Tender For Repair To Ac Plant At Birpur Under Ge Kaluchak; 1 Routine checking of complete central AC plant of 3 x 12 TR capacity as required during the contract period, fault detectionby OEM/authorised partner of OEM with whom MOU stands signed for smooth functioning of the plant as well as for uninterrupted running all as required at site, complete all as specified and as directed 2 Supply and topping of chiller/ compressor unit (12TR AC Plant) with R-407C refrigerant including leak testing and necessary associated repair works,complete all as specified and as directed 3 Supply, installation, testing and commissioning of microprocessor controllers with scanners/ under voltage/ over voltage protections for chillers including caliberation/ settings as per the requirement of the system of chiller controller for proper safeties like under voltage, overvoltage, low pressure and high pressure complete including taking down old unserviceable controllers,complete all as specified and as directed 4 Pressure transducers for suction pressure of compressors including taking down old unserviceable and testing,complete all as specified and as directed 5 Pressure transducers for discharge pressureof compressors including taking down old unserviceable and testing,complete all as specified and as directed 6 Complete overhauling of Delta cooling tower by chemical cleaning of sump, dismantling and servicing of cooling tower strainer, dismantling of cooling tower motor and fan and sprinkaler assembly, descaling of sprinkler pipes and adjustment of sprinkler speed and refitting of motor and fan assembly after satisfactory operation including descaler and replacement of PVC honeycomb fills,complete all as specified and as directed 7 Repair & servicing of existing pump starters in the LT control panels of any rating/ type and any capacity, Replacing unserviceable components such as meters, cable lugs, Push buttons and CT coils etc including necessary wiring for DOL and Star- Delta starters using FRLS copper conductor of size not less than 1.5 Sqmm and necessary feruls and casing capping required to secure the wiring complete all as directed testing and commisioning to the entire satisfaction of thecomplete all as specified and as directed 8 Servicing of condensor water pumps including replacement of impellors and seals,complete all as specified and as directed 9 Servicing of chilled water circulations pumps including replacement of impellors and seals,complete all as specified and as directed 10 Servicing of AHU cooling coil including chemical cleaning with OEM recommended chemical scalefoe,complete all as specified and as directed 11 Disconnecting the electric connections of the electric motor 2 HP of the cooling tower blower, taking out the old unserviceable winding wire, cleaning the slots for rewinding, rewinding the electric motor 3 Phase, 415 voltswith existing size of super enamelled copper winding wire including allied materials like cotton tapes, glass sleeves, varnishing and assembling the complete motor and testing,complete all as specified and as directed. 12 Descaling of condensors with scalefoe 100 chemical by pressure pump, opening of condensor head and rodding with nylon brushes including fixing new gasket, condensors covers and refitting with covers,complete all as specified and as directed 13 V-Belt as per existing for AHU including taking down old unserviceable V-Belt,complete all as specified and as directed 14 Start push button assembly, complete all as specified and as directed 15 Stop push button assembly, complete all as specified and as directed 16 Water pressure gauge 100mm range ( 0 to 75psi) including taking down old unserviceable gauge,complete all as specified and as directed 17 Temperature gauge stem type including taking down old unserviceable gauge,complete all as specified and as directed 18 Electronic Star-Delta Timer type ST100 160 - 500V, for 3 - 30 sec Model No : ST80328OOOO Make :Schneider/ Siemens/ L&T/ Legrand/ ABB complete all as specified and as directed 19 Contactor, triple pole, 440 volts Model No MNX 110 including taking down old unserviceable contactor,complete all as specified and as directed 20 Prefilters (10 microns) in the AHUcomplete including taking down old unserviceable prefilters, complete all as specified and as directed 21 Y- strainer for chilled water and condensor water lines completeincluding taking down old unserviceable Y strainer, complete all as specified and as directed 22 AHU controls suitable for 12 TR water cooled air conditioning system complete including taking down old unserviceable AHU controls, complete all as specified and as directed 23 Filter drier 1/2 to 5/8 suitable for 12 TR Air conditioning plant including taking down old unserviceable filter, complete all as specified & directed. Make: Emerson/ Danfoss/ Catchall/ as per OEM 24 Non return valve 50 mm for pump,conforming to relevant IS with jointing materials including taking down old unserviceable valve, complete all as specified and as directed 25 Dismantaling and taking down existing duct of any size and type with insulation of any types complete all as specified and as directed 26 Supply , assembly and erection of GI sheet with C & SS rectangular/square duct made out of L shaped hollow profile, duly factory boxed, incl all accessories such as Corner, Cleat, Carriage bolt, Gasket and appropriate sealant on longitudinal joints etc of size 18 Gauge. complete all as specified and as directedNote:-The duct shall be fabricated in factory as per IS655-2006 and to be assembeled at the site, No fabriction at site will be permitted . Contractor must visit the site before quotingof the rates .The whole ducting shall be tested for any leakage and vibration after completion of job all as specified and directed. 27 S & F Framed brackets of angles or tees with web and flanges for duct supports cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc.. n exc 10 kg each brackets, conforming to Fe.290.Gde-E-165 with taking down old u/s MS Channel support of AC ductcomplete all as specified and as directed 28 Supply and fixingfor thermal insulation of supply/return air duct with cross linked closed cell performed sections of polyethylene (FR) insulation of 25 mm laminated with Aluminium Metalised polyester foil having a low stable k value of 1.6 with minimum density of 28 kg/cum duly pasted on duct with good quality adhesive and nitrile tape, isulation over duct shall be provided in such a way that it should cover the duct from all the sides including supportscomplete all as specified and as directed 29 M&L for Taking down and refixing existing grill of any size and any type complete all as specified and as directed 30 Dismantling and taking down unserviceable UG cable of any size complete all as specified and as directed 31 MCB, triple pole, 63 Amps,AC,415v, 50Hz, breaking capacity 10 KA, C-curve including taking down old unserviceable MCB, complete all as specified and as directed 32 MCB, triple pole, 40 Amps,AC,415v, 50Hz, breaking capacity 10 complete all as specified and as directed 33 MCCB of capacity 125 Amps, 3 pole, 415volt, 50Hz, rupturing capacity 25 KA (minimum) or higher,AC, 50 C/S, including taking down old unserviceable MCCB, complete all as specified and as directed 34 MCCB of capacity 160 Amps, 4 pole, 415volt, 50Hz, rupturing capacity 36 KA (minimum) or higher,AC, 50 C/S, including taking down old unserviceable MCCB, complete all as specified and as directed 35 Voltmeter (0-500V) digital flush type 96mm, square type including taking down old unserviceable voltmeter, complete all as specified and as directed 36 Ammeter (0-100A) digital flush type 96mm square type complete all as specified and as directed 37 Over load relay with range (12- 18) Amps including taking down old unserviceable relay, complete all as specified and as directed 38 Over load relay with range (07- 10) Amps including taking down old unserviceable relay, complete all as specified and as directed 39 Indoor Thermometer Digital Thermo-Hygrometer Temperature and Humidity Meter Room Climate Indicator with Calibration Touchable Night Light, Comfort Display MAX/MIN Data Sets,complete all as specified and as directed 40 On load change over switch in sheet metal enclosure, 200 Amps, 415 volts, 4 pole, modular type, positive isolation, door interlock & padlock facility, conforming to IS:13947 (Part-3); IEC:60947-3 including all connecting/ jointing materials & taking down old unserviceable change over switch, complete all as specified and as directed 41 MCCB of capacity 250 Amps, 4 pole, 415volt, 50Hz, breaking capacity 36 KA (minimum) or higher, adjustable thermal and fixed magnetic release, complete as per OEM standard designincluding taking down old unserviceable MCCB,complete all as specified and as directed 42 MCCB of capacity 200 Amps, 4 pole, 415volt, 50Hz, breaking capacity 36 KA (minimum) or higher, adjustable thermal and fixed magnetic release, complete as per OEM standard designincluding taking down old unserviceable MCCB,complete all as specified and as directed 43 Supply and fix of Impulse EmergencyFirst aid kit box with basic medicine like Band Aid strips of min 20 Nos, Antiseptic cream, Cotton, Surgical tape 1 inch, non sterial gauge swabs, Hydrogen peroxide bottle, medical spirit bottle complete all as specified and as directed 44 Supply and fix of Cooling Tower Sprinkler Fan Apply for Round Type Counter Flow in Cooling Tower for smooth functioning of the plant as well as for uninterrupted running all as required at site, complete all as specified and as directed 45 Material and labour strip opening of compressor modelscrew type of Suitable Make, 12 TR capacity cheking of serviceability of parts, keeping a side for refixing , replacing the unsv worn out parts fortop overhauling the compressor and remove the insulation of the coil/all spare parts including washer, nut & bolts cleaning, drying varnishing baking and refixing all as per the existing portion coil insulationbinding properly after drying refixing in the same portion complete incl grinding, polishingand after minor repairs /replacement of minor parts with necessary split pins, recondition of suction and discharge valve replacing rubber sealing etc all as specified and directed by Engineer-in-charge Note for item No. (I) Replacement parts, Refrigerant gas and compressor oil for topping up will be measured and paid seperately, (ii) Labour element is included in unit rate(iii) Unit rate also includes evacuating gas and oil from the system and recharging on completion. Supply only following sparesfor the Compressor screw type MakeThe part shall be as per existing compressor make. 46 Main bearing non end driving for compressorcomplete all as specified and as directed 47 Main bearing driving end for compressorcomplete all as specified and as directed 48 Connecting rodscomplete all as specified and as directed 49 Discharge reed with springs (sets)complete all as specified and as directed 50 Suction reed with springs (sets)complete all as specified and as directed 51 Piston ring (sets)complete all as specified and as directed 52 Cylinder linercomplete all as specified and as directed 53 Piston any sizecomplete all as specified and as directed 54 Gasket setcomplete all as specified and as directed 55 Gudgen pin with bush.complete all as specified and as directed 56 Crank shaftcomplete all as specified and as directed 57 Internal Oil filtercomplete all as specified and as directed 58 External Oil filtercomplete all as specified and as directed 59 Oil pressur switchcomplete all as specified and as directed 60 Fuse as per existingcomplete all as specified and as directed 61 Compressor contactorcomplete all as specified and as directed 62 Compressor Oilcomplete all as specified and as directed 63 Filter drier complete all as specified and as directed 64 XLPE insulated, screened PVC bedded galvanized steel strip or wire armoured electric cables (heavy duty) of size 120 Sqmm, 3.5 core with aluminium conductor (multistranded) 1100 volts grade (earthed) connected with suitable cable gland and aluminium lugs, laid in trenches or passing through pipes including testing after completion and removal of old unserviceable cable, complete all as specified and as directed 65 Excavationintrenchesnotexceeding1.5 mtr wideandnotexceeding1.5 mtr indepthandgettingoutin any type ofsoilforfoundation of pole, stay, takingup orlaying ofcable etc,complete all as specified and as directedNote :Due care shall be taken while deciding cable route for excavation.However any damage to Signal, BSNL, MES cable water/sewage pipe or any other service while excavation will be made good by the contractor and cost of the same for jointing material & labour is deemed to be included in the cost of excavation. 66 Returning, filling in (soil), including spreading, leveling, watering and well ramming in layers not exc. 25cm, complete all as specified and as directed 67 Removing excavated material to a distance not exc. 50m and depositing where directed at a level not exc. 1.5m above the starting point, complete all as specified and as directed 68 Sand cushioning to under ground cable, laidintrenches 8cm thick below the cable and 15cm thick above the cable after laying and stretching the cable complete punned to 18cm, complete all as specified and as directedNote:- Punned thickness of sand will be measured and paid. 69 Supplying and laying reinforced precast, Class LV, Type I, flat, size 250mm x 150mm x 40mm concrete cable cover, complete all as specified and as directed 70 Galvanised iron tube 80mm bore light grade (ISI marked) for cable protectionto poles/under floor/under roads/alongwithwallscomplete including MS clamps offlat iron 25x3mm duly painted, GI nuts, bolts and washers & sealing of pipe ends with approved sealing compound, complete all as specified and as directed 71 M&L for Cutting/Boringof road/Hard standing to a size of 30 cm in width and not exceeding 90 cm in depth for laying of protection pipe/water line/Cableincluding returning filling, Including spreadingand providing PCC in 1:2:4 B1 using 20 mm grade stone aggregate for the top 100mm layer, complete all as specified and as directed 72 M&L for painting the exterior parts of cooling towers with epoxy seal paint as per the manufactures specifications including preparing the surfaces of cooling towers after removing all the PVC fill , nozzles, ID fan and cleaning the water collecting tray for algae free surfaces using necessary detergent chemicals complete sealing the leakage on the body if any while apply the epoxy sealing paint complete all as specified and as directed 73 Leak testing of the AC plant with nitrogen (N2) pressure after evacuating of the existing gas from the system into empty cylinder by separating the entire system, like compressors, evaporator, condensers, cooling coil and refrigerant lines and rectifying the leakage including cutting welding brazing etc and replacing of O ring, washers, gaskets etc flushing out the Nitrogen and vaccumising, recharging the taken out refrigerant gas including testing complete all as directed to AC plantsof capacity 3x12 TRAC plantcomplete all as specified and as directed 74 Supply & fix Scale guard of suitable size of existing Central AC followingplants of 3x12TR capacity water cooled pipe line removing existing scale guard carefully without any damaging of pipe line and fix new scale guard testing complete all as specified and as directed 75 Supply and laying electricalrubber matt confirming IEC 61111 ISI marked of grade, 6 mm thick, 1.0 mtr width, blue/black coloured anti skid taxture finish ROHS/PAH complete including fixing on ground using necessary chemical adhesive liquid complete all as specified and as directed 76 M & L in repair for earthing complete with galvanized steel earth plate 600x600x6mm thick buried vertically in ground to depth not less than 2.25 mtr below ground level, with top edge of the plate not less than 1.50 mtr below normal ground level, connected to GI earth lead wire4 mm dia by means of bolts, nuts,check nuts and washers of galvanized iron and connection to main switch board of panel, including watering pipe GI 20 mm bore light grade 15mm bore for earthing lead, wire mess, funnel, salt, charcoal dust, excavation and refilling pit with PCC 1:2:4 type B1(using 20mm dia stone aggregate) reinforced with 6mm dia round bar @ 75mm cement concrete both always with MS handle 12mm dia and frame all as shown in electric plate No 3 in page 497 of SSR Part I (2009) and pouring extra Clay Soil of qty not less than one cubic meter into the earth pit and alsoremoval of excavated soil not less than 50 mtr from the earthing place all as specified and directed and tested on completion. including testingall complete all as specified and as directed
