Abstract
From the perspective of facility life cycle management, timely renewal and appropriate maintenance are important to minimizing life cycle cost and environmental loads. To determine whether a system should be renewed or the components replaced or repaired, we need to assess the condition and residual life of the items. This paper proposes a method for selecting the optimal treatment from among the following options: doing nothing, component replacement, and system renewal. This method takes into consideration the facility conditions and operation status identified through monitoring data, as well as the operation and maintenance history. The method was verified by application to the multi-split-type air-conditioning system of a commercial building.
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