Commercial HVAC design is an in-depth exercise that must not only take into account the current needs of the building, but also the system’s long-term efficiency to help the occupants be comfortable and optimize energy consumption.
However, several mistakes can sneak into HVAC design and lead to uneven temperature distribution, frequent service calls, and increased utility bills. It’s critical to be aware of these pitfalls early in the design phase to ensure ongoing, reliable HVAC performance.
Let’s have a look at five common mistakes to avoid when designing your HVAC system so you can plan your next new build or retrofit with confidence.
Improper Load Calculations
Calculating accurate heating and cooling loads is critical to ensuring your building has the right-sized system to heat and cool the space properly. Unfortunately, some contractors rely on broad estimates or outdated assumptions to make their load calculations, leading to improperly sized systems.
The consequences of improper load calculations affect the whole space. Using a system that’s too big results in short cycling, wasted energy, and compromised humidity control. On the other hand, undersized systems struggle to maintain optimal comfort, leading to rapid wear, excessive energy consumption, and occupant complaints.
In both cases, operational costs increase, eating into your profits.
Reputable HVAC service providers will conduct detailed, room-by-room load analyses using advanced modelling tools that account for building envelope, occupancy, equipment, and even local climate information to calculate precise load requirements. This up-to-date data can then be used to design an HVAC solution perfect for your building’s specific requirements.
Neglecting Zoning And Controls
Commercial buildings are not uniform environments where all interior spaces have the same occupancy levels or usage. Spaces that are infrequently occupied, such as server rooms and storage areas, have different climate needs than regularly staffed offices, so treating all spaces the same when designing its HVAC system will waste energy, undermine efficiency, and increase expenses.
To ensure that each space is heated and cooled according to its occupancy level and function, HVAC system designers should create different zones divided by climate requirements. These zones should be controlled by a Building Automation System (BAS) that enables granular scheduling and control over each zone. BAS helps property managers optimize energy consumption during off-peak hours and provides them with actionable data for continuous adjustments and swift troubleshooting.
Read More: The Benefits Of Installing A Building Automation System In Your Commercial Properties
Overlooking Ventilation Requirements
Poorly designed ventilation systems can lead to stuffy spaces, foul odours, and cause health issues by delivering poor air quality to the building’s occupants. They can also inflate energy bills by conditioning unnecessary volumes of air during low-occupancy periods.
Integrating demand-controlled ventilation and energy recovery ventilators (ERVs) that dynamically adjust airflow based on real-time occupancy and air quality monitoring can help your ventilation system deliver high-quality air to the interior space while keeping energy consumption – and bills – in check.
Disregarding Equipment Accessibility
It’s perfectly natural to want to maximize the use of every inch of floor space. However, when it comes to shoehorning HVAC equipment into cramped mechanical rooms or small, inaccessible spaces, you could be looking at a whole host of problems.
Your technicians may struggle to access the equipment stuffed into cramped quarters, causing delays in maintenance checks and repairs that take longer than usual. The result is a steady decline in efficiency, avoidable downtime, and soaring maintenance costs. Future expansion of your system can also be compromised as your building needs change.
Equipment access also needs to be prioritized to ensure that there is ample clearance on multiple sides to access HVAC components such as air handlers, pumps, and control panels. Allowing for easy inspection and service will help your system continue to run efficiently and extend the life of its parts and components.
Using Incompatible Components
It can be tempting to want short-term cost savings when designing your HVAC system. However, the truth is that building your system with incompatible brands can lead to long-term expenses that can significantly exceed your initial savings.
Mixing and matching controls, sensors, and interface units from different manufacturers often leads to integration problems, shortened service lifespans, and on-site technical disputes. You can avoid these expensive headaches by prioritizing interoperability in your equipment, even if the initial cost is a little more.
Work with licensed HVAC technicians who can guarantee compatibility across all system elements and recommend components that meet rigorous commercial standards.
Read More: 5 Cost Effective Methods To Improve Your HVAC System’s Performance
Partner With Springbank, Providing Quality Commercial HVAC Services In Ontario since 1990
The experts at Springbank Mechanical Systems are your trusted source for honest, reliable commercial HVAC solutions that focus on optimal system performance and energy efficiency. Our team is licensed and qualified to work with all brands and types of commercial HVAC equipment, allowing us to recommend new technology that will help further reduce your operating costs.
We are your go-to professionals for quality commercial HVAC services in Toronto and Ontario. Contact a Springbank HVAC expert today for a free, obligation-free discussion about how we can help reduce your energy bills and extend the life of your equipment.
Gregg Little, Paul DeThomasis, and Hugo Lopes are co-owners of Springbank Mechanical Systems. You can reach them at 905-569-8990 or via email at gregg@springbank.com, paul@springbank.com, or hugo@springbank.com.
