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"Do you have a list of building automation abbreviations" is a common request we get here at Smart Buildings Academy.

This guide will continue to grow every week as we add more and more definitions to the guide. If you have a suggestion for an acronym please post it in the comments. Please be aware this list is a work in progress.

[Last Updated 12-29-20

A

Actuator-

A control device that enables the building automation controller to change the state of dampers and valves by converting electrical energy into torque (usually measured in foot lbs). Actuators accept control signals from the building automation controller and power from transformers.

AHU- Air Handling Unit

Airflow

Amperage

Amperage, also known as current, is the measurement of the flow electricity across a wire. Current is calculated by volts / resistance. Essentially as the resistance increases you will get more current. Current produces heat (which on a side note is how electric heating works). Also, we use current for long distance control signals because it is not as affected by distance and interference.

B

BACnet

Boiler

British Thermal Unit (BTU)

Building Automation System (BAS)

C

Chiller

Condensate

Condenser

D

Database

Decoupler

Delta T

Dehumidification

Discharge Air

E

Electricity

Exhaust Air

Exhaust Fan

F

Fan Coil Unit

Fan Wall

Filter

Freezestat

G

Graphical Unit Interface (GUI)

H

Hot Water System

I

Interface

J

K

L

LON

M

Modbus

N

O

P

Protocol

Pump

Q

R

Resistance

Resistor

Return Air

Relief Fan

S

Static Pressure

Supply Fan

T

Temperature

Thermostat

Thermistor

U

V

Variable Frequency Drive

Variable Speed Drive

W

X

Y

Z

 

Phil Zito

Written by Phil Zito

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