Tender For Major Repairs And Servicing To 44 Tr Capacity Air Cooled Chiller Plant Ii For Summer Season Installed At Library Auditorium Of Gmc Jammu., Jammu-Jammu And Kashmir
TDR : 37665849
Tender Notice
Corrigendum Details
BOQ
Expired
Jammu
Jammu And Kashmir
Corrigendum : Tender For Major Repairs And Servicing To 44 Tr Capacity Air Cooled Chiller Plant Ii For Summer Season Installed At Library Auditorium Of Gmc Jammu.
MAJOR REPAIRS AND SERVICING TO 44 TR CAPACITY AIR COOLED CHILLER PLANT-II (FOR SUMMER SEASON) INSTALLED AT LIBRARY/AUDITORIUM OF GMC JAMMU.
Sl. No.
Item Description
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A) Major repairs and servicing to 44 TR capacity Air Cooled Chiller Air Conditioning Plant-II Voltas make installed at library/auditorium of GMC Jammu by way of disconnecting all the electrical connections from the main panel and dismantling the 02No condenser motors from the frame and shifting to workshop, then complete rewinding with proper copper conductor, replacing of worn out/damaged fan motor shaft and making it to the required size on Lathe machine and P/F of bushes and bearings in place of damaged ones and refitting at site. Job includes repairs to the condenser coil by way of providing & fitting of hard copper pipes of OD 41.275 mm-15ft (aprox.), copper fittings (L elbo, T bends, U bends, socket)-25Nos each(approx.), expansion valve-01Nos, HP/LP switch-04Nos, compressor flange-04Nos, Drier core-04Nos, Drier assembly-02Nos, Bi-directional flow ball valve of OD 41.275mm-04Nos in place of stolen ones. Job includes copper brazing of the copper pipes and related fittings to condenser circuits-02Nos. Then job includes leak detection testing by filling nitrogen gas in the two circuit line at a pressure of 1.5 times the operating pressure for 24 hrs, rectification of leakages with proper soldering & brazing. The entire system is to be first tested at low pressure to make sure that there are no leaks then high pressure is to be applied to the high side only and system is tested for leaks. Further the leak testing is done using smearing soap solution over joints and pipes and observing for bubble formation. This pressure testing is to be repeated until there are no more leaks. Then line is to be vacuumised for removing of air and moisture from the system then charging the compressors-04Nos and condenser circuit-02Nos with refrigerant (R-22)-55kg (approx.). Job includes replacement of damaged wiring of control panel of chiller plant with new one as per site requirement and thimbles and crimping them with the help of crimping tool & proper insulation. Opening of the corroded contactors and proper cleaning/servicing using corrosion inhibitor and refitting.Job includes testing and calibration of motherboard controller for accurate monitoring & controlling of plant parameters. Complete servicing and cleaning of condenser coils-02Nos by spraying chemical cleaner over the condenser coil surface using jet cleaner pump for at least 30 minutes and then spraying the coil with fresh water till the foam goes away or till the chemical is washed off and the cleaning process is repeated till the fins and cooling coil are totally cleaned. Testing the chiller AC plant on no load & full load.Complete job in all respects including cost of material, handling, skilled labour charges, carriage, taxes and allied works upto testing
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B).Provision for Supply, installation, testing and commission of Scroll Compressor of 12 TR capacity.Complete job in all respects including cost of material, handling, skilled labour charges, carriage, taxes and allied works upto testing
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