supply installation testing commissioning of ac machines to be installed at prof a.k sharma teachers enclave at department of botany, 2nd floor of ballygunge science college, 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. make ; hitachi, daikin, blue star, voltas or equivalent , 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. , 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, commissioning 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 existimg electrical installation, a.c machine etc as per wb govr labour rate.