Repair/Maintenance of central type AC plant at Naval Dockyard Visakhapatnam

Amount

Repairs, overhauling and servicing of JS84 of make ‘YORK’ (Semi Sealed) 100TR, AC Plant compressor by stripping out both end covers, cylinder head, cylinders, connecting rod, crank shaft, oil pump, side covers, bush bearings etc.,and refrigerant taking the cylinder for reuse (if available) of unserviceable worn out parts in the compressor, cleaning the system with CO2 / Nitrogen gas for leak detection for minimum 24 Hrs, after flushing out the system, vacuumization and charging with refrigerant gas & compressor oil and testing the unit on no load and full load conditions complete all as specified and as directed. Note:- Supply only refrigerant gas, compressor oil and spare parts for the compressors will be measured and paid seperaterly.

All as per item No 1.00 above but for JS64 of make ‘YORK’ (Semi Sealed) 75TR

Supply only 'Seal O ring' suitable for JS84 ‘York (Semi Sealed)’ make compressor No 01 complete all as specified and directed

All as per item No 3.00 above but for Bearing Crank shaft

All as per item No 3.00 above but for Washer Thrust

All as per item No 3.00 above but for Pin Piston

All as per item No 3.00 above but for Sleeve Cylinder

All as per item No 3.00 above but for Gasket Head Top, Hhc

All as per item No 3.00 above but for Gasket Brg. Hd to Hsg

All as per item No 3.00 above but for Gasket Manifold

All as per item No 3.00 above but for Gasket Term Block

All as per item No 3.00 above but for Gasket Term Bolt

All as per item No 3.00 above but for Plate Valve Suction

All as per item No 3.00 above but for Valve, suction Reed

All as per item No 3.00 above but for Valve, Discharge Reed

All as per item No 3.00 above but for Cage, Valve Discharge

All as per item No 3.00 above but for Piston

All as per item No 3.00 above but for Gasket 3 1/2 Cap Val

All as per item No 3.00 above but for Gasket Cap 3

All as per item No 3.00 above but for Gasket Motor cover

All as per item No 3.00 above but for Gasket Oil Pump

All as per item No 3.00 above but for Rod connecting Long

All as per item No 3.00 above but for Spring Retainer circlip

All as per item No 3.00 above but for Spring helical Discharge

All as per item No 3.00 above but for Spring Helical pin Lift

All as per item No 3.00 above but for Spring Helical suction

All as per item No 3.00 above but for Ring Piston

All as per item No 3.00 above but for Crankcase heater

All as per item No 3.00 above but for Screen Suction

Supply only 'Seal O ring' suitable for JS84 ‘York (Semi Sealed)’ make compressor No. 02: complete all as specified and directed

All as per item No 30.00 above but for Bearing Crank shaft

All as per item No 30.00 above but for Washer Thrust

All as per item No 30.00 above but for Pin Piston

All as per item No 3.00 above but for Sleeve Cylinder

All as per item No 3.00 above but for Gasket Head Top, Hhc

All as per item No 30.00 above but for Gasket Brg. Hd to Hsg

All as per item No 30.00 above but for Gasket Manifold

All as per item No 30.00 above but for Gasket Term Block

All as per item No 30.00 above but for Gasket Term Bolt

All as per item No 30.00 above but for Plate Valve Suction

All as per item No 30.00 above but for Valve, suction Reed

All as per item No 30.00 above but for Valve, Discharge Reed

All as per item No 30.00 above but for Cage, Valve Discharge

All as per item No 30.00 above but for Piston

All as per item No 30.00 above but for Gasket 3 1/2 Cap Val

All as per item No 30.00 above but for Gasket Cap 3

All as per item No 30.00 above but for Gasket Motor cover

All as per item No 30.00 above but for Gasket Oil Pump

All as per item No 30.00 above but for Rod connecting Long

All as per item No 30.00 above but for Spring Retainer circlip

All as per item No 30.00 above but for Spring helical Discharge

All as per item No 30.00 above but for Spring Helical pin Lift

All as per item No 30.00 above but for Spring Helical suction

All as per item No 30.00 above but for Ring Piston

All as per item No 30.00 above but for Crankcase heater

All as per item No 30.00 above but for Screen Suction

Supply only R-22 gas complete all as specified and as directed. Make:- Refron 22/Floron 22/Mafron 22

Supply only York compressor oil complete all as specified and as directed. Make:- York

Material and labour for disconnecting, taking out the compressor of 100 TR capacity from the bed, tranportation to workshop and removing the existing stator winding and rewinding with new super enameled copper wire of same gauge and same number of turns after thorough cleaning of stator body and rotor applying insulating varnish, drying up by heating for improving ohmic valve, reassembling the motor by replacement of bearings, including painting with one coat of synthetic enamel paint, reinstalling on its original position connecting up, testing complete all as specified and as directed

Material and labour for descaling the 75 to 100 TR condensers by using HCL acid with continuous circulation method using circulation pump, finally neutralizing with fresh water, opening both end covers of shell and tube condensers, cleaning of copper tubes manually by using nylon brushes, re-fixing the end covers with new neoprene rubber gaskets, commissioning after complete performance test of the system complete all as specified and as directed.

Material and labour for checking the complete refrigeration system of the AC plant, leak testing with CO-2 gas under constant pressure of 250 PSI after complete transfer of refrigerant gas from the entire system, rectification of leakages including cutting and brazing the refrigeration pipes wherever required, replacement of "O" rings, teflon washers of valves, copper tubing, flare nuts etc., neutralizing after the pressure hold good for at least 24 hours vacuumization of system, testing and commissioning of 75 - 100 TR air conditioning plants complete all as specified and as directed

Material and labour for taking out the defective/ unserviceable suction/discharge/oil pressure gauges of Low pressure gauge (0 to 150 PSI), AC compressors of ‘YorK’ makes and supply & fix new pressure gauges of existing types (2"/4" dia), re-connecting the pressure lines complete all as specified and as directed.

All as per item No 62.00 above but for High pressure gauge (0 to 300 PSI)

All as per item No 62.00 above but for Oil pressure gauge (0 to 200 PSI)

All as per item No 62.00 above but for Water pressure gauge (0 to 7 Kg./Cm2 Make for item Nos. 62 to 65 :-Air Master/ Febig/ Scientific/Monometer.

Supply and fix MCCBs of 320 Amps, 3 pole, 36 KA, AC supply 50 Hz, 415 V complete all as specified and as directed. Make : Indo Asian / Havells/L&T

Supply and fix MCCBs of 250 Amps, 3 pole, 35 KA, AC supply 50 Hz, 415 V complete all as specified and as directed Make : Indo Asian / Havells/L&T

Supply and fix VVE-70 model expansion valve of Sporlon make with necessary modification, brazing ,leak testing and commissioning including taking out the old unserviceable expansion valve complete all as specified and as directed.

All as per item No 68.00 above but for VVE-52 model

SRI SIDDHI VINAYAKA ENTERPRISES

pavantejaklimmaat enterprises