Commercial HVAC: Is Centralized Better Than Zoned?
If your commercial property is due for a new HVAC system, you may be weighing the pros and cons of keeping a centralized system or installing multiple, smaller units for a zoned approach. In today’s post, All Seasons Inc. helps you make a choice with insight on both systems.
Key Differences
The initial answer to the question — is a centralized system better than a zoned one? — is “it depends”. Commercial and industrial buildings vary in build and purpose, which means there is no singular solution. In broad strokes, here’s a quick rundown of how each system works and their key differences:
- Centralized systems utilize one unit to heat and cool multiple rooms and distribute air through air ducts. Smaller buildings may utilize just one HVAC system, while larger buildings may have at least one per floor.
- Zoned systems, on the other hand, utilize smaller units like window-mounted or ductless mini-split systems to cool every room.
Factors To Consider
Choosing between a centralized and zoned HVAC system involves several variables:
- Building size, layout and purpose. Centralized systems are generally more suitable for larger buildings with fewer individual rooms. Examples include retail spaces and open-plan offices. Contrastingly, zoned systems are more suitable for executive offices and condominiums.
- Available installation space. With the exception of window-mounted units, HVAC systems need a flat, open area for installation, such as a flat roof. The more units you need, the bigger installation area will be required.
- Occupant preferences. If the occupants have expressed individual heating and cooling preferences, then a zoned system would be ideal.
- Operating hours. Centralized systems are ideal if the commercial space only operates during certain hours, as the thermostats can be programmed to run at full capacity during those hours, then at lower output during off-hours. Areas with specific heating and cooling requirements, such as server rooms and walk-in refrigerators, typically require a separate system.
- Maintenance requirements. The more units you have, the greater the maintenance requirements. Reputable HVAC companies offer maintenance agreements, which essentially pre-books future maintenance appointments.
Ultimately, it’s not a question of one being better than the other — it’s whether which one is suitable for your property. If you’re still undecided, don’t worry. Our experts at All Seasons Inc. can help. Give us a call today at (253) 879-9144, or fill out our contact form to schedule a consultation. We serve Puyallup and Tacoma, WA, as well as the surrounding communities.