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| 1 | M&L for carry out the descaling of shells and tubes water cooled type condenser in each quarter by disconnecting the inlet and out water connections and providing of dummy to the inlet and outlet and descaling the condenser by circulating the circulated descaling agent R-111 or equivalent chemical or organic compound at the proper ratio circulated chemical till remove complete scale deposite inside the copper tubes, and opening the both end cover by the condenser brushing the copper tubes with appropriate size nylon brush remove complete scale and flushing and boxing up the both end covers connecting up the water inlet & outlet connections including renewal by damaged rubber gas kets and leak testing the joints for water leakage for the following capacity shell and tube condensers all as directed by Engineer-in-charge. Make : Voltas/Bluestar or equivalent approved make. |
| 2 | 25 TR |
| 3 | 70/80 TR |
| 4 | 150 TR |
| 5 | M & L for carry out leak test for the chiller type system in half yearly by extracting the existing available gas from the system to separate cylinder storing and pressure testing the complete system with dry nitrogen and check the leaks , identifying the leaks, rectification of leaks by brazzing/ weilding at the leak points/replacing by damaged valve gland package/ gas ket etc, and after rectification of all the leaks pressure testing the complete system up to 300 PSIG at high side , 200 PSIG at low side of the system, holding the pressure for 24 hrs and vaccumising the complete system after releasing the dry nitrogen and charging the refrigerent gas to system and testing & comissioning the plant checking all controls for the following capacity ,shell and condensers all as directed by Engineer-in-charge.Make : Voltas/Bluestar or equivalent approved make. |
| 6 | 25 TR |
| 7 | 70/80 TR |
| 8 | 150 TR |
| 9 | Supply only refrigerant gas 134 A for charging all as directed Make : Mafron/ Freon/ Floron |
| 10 | Taking down the worn out V belts of the AHU drive sets by opening of the drive motor foudation bolts , and S & F of new V belts of the folowing sIze and type and matching the proper alingment and testing .complete all as specified and directed |
| 11 | V belt section A- 28 |
| 12 | V belt Section A- 31 |
| 13 | V belt section A-35. |
| 14 | V belts section B- 54 |
| 15 | M&L for servicing / cheking/inspection AHU in half yearly basis of following capacity of AC plant, with and including dismantling units sheet metal parts, blowing out dust, chemical cleaning by spraying the organic based scale removing agent vaniklin at the appropriate ratio till removal complete dust & scale deposite in the fins area across the evaporator coil, flushing through for proper air follow across the coil, cleaning the motor& greasing of blower motor, cleaning the condensete tray& drain pipe, renewal of rusted bolt,nuts and applying synthetic emamel paint over a coat of primer were ever the rusted portion, removal the pre filters,including checking the aligent of the drive set and testing commisioning the AHU's of the following capacity complete all as specified and directed |
| 16 | Up to 5000 CFM. |
| 17 | 5000 to 20000 CFM. |
| 18 | 21000 to 40000 CFM |
| 19 | M&L for dismantling the defective induction motor of following capapcity of any make 415 V, 4 pole up to 1200-1500 RPM, 50Hz of any duty or any class of insulation from the bed duly coupled with pump / compressor /in AHU, transporting to work shop, removing burnt out winding from stator / motor, rewinding with suitable guage of super enamelled copper wire of approved make and replacing drive end and non drive end bearings , insulation materials, varnishing, heating reassembling, tetsing and commissioning for the following capacities complete all as specified and directed |
| 20 | 5 to 7.5 HP |
| 21 | above 7.5 and up to 12.5 HP |
| 22 | M&L for servicing of the defective VFD of following capapcity AC Plants including replacement of mionr parts complete all as specified and directed. |
| 23 | 150 TR |
| 24 | 70/80 TR |
| 25 | 25 TR |
| 26 | Supply and fixing the following spares for carrying out repairs to VFD of capacity 150 TR/ 80 TR complete all as specified and directed.Make:- Voltas/ blue star/ Carrier/Denfoss or equivailent approved make. |
| 27 | Top Fan |
| 28 | Mixing Fan |
| 29 | Heat Sink Fan |
| 30 | Graphical LCP |
| 31 | HF Card |
| 32 | Gate drive card |
| 33 | Inrush Card |
| 34 | Rectifier |
| 35 | Carrying out repairs and Maintenance , attending to breakdown of 80 to 150 TR variable speed screw type liquid chiller central AC plant of Make : voltas as per the following scope of the work given below including carrying out general repairs/ servicing to ensure smooth and trouble free operation of plants to the entire satisfaction of users/department complete all as specified and directed. |
| 36 | Scope of Work : (a) Periodical monitoring / Inspecting the complete ac plant and carrying out preventive/ periodical maintenance to ensure smooth functioning of AC plant.The periodical inspection for preventive maintenance shall be carried out by technician/service engineer of OEM once in a quarter other than breakdown calls for monitoring the operational condition of AC plant including for preventive maintenance/breakdown calls whenever required. Each preventive maintenance & breakdown call if any will be measured Job(b) Visual inspection for oil traces, Air heat exchanger (condenser) cleaning, check for removed protection devices, and improperly closed doors/ covers, check that the temperature difference between the heat exchange inlet and outlet is correct, check the refrigeration system, motors and starters for performance and healthy condition of plant. |
| 37 | (c) Checking the system for leaks and rectification of leaks if any.(d) Taking a set of readings and evaluating the same to ensure the satisfactory performance of the plant.(e) Checking the refrigeration control system for operation and adjusting the settings as and when required. (f) General Cleaning the evaporator and condensing coils(g) General Lubrication of the bearings of motors, pumps and fans as and when required.(h) Inspection of belts, which includes adjusting the tension including replacment if required.(l) Filling only the refrigerant as a result of leak arising from the system due to standard wear and tear. |
| 38 | (m) Repairing/ replacing the components of the equipment at site or at workshop as required(n) To check proper functioning of microprocessor and take control test.(o) Intimating any breakdown requiring specific major repairs/overhauling to the contractor/ department for immediate rectification of defect.(p) Attending the complaints/ breakdown whenever received by user /JE /Engineer in charge and attending the complaint for same within 24 hrs of receipt.(t) The repair/replacement of all spare parts like ICVC Boards, compressor / fan motor rewinding, electrical switch gears, contactors, PCB, refrigerant gas etc., are not in the scope. These items shall be measured and paid separately under relevant items.(u) Any minor spares/ repairs items which are required to keep the plant in operational are deemed to be included in scope. |
| 39 | Supply & Fixing in repairs and filling of the following spares of variable speed screw type liquid chillar of capacity of 70 to 150 TR under relevant schedule item.Make : voltas/ Blue star or equivalent approved make. |
| 40 | Oil cartridge filter |
| 41 | Compressor oil Make : HP Sheetal, Emkarate, Speed Air, Z Premium, Vacpac oil, MAG1,Denfos |
| 42 | Temperature sensor |
| 43 | Lp sensor |
| 44 | Chillar flow switch with connection pipe |
| 45 | Pressure guage 0-7 kg/cm2 |
| 46 | MNX 25 contactor 220 V ,50Hz, |
| 47 | MNX 40 contactor 220 V ,50Hz, |
| 48 | MNX 12 contactor 220 V, 50Hz |
| 49 | MNX relay 9-14 AMPS |
| 50 | Timer Star/ delta |
| 51 | Auxillary block |
| 52 | Ventilating fan suitable for HVAC drive panel of 132 KW /200 HP of the AC plant |
| 53 | M&L for carry out the repair to cooling tower fan motor 7.5HP/5HP flange mounted extended shaft type, including taking down from position, transporting to local work shop, replacing damaged unserviceable shaft, bearings, rusted nuts & bolts including servicing motor by motor varnishings to winding etc. assemble and installation to position and testing comissioning.complete all as spcified and directed. |
| 54 | M&L for replacing the cooling tower motor base frame, base plate, Nut & bolts with new all as per the existing size and shapeas suitable 80 to 150 TR capacity.complete all as spcified and directed. |
| 55 | Complete overhauling/servicing of FRP cooling tower, removal of complete scales, dirt etc. by using chemicals, cleaning the slump louvers, PVC fills, fan assembly, renewal of spray nozzes with connected pipe, renewal of nuts and bolts, leak arresting of the FRP tank and complete painting of the cooling tower as per the standard practice. Repairing to the leakage portion by lining with FRP material including replacement of rusted nut and bolts and replacing of bird screens at air intake portion and testing and commissioning of the cooling tower of the follwoing capacity complete all as spcified and directed |
| 56 | 150 TR |
| 57 | 70/80 TR |
| 58 | M/L for taking down the damaged direct coupling unit of split casing pumps of chilled water/condenser water and S/F drive set of suitable size with necessary boring to the motor and pump shaft size including making of shaft key way slots and matching of proper alignment to the drive set and testing and commissioning of the drive set upto 25HP complete all as spcified and directed |
| 59 | M/L for carrying out painting to central type Air conditioning plant including compressor, condensers, chillers, Refrigeration lines Condenser water line, pumps, motors foundation frmer valves etc as per the existing colour code complete all as spcified and directedNote:-1. Painting should be done with existing colour codes. 2. Quotated rate shall deemed to be included for preparation of old painted surface and applying zinc chrome primer over rusted portion. |
| 60 | 3 X 150TR |
| 61 | 3 X 70/80 TR |
| 62 | 3X25 TR (Indoor & Outdoor of Air cooloed plant) |
| 63 | S & F Butterfly Valves of Cast Iron, 150 mm dia with counter flanges including all necessary bolts, nuts, necessary cutting, welding and painting the welded portion, flanges etc to match with existing colour scheme and tasting leaks including taking down old unserviceable valve complete all as specified and as directed. |
| 64 | Supplying and laying MS ERW Pipe, 150 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. |
| 65 | Supplying and laying MS ERW Pipe, 125 mm bore, Heavy Grade, conforming to IS – 1239 including all fittings laid in trenches or laid in floors or fixed to walls and ceilings including testing and taking down existing MS Pipe of any description and in any position complete all as specified and as directed. |
| 66 | S&F oil perssure deferential cut out unit including necessary wiring and testing & comissioning including taking down the defective unserviceable oil pressure deferential cut out unit complete all as specified and as directed. Make:-DANFOSS/RANCO |
| 67 | Ditto all as per item no. 19.00 above but High pressure cut out. |
| 68 | Ditto all as per item no. 19.00 above but low pressure cut out . |
| 69 | M & L repairs of fan hub assembly of bore dia 38mm with fan blades 1500mm (04Nos)complete all as specified and as directed. |
| 70 | S & F repair of CT fan motor of capacity 7.5 HP complete all as specified and as directed. |
| 71 | M & L for reparing of malfnctioning of VFD units, compressor units and making them functional complete all as specified and as directed. |
| 72 | M & L for programming of VFD/compressor units of different capacities and getting all functioning again, complete all as specified and as directed. |
| 73 | M&L for taking down the defective fan motor of flange mounted extended type shaft upto 3 HP, 3 phase, 415 volts, 6 pole, 900 RPM, 50Hz,along with fan assembly and dismantling the motor complete cleaning with CTC, including rewinding the motor with appropriate guaue copper wire, necessary paper, tape, terminal etc., insulation shall be of class 'F' and degree of protection shall be IP-55, the work includes renewal of all corroded bolts & nuts, terminal block and assembling, fixing in position, fixing of fan blade and alignment of the fan blade for the suitable air throw of the cooling tower , testing & commissioning the cooling tower motor, complete all as specified and as directed. |
| 74 | M & L for dismantling the defective induction motor of capacity 30 KW of any make 415 V any duty or any class of insulation , taking down from bed duly coupled with pump/ in AHU drive , transporting to work shop, removing the burnt out stator, complete cleaning the stator, remove the cabon and cleaning with CTC/petrol and winding the stator with super enamelled copper wire of appropriate gauge as per the existing standard, varnishing and baking , including replacing of both end bearings, and assembling, transporting back to site, fixing back to position coupling with pump/AHU motor including match proper aligment with drive set and testing & commisioning the motor .complete all as specified and as directed. |
| 75 | S & F of pre Air filter of 90 down 10 micro washable made out of fiber visco type size of 500x400x50 mm complete all as specified and as directed. |
| 76 | S & F of pre Air filter of 90 down 10 micro washable made out of fiber visco type size of 500x500x50 mm complete all as specified and as directed. |
| 77 | S & F of pre Air filter of 90 down 10 micron washable made out of fiber visco type size of 600x600x50 mm complete all as specified and as directed. |
| 78 | S & F of pre Air Filter of 90 down 10 micron washable made out pf fiber visco type size of 500x600x50 mm complete all as specified and as directed. |
| 79 | S & F of pre Air Filter of 90 down 10 micron washable made out pf fiber visco type size of 600x400x50 mm complete all as specified and as directed. |
| 80 | S & F of pre Air Filter of 90 down 10 micron washable made out pf fiber visco type size of 400x400x50 mm complete all as specified and as directed. |
| 81 | S & F PVC Fills size of 600x300x150 mm for FRP Cooling tower complete all as specified and as directed. |
| 82 | M & L for Insulation of M S Pipe 150mm size with PUF slab 40 mm thick with and including applying bituminuous compound and GI cladding with 26 gauge GI sheet complete complete all as specified and as directed. |
| 83 | Supply, fixing, testing and commissioning VFD Drive for 150 TR AC plant, 110KW/150 HP, Heavy duty, three phase, 415 V, 50 Hz including taking down old unserviceable drive complete all as specified and as directed. |
| 84 | M & L for Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint complete complete all as specified and as directed. |
| 85 | M & L for PCC 1:2:4, Type B-1, using 20 mm graded stone aggregate as in Coping,support of cooling tower/motor base including necessary formwork as require at site including dismantling complete all as specified and directed. |
| 86 | M & L for brick work with Fly Ash bricks, straight or curved on plan exceeding 6 m mean radius built in Cement Mortar 1:4 including dismantling of old existing structure complete all as specified and as directed. |
| 87 | M & L for rendering to brick / concrete surfaces, 15 mm thick in Cement Mortar 1:4, surfaces finished even and fair complete all as specified and as directed. Please Enable Macros to View BoQ information |
