ABSTRACT
This chapter refers to the term rooftop unit zoning (RTZ) system. RTZ systems are a decent, relatively inexpensive means of providing multiple zoning to a space served by a single piece of packaged heating and air conditioning equipment. RTZ systems are microprocessor-based, typically supervised by a single “smart” controller. RTZ system zones are networked together, and back to the controller. The system controller is the brains behind the operation. This is typically a microprocessor-based controller equipped with all of the capabilities required to supervise and implement the operation of an RTZ system. Zone dampers are nothing more than motorized butterfly dampers with controllers. Zone sensors reside in the zones served by the zone dampers.
