The theoretical study on the condition based preventive maintenance of air conditioning systems was previously reported in this journal No.430. In this paper, the basic characteristics of the condition based preventive maintenance of air conditioning systems is analized using the sensitive analysis method. A comparison from the stand point of the effect on reliability improvement and the economy between the condition based preventive maintenance through the intermittent inspections and the redundancy design of air conditioning systems is also presented. A Comparison between the condition based preventive maintenance through continuous inspections using an automated system and the redundancy design is additionally discussed.
