REPAIR REPLACEMENT AND MAINTENANCE OF CENTRAL AC PLANT 3 210 TR 15 TR OF JCB LAB AT M HOUSE AREA UNDER GE I RnD DELHI

M&L Epoxy protective coating on Copper piping system, Copper coils, headers (Discharge line, Liquid line, all open fittings of copper, suction line etc) for 3 x 210 TR AC plant Make : YORK complete all as specified and directed. Note: One circuit of chiller shall be measured one unit.

Supply and charging the refrigerant R-134a/410 for 3 x210 TR chiller type AC plant Make : YORK including testing complete all as specified and directed.

M&L for Monitoring through JCI professionals till completion of Combined Activity of gas recovery, pressure testing, vacuumizing and Refrigerant Charging (With Nitrogen) complete Make : YORK complete all as specified and directed.

Supply and topping up Glycol Propylene 5 Gal coolant of compressor for 3 x 210 TR AC plant Make : YORK complete all as specified and directed.

S& F in Replacement of Compressor oil (YORK OIL, L5 Gal Pail) for 3 x 210 TR AC plant Make : YORK complete all as specified and directed.

M&L for Servicing of complete AC plant 3x210 TR Make : YORK including electrical panels, VSD Panels & setting of all parameters all as per OEM complete all as specified and directed.

S&F FILTER DRIER 3/8 0RFS alongwith related accessories for 3 x 210 TR AC Plant Make : YORK for each circuit complete all as specified and directed.

S&F CTG DEHY 100 PERCENT MOLECULAR along with necessory testing for dehydrator for refrigrant circuit for 3 x 210 TR AC Plant Make : YORK complete all as specified and directed.

S&F Oil Filter alongwith ITC work for 3x210TR AC plant Make : YORK for each circuit complete all as specified and directed.

S&F O- RING size 2.62 x 81.97 mm for 3x210TR AC plant Make : YORK for each circuit complete all as specified and directed.

Supply & Fix in replacement of Coil Glycol YVAA alongwith related accessories for 3 x 210 TR AC plant . Make : YORK complete all as specified and directed.

M&L for overhauling of pump and motor 20 HP capacity by opening up and cleaning of all parts such as impeller , rotor, stator, fan cover, greasing including replacing all unserviceable/damaged part like impeller, bearing bush, seal, shaft, coupling, machine work etc and reconnecting back and testing complete all as specified and directed.

S& F in Replacement of Temprature Sensor NTC -50 to 105°C along with related assecories for 3 x 210 TR AC plant Make : YORK complete all as specified and directed. Note :- Item Ser No 1.00 to 11.00 & 13.00 is carried out through OEM/authorized vender of OEM.

Disconnecting, dismantling and strip opening of the existing air handling unit of any description and in any position and of capacity of 5500 CFM to 12000 CFM for overhauling and servicing, including cleaning of cooling coils with chemical including taking out existing shaft, blower drum, pulley and de-humidifier pump etc of air handling unit, checking thoroughly serviceability of the parts, fixing the serviceable parts in position, replacement of the defective/non functional/unserviceable parts/spares, reassembling, commissioning, fixing in position and testing of the air handling unit on full load for its smooth and trouble free operation complete all as specified and directed. Note : Spare parts i.e V- belt, filters for AHU, Bearing & pulley shall be measured and paid separately under respective items.

Supply only Bearing and bearing hub as per existing size suitable for AHU 5500 CFM to 12000 CFM complete all as specified and directed.

Supply only metal pulley with hub as per existing size suitable for AHU 5500 CFM to 12000 CFM complete all as specified and directed.

Supply only V belt of size A42 complete all as specified and directed.

Supply only V belt of size A43 complete all as specified and directed.

Supply only V belt of size A46 complete all as specified and directed.

Supply only V belt of size A48 complete all as specified and directed.

Supply only V belt of size A49 complete all as specified and directed.

Disconnecting, dismantling and strip opening of the existing air handling unit of any description and in any position and of capacity of 12000 CFM to 20400 CFM for overhauling and servicing, including cleaning of cooling coils with chemical including taking out existing shaft, blower drum, pulley and de-humidifier pump etc of air handling unit, checking thoroughly serviceability of the parts, fixing the serviceable parts in position, replacement of the defective/non functional/unserviceable parts/spares, reassembling, commissioning, fixing in position and testing of the air handling unit on full load for its smooth and trouble free operation complete all as specified and directed. Note : Spare parts i.e V- belt, filters for AHU, Bearing & pulley shall be measured and paid separately under respective items.

Supplying, laying, testing and commissioning in replacement of following nominal sizes of chilled water piping plumbing 150 mm dia MS pipes (75 mm insulation) inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated PUF moulded pipe section of density 20 kg/cum after a thick coat of cold setting adhesive (CPRX compound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium sheet cladding complete with type 3 , grade 1 roofing felt strip (as per IS:1322 as amended up to date ) at joints repairing of damage to building etc. as per specifications and as required complete all as specified and directed.

All as per item Ser No 23.00 above but 125 mm dia MS pipes (50 mm insulation).

All as per item Ser No 23.00 above but 100 mm dia MS pipes (50 mm insulation)

All as per item Ser No 23.00 above but 80 mm dia MS pipes (50 mm insulation)

All as per item Ser No 23.00 above but 65 mm dia MS pipes (50 mm insulation)

All as per item Ser No 23.00 above but 50 mm dia MS pipes (50 mm insulation)

Supply, installation, testing and commissioning in replacement of "B" class GI drain piping 80 mm dia complete with fitting etc & 25 mm thick PUF insulation with sealing tapes & 28 G Aluminium cladding complete as per drawings and specifications complete all as specified and directed.

M&L in replacement of Insulation of MS Pipe bore of pipe 40 mm dia with PUF slab 30 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete all as specified and directed.

All as per item Ser No 30.00 above but bore of pipe 50 mm dia.

All as per item Ser No 30.00 above but bore of pipe 65 mm dia.

M&L in replacement of insulation of MS Pipe with PUF slab 40 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete of sizes 80 mm dia Pipe complete all as specified and directed.

All as per item Ser No 33.00 above but bore of pipe 100 mm dia.

All as per item Ser No 33.00 above but bore of pipe 125 mm dia.

All as per item Ser No 33.00 above but bore of pipe 150 mm dia.

Supplying, fixing, testing and commissioning of BUTTERFLY VALVE 150 mm dia (MANUAL) with C I body, SS Disc, Nitrile Rubber Seal & O- Ring, PN 16 pressure rating for chilled water/ hot water circulation as specified valves, strainers, gauges in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications complete all as specified and directed.

All as per item Ser No 37.00 above but bore of butterfly valve 100 mm dia.

All as per item Ser No 37.00 above but bore of butterfly valve 80 mm dia.

All as per item Ser No 37.00 above but bore of butter valve 65 mm dia.

S&F in replacement of BALANCING VALVE 125 mm dia 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 complete all as specified and directed.

All as per item Ser No 41.00 above but bore of balancing valve100 mm dia.

All as per item Ser No 41.00 above but bore of balancing valve 80 mm dia.

All as per item Ser No 41.00 above but bore of balancing valve 65 mm dia.

All as per item Ser No 41.00 above but bore of balancing valve 50 mm dia.

S&F in replacement of 'Y' strainer 125mm dia with built in measuring facility with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled/hot water circulation complete all as specified and directed.

All as per item Ser No 46.00 above but strainer 100 mm dia.

All as per item Ser No 46.00 above but strainer 80 mm dia.

All as per item Ser No 46.00 above but strainer 65 mm dia.

All as per item Ser No 46.00 above but strainer 50 mm dia.

All as per item Ser No 51.00 above but Suction Guide 50 mm dia.

S&F in replacement of Bellows type rubber expansion joints 125 mm dia for Chilled water piping located at Pump inlet & exit, AHU inlet & exit and at chiller inlet & exit. Complete with double bellows, tie rods, MS flanges, necessary hardware and gaskets etc. with insulation complete all as specified and directed.

All as per item Ser No 53.00 above but bellows type rubber expansion joints 100 mm dia.

All as per item Ser No 53.00 above but bellows type rubber expansion joints 80 mm dia.

All as per item Ser No 53.00 above but bellows type rubber expansion joints 65 mm dia.

All as per item Ser No 53.00 above but bellows type rubber expansion joints 50 mm dia.

S&F in replacement industrial type pressure gauges with SS-304 valves in position, siphon, ball cock & socket complete all as specified and directed.

S&F in replacement mercury in glass industrial type thermometers in position complete all as specified and directed.

Supply, installation, testing and commissioning in replacement of proportional type cooling and heating thermostats for the various Air Handling Units complete with required control wiring/installation kit etc complete all as specified and directed.

Supply, fabricating and installing in replacement of perforated M.S. cable trays of size 50x450x50x2 mm thick including horizontal and vertical bends, reducers, tees, cross members and other accessories as required, and duly suspended from the ceiling with M.S. suspenders, including painting etc complete all as specified and directed.

All as per item Ser No 61.00 above but 50 x 200 x 50 x 2 mm thick.

All as per item Ser No 61.00 above but 50 x 150 x 50 x 2 mm thick.

M&L and laying in trenches/wall insulated, armoured heavy duty XLPE electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 240 sqmm 3.5 core as main power cable to chiller control panel including taking down old unserviceable cable complete all as specified and directed.

M&L and laying in trenches/wall insulated, armoured heavy duty XLPE electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 120 sqmm 3.5 core as main power cable to hot water generator including taking down old unserviceable cable complete all as specified and directed.

M&L for overhauling of pump and rewinding of electric motor with super enamelled copper winding wire of existing gauge of capacity 20 HP by opening up and cleaning of all parts such as impeller , rotor, stator, fan cover, greasing including replacing all unserviceable/damaged part like impeller, bearing, bush,seal,shaft,coupling,machine work etc and reconnecting back and testing complete all as specified and directed.

M&L for overhauling of electric motor and blower of AHU including rewinding with super enamelled copper winding wire of existing gauge of capacity 5 to 10 HP by opening up and cleaning of all parts such as impeller , rotor, stator, fan cover, greasing including replacing all unserviceable/damaged part like impeller, bearing, bush, seal, shaft, coupling, machine work etc and reconnecting back and testing complete all as specified and directed.

Supply, assembling and erection of PGI sheet 22 gauge with TDF flange rectangular/square duct made out of 'L'shaped hollow profile ,duly factory boxed including all accessories such as Corner ,Cleat,Carriage bolt,Gasket and appropriate sealant on longitudinal joints etc including taking down old rusted duct complete all as specified and directed.

M&L for duct insulation with resin bonded fibre glass wool roll of density 24 Kg /Cum and 50mm thickness with factory laminated aluminium vapour barrier , thickness of insulation complete all as specified and directed including the following:- (a) Cleaning the duct surface( to be insulated ) by scrapping carefully with wire brush etc. to make the surface completely free of mill scale ,durt,dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage complete as desired/required. (b) Applying rubber based adhesive CPRX compound. (c) Sealing of all longitudinal joints and circular overlaps with and including aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) Securing the insulation with and including mechanically fastened nylon / steel straps of size 12mm / 50mm at maximum intervals of 1.2 mtr.

M&L for painting of all metal surfaces of Cetral AC plant 3x210 TR comprising 03 Nos chiller Units, compressor, condensers, Chiller Pump Motors, Condensing pump motors, Condensing pipes, Hot water Generator Unit, LT Panel for AC Plant and AHUs with spray gun with two coats of synthetic enamel heat resistant paint matching to existing colour ones a coat of red oxide primer including preparation of old painted surfaces/removing old faded/rust/ cemented material of surface of complete all as specified and directed directed.

S&F in replacement MCCB 630 Amps 4 Pole breaking capacity 50 KA microprocessor based (ICS=100% of ICU) with rotary handle including taking down old u/s MCCB complete all as specified and directed..

S&F in replacement of dual contactor, 110 Volt, 4 Pole, (A-9-30-10), 50 Hz complete all as specified and directed.

S&F in replacement of dual contactor, 110 Volt, 4 Pole, (A-26-30-10), 50 Hz complete all as specified and directed.

S&F in replacement of HRC fuse link DIN type 400 Amps, 100 KA , 415 volt complete all as specified and directed.

S&F in replacement of HRC fuse link DIN type 125 Amps, 100 KA , 415 volt complete all as specified and directed.

S&F in replacement of HRC fuse link DIN type 80 Amps 100 KA , 415 volt complete all as specified and directed.

Material and Labour for earthing complete with GI earth plate electrode 600mmx600mmx6mm thick burried in ground vertically to a depth not less than 2.25meters below ground level with top edge of the earth plate at a depth not lesss than 1.5 meter below the ground level, earth plate surrounded 15cm thick layers of common salt and charcoal dust starting from ground below 15 cm of earth plate and up to 15 cm above the same. GI plate connected with GI strip 32x6 mm by means of nuts, bolts and washers. GI strip shall be laid in 40mm dia light grade GI pipe as protection from top of the plate up to test point (cost of protection pipe up to 7.5 meters from earth electrode will be included in the rates quoted by the contractor) as shown in electrical plat No. 03 of SSR Part-I with following:- (a) GI strip 32x6mm (b) Watering pipe GI light grade 25mm dia from top of the earth electrode up to MS funnel with wire mesh embeded in floor of PCC earth pit. (GI Funnel should properly tightned on GI watering pipe and embeded in PCC floor of earth pit with open top suitable for watering of earth pits) (c) PCC earth pit 30x30x30cm constructed in PCC 1:2:4 type B1 exposed surfaces smoothly finished with 15mm thick cement mortar 1:6 plaster including RCC pit cover 25mm thick re-inforced with 8mm dia bars 75mm centre to centre both ways with 2 Nos MS handles of 12mm dia suitable for carrying of pit cover.

M&L Earth continuity conductor or main earthing lead of size 32 x 6 mm of GI fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc including taking down old unserviceable strip complete all as specified and directed.

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