supply & installation of air-conditioning system for renovation of the office space of pe& ir departmentat 2nd floor of shilpa sadan, 4,camac street, kolkata. supply and installation of air-conditioning system for renovation of the office space of pe and ir department at 2nd floor of shilpa sadan, 4, camac street, kolkata. , supply, installation,testing & commissioning of3 tr. split type ac machines having capacity cooling capacity of 10.58 kw), with fixed speed rotary compressor, refrigerant gas r410a, bee star rating -3 (eer range 3.37), air-flow range cfm(959) both condenser and cooling coils made of copper tube connecting chordwith plug topconfirming to isi 1391 (part-i & part-ii) with all amendments.(make: mitsubishi heavy / o-general / daikin) , installation of both indoor & outdoor units of above split a.c. incl. supply & fixing of suitable frame & mending good the damages. , sitc inciuding vaccumiazation and nitrogen of testing of following nominal size of soft / hard drawn copper refrigerent piping for package / vrv / vrf / rac systcm, complete with fttings, with adjustable ring type hanger supports, jointing / brazing inchuding acccssories, insulated with xlpe class-0 tubular insulation / with class-o closed cell elastonctric nitrilerubber tubular sleeves sections of specified thickness as given helow for suction and liquid lines all accessorics as per specification etc. as required. , (i) 5/8 (15.88mm) dia (soft drawn) cu. pipes (as per standard bs864 or ansib 16.22) incl. 9mm thick insulation. , (ii) 3/8 (9.52 mm)dia (soft drawn) cu. pipes (as per standard bs864 or ansib 16.22) incl. 9mm thick insulation. , supply & drawing 1.1 kv grade, 4 core, 2.5 sq mm unarmoured pvc insulated frls copper cable (make: finolex / polycab / havells / kei) , supply & laying 19 mm dia drain water piping work out of pvc incl. fitting with accessories as per direction of e.i.c