REPAIR/MAINTENANCE OF CENTRAL AC PLANT AND CONNECTED WORKS AT ION LAB AND JCB LAB AT METCALFE HOUSE AREA UNDER GE I RND DELHI

Amount

Supply, Installation, commissioning and testing condensing coil for 3 x 210 TR AC Plant including installation of New coil with Brazing, Vaccuuming including taking down old userviceable condensing coil as per existing OEM Make : YORK by Johnson Controls

M&L Epoxy protective coating on Copper piping system, headers (Discharge line, Liquid line, all open fittings of copper, suction line etc) for 3 x 210 TR AC plant Make : YORK by Johnson Controls Model No. YVAA0263 as per OEM. Note: Measure 1 circuit of chiller for 1 unit.

Supply and charging the refrigerant R-134a/410 for 3 x210 TR chiller type AC plant Make : YORK by Johnson Controls Model No. YVAA0263 including testing complete all as specified and directed

Pressure testing with Application of Nitrogen Gas and replacement of Spares/Cosumable for 01 Chiller application to find out any leakage, brazing and stopping of all leakage detected, re-application of nitorgen pressure to ensure leak proof gas circulator system flushing out the nitrogen gas complete all as specified and directed.

S&F in replacment of Coolant for topping up of compressor for 3 x 210 TR AC plant Make : YORK by Johnson Controls Model No. YVAA0263 as per OEM all as specified and directed (1 Can = 18.9 Ltrs).

S& F in Replacement of Compressor oil (YORK OIL, L5 Gal Pail) for 3 x 210 TR AC plant Make : YORK by Johnson Controls Model No. YVAA0263 complete all as specified and directed. (1 Can = 18.9 Ltrs).

M& L Servicing of complete AC plant 3x210 TR Model No. YVAA0263 including electrical panels, VSD Panels & setting of all parameters all as per OEM complete all as specified and directed.

Supply and fixing FILTER DRIER 3/8 0RFS for 3 x 210 TR AC Plant Make : YORK by Johnson Controls Model No. YVAA0263 As per existing OEM Make : YORK for each circuit all as specifed and directed.

Supply and Fixing CTG DEHY 100 PERCENT MOLECULAR for dehydrator for refrigrant circuit for 3 x 310 TR AC Plant Make : YORK by Johnson Controls Model No. YVAA0263 all as specified and directed.

Supply and fixing Oil Filter for 3x210TR AC plant Model No YVAA0263 As per existing OEM Make : YORK by Johnson Controls for each circuit

Supply and fixing O- RING size 2.62 x 81.97 mm for 3x210TR AC plant Model No YVAA0263 As per existing OEM Make : YORK by Johnson Controls for each circuit

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 specifiedand directed.

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 15500 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 positiion, 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 & directed. Note : Spare parts i.e V- belt, filters for AHU, Bearing & pulley are measured and paid separately under respective items

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S&F in replacement of Bearing and bearing hub as per existing size suitable for AHU 5500 CFM to 15500 CFM

S&F in replacement of metal pulley with hub as per existing size suitable for AHU 5500 CFM to 15500 CFM

Material and labour for in replacement of V belt of size A42 complete all as specified & directed.

Material and labour for in replacement of V belt of size A43 complete all as specified & directed.

Material and labour for in replacement of V belt of size A46 complete all as specified & directed.

Material and labour for in replacement of V belt of size A48 complete all as specified & directed.

Material and labour for in replacement of V belt of size A49 complete all as specified & directed.

M&L for in replacment of unserviceable pre filter section with 50mm thick with GI frame metal viscous/ washable synthetic type air prefilters (EU-3, 90% down to 10 micron), fine filter (EU-7, 99% down to 3 micron) as per existing size (600mm x 600 mm)

Supplying, laying/ fixing, testing and commissioning in replacment of 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/cu.m 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 type3 , grade 1 roofing feltstrip(as per IS:1322 as amended up to date ) at joints repairing of damage to building etc. Complete all as specified & directed

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

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

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

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

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

Supply,installation,testing and commissioning in replacment 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 of below sizes.

M & L for in replacment of unserviceable Insulation of M S 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 of sizes as shown

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

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

M & L for in replacment of unserviceable Insulation of M S 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.

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

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

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

Supplying, fixing, testing and commissioning in replacment of BUTTERFLY VALVE 150 mm dia (MANUAL) with CI body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled/ 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.

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

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

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

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Supply and fixing in replacment of BALANCING VALVE 125 mm 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 & directed

All as per srl item No 43.00 above but bore of valve100 mm dia.

All as per srl item No 43.00 above but bore of valve 80 mm dia.

All as per srl item No 43.00 above but bore of valve 65 mm dia.

All as per srl item No 43.00 above but bore of valve 50 mm dia.

Supply and fixing in replacment of 'Y' strainer 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 & directed

All as per srl Item No 48.00 above but 100 mm dia.

All as per srl Item No 48.00 above but 80 mm dia.

All as per srl Item No 48.00 above but 65 mm dia.

All as per srl Item No 48.00 above but 50 mm dia.

All as per srl Item No 53.00 above but 50 mm dia.

S&F in replacment 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 of following sizes:

All as per srl Item No 55.00 above but 100 mm dia.

All as per srl Item No 55.00 above but 80 mm dia.

All as per srl Item No 55.00 above but 65 mm dia.

All as per srl Item No 55.00 above but 50 mm dia.

S&F in replacment in position the industrial type pressure gauges with SS-304 valves complete as required

Supply & fixing in replacment in position the mercury in glass industrial type thermometers.

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

Supply, fabricating and installing in replacment of perforated M.S. cable trays of size 50 x 450 x 50 x 2 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 & directed

All as per srl Item No 63.00 above but 50 x 200 x 50 x 2 mm thick complete all as specified & directed.

All as per srl item No 63.00 above but 50 x 150 x 50 x 2 mm thick complete all as specified & directed.

S&F in replacment desert cooler fan motor, copper wound suitable for upto 450mm sweep including metal fan blades SP 230 volts 50Hz including legs, rubber bush nuts/bolts for fixing of fan motor complete with connection & testing complete all as specified & directed.

M&L and laying in trenches PVC 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 & directed

M&L and laying in trenches PVC 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 & 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 7.5 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, aessembly and erection of PGI sheet 22 gauge with TDF flange rectangular/square duct made out of 'L' shape hollow profile, duly factory boxed incl 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 as specified and including the following:- (a) M & L for cleaning the duct surface( to be insulated ) by scrapping carefully with wire brush etc. to make the surface completely free of mill scale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage. (b) M & L for applying rubber based adhesive CPRX compound. (c) M & L for sealing of all longitudinal joints and circular overlaps with and including aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) M & L for 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 plant, Chiller Pump Motors, Hot water Generator Unit, LT Panel for AC Plant and AHUs by using spray gun & applying two coats of synthetic enamel heat resistant paint matching to existing colour over a coat of red oxide primer including preparation of old painted surfaces/removing old faded/rust/ cemented material of surface complete all as specified and directed.

M&L for painting of Cetral AC plant 3x10 TR complete ( i.e 03 Nos chillers unit, compressor, condensers, Condensing pipes, Chillers pump motors, Condensing pump motors, LT Panel for complete AC Plant etc) by using spray gun & applying two coats of synthetic enamel heat resistant paint matching to existing colour over a coat of red oxide primer including preparation of old painted surfaces/removing old faded/rust/ cemented material of surface complete all as specified and directed.

M&L in replacement of mild steel work (Equal angle iron, flat iron & bracing) for supporting chilled water pipe, condesing pipe, base channel for pump motor or any other rquirement at site including necessary fabrication, welding nuts & bolts including painting with two coats of synthetic enamelled paint over a coat of red oxide primer including prepration of new steel surfaces complete all as specified and directed

S&F in replacement of MCCB 800 Amps 4 Pole breaking capacity 50KA including taking down old burnt MCCB complete all as specified and directed.

S&F in replacement of power contactor as per existing capacity & size for control panels of AHU & hot water Generator of 3x210 TR central AC plant three pole 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 80 Amps 100 KA , 415 volt complete all as specified and directed.

Supply only digital Psychrometer with psycrometric chart - 01 No and Digital Anemometer - 01 No

M&L for repair of hot water generator of capacity 20 KW in five banks complete with one slave bank controlled by semi conductor rectifier & other necessary controls, electrical panels including control wiring with 2.5 sqmm multistranded copper FRLSH cable 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 less 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 galvanised iron strip of 32x6 mm by means of Copper nuts, bolts and washers. Strip 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) with following complete all as specified and shown in electrical plate No 3 of SSR Part-I & testing on completion :- (a) GI strip of size 32mm x 6mm. (b) Watering pipe GI light grade 20mm 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) Excavation & earthwork in any type of soil 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 50mm thick 1:2:4 type B1 reinforced with 8mm dia mild steel bar 75mm centre to centre with 2 Nos MS handles of 12mm dia suitable for carrying of pit cover.

M&L for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc as required 32x6 mm galvanised iron strip complete all as specified and directed.

M & L for Servicing of the window type AC 1.5/2 ton capacity of any make, including oiling/greasing the blower motor, cleaning the evaporator condenser coils externally to remove the dust, replacement of defective thimbles etc and re-fixing the air conditioner at its original position by the experienced refrigeration mechanic & testing complete all as specified and directed Note:- (i) Any unserviceable items required to be replaced/gas charging etc shall be replaced & paid seperately under respective items. (ii) The cost of dismantling, taking out window AC 1.5/2.0 ton from window and shifting to location where directed for proper washing and servicing and refixing the same shall be deemed to be included in item rate quoted.

All as per ser item No. 84.00 above but for split type AC/Inverter type AC 1.5/2.0/3.0Ton

Suuply & Fixing in replacement of old unserviceable Hermitacally sealed compressor electric driven three phase run for split/ window type AC capacity 3.0 TR complete all as specified and directed.

M&L in replacement Condensing Fan Motor and fan blade of AC (Window/ Split Type) 1.5 TR to 2.0 TR Capacity of approved Make and required Size to suit existing AC including taking out the unservice-able Fan Motor from the AC, complete all as specified and directed.

Taking out split type AC complete indoor and outdoor unit from any height/ any floor up to four storey building by including pumping down the gas into the compressor by controlling the suction and discharge valves , disconnecting the suction and discharge copper piping and shifting to another locatiion in the same or other building in the complex including refixing of the unit complete including necessary gas charging all as specified and directed.

Supply and charging the gas refrigerant R22/R32 (including refrigerant) of window type AC upto 2 ton capacity including testing after application of nitrogen gas pressure to find out any leakage, brazing and stopping of all leakage detected, re-application of nitorgen pressure to ensure leak proof gas circulator system flushing out the nitrogen gas complete all as specified and directed.

M&L in replacement PCB with remote & sensor for Split type AC Capacity 1.5 TR to 3.0 TR capacity including taking out old unserviceable PCB complete all as specified and directed .

S&F in replacement compressor shut off/flair wheel valve 5/8" for split type AC up to 2.00 ton capacity complete all as specified and directed.

S & F in replacement of electrolyte grade copper tubing of size 1/4" suitable for any type of split type AC including synthetic rubber foam complete all as specified and directed. Note : - The quoted rate is inclusive of necessary T&P, Rope, Ladder etc with safety equipment for execution the work upto six stories building.

All as per ser item No. 92.00 above but size 5/8".

S&F in replacement of old unserviceable PVC HDPE pipe 25 mm dia including all clamps & accessories and connecting the condensate pipe of ACs to this conduit for proper drainout of condensate water from ACs of Bldgs upto 5 (five) storey complete all as specified and directed.

S&F in replacement of old unserviceable synthetic rubber foam for insulation of refrigerant copper piping of existing size 1/4" to 5/8" internal dia split type AC complete all as specified and directed.

S&F in replacement of old unserviceable cooling coil suitable for window type AC 1.5/2 ton including taking out unserviceable cooling coil of capacity 1.5/2 ton complete all as specified and directed.

S&F in replacement old unserviceable Condensing coil suitable for window type AC 1.5/2 ton including taking out unserviceable Condensing coil of capacity 1.5/2 ton complete all as specified and directed.

S&F in replacement old unserviceable Condensing coil suitable for split type AC including taking out unserviceable Condensing coil of capacity 2 ton complete all as specified and directed.

S&F in replacement old unserviceable Condensing coil suitable for split type AC including taking out unserviceable Condensing coil of capacity 3 ton complete all as specified and directed.

S & F in replacement old unserviceable cooling coil suitable for split type AC including taking out unserviceable cooling coil up to capacity 2 ton complete all as specified and directed.

Suuply & Fix in replacement old unserviceable of Hermitacally sealed compressor for split/ window type AC capacity 1.5 Ton complete all as specified and directed.

All as per ser item No. 101.00 above but for split/ window type AC capacity 2.0 Ton complete all as specified and directed.

S&F in replacement old unserviceable defective push cock 15 mm bore chromium plated heavy duty suitable for water cooler of any make and capacity complete all as specified and directed.

S&F new wood wool pad,(Khas Khas) set of three covered by GI wire mesh suitable for desert cooler including taking out the old unserviceable existing pad complete all as specifed & directed

M&L for Rewinding Fan Motor of AC 1.5/2.00 TR Capacity, (Window/Split Type) of any Make with Super Enameled Copper Wire of appropriate Gauge and Quantity with insulation materials including taking out burnt Winding, complete all as specified and directed.

M&L in replacement Capacitor Running 36 mfd – 45 mfd suitable for new/star rated for AC (Window/Split Type) 1.5 TR/2.0 TR Capacity and of any make including taking out unserviceable Capacitor from AC complete all as specified and as directed.

M&L in replacement Capacitor Starting 80 mfd – 120 mfd suitable for old AC (Window/Split Type) 1.5 TR/2.0 TR Capacity and of any make including taking out unserviceable Capacitor from AC complete all as specified and as directed.

ALPHA ENGINEERS AND BUILDERS