title: Diagnosis of the technical state of heat systems
abstract: A step-by-step approach to the diagnosis of the technical state of heat systems is stated. The class of physical defects is supplemented by the behavioral defects of objects, which are related to the disturbance of the modes of their operation. The implementation of the approach is illustrated by an example of the solution of a specific problem of the diagnosis of a closed heat consumption system
keyphrases: heat system technical state diagnosis step-by-step diagnosis operational mode disturbance closed heat consumption system diagnosis