Repair/ Replacement And Servicing Parts Of Ac Plants, Vrv And North Side Of Runway Including Salawas And Kaylana And Allied Works At Afs Jodhpur-- 1 Material & Labour for finding out the leakage with the pressure test of water chiller scroll type capacityup to11 TR plant ,identifing gas and oil leakage and removing the same andLeak repairing by brazing/flaring andflushing the sysytem by nitrogen gasandpressure testing for leakage and rectifiedand after rectification vacumacation, pressuretesting,andgas charging R-407c for achieve desire pressure and testing complete to the entire satisfaction of Engineer-in-Charge NOTE :- Gas charging requiredshall be measured and paidseparatelyas supply only. note -all three units will be checked for leakage and rectified in each job. 2 Ditto all as per Ser item No 1.00 above but capacityup to11 TR to 25 TR, 3 Ditto all as per Ser item No 1.00 above but capacityup to 25 TR to 50 TR, 4 M&L for charging of refrigerant R-407c/410 Gas. (Make:- Mafron/ Feron/floron/du point) complete all as specified and directed 5 M&L for replacement ofthermostatic expansion valve suitable for water cooled scroll chiller unit cap 25/37/50 TR all as per sample, including brazing at both ends all as required and directed. 6 M&L for replacement of Drier filter suitable for Package type AC Plant cap 25/37/50 TR size 5/8 Make: Catch All Model : C-165 7 M & L for Descaling the chiller and compressser unit by descaling compound / hydrochloric acid by soaking method,disconnecting chiller unit from the system by taking out nuts, bolts, studs, valves and MS/GI pipe line from both side cover, cleaning each tube with nylon brush,flushing with alkaline solution,connecting back both side cover including replacingleather gasket 4 mm thick for following capacities of condensers suitable for AC Plant installed as indicated below complete all as specified and directed and all as per manufacturers instruction and to the entire satisfaction of Engineer-in-charge. (a) chiller unit cap 60 TR 8 b)Ditto all as per Ser item No 7.00 above but chiller unit cap 50 TR 9 c)Ditto all as per Ser item No 7.00 above but chiller unit cap 37 TR 10 d)Ditto all as per Ser item No 7.00 above but chiller unit cap 30 TR 11 e)Ditto all as per Ser item No 7.00 above but chiller unit cap 12.5 TR/11.5 TR/10TR 12 M&L for disconnecting electrical connections motor located at the top of cooling tower,keep cables at safe custody for reconnection and dismantling and taking out fan blade assembly along with motor mounted on base frame at the top of cooling tower after cutting/dismentalingall nuts, bolts and fixtures from the mounting frame and removing wholeassembly including motor and base frame from the top of cooling tower with the help of T&P for servicing of cooling tower suitable for 100-120 TR capcity including following complete:-(i) Cleaning /scrapping of inner& outer surface of FRP basin, repair of damaged portion if any incuding FRP lining of all surfaces joints to avoid leakage including replacement of all nuts and bolts joining all parts of Basin complete. (ii) servicing coolingtower plant through cleaning re-agent complete pipe line, including servicing of cooling tower motor and fan and make the necessary alignment with motor. (iii) replacement of bearing if any of suitable cap if any after necessory work including gressing and replacement of nut bolts and preventing leakage if any by means of suitable adetives etc all as directed and specified.(iv)taking out PVC fills blocks, cleaning and refixing as per existing location and channel direction if pvc fills vintage then replace with new one measure seprately .(v)servicing of spray header and sprinkler assy complete.(vi) repair of water strainer complete. 13 Ditto all as per Ser item No 12.00 above but cooling tower suitable for 25- 60 TR capcity 14 Supply and fixing Pressure switch0-30 BAR AKS 3000(060G1081) suction/discharge/oil pressure as directed 15 Supply and filling of compressor oil (mineral) suitable for voltas water cooled recirocating chillers/centrifugal/scroll chiller any grade as specified or suitable for ac plant compet all as specified and directed. 16 Supply and chargingfor refrigerant R-22 Gas (Make:- Mafron/ Feron/floron ) complete all as specified and directed. 17 M&L for replacement of water flow switch , suitaable for voltas water cooled recirocating chillers as per given sample complete all as specified and directed.Make -honeywell 18 M & L for replacement of microcomputer voltage protection device(MVPD) with display complete model-EC, Type-MVPD, Range 30-220 Amps,Aux supply-230V,Special -5 sec Curve MPD make -SOFTHARD. 19 M&L for replacement of chilled water sensorcomplete all as specified and directed 20 M&L for replacement of water pump for indoor unit of central ac plant of capacity 2/3.5/4 TR complete all as specified and directed as 21 M & L for replacement of microcomputer voltage protection device(MVPD) with display complete model-EC, Type-MVPD, Range 5-30 Amps,Aux supply-230V,Special -5 sec Curve MPD for 37.5 TR/50TR/25TR CHILLER make -SOFTHARD or equivalent complete all as specified and directed 22 M&L for repairs ofcondenser/chiller pumps from 2HPUpto 7.5 HP including dismantling ofPumpof following capacity and segregating to its parts for repairs and maintenance, replacement onlyofshaft bearing, impeller key, shaft sleeve, impeller and grinding / polishing, bend removing etc complete including painting by two coats of synthetic enamel paint reassembling of pump after completion of work & testing complete all as per direction and satisfaction of Engineer in charge.Note:-Supply only of bearing and sleeve, impellerwill be measured and paid under relevent item of work. 23 Supply and fix in replacementof spare parts of pumps sets (To be incorporated under respective item above ) :-(a) Shaft bearing as per existing specifications. 24 (b) Shaft sleeveas per existing specifications. 25 (c) Impellerwith keyas per existing specifications. 26 (d) Mechanical Couplings as per existing specifications. 27 (e) rubber type coupling as per existing specifications. 28 M & L for repairing /Disconnecting the electrical and mechanical connection of burnt electrical motors from the site / location, transporting to and from to work shop.Rewinding of electrical motors/ pump motorsby dismantling and removing the burnt cut copper winding wire cleaning the slots of stator with petrol and brushes winding polyster based super enamelledcopper wire of same gauge of original one with proper class of insulation including varnishing and heating the coil and remove air bubbles complete stator / roter after rewinding reassembling all parts including reinstalling connection to original position and testing on full load all as directed by Engineer in charge for different capacity of motor as per following :-(a) 1 to 2 HP 29 (b) 3 to 5 HP 30 (c) 7.5to 10 HP 31 M&L for replacement of Thermostat Honey well 0-30 degree C 32 M & L for Descaling the Condenser by descaling compound / hydrochloric acid by soaking method,disconnecting Condenser from the system by taking out nuts, bolts, studs, valves and MS/GI pipe line from both side cover, cleaning each tube with nylon brush,flushing with alkaline solution,connecting back both side cover including replacingleather gasket 4 mm thick for following capacities of condensers suitable for AC Plant installed as indicated below complete all as specified and directed and all as per manufacturers instruction and to the entire satisfaction of Engineer-in-charge. (a) chiller unit cap 60 TR 33 b)Ditto all as per Ser item No 32.00 above but chiller unit cap 50 TR 34 c)Ditto all as per Ser item No 32.00 above but chiller unit cap 37 TR 35 d)Ditto all as per Ser item No 32.00 above but chiller unit cap 30 TR 36 e)Ditto all as per Ser item No 32.00 above but chiller unit cap 12.5 TR/11.5 TR/10TR 37 supply and fix in replacement of Cooling Tower Sprinkler Assembly such as Sprinkler, Sprinkler Pipe, Elimentor, Tension bar and Turn buckle for Cooling Tower capacity 160/120/100 TR as existing on site make :-MIHIR or equivalent suitable as per existing and ali as perdirected by engg in charge. 38 S&F in replacement of of PN 1.6 butterfly valves size 125 mmduly insulated with companion flanges,nuts,bolts,gaskets etc.as specified . butterfly valves with cast iron body, seat of black nitrile rubber ,nylon coated S.G.iron disc,epoxy powder coated shaft AISI 410 etc.complete all as specified and directed. Make Audco/castel/kirloskar 39 Ditto all as per Ser item No 38.00 above but size 100mm. 40 Ditto all as per Ser item No 38.00 above but size 80mm. 41 Ditto all as per Ser item No 38.00 above but size 65mm. 42 S&F in replacement of air filter for AHU, Filter section consists of50 mm thick washable HDPE 90% down 10 micron Pre-Filters, AHU prefilter having HDPE media with aluminium / GI frame & filter as per the existing size of600mmX600mmX50/40 mm mm complete all as specified and directed.(Make :- Supreme/Athlete or equivalent 43 M&L for replacement of V Belt ofA & B Series any sizesfor AHU s as per site requiement complete all as specified and directed 44 Supply and fix in replacement of water presuure gauge 0-7 kg / cm2 including Female Stainless Steel Gauge Fittings INCLUDING ball valve 5/8, type MakeFebig or equivant suitable makes as per appx B complete all as specified and directed 45 S&F in replacement ofthermometerto condenser/chiller, inlet or outlet water pipes including addition alteration to pipe line for fixing thermometer Range 0-100 degreeF / degree centigrade complete all as specified and directed 46 Supply and fix in replacement of PVC insulated 4 Core copper Cable of size 6 Sqmm complete all as specified and directed 47 Supply and Fixing in replacement of MCCB 400 Amp 4Pole 36 KA thermal megnatic complete all as specified and directed 48 Supply and Fixing in replacement of MCCB 250 Amp 4 Pole 36 KA thermal megnatic typecomplete all as specified and directed 49 Supply and Fixing in replacement of MCCB 200 Amp 4 Pole 36 KA thermal megnatic typecomplete all as specified and directed 50 Supply and Fixing in replacement of MCCB 160 Amp 4 Pole 16 KA thermal megnatictypecomplete all as specified and directed 51 Supply and Fixing in replacement of MCB TP C63 Amp415 Volt complete all as specified and directed 52 Supply and Fixing in replacement of MCB TP C40/32 Amp 415 Volt complete all as specified and directed 53 M&L for taking out unserviceable sealed unit (compressor)type for CASSETEtype AC 3.5ton capacity , three phase, 415 volt of models as existing and replacing the same with new packaged type sealed unit (compressor) of Hitachi/Danfoss/daikin/copeland make including necessary modification of the foundation as required to suit the compressor, vacumacation, pressure , testing, leaking, rectification includinggas charging R-407/410 for achieve desire pressure and testing complete to the entire satisfaction of Engineer-in-Charge 54 M&L for replacement of Al Fan blade for out door Fan motor assembly suitable for ductable AC 5.5/8.5 ton capacityMake - Hitachi/Danfoss/Tecumesh 55 M&L for replacement ofPCB control card set complete suitable for Tower AC of any capacity 4.0 TRrequirement complete and testing the AC after the replacement of PCB as specified 56 M&L for replacement ofPCB control card set complete suitable for CASSETE AC of any capacity 4.0 TRrequirement complete and testing the AC after the replacement of PCB as specified 57 M&L for taking out unserviceable sealed unit (compressor) as existing and replacing the same with new packaged type sealed unit (compressor)12.5 ton capacity ,model-SZ185S4RC , three phase, 415 volt of modelsDanfoss make including necessary modification of the foundation as required to suit the compressor, flushing the sysytem by nitrogen gasandpressure testing for leakage and rectified (bybrazing) and after rectification vacumacation, pressuretesting,andgas charging R-407c for achieve desire pressure and testing complete to the entire satisfaction of Engineer-in-ChargeNOTE :- Gas charging requiredshall be measured and paidseparatelyas supply only. 58 Supply and fix thermometer humidity meter clock with sensor cable Temperature and Humidity Functions: With temperature range from -10 degC to +50 degC and humidity 10 % sim 99 % RH, temperature and humidity readings show directly all as per directed 59 S &F in replacement of humidistat H6000to control humidity range 15 to 80 % RH all as per specified and directed . 60 Supply and fixof cooling tower PVC honey comb fillsin colums of size 600mm x 300mm x 150mm size and min wt 600 gram of capacity 15 TR to 150 TR for the following Make : Kool Drop / MIHIR / ADVANCE / HIMGIRI per existing specification and requirement. 61 Supply and replacement of plate heat exchanger For 30 TRac plant air cooled ,including checking all leakage of the system ,cutting inlet/outlet ,welding for making necessary arrangements complete all as specified and directed by engineer -in -charge.Make : Danfoss as per existing specification and requirement.Model-B3-095-72-3.0-H 62 Supply and fix of multifunction meter voltage, ampere, power,power factor measureable accuracy class 1 for 3 phase panel including setting the parameter with CT as directed 63 M&L in replacement for duct insulation highly flexible closed cell thermal insulation of 19mm thickness of elastomeric foam based on synthetic rubber laminated with 12 micron aluminium foil fencing with reinforced glass scrim and addehessive rubber coating class BS 476 as directed by engineer in charge 64 M& L for repair for humidifier including cleaning of tank ,replacement of heater of 2KW ,painting of tank with corrosion less paint ,rewiring of electrical panel as directed by engineer in charge 65 Supply and fix in repair Y staineer filter as per existing size and make as directed 66 M&Lfor replacement of electrical strip heater ,finned type ,capacity 2 kwconsisting of stainess steel sheathing having heatresistent chrome -nickel 80/20 element protectedunder best insulation to avoid the leakage of current and with screwed type terminal at one end, 240 volts, AC, 50Hz ,single phase completeall as specified and as directed. 67 M &L for WATER JET servicing of package type AC s cap 7.5/5.5/11TR complete indoor and out door unit from existing location for servicing inner and outer filter complete with T&P and other accessories as directed. 68 Supply and Fillingin replacement of compressor oil ,polyol ester oil,410 ultra32-3MAF ,Suitable for air cooled plant make carrier recommended by manufacturercomplete all as specified and directed.Make-copeland .karrate. 69 caliberation test of ac plant for caliberating the temprature and humiduty of AHU and inside the room /store room, including checking all parameters of the plantcomplete all as specified and directed. 70 Labour only for attending fault /complaints for checking the unserviceability of ac plant by refrigeration mechanic ,rectification the fault within 24 hours ,finding out the fault , identifing gas and oil leakage and removing the same andLeak repairing by brazing/flaring andflushing the sysytem by nitrogen gasandpressure testing for leakage and rectifiedand after rectification vacumacation, pressuretesting,andgas charging as required for achieve desire pressure and testing complete to the entire satisfaction of Engineer-in-Charge NOTE :- any spare partsrequiredshall be measured and paidseparatelyas supply only. 71 M & L for servicing of water cooledreciprocating chiller unitcapacity60 TRmodel No. 5 H 60. make:voltas model no. 5 H 60 first checking of all safety controls & setting parameter, electrical panels pneumatic testing and leak testing ,before start over hauling first to do proper pump down the compressor unitand drainout the old compressor oil ,cleaning the oil chamber and replacement of defective compressor assessories andreassembling the compressor after over hauling, charging the compressor fresh oil, start & testing the compressor net oil, off load & full load testing completely up to entire satisfaction of Engineer-in-Charge.NOTE:- (i) The spare parts required for replacement shall be measured and paidseparately.(ii)All spare parts shall be of make Voltas. 72 (a) Supply and fixing Crank shaft 73 (b) Supplyand fixing shaft seal assembly 74 (c) Supplyand fixing oil seal plate 75 (d) Supply and fixing pump end bearing 76 (e) Supply and fixing seal end bearing 77 (f) Supply and fixing connecting rod bush bearing 78 (g) Supply and fixing oil pump 5H40 BRG HD 79 (h) Supply and fixing piston 80 (i) Supply and fixing piston pin 81 (j) Supply and fixing 5h connecting rod assy 82 (k) Supply and fixing NYL NUT 7/16 UNF 83 (l) Supply and fixing only Brg con rod 5h 84 (m) Supply and fixing cylinder sleeve 85 (n)Supply and fixing D V SPRING 5H40 86 (o)Supply and fixing D V lock washer (valve guide lock) 87 (P)supply and fixing oil pressure regulator valve 88 (q) Supply and fixing piston ring 89 (r) Supply and fixing suction reed valve 90 (s) Supply and fixing discharge reed valve 91 (t) Supply and fixingoil filter 92 (u) Supply and fixingthrust washer -pump end 93 (v) Supply and fixing thrust washer -seal end 94 (w) supply and fixing gasket set 95 (x)supply and fixing spring 96 (y) supplyand fixingPRSS TRMIT0-30 BAR AKS 3000(060G1081) suction/discharge/oil 97 (z) supplyand fixing and fix liquid line strainer
