Public Works Department-PWD has published Tender For Supply Installation Testing And Commissioning Of Screw Chiller 100 Tr For Ac Plant At Ravindra Bhavan Margao. Submission Date for this Tender is 09-08-2023. HVAC Tenders in margao Goa. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 26-Jul-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 09-08-2023 |
| Sl. No. | Item Description |
| 1 | Supply, Installation, Testing and Commissioning of water cooled screw chiller complete with semi hermetic screw compressor with motor, star delta starter, water cooled condenser and insulated evaporator with enhanced copper tubes, flow switch for evaporator and condenser, vibration isolators, integral refrigerant piping and power / control cabling from starter to unit, Victaulic couplings for condenser and evaporator water in/out connections, complete charge of refrigerant and oil, all accessories as required with safety controls mounted in central micro-processor based unitmounted control panel. Motor shall be suitable for 415 V ±10% 50 Hz. 3 phase 4 wire AC supply. Refrigerant used shall be Ozone friendly HFC-134a only. Capacity - 100 TR Chilled water In / Out Temperature - 12 / 7 Deg C Condenser water In / Out Temperature - 32 / 36 Deg C Evaporator Fouling - 0.0001 FPS, Condenser Fouling - 0.00025 FPS Make - Kirloskar |
| 2 | Supply of 31/2 core armoured PVC/XLPE insulated PVC sheated aluminium conductor cable of 1.1 kv grade with ISI mark conforming to IS:1554(Part 1) IS:7098(Part1)with latest ammendments of the following size |
| 3 | 31/2 core 95 sqmm |
| 4 | Laying of one number pvc insulated and pvc sheated/Xlpe power cable of 1.1 kv grade of size not exceeding 25 sq mm but not exceeding 120 sqmm in the existing masonary open suct etc. complete as required. |
| 5 | SECTION (B) CHILLED WATER AND COOLING WATER PIPING |
| 6 | Supply, Installation, Testing & Commissioning of ERW C Class MS pipes as per IS-1239 upto 150 mm dia. and above 150 mm dia. as per IS-3589 with 6 mm wall thickness complete with necessary MS pipe supports chanels for vertical pipes only,fittings like bends, elbows, tees, reducers, matching flanges, gaskets, nut,blots & washers etc. & necessary sockets for BAS, socket and fittings for instruments and sensors connections etc. All piping should be painted with 2 coats of anti-rust zinc cromate primer. This Piping to be insulated with insulation of 19 mm thick closed cell Nitrile Rubber class O. The pipe insulation shall be covered with 1 mm thick polythene sheets double wrapped and held with PVC tape and then covered with 26 Gauge Aluminum cladding. |
| 7 | 100 NB |
| 8 | Supply, Installation, Testing & Commissioning of Chilled Water Circuit Valves & Gauges with insulation as per chilled water circuit as below |
| 9 | butterfly Valve 100 NB |
| 10 | Balancing Valve 100 NB |
| 11 | Anti Vibration Bellow 100 NB |
| 12 | Temperature Gauges with Oil filled Thermowell. |
| 13 | Pressure Gauges with SS Siphon & Ball Valve.( Glycerin Filled 200 NB dia. Dial) |
| 14 | Drain Valve 25 mm |
| 15 | supply, Installation, Testing & Commissioning of the ERW C Class MS pipes as per IS-1239 upto 150 mm dia. and as above 150 mm dia. as per IS-3589 with 6 mm wall thickness complete with necessary MS pipe supports chanels for vertical pipes only,fittings like bends, elbows, tees, reducers, matching flanges, gaskets, nut,blots & washers etc. & necessary sockets for BAS, socket and fittings for instruments and sensors connections etc. All piping should be painted with 2 coats of anti-rust zinc cromate primer.All as per tender specifications. This Piping to be insulated with insulation of 19 mm thick closed cell Nitrile Rubber class O. The pipe insulation shall be covered with 1 mm thick polythene sheets double wrapped and held with PVC tape and then covered with 26 Gauge Aluminum cladding |
| 16 | 100 NB |
| 17 | Supply, Installation, Testing & Commissioning of Chilled Water Circuit Valves & Gauges with insulation as per chilled water circuit as below. |
| 18 | Butterfly Valve 100 NB |
| 19 | Balancing Valve 100 NB |
| 20 | Anti Vibration Bellow 100 NB |
| 21 | Temperature Gauges with Oil filled Thermowell. |
| 22 | Pressure Gauges with SS Siphon & Ball Valve. (Glycerin Filled 250 mm dia. Dial) |
| 23 | Ball Valve 25 mm |
| 24 | SECTION (C) CHILLED WATER AND CONDENSER WATER PUMPS |
| 25 | Supply and installation of chilled water pumps centrifugal Back ,pullout end section Flexible coupled supplied with cast iron housing,Bronze impeller & shaft seals with TEFC IE3 motor suitable for 3 phase 415 V +/- 10% 50HZ AC power supply mounted on common base frame etc having springtype isolators. |
| 26 | water flow rate for each pump 160 USGM |
| 27 | system head -20 meter |
| 28 | 2 nos not working & 1 standby |
| 29 | supply installation testing & commissioning of chilled water circuit valves & gauges with insulation as per chilled water circuit |
| 30 | butterfly valve 100 NB |
| 31 | Y-Strainer 100 NB |
| 32 | NRV 100 NB |
| 33 | Anti vibration bellow 100 NB |
| 34 | pressure gauges with SS siphon & Ball valve (Glycerin Filled 250 mm dia dial) |
| 35 | Supply ,installation testing and commissiong of condensor water pumps with centrifgal back pull out ,end suction ,Flexible coupled supplied with cast iron housing ,bronze impeller & shaft seals with TEFC IE# Motor suitable for 3 phase 415 v +\-10% ,50 HZAC power supply mounted on common base frame etc having spring type isolators |
| 36 | Water flow rate (each pump):-242 USGPM |
| 37 | System head :-20 Meter |
| 38 | (2 Nos working ,1-standby) |
| 39 | Supply ,installation ,testing & commissioning of condensor water circuit valves & gauges |
| 40 | Butterfly valve 100 NB |
| 41 | y-strainer 100NB |
| 42 | NRV 100 NB |
| 43 | Anti vibration Bellow 100 NB |
| 44 | pressure Gauges with SS siphon & Ball valve (Glycerin Filled 250 mmDia dial) |
| 45 | Supply of 3 core armoured PVC/XLPE insulated PVC sheated aluminium conductor cable of 1.1 kv grade with ISI mark conforming to IS:1554(Part 1) IS:7098(Part1)with latest ammendments of the following size |
| 46 | 3 core 2.5 sqmm |
| 47 | 3 core 4 sqmm |
| 48 | Laying of one number PVC insulated and PVC sheated/XLPE power cable of 1.1 KV grade of size not exceeding 25 sq mm in the existing masonary open duct ,etc complete as required |
| 49 | Supply and installing following size perforated type 16 SWG ,MS cable tray of GI pregalvanised/hot dip galvalised /powder coated finish ,in convinient sections ,joined with connectors ,suspended from the ceiling with suitable MS suspendors including bolts and nuts,painting suspenders etc complete as required. |
| 50 | 150 mm x 50 mm depth |
| 51 | Dismantling, Lifting and Shifting of existing 60 TR old chiller at a distance NMT 50 meters from plant room including installation of new 100 TR chiller on the platform. |
| 52 | Dismantling, Lifting and Shifting of existing 3 Noschilled water pumps and 3 nos condensor waterpumpschiller at a distance NMT 50 meters from plant room |
| 53 | Section (D) Electrical Work |
| 54 | Supply and erecting of 18 inch(450 mmsweep) exhaust fan with double ball bearings ,1400 rpm ,heavy duty ,complete with all accessories. |
| 55 | (a) cat A |
| 56 | installation,Earhing .testing and commissioning of exhaust fan upto 450mm sweep in the existing opening including making the hole to suit the size of the above fan making good the damage connections testing commissioning etc as required. |
| 57 | Supply and fixing of MCCB, 4 Pole, Adjustable type, 35 KA/40KA, 250 A-CAT B (including replacement of existing 125A MCCB in the Panel) |
| 58 | Section (E) Civil Work: |
| 59 | Felling trees of girth(measured at a height of 1. m. Above ground level) inluding cutting of trunks and branches removing the roots stacking the serviceable material and disposal of unserviceable material for all leads : |
| 60 | a) Beyond 30 cm and upto 60 cm grith |
| 61 | Demolishing laterite stone masonry in cement mortar including stacking of serviceable material & disposal of unserviceable material within 50 mts. lead. |
| 62 | Dismantling doors, windows and clearestory windows (steel or wood) shutters including chowkhats architrave holdfast etc. complete and staking within 50 mt. Lead |
| 63 | a) of area 3 sq.m. and below |
| 64 | 18mm cement plaster in two coats under layer 12mm thick cement plaster 1:5 ( 1 cement : 5 coarse sand) and top layer 6mm thick with cement plaster 1: 3 (1 cement : 3 coarse sand) finished with sponge. |
| 65 | Supplying and fixing rolling shutters of approved make, made of 80 x 1.25 mm M.S. laths interlocked together through their entire length and jointed together at the end by end locks mounted on specially designed pipe shaft with brackets, side guides and arrangements for inside and outside locking with push and pull operation complete including the cost of providing and fixing necessary 27.5cm long wire springs grade No.2 and M.S. top cover of 1.25mm thick for folling shutterstop cover and spring. |
| 66 | Applying priming coat with ready mixed primer of approved brand and manufacture on steel work. |
| 67 | Painting two or more coats (excluding priming coat) with superior quality ready mixed paint for steel work of approved brand & manufacture in all shades on new work to give an even shade. |
| 68 | Laterite masonry in neatly dressed stones of size as specified in cement mortar 1: 4 (1 cement : 4 coarse sand) in all sizes in superstructure from floor I level upto floor V level. |
| 69 | Providing & laying cement concrete 1:3:6 (1 cement: 3 coarse sand: 6 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: |
| 70 | b) In retaining walls , return walls(any thk) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping bed blocks, anchor blocks, plain window sills, fillets |
| 71 | 12mm cement plaster 1:3 (1 cement : 3 coarse sand) |
| 72 | Supply, Installation, Testing and Commissioning M S Structral supports, with 2 coats of Yellow oxide and 2 coats of marine epoxy paint. |
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