Repair And Comprehensive Restoration Of Existing Inverter Type Split Air Conditioning Units At Ncdc Office At Guwahati, Assam. (Sh: Replacement Of Defective Indoor Unit Pcb, Inverter Compressor, Refrigerant Copper Piping With Insulation, Communication Cable, Nitrogen Flushing, Leak Testing, Refrigerant Charging And Preventive Servicing) Subwork/Packages:Replacement Of Defective Indoor Unit Pcb Inverter Compressor Refrigerant Copper Piping With Insulation Communication Cable Nitrogen Flushing Leak Testing Refrgerant Charging And Preventive Servicing