Jadavpur University Tender

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