HVAC systems such as ACs, and furnaces are not just used in households. Commercial spaces, manufacturing units, and storage units also use HVAC systems, but the whole design and purpose of these commercial HVAC systems are very much different to the ones made for household purpose. This is why appliances made for commercial purposes and those for households are not the same.
Why can't you use your household HVAC system for your business?
Any household is much smaller than a large manufacturing unit, or a commercial space. The total power of the system, and the effect that it will have will be much lesser. A regular AC might be enough to cool a house, but it cannot be used to cool a mall. A mall occupies a larger space, and the number of people moving in, and out of it is also higher. A regular AC will never be able to cool such an environment. Here's where commercial HVAC systems can help.
The first one thing you need to consider is to find the purpose of the HVAC system.
Is it to keep meat under freezing temperature, or cool milk in pasteurization?
Is it to cool a commercial place such as an office?
Once you have decided the purpose for the system, you need to hire a commercial HVAC contractor.
How can a commercial HVAC contractor help you?
Commercial HVAC contractors have a better knowledge of the different systems, and the industries where they can be used. When you propose your need to the HVAC contractor, he will go through all the requirements, and present the best equipment that can be used.
Can you choose any HVAC contractor?
No. HVAC contractors not only sell the equipment, they also provide services that help the customer choose the system, install it, repair and maintain. It is also important to choose a commercial contractor who has knowledge about the industry and place to use the system. For example, if you need a central cooling system for your mall in commercial HVAC contractor San Diego, who has better knowledge about the weather conditions of San Diego will be able to provide a system suited for it than a commercial HVAC contractor San Diego who has no knowledge of the place.