supply installation testing and commissioning of ac machines in visitor room of west bengal minority commission, with necessary electrical works at khadya bhawan, ground floor, block-a, kolkata-87- 1 supply, installation, testing & commissioning ofsplit type ac machines having capacity cooling capacity range ( 5.2- 5.3 kw ) , with fixed speed rotary compressor, refrigerant gas r32 / r410 bee star rating -3 ( eer range 3.5 to 3.99 ) , air-flow range cfm ( 560-600 ) 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 electric / o-general / hitachi / daikin / voltas / bluestar / carrier ) 2 sitc inciuding vaccumiazation and nitrogen of testing of following nominal size of soft / hard drawn copper refrigerent piping|forpackage / vrv / vrf / rac systcm, complete with fttings, with adjustable ring type hanger supports, jointing / btazing inchuding acccssories, insulated with xlpe class -0 tubular insulatibn / with class-o closed cell elastonctric nitrilerubber tubular sleevessections of specified thickness as given helow for suction and liquid lines all accessorics as per specification etc. as required .5 / 8 ( 15.88mm ) dia ( soft drawn ) cu. pipes ( as per standard bs864 or ansib 16.22 ) mm incl. 19mm thick insulation 3 1 / 4 ( 6.4 mm ) dia ( soft drawn ) cu. pipes ( as per standard bs864 or ansib 16.22 ) mm incl. 19mm thick insulation 4 supply & laying pvc drain pipe 25mm dia with 6mm thick nitrile rubber insulation ( make- supreme / oriplast ) 5 supply and laying of 1.1kv grade copper armoured round cable of the following sizes from idu to odu for above mentioned ac machines ( make polycab / havells / gloster / finolex ) 3 core 2.5 sqmm 6 supply & fixing 25 amps. single pole contractor l&t make, type mr11nw, cat no. c594178 fitting after opening the split type air conditioners outdoor units top cover, making perfect base for install the contractor inside outdoor unit with necessary materials, refitting the top cover. 7 supply & fixing 240 v, 25 a, 3 pin modular type plugsocket ( brand approved by eic ) , without plug top andswitch with 2 module gi modular type switch board withtop cover plate flushed in wall and making necy.connections with pvc cu wire and earth continuity wireetc. 8 supply & fixing 240v 25a 3 pin modular type plug top with indicator ( brand approved by eic ) & necy. connections. 9 supply and fixing olp-3+, 21 amp a.c. machine starteron 4 modulegi box as required including connections and connected in wall as to gs ( make - electron ) 10 supplying and drawing 1.1 kv single core stranded fr pvc insulated & unsheathed single core stranded copper wire ( brand approved by eic ) of the following sizes in the prelaid polythene pipe and by the prelaid gi fish wire and making necy. connection as required2x56 / 0.3 ( 4sqmm ) + 1x 36 / 0.3 ( 2.5 sqmm ) ecc 11 supplying and fixing pvc rigid conduit fr [ precision make ] on wall, ceiling with saddles and other accessories as required and mending good damages to building works--20mm size2x4 sqmm +1x2.5 sqmm 12 25mm size 13 finishing of the pvc insulated wire ends by socketting with pin / ring type copper sockets and insulated tapes etc., including supplying sockets, tapes.2.5 sqmm 14 4sqmm