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 barak missile store 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