touch Key Switch, Time Delay For Compressor, Temperature Control Etc , Insulation Of Refrigerant Piping Can Be Of Elastomeric Class-O Nitrile Rubber Tubing Of Specified Thickness Covered With Glass Cloth At Site For Mechanical Protection. , Suction Line 1.1/8 / 28.57Mm Od With 19Mm Thick Tubing Insulation , Liquid Line - 1/2 / 12.7 Mm Od With 13Mm Thick Insulation , 14Swg Perforated Gss Cable Tray For Laying Of Refrigrant Piping , Condensing Unit Accessories For 11Tr Units Like Drier, Hand Shutoff Valvs, Thermostatic Expansion Valves Etc. Required To Make The Circuit Complete , Ductable Split Air Conditioner Units With Air-Cooled Outdoor Condensing Unit Suitable For 415V ± 10%, 50Hz ± 5%, 3Ø Ac Power Suply, Complete With Hermetically Sealed Type Scroll Compressor For R410 Refrigerant, Drive Motor, Air-Cooled Condenser With Protective Coating And Propeller Type Fan With Motor And Other Standard Accessories, Housed In Compact Powder Coated Sheet Metal Enclosure And Ceiling Suspended Indoor Unit In Powder Coated Construction Complete With Non Wovn Polyester Media Air Filter Enclosed In Hdpe Mesh, Dx Type Cooling Coil, Condensat Drain Pan, Didw Centrifugal Fan With Forward Curved Impeller And Drive Motor Complete All Necessary Accessories Like Microporocessr Based Controller With Led Display, Contactor For Compressor, Capacitor For Outdoor Fan, Single Phase Preventor, Safety Pressure Switch, Crank Case Heater, Thermostatic Expansion Valve, Drier, Shut Off Valve Etc Nominal Capacity - 8.5Tr , Air Flow - 3400Cfm , Inter-Connecting Refrigerant Piping Between Outdoor Unit And Indoor Unit With 20Swg Thick Hard Drawn Copper Seamless Pipes And Fittings And Insulated With Factory Laminated Glass Cloth Coated Elastomeric Nitrile Insulation 19Mm / 13Mm Thick , Suction Line 7/8 / 22.2Mm Od With 19Mm Thick Tubing Insulation , Liquid Line - 3/8 / 9.5 Mm Od With 13Mm Thick Insulation , 14Swg Perforated Gss Cable Tray For Laying Of Refrigrant Piping , Double Skin Supply Air Plenum In 25Mm Sandwich Insulated Construction With Extruded Aluminium Frame Structure And 25Mm Polyurethane Foam Density 40 ± 2 Kg/Cumtr Injected Between Outer Skin Of 0.6Mm Pre-Coated Gss And Inner Skin Of 0.6Mm Plain Gss, Plenum Dimension Will Be 1850W X 650H X 450Mm D. Plenum Will Be Provided With 3Nos Jet Nozzles, Suitable To Handle Total Of 3400Cfm Flushed With It. , Double Skin Return Air Plenum In 25Mm Sandwich Insulated Construction With Extruded Aluminium Frame Structure And 25Mm Polyurethane Foam Density 40 ± 2 Kg/Cumtr Injected Between Outer Skin Of 0.6Mm Pre-Coated Gss And Inner Skin Of 0.6Mm Plain Gss, Plenum Dimension Will Be 1850W X 650H X 350Mm D. Plenum Will Be Provided With A Return Air Grill Of Suitable Size. Suitable Access Door Shall Be Provided For Attending To Inddor Unit Filter. , Ceiling Susension Arrangement For Indoor Unit And Plenums With Necessary Gi Suspendors And Slotted Channels Etc. , Acoustic Insulation Of Ahu Room Wall Between Auditorium And Ahu Room With Fiber Free Open Cell Nitrile Rubber Foam Density 140-180 Kg/Cumtr - 15Mm Thick, Stuck To The Wall With Manufacturer Recommended Adhesive. All Longitudinal And Transverse Joints Shal Be Sealed With 50Mm Wide - 22Swg Gi Strips Fixed With Screws , Acoustic Insulation Of Supply Air Duct From Inside With Fiber Free Open Cell Nitrile Rubber Foam Density 140-180 Kg/Cumtr - 15Mm Thick, Stuck To The Wall With Manufacturer Recommended Adhesive , Thermal Insulation Of Suply Air Ducting With 19Mm Thick Closed Cell Elastomeric Nitrile Rubber Insulation With Factory Backed Aluminium Foil One One Side Fixed To Ducting By Manufacturer Recommended Adhesive. Maximum Thermal Conductivity Of The Insulation Material Shall Be 0.035 Wa/ (M-K) , Gi Volume Control Damper Within Ducts To Be Provided With Suitable Links, Levers And Quadrants For Manual Control Of Volume Of Air Flow And For Proper Balancing Of The Air Distribution System As Per Direction Of Eic Complete With Locking Arrangement , Motorized Fire Damper Of 90 Mins Fire Rating As Per Specification With Limit Switch, Actuator, Some & Fire Sensor Controller , Fire Damper , Spring Return Type Actuator Suitable For 230V Ac Power Supply For Above , Limit Switch For Above , Control Panel For Above , Gss Sheet Metal Rectangular Ducting As Per Specification Complete With Accessories As Specified , 24 G Gi Sheets , 22 G Gi Sheets , 20 G Gi Sheets , Gi Fresh Air Intake Louvers With Bird/Insect Screen And Gi Volume Control Damper Size 750Mm X 600Mm , Extruded Aluminium Powder Coated Fixed Bar Supply Air Grille With Removable Core And Integral Extruded Aluminium Black Volume Control Dampers , Extruded Aluminium Powder Coated Fixed Bar Return Air Grille Without Volume Control Dampers , Condensate Drain Water Piping With Cpvc Pipes, Rated For 6Kg/Cm2 As Insulated With 6Mm Thick Elastomeric Nitrile Insulation From Respective Air Handling Units To Nearest Floor Drain Point 40 Mm Dia , Ms Structural Base For Placement Of Outdoor Condensing Units Duly Painted With Two Coats Of Zinc Rich Primer Followed By Two Coats Of Synthetic Enamel Paint , Floor / Wall Mounted Top Connection Cubicle Type Indoor Compartmentalized 415V., 50 Hz. Dust & Moisture Proof Lt Distribution Panel Board With Following Electrical Accessories Fabricated From 14 Swg Crca Sheet With Ms Angle Frame As Requried. . The Panel Should Have Adequate Strength & Space To Accommodate The Incoming & Outgoing Switches And Bus-Bars With All Interconnection In Between The Switches And Bus-Bars With Copper Flat / Flexible Wire Of Suitable Capacity. The Panel Should Be Provided With Cable Alley For Facilitating Connection Of All The Incoming & Outgoing Frls Cables With Termination Arrangement By S&F Copper Terminal Stud / Bolt Of Required Sizes. The Panel Board Should Consist With The Followings:- (A) Incomer:- A) 415V., 250 Amp. 36 Ka 4-Pole Mccb With Thermal - Magnetic Release , - 1 No. (B) Busbar Chamber:- 200 Amp Capacity 99.9% - 99.5% Electrolytic Tinned Copper 4 Bar Bus Bar Mounted On Non-Hygroscopic Porcelain Insulator / Hylam Sheet Having Sufficient Di-Electric Strength Duly Wrapped With Colour Pvc Tapes (Red, Yellow, Blue & Black) For Phases & Neutral Identification & All Connection Made With Required Size Cu Bars - 1Set. (C) Outgoing:- A) 415V., 40Amp. 36 Ka 4-Pole Mccb With Thermal - Magnetic Release, - 4 Nos. For Condensing Units B) 415V., Suitable Rating Of Mccb, Suitable Rating Fasd Starter For Operation Of Ahu Motor With Over Load Relay, Inbuilt Single Phasing Protection, On & Off Switch And Outgoing Feeder To Air Handling Unit Motor. The Compartment Shall Contain An Indicating Lamp For ‘On’ & Off Status - 4 Nos C) 16Amps - 230V - Mcb Feeder - 1 No (Spare) (D) Metering:- (A) 500V., C.T. Coil (C.T. Ratio-200/5A.) - 1 Nos. (B) Led Indicator Lamps - 03 Nos. (C) Panel Mounted Digital Voltmeter In 96X96 Mm² (Ae/ Hpl) [0 - 500 Volt] - 01 No. (D) Panel Mounted Digital Ammeter In 96X96 Mm² [0 - 200 Amp.] - 01 No. (E) Danger Board - 01 No. , Power And Control Cabling Between Panel And Drives With Pvc Armoured, Pvc Sheathed 1100V Frls Cables With Copper Conductor As Per Is 1225 Complete With End Terminations With Doube Compression Cable Glands Laid On 14Swg Perforated Gss Cable Trays , 4C X 10 Sqmm - Copper Conductor , 3C X 6 Sqmm - Copper Conductor , 7C X 1.5 Sqmm - Copper Conductor , 4C X 1.5 Sqmm - Copper Conductor , 2C X 1.5 Sqmm - Copper Conductor , Earthing Between Equipment And Panel With 4Sqmm X 1C Copper Cable (Unarmoured - Green) , First Charge Of Refrigerant - R410a For The Complete Installation Commissioning, Balancing And Performance Testing Of The Complete Installation , Part - B All Inclusive Annual Maintenance Contract Charges For 3 Years After Defects Liability Period , 1St Year After Dlp , 2Nd Year After Dlp , 3Rd Year After Dlp , Part - C Buy Back For The Existing Air Conditioning System , Dismantling, Removal And Disposal Of The Existing Air Conditioning System

Refer document

INR 200000.0 /-

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Name of Work: Design, Fabrication, Supply, Installation, Testing, Commissioning and handing over of AIR-CONDITIONING SYSTEM after dismantling and taking away (buy back) of existing air-conditioning system at GANDHI BHAVAN of Jadavpur University Main Campus including 03 (three) years of mandatory AMC with all risk protection and all spares i.e., comprehensive contract after completion of 2 (two) years compulsory comprehensive defect liability period from the date of successful handing over/ taking over of the system.

Sl. No.	Item Description
1	The bidder must quote, considering that detailed design & engineering, preparation of drawings, support for comprehensive service drawings, obtaining statutory and clients" approval, preparation of as built drawings and the like is part of the Scope of Work in addition to supply, installation, testing and commissioning.The quoted rates shall be exclusive GST which shall be shown separately
2	PART - A SUPPLY, INSTALLATION, TESTING AND COMMISSINING OF
3	Horizontal Floor Mounted Double Skin Air Handling Unit in Draw through configuration with 50MM Thick Sandwich Insulated panels with CFC Free Polyurethane Foam 40±2 Kg / Cumtr injected between Outer Skin of 0.6MM Precoated GSS and Inner Skin of 0.6MM Thick Plain GSS and Extruded Aluminium Frame Structure with thermal brake profile and comprising of the following sections Air Intake Section with Access Door and Dampers in Extruded Aluminium Construction for Return Air and Fresh Air Filter Section with Combination Filter of Rating G4 and F6 mounted on a common frame Cooling Coil Section with 6R Deep / 12 FPI DX Type Cooling Coil in four sections with suitable Distributor and 18SWG SS Drain Pan insulated with 9MM Thick Elastomeric Nitrile Insulation Blower Section with DIDW Centrifugal Fan with Forward Curved Impeller, TEFC Squirrel Cage Induction Motor, V-Belt Drive Package mounted on a common base frame with Anti-vibration mounts ad Fire retardant flexible connection. Suitable Access door with Limit Switch and Marine Light should be provided in Blower Section. Fan shall be Vertical Top Discharge. The Air Handling Unit shall be provided with Supply Air Damper in Extruded Aluminium Construction Supply Air - 12000CFM - External SP - 25MM WC Fresh Air CFM - 1700CFM Return Air CFM - 10300 CFM Total Capacity - 40TR (4 Sections of 10TR each) Face Velocity of Filters and Cooling Coil shall be restricted to 500FM Max (2.54M/Sec) Fan should be selected for an outlet velocity not exceeding 10.2M/Sec
4	Air-cooled Outdoor Condensing Unit suitable for 415V ± 10%, 50Hz ± 5%, 3Ø AC Power Suply, complete with Hermetically Sealed Type Scroll Compressor for R410A Refrigerant, Drive Motor, Air-cooled Condenser with protective coating and Propeller Type Fan with motor and other standard accessories, housed in compact powder coated sheet metal enclosure Nominal Capacity - 11TR
5	Microprocessor Controller suitable to control four numbers Condensing Units having Fault Display, Run-time equaliser, Touch key switch, time delay for compressor, temperature control etc
6	Insulation of refrigerant piping can be of elastomeric Class-O nitrile rubber tubing of specified thickness covered with glass cloth at site for Mechanical protection.
7	Suction Line 1.1/8 " / 28.57MM OD with 19MM thick Tubing Insulation
8	Liquid Line - 1/2" / 12.7 MM OD with 13MM thick Insulation
9	14SWG Perforated GSS Cable Tray for Laying of Refrigrant Piping
10	Condensing Unit accessories for 11TR Units like Drier, Hand Shutoff Valvs, Thermostatic Expansion Valves etc. required to make the circuit complete
11	Ductable Split Air conditioner Units with Air-cooled Outdoor Condensing Unit suitable for 415V ± 10%, 50Hz ± 5%, 3Ø AC Power Suply, complete with Hermetically Sealed Type Scroll Compressor for R410 Refrigerant, Drive Motor, Air-cooled Condenser with protective coating and Propeller Type Fan with motor and other standard accessories, housed in compact powder coated sheet metal enclosure and Ceiling Suspended Indoor Unit in Powder Coated Construction complete with Non wovn Polyester media Air Filter enclosed in HDPE mesh, DX Type Cooling Coil, Condensat Drain Pan, DIDW Centrifugal Fan with Forward Curved Impeller and Drive Motor complete all necessary accessories like Microporocessr based Controller with LED Display, Contactor for Compressor, Capacitor for Outdoor Fan, Single Phase Preventor, Safety Pressure Switch, Crank Case Heater, Thermostatic Expansion Valve, Drier, Shut off Valve etc Nominal Capacity - 8.5TR , Air Flow - 3400CFM
12	Inter-connecting Refrigerant Piping between Outdoor Unit and Indoor Unit with 20SWG thick hard drawn Copper Seamless Pipes and Fittings and insulated with Factory laminated Glass Cloth coated Elastomeric Nitrile Insulation 19MM / 13MM Thick
13	Suction Line 7/8 " / 22.2MM OD with 19MM thick Tubing Insulation
14	Liquid Line - 3/8" / 9.5 MM OD with 13MM thick Insulation
15	14SWG Perforated GSS Cable Tray for Laying of Refrigrant Piping
16	Double Skin Supply Air Plenum in 25MM Sandwich Insulated Construction with Extruded Aluminium Frame Structure and 25MM Polyurethane Foam density 40 ± 2 Kg/Cumtr injected between outer skin of 0.6MM Pre-coated GSS and Inner Skin of 0.6MM Plain GSS, Plenum Dimension will be 1850W X 650H X 450MM D. Plenum will be provided with 3Nos Jet Nozzles, suitable to handle total of 3400CFM flushed with it.
17	Double Skin Return Air Plenum in 25MM Sandwich Insulated Construction with Extruded Aluminium Frame Structure and 25MM Polyurethane Foam density 40 ± 2 Kg/Cumtr injected between outer skin of 0.6MM Pre-coated GSS and Inner Skin of 0.6MM Plain GSS, Plenum Dimension will be 1850W X 650H X 350MM D. Plenum will be provided with a Return Air Grill of suitable size. Suitable Access Door shall be provided for attending to Inddor Unit Filter.
18	Ceiling Susension arrangement for Indoor Unit and Plenums with necessary GI Suspendors and Slotted Channels etc.
19	Acoustic Insulation of AHU Room Wall between Auditorium and AHU Room with fiber free Open Cell Nitrile Rubber foam Density 140-180 Kg/Cumtr - 15MM Thick, stuck to the wall with manufacturer recommended adhesive. All longitudinal and transverse joints shal be sealed with 50MM Wide - 22SWG GI Strips fixed with Screws
20	Acoustic Insulation of Supply Air Duct from inside with fiber free Open Cell Nitrile Rubber foam Density 140-180 Kg/Cumtr - 15MM Thick, stuck to the wall with manufacturer recommended adhesive
21	Thermal Insulation of Suply Air Ducting with 19MM thick Closed Cell Elastomeric Nitrile Rubber Insulation with factory backed Aluminium Foil one one Side fixed to Ducting by manufacturer recommended adhesive. Maximum Thermal Conductivity of the Insulation Material shall be 0.035 Wa/ (m-K)
22	GI volume control Damper within ducts to be provided with suitable links, levers and quadrants for manual control of volume of air flow and for proper balancing of the air distribution system as per direction of EIC complete with locking arrangement
23	Motorized Fire damper of 90 mins Fire Rating as per specification with Limit Switch, Actuator, Some & Fire Sensor Controller
24	Fire Damper
25	Spring Return Type Actuator suitable for 230V AC Power Supply for above
26	Limit Switch for above
27	Control Panel for above
28	GSS sheet metal rectangular ducting as per specification complete with accessories as specified
29	24 G GI Sheets
30	22 G GI Sheets
31	20 G GI Sheets
32	GI Fresh Air Intake louvers with Bird/Insect Screen and GI Volume Control Damper Size 750MM X 600MM
33	Extruded Aluminium powder coated Fixed Bar Supply Air Grille with removable core and Integral Extruded Aluminium Black Volume Control Dampers
34	Extruded Aluminium powder coated Fixed Bar Return Air Grille without Volume Control Dampers
35	Condensate drain water piping with CPVC pipes, rated for 6Kg/cm2 as insulated with 6mm thick Elastomeric Nitrile insulation from respective Air Handling Units to nearest floor drain point 40 mm dia
36	MS Structural base for placement of Outdoor condensing units duly painted with two coats of Zinc rich primer followed by two coats of Synthetic enamel paint
37	Floor / Wall mounted TOP Connection cubicle type indoor compartmentalized 415V., 50 Hz. dust & moisture proof LT Distribution panel board with following electrical accessories fabricated from 14 SWG CRCA sheet with MS angle frame as requried. . The panel should have adequate strength & space to accommodate the incoming & outgoing switches and bus-bars with all interconnection in between the switches and bus-bars with copper flat / flexible wire of suitable capacity. The panel should be provided with cable alley for facilitating connection of all the incoming & outgoing FRLS Cables with termination arrangement by S&F copper terminal stud / bolt of required sizes. The panel board should consist with the followings:- (A) INCOMER:- a) 415V., 250 Amp. 36 KA 4-Pole MCCB with Thermal - Magnetic release , - 1 No. (B) BUSBAR CHAMBER:- 200 Amp capacity 99.9% - 99.5% electrolytic tinned copper 4 bar bus bar mounted on non-hygroscopic porcelain insulator / hylam sheet having sufficient di-electric strength duly wrapped with colour PVC tapes (Red, yellow, blue & black) for phases & neutral identification & all connection made with required size cu bars - 1set. (C) OUTGOING:- a) 415V., 40Amp. 36 KA 4-Pole MCCB with Thermal - Magnetic release, - 4 Nos. for Condensing Units b) 415V., suitable rating of MCCB, suitable rating FASD starter for operation of AHU Motor with over load relay, inbuilt single phasing protection, ON & OFF switch and outgoing feeder to Air Handling Unit Motor. The compartment shall contain an indicating lamp for ‘ON’ & OFF status - 4 nos c) 16Amps - 230V - MCB Feeder - 1 No (Spare) (D) METERING:- (a) 500V., C.T. Coil (C.T. Ratio-200/5A.) - 1 Nos. (b) LED Indicator lamps - 03 nos. (c) Panel mounted digital Voltmeter in 96x96 mm² (AE/ HPL) [0 - 500 Volt] - 01 no. (d) Panel mounted digital Ammeter in 96x96 mm² [0 - 200 Amp.] - 01 no. (e) Danger Board - 01 no.
38	Power and Control Cabling between Panel and drives with PVC Armoured, PVC Sheathed 1100V FRLS Cables with Copper Conductor as per IS 1225 complete with end terminations with Doube Compression Cable Glands laid on 14SWG Perforated GSS Cable trays
39	4C X 10 Sqmm - Copper Conductor
40	3C X 6 Sqmm - Copper Conductor
41	7C x 1.5 Sqmm - Copper Conductor
42	4C x 1.5 Sqmm - Copper Conductor
43	2C x 1.5 Sqmm - Copper Conductor
44	Earthing between Equipment and Panel with 4Sqmm X 1C Copper Cable (unarmoured - GREEN)
45	First Charge of Refrigerant - R410A for the complete installation Commissioning, Balancing and Performance Testing of the complete Installation
46	PART - B ALL INCLUSIVE ANNUAL MAINTENANCE CONTRACT CHARGES FOR 3 YEARS AFTER DEFECTS LIABILITY PERIOD
47	1st YEAR AFTER DLP
48	2ND YEAR AFTER DLP
49	3RD YEAR AFTER DLP
50	PART - C BUY BACK FOR THE EXISTING AIR CONDITIONING SYSTEM
51	Dismantling, Removal and disposal of the existing Air Conditioning System