Commercial HVAC Maintenance Glossary

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Keeping everything in check inside our home is a challenging task for most of us.

There is a need to consider many things such as the overall style of the space and the condition of home appliances.

Devices such as HVAC systems are essential and common in most homes.

It gives us comfort during the hot weather and keeps us warm when it’s cold.

As a homeowner, we must be familiar with the parts of our air conditioner as well as the ways in which we can maintain them.

There are some words that we are going to run into on a daily basis especially if we’re new to the field of commercial HVAC systems.

We’ll take a look at some of these words in this commercial HVAC Maintenance Glossary to help us get more familiar with the different types:


The accumulator protects the components of the air conditioner.

It is situated between the evaporator outlet and the compressor suction port on the low-pressure side of the circuit.

The accumulator performs numerous roles such as:

  1. Providing security for compressors and avoiding compressor failure due to liquid slugging
  2. Retain the system’s moisture and toxin
  3. Maintaining the flow of oil and ensuring that only the cooling system returns to the compressor.

AFUE (Annual Fuel Efficiency Ratio)

The energy consumption of each heating system is calculated by AFUE (furnace or boiler).

It indicates how much fuel is used to heat the home as opposed to how much energy is lost by exhaust fuel.

Over time, AFUE numbers will continue to go down. Consider replacing the appliance with a more energy-efficient one when the AFUE rating is below 80 percent.

British Thermal Unit (BTU)

A calculation of the resources (heat) used in an HVAC unit to show the rate of cooling, dehumidifying, or heating.

To elevate the temperature of one pound of distilled water to an additional one degree Farhenheit, an energy equal to one BTU is required.

Central Heating System

Central Heating System is a basic HVAC term.

It is usually placed in our basement or garage, including a primary heating appliance, such as a furnace.

It is essential to be familiarized with this term especially if you live in Cleveland where the weather gets really cold during the winter.

There are four primary components:

  1. fuel-supplying and fire burners
  2. heat exchangers
  3. a blower and
  4. a ventilation system that serves as an exhaust for by-products of gaseous substances.

You can choose between heating systems that operate on either gas or oil as fuel or a bundled heat pump that can use both kinds of fuel.

Condenser Coil

A condenser coil is an essential part of an HVAC system.

Most homeowners will have to deal with this part frequently, which is why it is included in this Commercial HVAC Maintenance Glossary.

It is the system in the air conditioner or heat pump by which the refrigerant is pumped.

When a fan blows outside air over the coils, it releases heat into the atmosphere.

By leaving the coil, this will return the hot vapor that entered the coil into a hot liquid.

Forced Air System

Forced air systems draw cooler air towards the ventilation system and move the air to the furnace.

It heats the cold air, transfers it through various ductworks, and distributes it through air vents in the home into different spaces.

If you don’t want a certain space to be heated, simply cover the air vent.


HVAC stands for: heating, ventilation, and air-conditioning system.

This system supplies residential and industrial buildings with heating and cooling systems.

From single-family homes to submarines, where they provide the means for environmental comfort, you can find HVAC systems everywhere.

Heat Exchanger

The heat exchanger, situated inside the heating system, draws in fresh air from outside or inside the house, heats it easily, and blows it into the building through the ductwork.

Are you looking for the best air conditioning system installation?

This Commercial HVAC Maintenance Glossary can surely help us work our ways with our devices, but contacting an AC company is the best choice when it comes to installations.

Search no further!

HVAC Cleveland Pros is here to help you!

We make sure to offer the best services to satisfy our clients in need.

Don’t hesitate and call us now!

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