What are HVAC controls?

May 09,2022

The definition of HVAC control systems can range depending on whether it is applied to a very basic residential application or potentially to an extremely complex large-scale application, but in short, HVAC controls consist of devices that control the operations of Heating, Ventilation, and Air Conditioning equipment.

In residences, you’ll typically find a thermostat that is connected to some kind of self-contained A/C unit. By adjusting the temperature (or setpoint), you are controlling the functions of that self-contained unit. For example:


When you set your thermostat to 75 degrees in the summer, you are dictating that your A/C unit should run until your indoor temperature reaches 75 degrees, at which point, it should shut off.


In this simple example, your HVAC thermostat is considered an HVAC controller, however, it is also a sensor because it is sensing your indoor temperature. We’ll talk more about sensors as we delve deeper into more complex systems.


When it comes to applying HVAC control systems to larger facilities, the HVAC controls are sometimes a part of a larger system known as a building automation or energy management system.

Latest News
HVAC systems. HVAC systems are classified as either self-contained unit packages or as central systems
Oct 24,2025
Replacing a Water Heater Thermostat in 8 Steps
Oct 24,2025
What's 24 volt thermostats
Oct 24,2025
6 Best Boiler Thermostats – Smart, WiFi Thermostats For Boilers
Oct 24,2025
The Best Thermostat for Electric Floor Heating Systems
Sep 09,2025
Saswell Sprinkler Timers for Hoses
Dec 12,2023
Best WiFi garden hose timers
Dec 12,2023
What is a Fan Coil Thermostat?
Aug 07,2023
Installing a Thermostat in Your Home
Mar 12,2023
What’s Does a Smart Thermostat Do?
Nov 28,2022
Setting Your Thermostat for (Energy) Savings in Winter
Nov 24,2022
Absorption Heat Pumps
Aug 11,2022
How to Troubleshoot a Defective Thermostat on An Electric Water Heater
Feb 14,2022
How To Replace A Faulty Thermostat On An Electric Water Heater
Jan 17,2022
How To Test Water Heater Thermostat
Jan 17,2022
7 Steps To Test Water Heater Thermostat
Jan 07,2022
How do I find a Thermostat in my water heater?
Dec 30,2021
LinkTap G2 switch
Dec 21,2021
What is a smart thermostat?
Oct 28,2021
The Best Smart Thermostat
Oct 21,2021
The Best Sprinkler Timers and Controllers for Your Lawn and Garden-Flora
Aug 02,2021
Smart Irrigation Controllers Save Water and Money
Jul 21,2021
Smart irrigation controllers have Difference Between Weather-Based and Soil Moisture Sensors
Jul 21,2021
Best Wifi Water Timer
Jul 05,2021
Best smart sprinkler controller
Jun 28,2021
Remote sensors vs. Remote control thermostats
Dec 04,2020
Which End of the Radiator To Fit the TRV
Oct 30,2020
Changing an Old for a New TRV or Changing a Lockshield Valve for a Thermostatic Radiator Valve
Oct 30,2020
Common Problems with TRVs and Maintaining Thermostatic Radiator Valves
Oct 10,2020
One Radiator Not Getting Hot
Sep 18,2020
The Benefits and the Disadvantages of Having TRV's Fitted
Sep 05,2020
What Is a TRV or Thermostatic Radiator Valve?
Sep 05,2020
Bathrooms: A TRV No-No
Aug 17,2020
How to Unstick a Thermostatic Radiator Valve?
Aug 04,2020
What's Two wire thermostats and Millivolt thermostats?
May 14,2020
CONTACT US
If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!
Rapid customization
7 product platforms enable the 7-day customization.
Join to win a Free Sample!
Subscribe to our emails
Never miss saswell hot deals,news,and updates tailored for you.