Maintaining a commercial building is complex, and business owners often need professional advice on how to choose the right HVAC systems for a large space.
Although every project is different, maximizing comfort, energy efficiency, and reliability for your business means looking at multiple elements.
Size Matters
The unit size is the most important consideration when selecting a cooling and heating system for your commercial space, but bigger isn’t always better.
In addition to considering the square footage of the space when trying to choose the right HVAC system for a large space, evaluate the layout, insulation, ceiling height, sun exposure, and number of people working in the space all influence the ideal unit size.
To calculate the required cooling capacity in BTUs (British thermal units), divide the square footage by 400, then multiply by 12,000 to get the minimum cooling capacity; you’ll need to add additional capacity for factors like windows, high ceilings, and workers.
Additional Factors to Consider
Climate
Not all HVAC systems work the same in every environment. Extreme temperatures in either direction can affect system efficiency and capacity.
Indoor Air Quality Needs
HVAC directly influences indoor air quality, including humidity, ventilation, and air filtration, so you need to choose a system that creates a comfortable and healthy working environment.
Energy Efficiency
The Seasonal Energy Efficiency Ratio (SEER) requirements apply to commercial systems. The higher the SEER rating, the more efficient the system and the less it will cost to run.
Regulations
In addition to SEER ratings, your HVAC system must comply with applicable government regulations.
Get Help With Commercial HVAC
When you need professional, experienced insights into how to choose the right HVAC system for a large space, get in touch with Interstate AC at (615) 802-COOL (2665).
We’re the most trusted commercial HVAC experts in Middle Tennessee and have the expertise to ensure your business stays comfortable year-round.
Frequently Asked Questions
What Happens If the HVAC System is Oversized?
An oversized HVAC system will use more energy, but won’t provide the most reliable or even cooling. Excess capacity will cause the unit to short-cycle and turn off before it fully warms or cools the space, resulting in uncomfortable temperatures and excess humidity.
How Long Does a Commercial HVAC System Last?
The average system lasts 12 to 15 years when you choose the right HVAC system for a large space and invest in regular maintenance.
What Are the Most Common Air Conditioning Systems Used in Large Buildings?
Central air conditioning is the most common system for large buildings. Very large industrial buildings typically use chillers, which distribute cooled water or liquids via a series of coils throughout the building.
