comprehensive maintenance contract of 15 tr high precision air-conditioning units ( m / s emerson make ) at 2nd floor, msc, te bhavani peth, pune. ( revised ) , comprehensive maintenance of precision package air-conditioning units ( without operation ) as per details given in relevant sections by deploying the required specialized manpower as & when required by arranging required tools and plant etc . to carry out maintenance activities and attend all break down maintenance calls . contractors to take all steps to undertake preventive / special maintenance and testing to keep the system at optimum working a ) services included are: section- i , 15 tr high precision ac units of m / s emerson make