cmc of package type air conditioning units under pune ssa , comprehensive maintenance of air-conditioning units ( with out 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 condition . , i ) package type ac unit - 5 . 0 tr , a ) 1st year , b ) 2nd year , ii ) package type ac unit - 7 . 0 tr , a ) 1st year , b ) 2nd year , note: for item nos . 1 . i ) to ii ) the agency shall maintain the defect free services & shall submit report while raising the due payments .