Military Engineer Services-MES has published Tender For Repair / Maintenance Of Ac Plants At Ins Dega Under Age E/M No-Ii Of Ge (Utility-I) Visakhapatnam. Submission Date for this Tender is 27-10-2023. HVAC Tenders in visakhapatnam Andhra Pradesh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 16-Oct-2023 | BOQ_Corrigendum | BOQ | 27-10-2023 |
| Sl. No. | Item Description |
| 1 | M&L for carrying out descaling of shells and tubes of water cooled type condenser of capacity 12.5 TR & of make Voltas / Bluestar by disconnecting the inlet and outlet water connections and providing dummy to the inlet and outlet, descaling the condenser by circulating the circulated descaling agent R-111 or equivalent chemical or organic compound at proper ratio circulated chemical till removal of complete scale deposited inside the copper tubes, opening both end cover by condenser, brushing the copper tubes with appropriate size nylon brush, removing complete scale and flushing out the tubes & degreasing with caustic soda solution & flushing and boxing up both end covers, connecting up the water inlet & outlet connections including replacement of damaged rubber gaskets and leak testing the joints for water leakage complete all as specified and directed. |
| 2 | All as per Sl item No. 1.00 above but capacity of 25 TR |
| 3 | All as per Sl item No. 1.00 above but capacity of 70/80 TR |
| 4 | All as per Sl item No. 1.00 above but capacity of 150 TR |
| 5 | M&L for carrying out leak testing of chiller type system of capacity 12.5 TR & of make Voltas / Blue star by extracting the existing available gas from system to separate cylinder, storing and pressuretesting the complete system with dry nitrogen and checking the leaks, identifying the leaks, rectification of leaks by brazzing / welding at the leak points / replacing by damaged valve gland package / gasket etc and after rectification of all the leaks, pressure testing the complete system up to 300PSIG at high side, 200PSIG 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 shells & condensor control complete all as specified and as directed by Engr-in-Charge. |
| 6 | All as per Sl item No. 5.00 above but of capacity 25 TR |
| 7 | All as per Sl item No. 5.00 above but of capacity 70/80 TR |
| 8 | All as per Sl item No. 5.00 above but of capacity 150 TR |
| 9 | Supply only charge refrigerant gas 134 A (environmental friendly) for charging including leak testing the system all as specified & directed by Engineer-in-charge Make : Mafron / Freon / Floron |
| 10 | S&F in repair V belt of section A-28 for AHU drive set in proper alignment complete all as specified and as directed Make : Ecodrive / Poly-F / Hilton / Optimax / Dunlop |
| 11 | All as per Sl item No. 10.00 above but V belt Section A-31 |
| 12 | All as per Sl item No. 10.00 above but V belt Section A-35 |
| 13 | All as per Sl item No. 10.00 above but V belt Section B-54 |
| 14 | M&L for servicing / cheking / inspecting AHU of capacity upto 5000 CFM AC plant, with and includingdismantlingunits sheet metal parts, blowing out dust, chemical cleaningby sprayingthe organic based scale removing agent vaniklin at appropriate ratio till removal of complete dust & scale deposits in the fins area across the evaporator coil, flushing through for proper air flow acrossthe coil, cleaning of expansion valve, cleaning of air filters, cleaning the motor & greasing of blower motor, cleaning the condensor tray & drain pipe, renewal of rusted bolt, nuts and applying one coat of synthetic emamel paint over blower motor, water drain lines & applying one coat of synthetic enamel paint over coat of primer on all other rusted portion, replacement of the pre filters, including checking the alignment of the drive set, testing and commisioning complete all as specified and as directed. |
| 15 | All as per Sl item No. 14.00 above but AHU of capacity of 5000 to 20000 CFM AC Plant |
| 16 | All as per Sl item No. 14.00 above but AHU of capacity of 21000 to 40000 CFM AC Plant |
| 17 | M&L for dismantling the defective induction motor of capacity 5 to 7.5HP & of any make, 415 V, 4 pole, 1200-1500 RPM, 50Hz, of any duty or any class of insulation, taking out from the bed duly coupled with pump / compressor / in AHU, transporting to work shop, removing burnt out winding from stator / motor, rewinding with suitable gauge of super enamelled copper wire of approved make and replacing drive end and non drive end bearings, insulation materials, varnishing, heating reassembling, bringing back to existing location, re-installing, testing and commissioning all as specified and directed. Note: - Motors removed for rewinding shall be overhauled completely by replacing defective bearings and the quoted unit rate shall be deemed to be inclusive of the same. |
| 18 | All as per Sl item No. 17.00 above but motor of capacity above exc 7.5 but not exc 12.5 HP |
| 19 | M&L for servicing of defective VFD of capacity 150 TR AC plants including replacement of minor spare parts complete all as specified and as directed. Note:- S&F for minor spare parts other than those catered in subsequent items of this BOQ, shall be considered to be included in this item and unit rate quoted against this item shall be considered to include for the same. |
| 20 | All as per Sl item No. 19.00 above but for VFD of capacity 70/80 TR AC Plants. |
| 21 | All as per Sl item No. 19.00 above but for VFD of capacity 25 TR AC Plants. |
| 22 | All as per Sl item No. 19.00 above but for VFD of capacity 12.5 TR AC Plants. |
| 23 | S&F in repair Top Fan as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 24 | S&F in repair Mixing Fan as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 25 | S&F in repair Heat Sink Fan as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 26 | S&F in repair Graphical LCP as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 27 | S&F in repair HF Card as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 28 | S&F in repair IGBT as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 29 | S&F in repair Gate drive card as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 30 | S&F in repair inrush Card as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 31 | S&F in repair Rectifier as per OEM suitable for VFD of capacity 80 to 150 TR AC plant of make Voltas / bluestar / Carrier / Denfoss complete all as specified and as directed. |
| 32 | Carrying out repairs / maintenance & attending to breakdown of 70 to 150 TR variable speed screw type liquid chiller central AC plant of make Voltas / Bluestar as per the following scope of the work given below including carrying out general repairs and periodical servicing to ensure smooth and trouble free operation of plants to the entire satisfaction of user / department all as specified and as directed by Engr-in-Charge. 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 authorised technician / service engineer of OEM once in a quarter other than breakdown calls for monitoring the operational condition of AC plant including preventive maintenance / breakdown calls whenever required. Each preventive maintenance & breakdown call if any, will be measured as one Job. Contd... |
| 33 | (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 heat exchange inlet and outlet is correct, check the refrigeration system, motors and starters for performance and healthy condition of plant. (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 replacement if required. (j) Filling only the refrigerant as a result of leak arising from the system due to standard wear and tear. (k) Repairing / replacing the minor spares / components (other than those catered in subsequent item of this BOQ) of the equipment at site or at workshop as required (l) To check proper functioning of microprocessor and take control test. (m) Intimating any breakdown requiring specific major repairs / overhauling to the contractor / department for immediate rectification of defect. (n) Attending the complaints / breakdown whenever received by user / JE / Engineer in charge and attending the complaint for same within 24 hrs of receipt. (o) 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. (p) Any minor spares / repairs items which are required to keep the plant in operational are deemed to be included in scope of this item. |
| 34 | All as per Sl item No. 32.00 & 32.01 above but for 5.5 to 25 TR capacity package type, chiller type, water cooled and air cooled AC plant |
| 35 | S&F in repair oil cartridge filter as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar complete all as specified and as directed. |
| 36 | Supply & filling compressor Oil suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar complete all as specified and as directed. Make : HP / IOCL / Castrol / Emkarate / Copeland / Z Premium / Vacpac / MAG1 / Danfoss |
| 37 | S&F in repair Temperature sensor as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar complete all as specified and as directed. |
| 38 | S&F in repair LP sensor as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar complete all as specified and as directed. |
| 39 | S&F in repair Chiller flow switch with connection pipe as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 40 | S&F in repairpressure gauge 0-7 kg/cm2 as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 41 | S&F in repairMNX 25 contactor 220 V, 50Hz as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 42 | S&F in repairMNX 40 contactor 220 V, 50Hz as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 43 | S&F in repairMNX 12 contactor 220 V, 50Hz as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 44 | S&F in repair MNX relay 9-14 AMPS as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 45 | S&F in repair timer star delta as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 46 | S&F in repair Auxillary block as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar or suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 47 | S&F in repair drier assly as per OEM & suitable for 70 to 150 TR capacity variable speed screw type liquid chillar of Make Voltas / Bluestar complete all as specified and as directed. |
| 48 | S&F in repair ventilating fan as per OEM & suitablefor HVAC drivepanel of 132 KW / 200 HPof the AC plant complete all as specified and as directed. |
| 49 | S&F in repair sealed compressor of capacity 5.5to 10 TR of make as per OEM & suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 50 | S&F in repair sealed compressor of capacity 11.6to 12 TR of make as per OEM & suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 51 | S&F in repair fan blade of make as per OEM & suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 52 | S&F in repair fan motorof make as per OEM & suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 53 | S&F in repair drier asslyof make as per OEM & suitable for package air conditioning unit of make Voltas / Blue star / Carrier complete all as specified and as directed. |
| 54 | Supply & filling compressor oil of grade P-180 & suitable for scroll type hermetically sealed compressor complete all as specified and as directed. Make : HP / IOCL / Castrol / Emkarate / Copeland / Z Premium / Vacpac / MAG1 / Danfoss |
| 55 | M&L for carrying out repair to cooling tower fan motor of 5 to 7.5HP capacity, flange mounted extended shaft type, including taking down from position, transporting to local work shop, dismantling the motor, replacing damaged unserviceable shaft, bearings, rusted nuts & bolts including servicing motor, varnishing to winding, external painting of motor, providing PVC cap for top portion of motor for main protection, re-assembling etc and bringing the assembly back and installation to position and testing commissioning complete all as directed by Engineer-in-charge. |
| 56 | S&F in repair cooling tower motor base frame, base plate, Nut & bolts complete all as per the existing size and shape, suitable for 70 to 150 TR capacity AC Plant complete all as specified & as directed by Engr-in-charge |
| 57 | S&F in repair fan motor of 7.5 HP from cooling tower, 3 phase, 720RPM, 440V, 50Hz, IP-55, extended type shaft, flange mounted, weather proof along with fan assembly with 1300mm sweep with 04 fan blades & suitable hub assembly clamps nut & bolts etc. Including connecting the power supply and testing all as specified as directed by Engr-in-charge. |
| 58 | M&L for complete overhauling / servicing of FRP cooling tower of capacity 150 TR, removal of complete scales, dirt etc. by using chemicals, cleaning the slump louvers, PVC fills, fan assembly, renewal of spray nozzles with connected pipe, renewal of nuts-bolts, leak arresting of the FRP tank and complete painting of the cooling tower as per the standard practice, repairing leakage portion by lining with FRP material including replacement of rusted nut-bolts and replacing of bird screens at air intake portion, testing and commissioning complete all as specified and as directed. |
| 59 | All as per Sl item No 57.00 above but of capacity 70/80 TR |
| 60 | All as per Sl item No 57.00 above but of capacity 25 TR |
| 61 | M&L for taking down 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, testing and commissioning of the drive set upto 25HP complete all as specified and directed. |
| 62 | M&L for preparation of old decorated surfaces of central type Air conditioning plant of capacity 3 x 150 TR & painting the same with one coat of synthetic enamel paint including painting to compressor, condensers, chillers, Refrigeration lines Condenser water line, pumps, motors foundation frame valves etc as per the existing colour code complete all as specified and as directed by Engr-In-Charge. Note:- Rusted surfaces shall be scraped with sand paper and shall be applied with one coat of red oxide primer before application of paint and unit rate quoted against this item shall be considered to include this aspect. |
| 63 | All as per Sl item No. 61.00 above but of capacity 3 x 70/80 TR |
| 64 | All as per Sl item No. 61.00 above but of capacity 3 x 25 TR (Indoor & outdoor Air cooled plant) |
| 65 | All as per Sl item No. 61.00 above but of capacity 3 x 12.5 TR |
| 66 | M&L for complete servicing / repairs to package air conditioning unit of make Voltas & of capacity 5.5 TR compressor units with and including servicing of three Nos outdoor units complete by blowing out dust, spraying the organic based scale removing agent in appropriate ratio to condenser fan area till removal of complete scale and dust, flushing through for proper air flow across the coil, checking of all electrical connections, greasing of motor bearing, renewal of all defective copper tubes from indoor unit to outdoor unit, replacement of corroded sheet metal screws, applying synthetic enamel paint over a coat of primer on the rusted portion, reassembling the sheet metal parts and testing the unit all as specified and directed. Note :-Required copper pipe shall be measured and paid under relevant item of BOQ. |
| 67 | M&L for complete servicing / repairs to Air cooled central air conditioning unit of Make voltas & of capacity 3 x 12.5 TR consisting of 3 Nos 12.5 TR compressor units, with and including servicing of outdoor units complete by blowing out dust, spraying the organic based scale removing agent in appropriate ratio to condenser fin area till removal of complete scale and dust, flushing through for proper air flow across the coil, checking of all electrical connections, greasing of motor bearing, renewal of all defective copper tubes from indoor unit to outdoor unit, replacement of corroded sheet metal screws, applying synthetic enamel paint over a coat of primer on the rusted portion, reassembling the sheet metal parts and testing the unit all as specified and directed. Note :- (i) Required copper pipe shall be measured and paid under relevant item of BOQ. (ii) Servicing or 01 compresor / outdoor unit shall be measured as 01 unit of this item. |
| 68 | Supply and charge refrigerant gas R-22 / R 407 C including leak testing the system, arresting the leaks with necessary materials like gasket/ "o" rings/ washers all as specified and as directed by Engineer-in-charge. Make : Mafron / Freon / Floron |
| 69 | M&L for complete leak testing the indoor and outdoor units, refrigerant pipe with nitrogen gas, locating the leaks, rectifing the leak by brazing / welding and pressure testing the complete system for the capacity up to 5.5 to 10 TR air cooled package AC system complete all as specified and as directed by Engr-in-Charge. |
| 70 | S&F butterfly valve 150 mm bore, PN 1.6 with necessary counter flanges, rubber gasket, bolts, nuts and washer including taking out existing valve complete all as specified and as directed by Engineer-in-Charge. Make : Zoloto / L&T/ Audco / Leader |
| 71 | M&L for taking down burnt condenser / indoor / outdoor unit fan motor of package type unit of capacity upto 12TR and carrying out rewinding including renewal of bearings & bushes of motor and fixing back to the position, testing and commissioning complete all as specified and as directed by Enger-in-Charge. |
| 72 | M&L for taking down burnt condenser / indoor / outdoor unit fan blade of package type unit of capacity upto 12TR and supply and fix new fan blade as per existing complete all as specified and as directed. |
| 73 | S&F hard drawn, seamless, heavy gauge, copper refrigerant pipe of L type & of size 1/2 inch, fixed in ceiling / wall, suitable for air cooled package units including necessary supports wherever required; fittings such as elbows,tee, sockets, brackets, clamps etc., brazing & taking down the existing damaged refrigerant copper pipe complete all as specified and as directed. |
| 74 | All as per Sl item No. 72 above but of size 5/8 inch |
| 75 | All as per Sl item No. 72 above but of size 3/4 inch |
| 76 | All as per Sl item No. 72 above but of size 7/8 inch |
| 77 | S&F insulation foam, tubular type, suitable for refrigeration copper pipe of size 1/2 inch interconnecting indoor and outdoor Units with necessary adhesive tapes complete all as specified and as directed by Enger-in-Charge. |
| 78 | All as per Sl item No. 76 above but suitable for refrigeration copper pipe of size 5/8 inch |
| 79 | All as per Sl item No. 76 above but suitable for refrigeration copper pipe of size 3/4 inch |
| 80 | All as per Sl item No. 76 above but suitable for refrigeration copper pipe of size 7/8 inch |
| 81 | M&L for taking down blower assembly of blower unit of package type AC plant of capacity 5.5TR / 10TR and taking out the damaged / worn out AHU shaft assembly and bearings and transporting to workshop to carry out necessary repair / replacement ofAHU shaft, replacement of pillar block bearing units, re-assembling the same, transporting back to site and installing into position, matching of proper alignment, testing and commissioning complete all as specified and as directed by Enger-in-Charge. |
| 82 | S&F in repairs LED bulb (red / green colour as directed) suitable for existing LED indication lamp of make L&T/ Havells / CG / Siemens / GE / BCH / Schneider |
| 83 | S&F in repair MS pipe with flanged ends, 150 mm bore, heavy grade including flanges, all fittigns required, gasket, nut-bolt etc., making joints, laid in trenches or on ground / vertically complete all as specified and as directed by Engineer-in-Charge. Make -Tata / Jindal Steel / Surya Roshni Ltd. / Bhushan Power & Steel Ltd. / M/s APL Apollo Tubes Ltd Note:- All fittings such as Tee, Bend, Cross etc required shall deemed to be considered in unit rate quoted against this item. |
| 84 | S&F in repair new oil pressure differential cut out unit including necessary wiring and testing & commissioning all as specified and directed. |
| 85 | All as per Sl item No. 83.00 above but High pressure cut out |
| 86 | All as per Sl item No. 83.00 above but low pressure cut out |
| 87 | 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 gauge copper wire, necessary paper, tape, terminal etc., insulation of class "F" and degree of protection shall be IP-55, including renewal of all corroded bolts & nuts, terminal block and assembling, fixing in position, fixing of fan blade and alignment of the fan blade for suitable air throw of the cooling tower, testing & commissioning cooling tower motor complete all as specified and as directed by Engr-in-Charge. |
| 88 | M&L for dismantling the defective induction motor of capacity 9.3 to 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, removing the carbon and cleaning with CTC / petrolandwinding the stator with super enameledcopper wire of appropriategaugeas per existing standard, varnishing and baking, including replacing of both end bearings, assembling, transporting back to site, fixing back to position coupling with pump / AHU motor including matching proper alignmentwith drive set, testing & commissioningthe motor complete all as specified and as directed by Engr-in-Charge. |
| 89 | S&F pre air filter of 90 down 10 micro washable made out of fiber viscotype of size 500mm x 400mm x 50 mm |
| 90 | All as per item No. 88.00 but of size of 500mm x 500mm x 50 mm |
| 91 | All as per item No. 88.00 but of size of 600mm x 600mm x 50 mm |
| 92 | All as per item No. 88.00 but of size of 500mm x 600mm x 50 mm |
| 93 | All as per item No. 88.00 but of size of 600mm x 400mm x 50 mm |
| 94 | All as per item No. 88.00 but of size of 400mm x 400mm x 50 mm |
| 95 | S&F PVC Fills of size 600mm x 300mm x 150 mm as per OEM & suitable for FRP Cooling tower complete all as specified and as directed by Engr-in-Charge. |
| 96 | M&L for insulation to MS Pipe of size 150 mm with PUF slab of 40 mm thick with and including applying bituminous compound and GI cladding with 26 gauge GI sheet complete all as specified and as directed by Engr-in-Charge. |
Copyright © 2024 · All Rights Reserved. Terms of Usage | Privacy Policy
For Tender Information Services Visit : TenderDetail
