The purpose of this reference, training manual is to provide an overview of building systems for both operators and administrators. It is presented in easily understood layman terms. It is intended that this manual can be used as a training tool and as a reference source for building operators, operations managers, property managers and tenant service personnel. The manual has been divided into sections, with each section covering a particular portion of the mechanical systems. Each section outlines in general the characteristics of operation of the equipment. Comments regarding the interaction of components and systems, and their purpose for being provided as part of the building mechancial equipment package are included. It is respectfully requested that this manual not be copied by any means without permission in writing from T.D. Air Balance Service.