Building Automation - Answers Is the control of the energy - and resource - using devices in a building
for the optimization of building system operations.
Pneumatic Control System - Answers A control system in which compressed air is the medium for
sharing control information and powering actuators.
Direct Digital Control System - Answers Is a control system in which electrical signals are used to
measure and control system parameters.
Building Automation System - Answers Is a system that uses a distributed system of microprocessor-
based controllers to automate any combination of building systems.
Consulting-specifying engineer - Answers Is a building automation professional that designs the building
automation system from the owners list of desired features.
Authority Having Jurisdiction (AHJ) - Answers Is the organization, office, or individual who is responsible
for approving the equipment and materials used for building automation installation.
Contract Specification - Answers Is a document describing the desired performance of the purchased
components and means and methods of installation.
ContractDocument - Answers Is a set of documents produced by the consulting-specifying engineer for
use by a contractor to bid a project.
Shop Drawing - Answers A document produced by the controls contractor with the details necessary for
the installation.
Project Close Out Information - Answers A set of documents produced by the controls contractor
Control Device - Answers A building automation device for monitoring or changing system variables,
making control decisions, or interfacing with other types o systems.
Variable - Answers Some changing characteristic in a system.
Sensor - Answers A device that measures the value of a variable and transmits a signal that conveys this
information.
Controller - Answers A device that makes decisions to change some aspect of a system based on sensor
information and internal programming.
Actuator - Answers Is a device that accepts a control signal and causes a mechanical motion.
Relay - Answers An electrical switch that is actuated by a separate electrical circuit.
Solenoid - Answers A device that converts electrical energy into a linear mechanical force.