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Author: Javelin Controls
Date: February 17, 2023

How Does A Commercial HVAC System Work?

A commercial HVAC system is an essential component of any commercial building, providing occupants comfort, air quality and safety.

Understanding how an HVAC system works is crucial to ensure optimal performance and longevity.

Whether you are a building owner, facility manager, or simply interested in learning more about commercial HVAC systems, this post will provide valuable insights and information to enhance your understanding.

What Is Commercial HVAC?

Commercial HVAC (Heating, Ventilation, and Air Conditioning) refers to the heating and cooling systems used in commercial buildings to regulate the indoor temperature and air quality.

There are various types (which we will explore in more detail), but these systems typically have several components, including an air handling unit, refrigeration cycle, ductwork, and controls.

How Does A Commercial HVAC System Work?

A commercial HVAC system uses various components to regulate the temperature, humidity, and air quality inside a commercial building.

The system consists of the following components:

Air Handling Unit:

This component provides heating and cooling by circulating air through a heat exchanger or evaporator coil.

Refrigeration Cycle:

This component cools and dehumidifies the air by using a refrigerant to transfer heat from the indoor air to the outdoor air.

Ductwork:

Ductwork distributes the conditioned air throughout the building via a network of ducts.

Controls:

These components regulate the operation of the HVAC system and control the temperature, humidity, and air quality. Commercial buildings benefit from more advanced controls for better energy efficiency and reliability. For example a central control system can use sensors to monitor and automate temperature schedules and even lighting operations. These control systems are essential for ensuring the overall system operates effectively and allows users to easily program the system to meet the exact needs of the building occupants.

Types of Commercial HVAC

There are several types of commercial HVAC systems, each with its own unique characteristics and benefits:

Split System

This type of HVAC system has two main components: an outdoor and an indoor unit. The outdoor unit contains the compressor and condenser, while the indoor unit contains the evaporator and air handling components.

Split systems are often connected to a building’s ductwork and are usually installed on smaller commercial buildings.

Packaged System

This HVAC system contains all the components in a single unit, either located on the roof or outside the building.

Chilled Water System

This type of HVAC system uses a central chiller to produce cooled water, which is then circulated to air handling units throughout the building to cool the air.

Variable Refrigerant Flow (VRF) System

This type of HVAC system uses refrigerant to provide heating and cooling, with the ability to vary the amount of refrigerant flowing to individual air handling units based on demand.

They are ductless and as a result a more expensive option.

Geothermal System (often referred to as ‘Heat Pumps’)

This HVAC system uses the earth's constant temperature to heat and cool a building, making it a highly energy-efficient option.

Each type of commercial HVAC system has its own strengths and weaknesses, and the best choice depends on the specific needs of a building.

It's essential to consult with an HVAC professional to determine the most suitable system for a particular building.

Benefits of Commercial HVAC

There are many benefits to having a commercial HVAC system.

Here are five ways we think they can help buildings and their occupants.

  1. Comfort: They provide a comfortable indoor environment for employees, customers, and visitors.
  2. Indoor air quality: They regulate the air quality by removing contaminants and controlling humidity levels, which helps to maintain good health and reduce the risk of respiratory problems.
  3. Energy efficiency: They use energy-efficient equipment to regulate temperature and reduce energy costs, ultimately leading to a reduced carbon footprint.
  4. Safety: They play a crucial role in fire safety by providing proper ventilation, controlling humidity levels, and removing harmful gases and fumes.
  5. Productivity: A comfortable indoor environment can improve the productivity and well-being of employees and customers, leading to increased satisfaction and profitability.

Professional Installation, Maintenance and Servicing of HVAC Systems

At Javelin Controls, our commercial HVAC experts have more than 20 years of experience installing, maintaining, servicing and repairing HVAC control systems and Building Energy Management Systems (BeMS).

To maintain the highest standards, we only use a narrow range of components from top-quality suppliers, ensuring our installations are reliable and maintainable in the long term.

Our team takes pride in the quality of their work, paying attention to every detail, even those parts of our systems that no one will ever see.

We cover all aspects from Site Survey, Design, Consultancy, in-house Panel Build, Software Graphics, Install & Commissioning.

We also provide Troubleshooting & Engineered Solutions.

Contact our team today to find out how we can make your business breathe better and more efficiently.

Get in Touch
If you'd like to chat to our team then get in touch by phone or email and we'll answer any questions you have.
Tel: 023 9400 4123Email: sales@javelincontrols.co.uk
Unit 16, Portsmouth Enterprise Centre
Quartremaine Road
Portsmouth
PO3 5QT

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Javelin Wesbite Logo
We cover all aspects from Site Survey, Design, Panel Build, Software Graphics, Install & Commissioning all in house. We also provide Consultancy, Troubleshooting & Engineered Solutions.
Unit 16
Enterprise Centre, 
Quartremaine Road, 
Portsmouth 
PO3 5QT
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