bids are invited for variable refrigerant volume variable refrigerant flow air conditioning machines vrf or vrv air cooled outdoor units suitable for cooling or heating having 100 percent hermetically sealed inverter type twin rotary or scroll compressor capacity of machines 14 hp to 22 hp , following minimum capacity 4 way vrv or vrf cassette type indoor ceiling mounted unit equipped with synthetic washable media pre filter,3 point 2 tr , following minimum capacity 4 way vrv or vrf cassette type indoor ceiling mounted unit equipped with synthetic washable media pre filter,4 tr , vaccumiazation and nitrogen testing of following nominal sizes of soft or hard drawn copper refrigerant piping for vrv or vrf system, thickness 1 point 2 mm , 9 point 5 mm dia od soft drawn with tube thickness 1 point 2 mm , 12point 7 mm dia od soft drawn with tube thickness 1point 2 mm , 15 point 86 mm dia od soft drawn with tube thickness 1point 2 mm , 19 mm dia od hard drawn with tube thickness 1 point 2 mm , 22 point 2 mm dia od hard drawn with tube thickness 1 point 2 mm , 25 point 4 mm dia od hard drawn with tube thickness 1 point 2 mm , 28 point 58 mm dia od hard drawn with tube thickness 1 point 2 mm , 34 point 9 mm dia od hard drawn with tube thickness 1 point 62 mm , 41 point 27 mm dia od hard drawn with tube thickness 1 point 62 mm , s i t c of y joints kit refrnet , drain piping rigid pvc piping complete with fittings supports as per specifications and insulated with 6mm thick closed cell elastometric nitrile rubber insulation 25mm dia and , 32 mm dia , 40mm dia , control and transmission wiring , testing and commissioning of vrf or vrv systems including topping of r410a gas as per site requirements , supply and installation of u or v protection of used copper pipe at outer site for odu connection site , 6way load bank double door enclosure confirming to is 8623 iec 60439 g frame panel boards , supplying and fixing of following sizes of medium class pvc conduit along with accessories 25mm , frlsh or hffr pvc insulated copper conductor single core cable in the existing surface or recessed steel or pvc conduit as required 3 x 1 point 5 sq mm , suitable size gi box with modular plate and cover in front on surface or in recess , one number xlpe insulated and pvc sheathed copper conductor armoured power cable of 1 point 1 kv grade 4 x 16 sqmm , 16 a rating 240 by 415 v 10 ka c curve miniature circuit breaker suitable for nductive load of following poles in the existing mcb db complete with connections single pole , single pole and neutral sheet steel mcb distribution board 240 v on surface by recess complete 12 way double door , supplying and fixing 25 a rating single pole and neutral , following size of perforated painted with powder coating m s cable trays 150 mm width x 50 mm depth x 1point 6 mm thickness , earthing with g i earth pipe 4 point 5 metre long 40 mm dia including accessories , providing and laying earth connection from earth electrode , providing and fixing 6 swg dia g i wire on surface or in recess for loop earthing , amc as per section c , installation of cassette ac 2 ton 5 star , copper pipe , 4 core copper wire , drain pipe with insulation , odu stand , cable tray , hanging rod , faster nut , wrapping tape , 3 core copper wire total quantity : 7210