Supplies a detailed list of troubleshooting procedures for HVAC systems and plant, compiled from a number of different sources. Writes for maintenance personnel attempting to solve problems with specific items of plant. Each item of plant has a series of 'symptoms' which describe different problems. 'Possible causes' are given for each symptom together with appropriate 'actions' to follow. 

Covers heating systems, cooling systems, air handling stems, terminal units and plant common to different systems.