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| 1 | Repair / maintenance of 8 Central AC plant of following capacity :-(a) Central AC Plant of 2 x 65 TR water cooled chiller type.Location-TL Gp 509 ABW.Make-Voltas(b) Central AC Plant of 2 x 75 TR water cooled chiller type.Location-Old Clean Room 509 ABW.Make-Bluestar(c) Central AC Plant of 3 x 39 TR water cooled chiller type.Location-Old Fly Catcher 509 ABW.Make-Voltas(d) Central AC Plant of 3 x 65 TR water cooled chiller type.Location-New Clean Room 509 ABW.Make-Bluestar(e)Central AC Plant of 3 x 25 TR water cooled chiller type.Location-AATS.Make-Bluestar(f)Central AC Plant of 3 x 13 TR water cooled chiller type.Location-Missile Shed .Make-Voltas(g) Central AC Plant of 2 x 52 TR water cooled chiller type.Location-23 Para Hanger.Make-Bluestar(h) Central AC Plant of 1 x 60 TR water cooled chiller type.Location-Bgd Mess.Make-Voltas |
| 2 | Repair / maintenance of Central AC plant including carrying out daily check andPeriodical servicing by rep of OEM of the AC Plants at various locations tomaintain in a reliable, safe and efficient manner using latest techniques & experts by carrying out planned maintenance in a systematic and controlled manner by regularly examing, testing, lubricating and adjusting of all the items of AC Plants with inculding repair/ replacement of all defective parts i.e all type of mechanical and electrical items.(i) Descaling of condenser after opening of both end cover, circulation of descaling solution using pump for circulating descaling solution and manually using nylon brush of size 1/4, 3/8, 1/2, 5/8 inch descaling rod etc without damaging copper tubing and refixing of side cover sheet of 3 mm thick and replacement of rusted nuts bolts etc. (ii) Descaling and flushing of cooling coil complete with chemical brushing to fins, bends and cleaning complete.(iii) Material and Labourfor Servicing/Cleaning of FRP cooling towers of following capacity by dismantling top cover, fan with fan motor and removing the honey comb frills. Cleaning of base tray & frills, pot strainer etc. servicing of fan motor with changing of bearings and greesing refixing the fan, frill & top cover testing commissioning complete all as directed by Engr-in-charge.(iv) Servicing of compressor unit by draining out the used compressed oil, opening both side covers, head covers and taking out the defective oil filter, cleaning the sump by using suitable cleaning solution, replacing the defective oil filter element, checking of solution and discharge valve, adjust them and refixing the side covers head covers including replacing the suitable gasket complete and refilling of new compressor oil to the required level, removing the pull, checking the serviceability of shaft seal assembly, replacement of shaft seal assembly, and refixing the pull including replacing the defective gas filter and tesing complete(v)Cleaning of cooling coil and air filters of Air handling units,rewiring of all strip heaters installed at Air conditioning plant by removing air filters and fixing back after cleaning with air blower, water and cleaning agent.Cleaning of cooling coil with wire brushes and air blower and water spray pump after spraying cleaning agent of makeScal Gun AL or equivalent chemical suitablefor aluminium fins and all as specified and directed and Straightening the fins of cooling coil using suitable brushes as specified and directed for following capacity of Air Handling Units. (vi) Any type of defects such as sensor fault,repair of microprocessor card,electrical fault in the chiller shall be replaced by the contractor and the cost of the same shall be deemed to be included in the above item rate. (vii) All electrical faults in the chiller plant panel such as contactors,single phase preventor,overload relay shall be rectified or replaced by the contractor except MCCB replacement. Note-A job will be considered as a period of one month from the date of commencement of contract till the date of completion of contract. |
| 3 | (a) 13 TRto 75 TR (Total - 19 Water Cooled Chiller ) |
| 4 | SCOPE OF WORK:-(a)The detailed AC mechanics of the firm shall report to the JE Concerned for receiving the complaints at round the clock daily including sunday and holiday. (b)AC mechanic deployed at work shall be experienced in AC plant repairs and maintenance and fully equipped with required T&P. (c) The contractor shall stick/ paste safety instructions at inside cabins of all AC plants with the contact number of operator/ mechanic as directed at no extra cost to the department.(d)The contractor shall submit the Maintenance Contract (AMC) alongwith tax invoice to the GE for approval under 10 (Ten) days of Acceptance ofcontract. The AMC will be prior approved and no payment will be made to the contractor without submission of valid AMC . (e) Rectification of any breakdown of any AC plant whenever required round the clock, the contractor will rectify the fault and restart the plant within three hours after/receipt of complaint of any nature i.e Compressor, Condenser, Cooling tower, AHU, Control panel etc. In event to the complaint not attended timely as stipulated above; a penalty of Rs 500/hr will be levied and the due amount will be deducted from the RAR.(f) Complaint register and call log record will be maintained by the Engr-in-Charge . Any Complaints requiring major parts/repair shall be rectified within 24 hrs. In case delay in rectification of major parts for more than 24 hrs and upto 10 (Ten) days, penalty on the contractor for a sum of Rs 2000.00 per AC plant per day or part thereof and Rs 4000.00 per AC per day or part thereof after 10 (Ten) days shall be imposed.(n)Air filters will inspected and cleaned, as perdirected by Eng-in-Charge. Cooling coil will be inspected and cleaned, all as specified and directed.(o) The blower motor will be checked and any defects noticed will be attended and rectified the complete without any extra cost.(p) the driver set of the blower section will be inspected, belt tension adjusted and belts changed, all as specified and directed.(q)Any defect in the electrical items and controls wiring, will be attended and rectified complete all as specified and directed by Engr-in-Carge.(r) Refrigerant gas will be topped up in the system as and when necessary and directed by Eng-in-Charge.(s) Condenser water pumps with motor will be checked for satisfactory functioning and anyrepair to them, will be carried out by contractor without any extra cost.(t)Cooling tower nozzles will be inspected, checked and attended to for proper spray and replaced, damaged nozzles all as speicified and directed.(u) Cooling tower sump will be cleaned regulary complete all as specified and directed by Engr-in-Carge .(v) The condenser coil will be inspected and cleaned complete all as specified and diriected by Engr-in-Charge.(w) Any repairs in the condenser coil will be carried out by contractor without any extra cost.(x) Repairs to refrigerant pipiing will be carried out by contracator without any extra cost. |
| 5 | M&L for Gas (Refrigerent) R 32/22/407C/410/134 charging including checking of leakage by applying of Nitrogen gas,rectifying the leakage by soldering and brazing and testing on full load complete all as specified and directed. |
| 6 | S&F in replacement of corrodedunserviceableMSpipes heavy duty class complete with andincluding all fittings and provide with new MS pipe line heavy duty grade ISI mark with regarding allfittingat the time of fixingsuch asTees, bend short pieces, long screw, union, flanges, sockets , nut, bolt & washer etc includingfittingwith the help ofnuts, bolts, washers, welding, bending of cold or hot, drilling including making holes of for bolts in any shapefor following bores pipes incl painting of pipes completeall as specified & directed. Make - Tata/Jindal/Prakash surya |
| 7 | 100 mm bore |
| 8 | 80/75 mm bore |
| 9 | 50 mm bore |
| 10 | S&F in replacement of butter fly valve ISI marked as per existing type /sample made of cast iron body with chromium plated stainless steel shaft & disc of ductile iron epoxy coated including duly fixed with existing pipe line sysem with the help of jointing cutting, welding , nuts bolt & washer ,with flanges, etc completeof different sizes complete all as specified & directed. |
| 11 | 100 mm bore |
| 12 | 80 mm bore |
| 13 | 50 mm bore |
| 14 | S&F in replacement of corrodedunserviceableGIpipes heavy duty class complete with andincluding all fittings and provide with new GI pipe line heavy duty grade ISI mark with regarding allfittingat the time of fixingsuch as Tees, bend short pieces, long screw, union, flanges, sockets , nut, bolt & washer etc includingfittingwith the help ofnuts, bolts, washers, welding, bending of cold or hot, drilling including making holes of for bolts in any shapefor following bores pipes incl painting of pipes completeall as specified & directed. Make - Tata/Jindal/Prakash surya |
| 15 | 25 mm bore |
| 16 | 20 mmbore |
| 17 | Supply and fixing in replacement of gun metal gate valve ISI marked as per existing type/model and duly fixed with the help ofnuts, bolts, washers, welding, bendingcold or hot, drillingany shape or size and matching/fitting with existing pipe line system for the following sizes complete all as specified & directed. |
| 18 | 20 mmbore |
| 19 | 25 mm bore |
| 20 | 40 mm bore |
| 21 | 50 mm bore |
| 22 | S&F in replacement ofMicro proccessor card suitable for 15/25/40 TR Chiller Unitscomplete all as specified and directed. |
| 23 | S&F in replacement ofMicro proccessor card suitable for 60/65/75 TR Chiller Unitscomplete all as specified and directed. |
| 24 | M & L for dismantling of electric motors pump set any type any size from the existing foundation/location and carry out to authorised work shopfor the purpose of rewinding of as 3 phase 415 volt type system for induction motors pump sets suitable of Chiller/ condensor / AHU blower motor / pump motor/CT fan and using of hight quality of H class supper enamelled copper wire of existing reqired gauge/size complete in all respect such as using new insulation, varnishing, drying, heating etc and other material etc and reassembling / refixing on position and including replacement of ball bearing / bushes as per existing type sample/ type complete including testing on loadcomplete all as specified and directed. |
| 25 | 20 HP Capacity |
| 26 | 12.5 HP to 15 HP Capacity |
| 27 | 7.5 HP to 10 HP capacity |
| 28 | 3 HP to 5 HP |
| 29 | Labour for dismantling, disconnecting the monoblock pump set of capacity 3 to 12.5 HP from foundation and fixing after repairing rewinding and assembling the pump set including insulating material of any size ,testing complete all as specified and directed including transportation to workshop and back after repair.Note:- Worn out spares shall be measured and paid as under:- |
| 30 | Impeller CI |
| 31 | Gland bush (Gun Metal) |
| 32 | Mechanical Seal |
| 33 | Bearing set Make - SKF/TATA/NBC |
| 34 | Lathe work & servicing charges |
| 35 | S&F inreplacement of PVC fills of size 600x300x150 mmsuitable for Cooling towers AC plants 10/60/75 TRcomplete all as specified and directed. |
| 36 | S&F in replacement ofCooling towers louvers suitable size as per existing and suitable for 10/60/75 TR AC plantscomplete all as specified and directed. |
| 37 | Repairs/maint and adjustment of AC duct/dampers for equal air flow pressure in the duct duly opening of duct for necessary required work pressure in condition room including velocity pressure test at in and out flow of air cleaning of air filters as specified and directed. |
| 38 | Supply Installation of HDPE double layered, closed lid cylindrical shapes ISI marked water tank of 1000 Ltrs capacitycomplete as specified and directed. |
| 39 | Supply Installation of HDPE double layered, closed lid cylindrical shapes ISI marked water tank of 2000 Ltrs capacitycomplete as specified and directed. |
| 40 | Supply Installation of HDPE double layered, closed lid cylindrical shapes ISI marked water tank of 3000 Ltrs capacitycomplete as specified and directed. |
| 41 | Supply & install PVC Chilled water expansion tank 1000 Ltrs and thermally insulated with 50 mm thick EPSquality sheet of suitable size having density not less than 65 Kg/Cum with protecting cover of 25 gauge aluminum sheet cladding and supporting pipe connections as specified & directed. |
| 42 | Supply , fixed and in replacement , testingout unserviceable/ defected expansion valve assemblyas per existing type / sample suitable using for AC plant of capacity 75 TR/65/60/52/25/13TRand duly fixed with existing refrigent system and filter drierwith the help of any method including checking and testing on full load complete including taking down of existing valve all as specified& directed. |
| 43 | S&F in replacement of temperature gauge /meter (Thermometer) of any description and in any position complete all as specified & directed. Make :Japsineor equivalant make |
| 44 | S&F in replacement of water pressure gauge of range 0-100 PSI, to150- 300 PSI with100mm dia, duly fixed with suitable size of stainless steel pipe and control valve and fixed on existing position ofplant complete all as specified & directed. |
| 45 | S&F in replacement of pressure release valve / safety release valve as per existing sample size suitable for central type AC plant completeall as specified ,directed |
| 46 | Supply,installation,testing and commissioning of 3 HP 3 phase monoblock pump having suction size of 65 mm and delivery size of 50 mm with head range of 10-26 m and discharge range of 5-9 lps with mechanical sealincluding all necessary connections required for its installation.Make-Kirloskar KDI 325 ++/KSB/Crompton |
| 47 | S&F in replacement pot \"Y\" type strainer assembly along with filter mash of size100/125/80mm dia including MS flange on both end, nut bolt washer rubber gasket etcand duly fixed with existing system complete and taking down old existing U/S, all as specified and directed. |
| 48 | M & L for laying, jointing, connecting and testing in replacementof XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area in trenches / cable tray of 3 core 6 sqmm |
| 49 | All as per item No.24 above but 3 core 10 sqmm |
| 50 | All as per item No.24 above but 3 core 16 sqmm |
| 51 | All as per item No.24 above but 3 core 25 sqmm |
| 52 | S&F in replacementmetalic cooling tower blades assembly (Set of blade) as per existing sample and size including adjustment and fixing along with existing motor frame complete for centraltype AC plant of follwing capacites including taking down of existing blade andall as specified and directed. |
| 53 | 40 TR |
| 54 | 75 TR |
| 55 | 120/130/150 TR |
| 56 | S&F in replacement of \"V\" belt any type any lengtht as per existing sample /size suitable uses for different type of central type AC plant parts like compressor motor and air blower motors, AHU system etc includingmeshingwith theexisting motor with plant pully system complete including taking down oldbeltcomplete all as specified and directed. |
| 57 | S&F in replacement of cooling tower fan motor of capacity 5 HP 3 phase 415 Voltalongwith long shaft and locking accessories as per existing model / sample suitable for cooling tower of Central AC plant and duly fixed on existing systemand making electrical connectioncomplete all as specified and directed. |
| 58 | S&F in replacement of cooling tower fan motor of capacity 3 HP 3 phase 415 Volt alongwith long shaft and locking accessories as per existing model / sample suitable for cooling tower of Central AC plant and duly fixed on existing systemand making electrical connectioncomplete all as specified and directed. |
| 59 | Supply and Fixing in replacement ofheader with all connected accessories like tee, bend, reducers etc suitable for cooling tower of 39 TR AC Plant fitted at top side of cooling tower with SS nut bolts, washers with gasket and all as specified and directed |
