tender for supply, installation, testing and commissioning of 2.0 ton split (3 star and 100 percent copper) inverter ac machine at ro section, 1st floor, darbhanga building, college street c us, university of calcutta. , supply of voltas/ carrier / daikin or equivalent machine 2.0 ton 3 star inverter 100% cu split ac machine including 10 feet cu insulation pipe & drain pipe (length required as per site condition & approved by the site incharge) , installation & commissioning of the above split ac machine , extra pipe-supply and laying of standard pair (suction and liquid) copper refrigerant piping for unit connection, with1/2 inch thick extruded closed-cell nitrile rubber insulation including necessary clamp if necessary , extra pipe-supply and laying of heavy-duty upvc/pvc drain piping with proper slope