supply installation testing and commissioning of air conditioner machine to be installed in the laboratories of prof.dr. anindita ukil, department of biochemistry, c.u -r-no 718 and 738 through buy back system.for all mc. , air conditioninning sitc of 3star rating inverter split air conditioner machine with r 32 gas incl. remotecontroller of folowing capacity suitable for operation on 230v + / - 10% , 50hz, single phase ac supply with air cooled evaporatorwith copper coil fan & fan motor, air cooled condenser with copper coil, hermatically sealed rotary compressor, propeller fans, controls, control panels incl wiring, necy. power cable connection from unit to power socket, refrigerant pipe of appropriate size between indoor & outdoor unit upto 3 mtr length [ both suction& delivery, incl gas charging complete as reqd, cooling capacity4850w 1.5tr [ make: hitachi / daikin / bluestar or equivalent } 1year comprehensive warranuty &5yrs on compressor ( 28% gst on airconditioner machine only ) , providing & fixing copper pipe thickness with nitrile rubber insulation not less than 0.6 mm& suitable size as required for supply& return refrigerant with suitable insulation for above acs as per specification of manufacturer complete in all respect as required [ in excess of 3.00 mtr length / machine 1 / 4 [ od-6.35mm ] ( 18%g.s.t extra ) , supplying & laying 20mm dia isi marked pvc flexible pipe along with acce- ssories on surface of the wall to drain out condensed water from indoor unit as required. ( 18%g.s.t extra ) , s&f factory fabricatedm.s structure for resting / placing of 1.5tr capacity split a.c outdoor unit on existing bldg. & fixed by ms fastner. ( 18%g.s.t extra ) , s&f4c flexible copper cable of size 4sq.mm, from indoor to outdoor unit incl.connection, commissioning testing etc as reqd. [ polycab / havells ] ( 18%g.s.t extra ) , hire & labour charges for shuttering with centering &necy. staging upto 4mtr using approved stout props &thick hard wood planks of apprd thicknesswith reqd.bracing for concrete slab, beams & coloumns, lintels curved or straight………works ( upto roof of g / f ) when the height of a particular floor is more than 4mtr the equivalent flr height shall be taken as 4mtr 7 extra for works beyond the initial 4mtr shall beallowed under 12 ( e ) for every 4mtr or part thereof.extra for staging beyond 4mtr in any floor. ( h=12mtr, b=2mtr, l=1.5mtr ) vol=36cum ( 18%g.s.t extra ) , installation of ac machine incl all necy items, such as 19mm ply, screw, nuts etc. ( 18%g.s.t extra ) , dismantling of existing dilipated wiring with gi conduit, ceiling fan.tube lights ac machines, db etc & to be kept at the site shown by the eic. ( 18%g.s.t extra ) , less: buy back amount for three ( 3 ) nos machine ( split / window ) .