tender for improvement of ac systems in aerobridge fixed fingers at t1 & t4 terminal at chennai airport. ; 1 dismantling of existing chilled watertype 4-way cassette fcu from the false ceiling, including removal of insulation, cutting of pipelines, etc. complete as required, shifting to designated location andhanding over to aai stores. 2 supply of 3 tr ceiling mounted chilled water4 way cassette type fan coil unit with copper cooling coils and all accessories such as two-way control valve, actuator, cable, ball valves, strainer, aux. drain tray, copper pipe, insulation, unions, washers, wireless remote control, air filters, fan section, 3 speed motor, drain pump with float switch etc. complete as required and as per particular specifications. 3 installation, testing and commissioning of 3 tr ceiling mounted chilled water4 way cassette type fan coil unitin false ceiling including all necessary modifications to pipelines if any such as cutting, welding etc. and insulation of the same afterwards with nitrile rubber of suitable thickness, providing electrical connections using existing power cable to match the new unit and making terminations etc. complete as required. 4 note: to arrive at the l-1 bidder, comparison of rates without gst shall be considered.