cmc of 3x 270tr central ac plant including all associates equipments at ats complex , sr region , chennai airport , comprehensive maintenance contract for central airconditioning system at ats/ chennai airport , job including manpower for attending to complaints , repairs /rectification action , supply & replacement of required spares / accessories/parts consumables , rewinding works , servicing & overhauls , periodic inspections , schedule / preventive / breakdown maintenance as per detailed specifications , terms & conditions and scope of work covered under this contract . , ist year ( high side + low side equipments ) , 2nd year ( high side + low side equipments ) , 3rd year ( high side + low side equipments )