bids are invited for consultancy services for design of central air conditioning plant and bills of quantities to special repairs for replacement of ac plants at uran missile ( bldg no p-334 ) at nad, visakhapatnam - ( a ) design and submit the central air conditioning system as per ishrae standard ( b ) determine ahu capacity and air qty for ac requirement as per existing ahu. ( c ) determine the size and capacity of chilled and condenser water pumps layout as applicable. ( d ) determine piping for ac requirement and drawing submission. ( e ) submit the boq for central air conditioning system including specifications for the equipment. ( f ) preparing and submission of schematic drawings total quantity : 1