Indian Institute Of Technology Tender
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The IIT has issued a formal invitation for competitive bids for the Indian Institute Of Technology project, for Augmentation Of Facilities At Cfi Lab By Completely Replacing The Existing Structure In Central Workshop At Iit Madras Sh Provision Of Hvac System in Chennai, Tamil Nadu, with an estimated contract value of Rs. 2,19,53,000. The bid opening date for this tender is 31-03-2022 and the last date for bid submission is 19-04-2022. Interested bidders for Indian Institute Of Technology tender can download the important documents here to check the scope of work, eligibility criteria and technical requirements.
Indian Institute Of Technology - IIT Tender
Civil And Construction
Building Construction
Eprocure
Opening Date31 Mar 2022
Closing Date19 Apr 2022
Tender Amount₹ 2,19,53,000
Costs
EMD
₹ 4,39,060Document Cost
Refer DocumentsTender Fee
Refer Documents
Description
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Contact
Tender Id
2022_IITM_111684_1Bid Award Id
ViewTender No
22/2021-22/ELDBTender Authority
Indian Institute Of Technology ViewPurchaser Address
-Website
http://https://www.iitm.ac.in
GEM & Bid Advisory Services
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Documents
BOQ Items
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BTU METER :
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1 Set- Lubrication device consisting of automatic oil cooler, head tank, oil strainer, automatic pressure regulating valve, oil heater, oil heater thermal switch etc. as per specificaitons.
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15mm thick
100
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Supplying, Installing, testing & commissioning of Screw type water chilling machine with water cooled condenser each having a capacity of 300TR actual capacity at chilled water inlet/ outlet temperature of 55.4 deg.F/ 42.8 deg F. with chilled water circulation rate of 570 USGPM and condenser water inlet/ outlet temperature of 90 °F / 100 °F with circulation rate of 900 USGPM suitable for stepless continuous capacity from 100% to 20% and operation on refregerant R-134a only for screw type machine each comprising of the following complete as per specifications and as reqd. chiller fouling factor shall be 0.0005 FPS and condenser fouling factor shall be 0.001FPS. KW/ton at ARI condition shall be ≤ 0.620. IPLV at ARI condition shall be ≤ 0.54
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Lot- Suction line and chiller insulation with minimum 19mm thick polvinyl nitrile rubber insulation finished with 0.63mm thick G.S.S. cladding complete as required.
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3.5 Core 185 Sq.mm XLPE aluminium armoured Cable
100
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The quoted rates under pipes section shall inclusive of all necessary fittings like bends, elbows, Tee, etc and inclusive of making hole in the wall, chasing, chipping, making good with plastering after completion of work, pipe sleeve of suitable higher size, sealing the sleeves with glass wool & 2 hour fire sealant, makings provisions for BAS field devices/sensors, supports for piping like steel supports like MS plate, angles, channels, clamps, anchor fasteners, tie rods, brackets, nuts and bolts, etc as shall also be included in the quoted rate. Pipes shall be new and from standard manufacturers pipes shall be given one primary coat of red oxide paint before being installed, hot dip galvanised nuts and bolts, required RCC/PCC pedestals & pipe thickness to be follow as per specification
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Supply, installation, testing and balancing of Air Distribution System consists of factory fabricated Rectangular duct Galvanized Iron sheet metal ducting (Zinc coating 120GSM) with TDF/TDC flanges
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AIR HANDLING UNITS-(At CFI GF to 2F)
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AHU will be mounting on 25 mm neoprene rubber for anti vibration
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Excavation for cable trenches in hard rock like bitumen road/RCC flooring, depth upto 1.2 m including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres.
200
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Note: The colour shade for the air distribution equipments like ducts, diffusers, grilles, etc shall be approved by the Client / Architects before procurement and execution. The powder coating shall be 50 to 40 microns
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Drain pan in 16G SS 304 construction along with 25mm nitrile rubber insulation with smooth finish and slope should be provided to have zero retention of water in drain pan. The insulation shall be sandwiched between to sheets of SS 304.
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32NB - Lever operated
6
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Unit shall be provided with flanges and low leakage extruded motorised aluminum volume control dampers with positive locking arrangement and percent opening gradations on supply side, return side, fresh air side and purge side in loose condition.
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Supply and erection of ‘Y’ type strainer with removable stainless steel screen with 3mm perforation and permanent magnet, drain piping. Rate shall inclusive of matching flanges, additional supports, fixing accessories, thermal insulation, etc.
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Variable Air voulme Terminal units (VAV) :
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Supply and installation of Powder coated extruded aluminium continuous linear grilles/diffusers without volume control damper for exhaust /Return air Grille.
38
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100 NB pipe with 50mm thick PUF insulation
12
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Suitable capacity squirrel cage induction motor with class 'F' insulation suitable for operation on 415±10% volts, 3-phase, 50Hz A.C. supply.
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Earth work excavation
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2301 - 3200 CFM
9
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Necessary drive arrangement
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HVAC - ELECTRICAL WORKS
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200 mm dia NB
90
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801 - 1200 CFM
3
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Supply, Delivery, Installation, testing & commissioning of Floor mounted Air handling units in Re-circulatory configuration with 24G (0.64mm) pre-plasticised G.I. outer skin and 22G (0.8mm) plain G.I. inner skin with 40kg/m3 density Polyurethen Foam/PIR insulation having thickness 43±2mm in double skin construction as per air flow diagrams & specifications with following accessories. AHU cost will be inclusive of lifting & putting inplace.
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Supply, installation, testing and commissioning of BTU meter as indicated in the drawings. BTU meter shall comprises of flow meter, temperature sensors, thermo wells, digital display and all necessary accessories/mechanical installation hardware to complete the BTU meter installation. BTU meter shall be provided with necessary isolation valve. BTU meters with the provision for Modbus integration with the IBMS system along with all integration software, fixing accessories . The necessary control wiring, power wiring from the HVAC control panel shall be included. Isolation inline valve shall be provided as part of the BTU Meter.
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Supply and fixing of Acoustic insulation - Material shall be FM approved, open cell Nitrile Rubber foam. The density of the same shall be within 140-180 Kg/m3. The maximum surface temperature the material should withstand is 105º C and minimum temperature should be -20ºC. The material should conform to Class 1 rating for surface spread of Flame as per BS 476 Part 7. The Thickness of the insulation material shall be as follows
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Supplying, installing, testing and commissioning of Pressure Independent Variable Air voulme Terminal units, suitable for installtion in horizontal ducts. The casing shall be double skin acoustically lined and constructed with galvanised sheet steel.Should include all accessories such as single / multileaf damper (with equal % characteristics) etc. actuators,controller capable of accepting analogue signal from CO2 sensor , control cabling , thermostat , feed back control cabling upto VFD panel / DDC Panel in AHU room and any other ancilary requirement for the functioning of the units. Cost of duct mounted Diff. pressure transmitters with cabling upto VFD panel shall also be included. VAV boxes shall be suitable for following air flow capacitties.
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Additional Safety Devices shall include Internal Thermostat for Compressor Motor, Fusible Plug, Discharge Gas Thermostat, Operation Hour-Meter etc.
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AHU shall be supplied with Stand-alone operation controller with built in applications inclusive of sensors, sensor cables & DP transmitter complete with DDC controller, It Should be compatible with BMS System as per technical specification
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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 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.
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150 NB pipe with 50mm thick PUF insulation
40
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50 NB
6
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0.8mm thick GSS ducting (22G) – factory fabricated
336
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Smoke & Fire Dampers.
16
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Flange type filters with extruded aluminum flanges along with quick filter fixing arrangement with SS 304 wing nuts.
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125 NB
2
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Toilet Exhaust - 500 CFM
3
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Powder coated/Anodized extruded aluminium construction.
7
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Supply and installing of Thermal insulation, Material shall be processed FM approved Crosslinked polyolefin foam with factory applied reinforced aluminium foil. The material should be fibre free. The Thickness of the material shall be as follows.
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Capacity: 15.0 TR, Dehumidified Air: 7800 CFM, AHU with 65mm Static Pressure (Valve Sizes 50 MM)
4
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80 NB
4
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VOLUME CONTROL DAMPER :
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150 NB
4
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Supply, installation, testing and commissioning of Balancing Valve shall be of factory calibrated direct, acting, automatic pressure compensation type. Each valve shall limit flow rates to within ± 5 % accuracy, regardless of the system pressure fluctuations. Rate shall inclusive of additional supports, fixing accessories, thermal insulation, etc.
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Supply and erection of Ball valves as per specification complete with end flanges / matching flanges, additional supports, fixing accessories, thermal insulation, etc.
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Supply and erection of Butterfly valves(PN 16) as per specification complete with end flanges / matching flanges, additional supports, fixing accessories, thermal insulation, etc. The valve shall be gear operated for 200NB and above.
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100 NB
2
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Supplying, laying/ fixing, testing and commissioning of following nominal sizes of Pre insulated HDPE chilled water piping in the excavated trench with necessary supports to mount the pre insulated pipes on the RCC block of adequate numbers, size and height, vibration isolators and fittings but excluding valves, strainers, gauges, earth work excavation etc. duly factory pre insulated with 50mm thick Polyurethene foam minimum 36 Kg / cu m density, required accessories, field joint components,outer covering with HDPE jackets etc as per specifications and as required complete in all respect.
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Supply, Installation, testing and commissioning of Flow Control Valve - Pressure independent type with Dynamic Balancing Cum 2 Way modulating valves (PN-20) for AHUs with actuator in a single Unit of Valve provided with spring return function. The valve shall be suitable for standalone operation. Valve shall be of PN16 Rating. The BMS compatible actuator shall be supplied by the valve manufacturer and capable of accepting 2-10VDC / 4- 20 mA electric signal and shall provide similar transduced feedback output signal to control system. The minimum close off Pressure of actuator must be 1.5 times shut off head of pump as per specifications. Rate shall be inclusive of stepdown transformer, digital thermostat (modulation type) suitable for the given actuator, required length of 2Cx1.5Sqmm shielded communication cable, end flanges/matching flanges, additional supports, fixing accessories, dismantling the existing valves, thermal insulation, etc
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Supply, erection, testing and commissioning of chilled water circulation pipes. Pipes will be of Mild Steel - Class C and insulation material shall be PUF. The insulation material shall be covered with 24G Aluminium cladding for outdoor application
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Supply and erection of SS Glycerine filled Thermometers with copper separable well complete with guard mounted on water lines, etc.
30
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Supply, erection, testing and commissioning of pre-insulated pipes for chilled water circulation pipes. Pipes will be of Mild Steel - Class C and insulation material shall be PUF. The insulation material shall be covered with 26G GI sheet for indoor application
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250 NB pipe with 50mm thick PUF insulation
36
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Supply and laying of following size XLPE / PVC (FRLS) insulated armoured cables with aluminium / copper conductors partly laid in existing cable tray and partly laid in wall/ ceiling with suitbale clamps for working voltages up to and including 1100V conforming to IS 1554 part I 1988 for PVC and IS 7098 Part I for XLPE. Rate shall inclusive of single compression / double compression (weather proof glands-Only for outdoor termination) with suitable size PVC boot and suitable crimping socket, gland earthing by using copper flexible and all other necessary accessories . (copper sockets for copper cables and aluminium sockets for aluminium cables)
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Adaptor box required for the feeder connection.
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Fire retardant flexible canvas connection and cushy foot mounting for fan
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200 NB pipe with 50mm thick PUF insulation
120
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COOLING THERMOSTAT :
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Supply and erection of 25 NB Automatic Air Vents along with ball valve
25
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Victualic/equivalent grooved coupling.
1
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Supply, installation, testing and balancing of weather proof louvers with bird screen for fresh air / exhaust air as per specifications and approved drawings.
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150 mm x 50mm Perforated type cable tray along with top cover
100
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Cable Trays / Accessories and Supports
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PIPES AND VALVES
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Supply and installation of 25mm thick Nitrile Rubber for under deck insulation for the Air conditioned area roof exposed to sun
950
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SUPPLY AIR GRILLES :
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Supply and fixing of Acoustic lining of wall and ceiling of AHU rooms with 50mm thick density 32Kg/Cu.m resin bonded glass fibber insulation friction fixed in 610mm X 610mm frame work made of 25X50mm made out of 0.6mm thick G.I Sheet U shaped channel and covered with reinforced fibre glass tissue and finished with .80mm perforated aluminium sheet etc. Complete as per Specifications.
625
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150 NB
2
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LOUVERS :
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Supply, installation, testing and balancing of powder coated Extruded Aluminium supply air Grilles/diffusers with volume control dampers in accordance with the approved shop drawings and specifications. Collar are to be fixed properly to the Grilles without any gap for leakages with adjustable double louvers powder coated extruded aluminium.
28
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AHU frame shall be made of non corrosive extruded aluminum profile fitted together with polyamide corner pieces.
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150 mm dia NB
200
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25NB - Lever operated
18
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The air distribution system comprises with all supports like anchor fasteners and tie-rods, cradles, angle iron supports, bolts and nuts, 4mm thick self-adhesive neoprene rubber gasket, stiffeners, zinc chromate painted angle iron flanges, chipping and plastering of openings made for duct supports etc., filling the gap with fibre glass wool and with fire sealant complete as per specification. The rates quoted shall include turning vanes, straightening vanes, splitters, inspection doors probe, provisions for BAS sensors, inlets with test openings enclosures complete with locking caps, chain, gaskets, insulating plugs, and extension for insulated ductwork etc.
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1 No.- Matching shell and tube DX / flooded type chiller for screw type units of MS shell and copper tubes.
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40NB - Lever operated
6
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65 NB
14
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Design, Supply, installation, testing and commissioning of motorized Fire damper in supply air/return air/exhaust air streams. The damper shall be made out of 16G thick galvanized sheet steel frame and blades of 16G galvanized steel with air tight arrangement. The damper shall be provided with control panel, BMS compatible actuator of the motorized Damper shall have required torque to ON / OFF the actuator with 220 V / 24 V transformer duly encased and wired, combined smoke and heat sensor and transmitters, control / communication cables, etc. The control panel shall be suitable for receive/send signal from the Fire Alarm System and status shall be monitored thru BMS.
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Supply and laying of 25 x 5mm copper strips for equipments earthing including termination with in both ends
100
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BMS compatible Actuators with Control Panel & Wiring
9
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Electrical Room Exhaust - 400 CFM
3
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50 NB
3
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3 Core 4 Sq.mm PVC Copper armoured Cable
100
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AHU shall be with Multiple electronically communicated (EC) motor plug type Fan with an integrated frequency converter for step-less load control, having impeller with low aerodynamic losses, silent operation & high efficincey
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Capacity: 28.0 TR, Dehumidified Air: 11000 CFM, AHU with 65mm Static Pressure (Valve Sizes 65 MM)
2
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50 NB pipe with 30mm thick PUF insulation
72
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Toilet Exhaust - 100 CFM
1
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3201 - 4650 CFM
3
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UVGI system with dish antenna shaped parabolic reflectors and minimum UV intensity 400 μw/cm² on coil. With BMS compatibility. As per technical specification.
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250 - 600 CFM
1
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25 NB pipe with 30mm thick PUF insulation
3
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1501 - 1850 CFM
5
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Supply and laying of 6 sq.mm single core copper FRLS unarmoured cables for equipments earthing including termination with copper lugs in both ends
500
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601 - 800 CFM
2
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Integrator as described above for above VAV Boxes (5 soft points to be consider for each VAV).
1
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125 NB pipe with 50mm thick PUF insulation
70
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1 Set- Microprocessor based control panel with alpha-numeric display in English for all operating parameters such as supply voltage, frequency, load current, chilled water inlet, chilled water outlet, condenser inlet and outlet temperature parameters, operating pressures etc. complete with accessories as per specifications.
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BMS interface unit (Tracer / Micro gateway / Data link).Control panel should be with open protocol like Modbus RTU/ Bacnet/ Lon work for integrating with BAS.
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Supply, installation, testing and commissioning of INTEGRATOR for VAV boxes, capable of giving industry standard ((Modbus / Lon Works / Bacnet)) output to BMS system. Mapping shall be required for monitoring individual room temperature for areas conditioned through VAV boxes. Quoted price shall be inclusive of wiring in PVC conduit between integrator and individual VAV Boxes duly terminated in BMS room Located at 3rd floor/GF.
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Supply and erection of the following UPVC pipe with all joints, reducer, necessary elbows and tees, supporting arrangements, etc. Rate shall be inclusive of 19mm thick FM approved closed cell nitrile rubber insulation covering with fire resistant fibre cloth fabric as a resistant to Scratch & Mechanical Impact.
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65 NB
3
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Return Air Grilles
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Lot- Refrigerant line accessories comprising of safety valves, angle valve, liquid line indications, liquid level control etc.
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Pre insulated Chilled Water Piping
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AIR DISTRIBUTION SYSTEM-(At CSB GF to 3F) & (ESB-II Block)
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Lot- Water flow switches at inlet and outlet of condenser & chiller, water drain & air purge valves wherever required.
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Chilled water cooling coil shall be of copper tubes with aluminum fins and 4 / 6 rows deep suitable for chilled water operation.
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1851 - 2300 CFM
3
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All AHU's will be supplied with two sets of filters. One set will be for Pre commissioning & one original set of post commissioning Filters shall be EU-4
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1201 - 1500 CFM
6
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Excavation for cable trenches in soft soil, depth upto 1.2 m including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres.
600
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200NB
2
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WATER COOLED CHILLER
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Capacity: 30.0 TR, Dehumidified Air: 12000 CFM, AHU with 65mm Static Pressure (Valve Sizes 65 MM)
1
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All valves on pre-insulated pipe shall have extented shaft for ease of operation
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200mm dia
1
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Supply, installation, testing and commissioning of COOLING THERMOSTAT with Power / Control Cabling for various air handling units and fan coil units as described in specifications. The thermostat shall be proportionately type for modulating control valve with digital temperature indicator. Receiving at site the imported equipment, unloading, storing, handling hoisting, installing in position, effecting connections, anchoring, grouting testing and commissioning the equipment including supplying & installing all necessary indigenous accessories as required to complete the installation.
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150 mm dia strainers
1
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1 No.- Matching shell and tube water cooled condenser of M.S. shell and copper tubes.
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Capacity: 20.0 TR, Dehumidified Air: 8850 CFM, AHU with 65mm Static Pressure (Valve Sizes 50 MM)
2
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40mm Dia
32
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65 NB pipe with 30mm thick PUF insulation
66
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Shifting and locating the chillers to the terrace level as indicated in the drawings. (30.5m from the formed ground level).
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Supply and erection of SS Glycerine filled Pressure gauges complete with ball valve, mounting well, fittings and copper tubing extension where required
30
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Supply and erection of Metallic-Rubber bellow flexible connections of suitable pressure rating to be installed at equipments suction, discharge and at of 150mm dia.pipes crossing building expansion joints.
2
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0.63mm thick GSS ducting (24G) – factory fabricated
825
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Lot- Initial / first charge of refrigerant gas & compressor oil
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Supplying, installing, testing and commissioning of INLINE FANS suitable for installing in any position in vertical or horizontal ducts. The casing shall be double skin, internally acoustically lined and constructed of galvanized steel. The fan shall be DIDW with forward curve impeller fitted with maintenance free external rotor motor. The motor shall be suitable for single phase 50 cycles AC supply The motor shall be suitable for 220 V + 10% volts 1 phase 50 cycles, AC supply, EFF-CLASS 1. The fan shall be low RPM and capacities based on 20mm static pressure for exhaust. All units shall be complete with duct flexible connector. The total static pressure shall be checked by the contractor. The fans shall have the casing fabricated out of hot dipped galvanized metals with edges treated for corrosion resistance.
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50 NB
6
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200 mm x 100mm Perforated type cable tray along with top cover
60
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EARTHING
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Inlet and outlet connection of chilled water shall be on same side.
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4801 - 5600 CFM
2
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1.0mm thick GSS ducting (20G) – factory fabricated
95
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50mm Dia
44
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3 Core 6 Sq.mm XLPE Copper armoured Cable
150
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Supply and Installation of the following Cable Trays / Accessories Prefabricated hot dip galvanized 1.6mm thick sheet perforated / Ladder type cable tray including all necessary curved bends-tees-reducers, coupler plates, fasteners etc.,for the following sizes. Inclusive necessary fixing arrangement etc.
-
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200 NB
2
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Machineries & Equipments
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Multiple number twin screw type helical rotary compressor semi-hermatic complete with automatic capacity control, safety switches, speed increasing gears, forced feed lubrication system etc. as per specifications.
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Commissioning of above chillers with existing Chiller Plant Manager to control and monitor. Necessary hard ware / software for transfer of entire signal to the third party BMS System and the output protocol shall be either BACnet or Modbus. The CPM has the provision to do sequencing, scheduling, load sharing between chillers etc., as specified and should be considered in the part of chiller supplier scope.
1
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Soft starter suitable for compressor motor complete with ammeter with CTs, over load protection, under voltage protection, protection against phase reversal, independent single phase preventors, timer control & trip circuit with sensing elements for HP/LP/Anti-Freeze etc. complete as required. Starting current should be less than 2 times of full load current.
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AHU shall be along with EC Motor & Electrical cable connection from starter panel consisting with stand alone controller to AHU shall be done by HVAC contractor.
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AHU shall be with Wall mounted type Starter Panels located in respective AHU Rooms. The panel enclosure shall be same as for MCCs. (The Starter Panel shall consist of MCCB, Power Contractor,Overload Relays,Single Phasing Prevent er, Timer,Relays, Auto Manual Switch, Luminous ON/OFF Push Buttons, Internal Wiring, Connectors for power & Control cables & Other panel accessories to make the panel complete.) Panel Should be compatible with BMS System.
All internal wiring in the AHU should be as per Firenorms
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4651 - 4800 CFM
1
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Horizontal Floor Mounted AHU-(At GF to 2F)
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1 Lot- Refrigerant piping fittings, valves and accessories to inter connect compressor, condenser, chiller and expansion valve.
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Supply, installation, testing and commissioning of Two way motorized Valves (ON / OFF Type) provided with spring return function in chilled water lines at chillers and condenser water line at cooling towers. The BMS compatible actuator of the motorized valve shall have required torque, the actuator with 220 V / 24 V transformer duly encased and wired. The motorized valve & actuator shall be provided with necessary communication cables, hardware, converter, thermal insulation, weather proof construction, etc
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5601 - 6500 CFM
2
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7 Core 1.5 Sq.mm PVC Copper armoured Cable
150
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Lot- Frame work (including victaulic couplings at the inlet & outlet of cooler & condenser with its spoll pieces; & painting of all components) for mounting the above condenser, chiller compressor and motor with base plate complete with antivibration pads/ springs.
-
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32mm Dia
68
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50NB - Lever operated
25
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13mm thick
1200
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Supplying & fixing of opposed blade volume control dampers in supply air duct collars as per approved drawings and specifications. Damper shall be with 18G GSS body and blades shall be with aluminium airfoil construction.
22
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Refrigerant piping shall be factory assembled as per the specifications.
-
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65 NB
7
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The fan shall have low sound level exceeding not more than 60 DBA at one meter distance.
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80 NB pipe with 50mm thick PUF insulation
60
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CABLES
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Thermal break profile at corners and at joints for double skin air handling units along with internal covings.
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Evaluation Notes How It Works ?
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