Tender For S/I/T/C Of Air-Cooled Vfd Screw Chillers Of Actual Capacity Of Min 3 X 145 Tr For Biotech Centre Building University Of Delhi South Campus.; 1 Supply, Installation, Testing and Commissioning ofAir Cooled VFD Screw type chilling machine each having a minimum Actual - 145 TR capacity of comprisingscrew compressor with stepless capacity control and direct driven motor, insulated shell and tube type flooded evaporator, air cooled condenser made of copper tubes with aluminium fins & complete with High efficiency fans. The chiller package shall also be complete with copper piping, first charge of R-134A refrigerant gas and system control wiring, Unit Mounted IP54 VFD Starter, incoming suitable electrical isolator complete with accessories as required, automatic & safety controls including electronic expansion valve. Chiller shall be suitable for operation up to 50 °C. The chiller package shall be installed on a fabricated mild steel base frame factory assembled to form a compact. OEM must have BEE Star Labeled Chiller and should comply indian BIS standard. 2 Suitable capacitymotor with class F insulation suitable for operation on 415 +/- 10% volts, 50Hz, A.C. supply. Vertical type Screw Compressors / Compressors with Discharge gas cooled motor are not acceptable. 3 Condenser Shall be of Copper Tube with Al fins type only. MCHX condenser is not acceptable. Condenser Fans shall be of low Noise & high efficiency type only. 4 1 set - Microprocessor based HMI control panel complete with accessories as per specifications. 5 Chilling machine described above, as per specifications and complete in all respects for the operating parameters as given under. 6 Cooling Capacity (Actual): 145 TR 7 Type of Refrigerant : R-134a 8 Chilled Water In Temperature: 12.22 Deg C 9 Chilled Water Out Temperature: 6.67 Deg C 10 Fouling Factor:0.0005 FPS 11 Design Air Entering Temperature:50 Deg C 12 IKW/TR on design conditions shall not exceed (100% load) 1.35 for complete unit. 13 a) Factory Test point at site/design Condition are following. 14 1) 100 % Load 15 2) 75% Load 16 3) 50% Load 17 4) 25% Load 18 Chilling machines as described above (2W+1S) 19 Primary Chilled Water Pumps Supply, installation, testing and commissioning of End suction back pull out type chilled water circulating pump sets complete with coupling,T.E.F.C. motor, base plate, mechanical seal, Priming Funnel , air vent cock etc. as per specifications and drawings. Chilled water 821 LPM, (216 GPM)at head 15 mtr. 20 Secondary Chilled Water Pumps Supply, installation, testing and commissioning of variable speed pumping system consisting of the following: End section circulating Pump sets complete with coupling, T.E.F.C. motor, base plate, Priming Funnel, air vent, air cock etc. as per specifications and drawings having capacity 1232 LPM (324 GPM) at 20 m head. 21 Adjustable variable frequency drive suitable for pump and to be suitable for inter facing with other system components & Auto/ Manual changeover arrangement. Differential pressure sensor. Microprocessor based logic controller common for above pumps complete with necessary software duly downloaded. 22 Air Handling units (Ceiling suspended type) Testing and commissioning of factory built floor mounted chilled water double skin type horizontal/vertical air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with polyurethane foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend GSS/PVC eliminators, cooling coil section with aluminium finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 6 row deep, filter section with 50mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with TEFC drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for varialbe frequency drive applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.)and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration isolation arrangement etc. complete as per specification and of following capacities. 23 8500 CMH 24 6800 CMH 25 3400 CMH 26 2040 CMH 27 Treated Fresh Air Handling Units (TFA) : Providing and fixing of unitary type double skin treated fresh air handling units complete with thermal break profiles, 50mm thick insulated panels, fan, cooling coil section with coil, filter section with filters, fan motor, drive set, mounting base damper etc. as per specifications and drawings. 4000 CMH, 8 row deep coil cooling. 28 Providing and fixing fan coil unit complete with fan section, fan motor, Cooling Coil, Filter Selection with standard filters, fan motor, drive belt, fresh air damper 2-way motorised control valve etc. as per specification and drawings 29 3 TR 30 2.5 TR 31 2.0 TR 32 1.5 TR 33 1 TR 34 INSULATED CHILLED WATER PIPING (Nitrite rubber insulation)Supplying,laying/ fixing, testing and commissioning offollowing nominal sizes of chilled water piping inside the building (with necessary clamps, vibration isolators and fittings but as excluding valves, strainers, gauges etc.) duly insulated with following closed cell elastometric nitrile rubber of minimum 45 kg/cu m density, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class O insulation applied by suitable adhesive complete including repariring of damage to building etc. as per specifications and as required complete in all respect. Note:- the pipes of sizes 150mm & below shall be M.S. C class as per IS: 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35 mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7 mm thick MS sheet for pipes of 400 mm dia and above. 35 200 mm dia(32 mm thick insulation) 36 150 mm dia(32 mm thick insulation) 37 125 mmdia(32 mm thick insulation) 38 100 mm dia(32 mm thick insulation) 39 80 mm dia(32 mm thick insulation) 40 65 mm dia(32 mm thick insulation) 41 50 mm dia(32 mm thick insulation) 42 40 mm dia(32 mm thick insulation) 43 32 mm dia(19 mm thick insulation) 44 25 mmdia(19 mm thick insulation) 45 INSULATED VALVE:-Supplying,fixing, testing and commissioning of following valves, strainers, gauges in the Chilled water plumbing duly insulated to the same specifications as the conncected piping and adequately supported as per specifications.Butterfly Valve (Manual) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water circulation as specified. 46 125 mm 47 50 mm 48 32 mm 49 25 mm 50 Supplying,fixing, testing and commissioning of following valves, strainers, gauges in the Chilled water plumbing duly insulated to the same specifications as the conncected piping and adequately supported as per specifications.Balancing Valve with Built in Measuring Facility with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled/hot water circulation as specified. 125 mm 51 Supplying,fixing, testing and commissioning of following valves, strainers, gauges in the Chilled water plumbing duly insulated to the same specifications as the conncected piping and adequately supported as per specifications.Non Return Valve with dual plate of CI body and SS plates vulcanized NBR seal flanged and PN 16 pressure rating as specified. 125 mm 52 Supplying,fixing, testing and commissioning of following valves, strainers, gauges in the Chilled water plumbing duly insulated to the same specifications as the conncected piping and adequately supported as per specifications.Y - Strainer of Ductile CI Body flanged ends with stainlesssteel strainer for condensor water circulation as specified. 125 mm 53 Supply and fixing of the industrial type pressure gauges with gun metal / brass valves complete as required. 54 Supply and fixing of in position the mercury in glass industrial type Thermometers. 55 Flow Switches 56 Auto Air vent 25 mm dia 57 Providing & fixing of motorized 2-way modulating valves for AHUs. Flow Rate 25-39 USGPM 58 Providing & fixing of motorized 2-way Modulating valves for FCUs. 59 Expansion tankProviding and fixing HDPE open Expansion Tank with 50 MM thick insulation and cladded with 26 G aluminium cladding as per specifications and drawings. Size : 1000 liter Capacity 60 Pipe Cladding Aluminum cladding with 0.5 mm aluminum sheet with 50mm overlap on joints and fixed with self-allaying screws etc. as per specificationsand drawing. Aluminum cladding on pipes. 61 Drain Piping:Providing and fixing pipes with all necessary fittings, supports and insulations.PVC pipe with 06 mm nitrile insulation complete with fittings, supports, valves and Insulation as per specifications and drawings. 62 40 mm 63 32 mm 64 25 mm 65 Ducting:Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.63 mm sheet 66 Duct Acoustic Lining : Supply and fixing of acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having density of 32 kg/m³, with 25 mm X 25 mm GI section of 1.25 mm thick, at 600 mm centre to centre covered with Reinforced Plastic tissue paper and 0.5 mm thick perforated aluminum sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX compound etc. complete as required and as per specifications 25 MM thick 67 Duct Insulation : Supply, installation, testing and commissioning of glass wool insulationwith factory faced aluminium foil, chicken wire netting aluminium adhesive tape etc. on ducts complete as per specifications and drawings. 25 MM thick 68 Providing and fixing extruded vertical Aluminum grilles duly powder coated as per specifications and drawings. 69 Aluminum linear supply air grilles with damper 70 Aluminum linear supply air grilles without damper 71 Volume Control Dampers 72 Fire Damper: Providing and fixing duct/wall mounted galvanised sheet fire damper with limit switch as per specifications and drawings 73 Motorised spring return actuator for Dampers with control panels. 74 Thermostat : Proportionating thermostat (Cooling/ Heating) 75 Pressurization Blowers :Providing and fixing of SISW blower, complete with drive, base, motoretc. as per specifications and drawings. 5,100 Cubm/Hr. 76 Fresh Air Louvers: Providing and Fixing of extruded aluminium louvers with frame manual damper birdscreen, etc. as per specifications and drawings. Fresh air louver & bird mesh screen as per specifications 77 Acoustic treatment : Supplying, fixing acoustic lining on wall and ceiling of AHU rooms with 50mm thick, density 32 kg/cu.m resin bonded glass fiberinsulation friction fixed in 610mm x 610 mm frame work made of 25X50X50X50X25 mm made out of 0.6mm thick GI sheet U shaped channel and covered with reinforced fiber glass tissue and finished with 0.80 mm perforated aluminium sheet etc. complete as required and as per specifications. 78 Electrical Control Panel:Supply, installation, testing and commissioning of main panel boards made of 2.0 mm thick steel sheet duly power coated complete with voltmeter, ammeter, indicating lights, selection switch, incoming/ outgoing isolators, current operated single phase preventor, power contactors, A/M Switch for remote controls operation complete as per specifications and drawings and as required. 79 Main A.C. Panel-p1 Incomer 1 No.1600 Amps ACB, TP+NL1 No. voltmeter with selector switch 1 No.CT operated ammeter with selector switch 3 Nos. phase indicating lampsBus bar1 No. 1600 Amps aluminium bus bar duly sleevedOutcomer3 No. 400 Amps MCCB TP+NL for air cooled chillers4 No. 16 Amps MCB TP+NL for primary chilled water pumps4 No. 40 Amps MCB TP+NL for secondary chilled water pump Nos. VFD starter5 No. Digital type ammeters 10 No. ON/OFF push buttons 10 No. ON/OFF indicating lights 80 Panel p2 (TFA)1 No.32 Amps ACB, TP+NL outgoing 1 No. automatic DOL starter1 No. Single phase preventer1 No. Digital type ammeter 2 No. ON/OFF push buttons2 No. ON/OFF indicating lights 81 Panel P3 (AHUs 0.75 KW motor)1 No.32 Amps MCB TP+NL incoming 2 No. 16 Amps MCB TP+NL outgoing 2 No. automatic DOL starter2 No. single phase preventer1 No. Digital type ammeter 4 No. ON/OFF push buttons4 No. ON/OFF indicating lights 82 Providing and fixing pvc insulated armoured aluminium conductor cables from main panel boards to various equipments through wall/ celling with appropriate clamps and fixing arrangements etc. as per specifications and drawings. 83 3.5 Core -185 sqmm (Aluminium Armoured Cable ) 84 3 Core -4 sqmm (Cu Arm Cable ) 85 4 Core -1.5 sqmm(Cu Arm Cable ) 86 Control cabling: 4 Core -2.5 sqmm (Cu Arm Cable ) 87 Double earthing continuity conductors between panel boards and Equipments as required and as per I.E. rules 1956. 8 SWG G.I Wire. 88 G.I. Strip of size 25X6 MM as required from Panel to chiller and Boiler. 89 PART D - Comprehensive Annual Maintenance Contract - 5 years 90 1st Year after expire of warranty 91 2nd year after expire of warranty 92 3rd Year after expire of warranty 93 4th Year after expire of warranty 94 5th Year after expire of warranty 95 Part E- Buy Back 96 Buyback for dismantled Material (To kept by the Contractor) including dismentling and Shifting of following material. All material consider to be as assorted. 145 TR x 3 Air cooled Chiller Plant including Pumps, piping , Electrical Panel, AHU, FCU extra.
