tender for supply, installation, testing and commissioning of air conditioner machines 100% copper with remote controller for the lab [ 729] of prof sanjoy ghosh ,dept of biochemistry & prof annual repair banerjee [412] & prodf d.mondal[425] of dept of anthropology with all related works, under university of calcutta [buy back of 2 a.c machines]. , supply installation testing and commissioning of 3 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 ; 1.5trhitachi,daikin,blue star,voltas or equivalent , 2tr split inverter type 60 months warranity,fast cool make same as above , 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 marked flexiblepvc pipe along with accessories on surface of the wall to drain out condensate water from indoor unit 5 to10mm thickness 3 dia.3 thickness 5-10 mm , s and f factory fabricated ms structure for placing the 1.5tr capacity split outdoor unit on 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 , less buy back for 2 nos machine @ rs for each machine [-]