Operating Instructions

Siemens Building Technologies, Inc. Glossary-1
Glossary
Overview
The glossary contains terms and acronyms that are used in this manual. For definitions of
point database descriptors, see Chapter 4—Point Database in this manual. For definitions of
commonly used terms as well as acronyms and abbreviations associated with the APOGEE
Automation System, see the Technical Glossary of Building Controls Terminology and
Acronyms (125-2185). This book is available from your local Siemens Building Technologies,
Inc., representative.
Al
Analog Input. Physical point that accepts a continuously variable signal. For example, flow
rate sensors (water or air), temperature sensors (room or duct), pressure sensors (static or
velocity), and humidity sensors (room, duct, or outdoor).
algorithm
Mathematical formula used to calculate an output value using varying inputs.
Autozero Module
Terminal Equipment Controller device used to calibrate the controller's internal air velocity
transducer without changing the volume of air being delivered to a space.
AVS
Air Velocity Sensor.
BST
Basic sanity test.
centralized control
Type of control offered by a controller that is connected, by means of a Floor Level Network
(FLN), with a field panel.