supply installation testing and commissioning of air conditioner machine split type 100 percent copper 1.5tr,inverter type with remote controller to be installed in the laboratory of dr.sudipta roy of dept.of botany and dr.sujoy ghosh dept of zoology with all allied works, c.u. , sitc of3 star rating split air cinditioner machine with r32 gas including remote controller of following capacity suitable for operation on 230v +/- 10% volt,50hz single phase ac supply with air cooled evaporator with copper coil,fan and fan motor.air cooled copper condenser, hermetically sealed copper compressor,propeller fan control panels incl wirings,necy power cable connections from unit to power socket,refrigerant pipe of appropriate size between indoor and outdoor unit upto 3 mtr length. both suction & delivery incl. gas charging,complete as required make ;necy ply wood board of 19 mm to be fixed for installation of the machine,duly painting as per wall colour.hitachi,daikin,blue star,voltas or equivalent1..5tr [5nos fordr.sujoy ghosh &4nos fordrsudipta roy]] , providing and fixing copper pipe with nitrile rubber insulation not less than 0.6mm thickness suitable size required for suction and return refrigerant with suitable insulation for above ac s complete in all aspects as required in excess of 3mtrs / machine , supply and laying 20mm dia isi markedflexiblepvc pipe along with accessories on surface of the wall to drain out condensate water from indoor unit5 to10mm thickness 3 dia.3 thickness 5-10 mm , s and f factoryfabricated ms structure for placing the 1.5tr capacity split outdoor uniton existing building. by ms fastner , s andf 4c flexib;e copper cable of 4sq.mm from indoor to outdoor unit incl.connection,commissioing testing etc as reqd , hire and labour charges for shuttering and centering and necy.staging upto 4mtr using approved stout props thick wood hard planks of approved thickness,,,,upto roof of ground floor.when thefloor of a particular floor is more than4mtr the equivalent floor height shall be taken 4 mtrs and extra for works beyond the initial 4mtrs shall be allowed under 12e.....beyond 4mtr in any floor h= 12mtr b=2mtr l=1.5mtr =36cum , dismantling the existing ac machines as per wb govt labour rate)