purchase of air cooled ductable unit ( 39 tons ) complete , air cooled ductable unit ( 39 . 0 tons ) complete with scroll compressor control panel refrigerant piping to interconnect indoor and outddor unit along with cabling etc , 11 . 0 ton ceiling concealed high static ductable unit with cooling refrigerant r-410a , 08 . 5 ton ceiling concealed high static ductable unit with cooling refrigerant r-410a , complete installation of air cooled ductable unit gi sheet ducting at least 0 . 63 and 0 . 80mm , thermal insulation of ducts with at least 09mm thick nitrile rubber , refrigerant piping between indoor to outdoor unit 15 . 88 - 34 . 92mm od ( insulation 09mm ) , 5/8inch - 13/8inch , control cable to interconnect indoor unit outdoor unit , providing and fixing drain piping of at least 32mm thick pvc pipe , convass connection , grills and diffusers , fixing outdoor units