bids are invited for sitc of two sets of 2x11 ton air cooled packaged air conditioning plants at air port blair supply of packaged type air conditioning plants of capacity 11 tons each , plenum chambers , return air chambers , electrical work , dismantling of old ac plants and plenum chamber , civil works provision of foundation blocks and vibration isolation , repair of existing false ceiling , fresh air window and stale air opening , heat insulation treatment in ac plant room , platform for outdoor condenser unit , miscellaneous civil works , heavy duty flooring , erection, commissioning and testing of the plant at site , provision of indicators for filter clogging and condenser clogging , supply of accessories total quantity : 199