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Residential Heating and Air Conditioning Blog

What Is an HVAC Sequencer?

Some of the most common questions we receive from homeowners are the ones that hone in on the more technical aspects of HVAC. We’ve covered a few in recent blogs if you’ve ever wondered what CFM means or what short cycling is. We’re proud to say that we have professionals who can answer these questions for you. If you ever need guidance we’re here to provide it. 

Today, we’d like to take a deep dive into HVAC sequencers. HVAC sequencers are small circuit units designed to stabilize circuits. They’re also able to turn switches on and off quickly in an electrical setting. Sequencers are necessary because they regulate appliances and keep devices from overheating and sometimes exploding. We’ll get into everything you need to know about these units below…

How to Identify an HVAC Sequencer

Are you wondering how you can identify an HVAC sequencer in your home? The first thing you want to do is identify this sequencer by its size and shape. Most sequencers are identifiable because they’re comprised of two separate parts that are attached together by a smaller middle piece.

You’ll also notice that sequencers are made of the same materials. It’s rare to find a sequencer that isn’t made of some tough metal. When you handle a sequencer, you’ll notice that it’s heavy. These pieces are built to be sturdy because they’re often used in things like electric pumps, furnaces, or even motors.

Features of an HVAC Sequencer

Some of the most common features of HVAC sequencers are shared across all different types of sequencers. You’ll notice that they all do the following: 

  • Have the ability to have a few seconds delay between sequences
  • Have several different mounting positions
  • Have the ability to resist shocks and vibrations
  • Have a 24-volt input control

In general, sequencers have a wide variety of features that they offer because they’re made to perform different tasks. What they’re made to do varies depending on the purpose. 

Function and Benefits of an HVAC Sequencer

The main purpose of HVAC sequencers is to provide electrical and gas-powered mechanical devices with cooling. This way these devices can always stay on so you can use them around the clock without running the risk of overheating. 

What the sequencer does is allow the pumps of something like a furnace to use a portion of its power in segments. This is beneficial because it means that there is always one part of your device on while another stays off. This means that the risk of something overheating, blowing out, or even exploding is greatly reduced. 

The best benefit of a sequencer is its ability to save you power on different pieces of equipment. Just because you use a piece of equipment often doesn’t mean that it should cost you a fortune to run. A sequencer is going to make sure that your home is always as affordable as it is comfortable. 

Contact Residential Heating and Air Conditioning for your home’s heating repair in Excelsior, MN. When you choose us you’ll “Feel the Difference.”

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