The Ultimate Beginner’s Guide to Smart HVAC for Businesses Posted on October 23, 2024 HVAC accounts for between 35% to 39% of the energy used in commercial and industrial buildings, the largest share of energy consumption. As such, any savings that could be made in HVAC usage can yield significant returns for the company’s bottomline. Additionally, the rising costs of utilities as well as stricter sustainability standards are pushing more companies to adopt smart HVAC solutions to improve efficiency and reduce operating costs. Today we explore how smart HVAC systems are helping businesses achieve their efficiency and sustainability goals, and the role of AI and IoT in driving that transformation. What Makes an HVAC System “Smart”? A smart commercial HVAC system combines three core components: 1. IoT Internet of Things (IoT) refers to devices that are connected to the Internet. This makes them smarter and allows them to talk to and interact with other IoT devices. In the context of HVAC, an IoT enabled device like a smart sensor enables real-time data collection across the building. This includes Temperature and humidity Occupancy levels Air quality (CO₂, VOCs) Equipment performance (pressure, vibration) These sensors create a continuous data stream that reflects how the building is actually being used. 2. AI and Machine Learning Artificial Intelligence is all the rage today, and for good reason. While most consumers know AI in the form of ChatGPT and photo or video generation, AI has a ton of other applications. For HVAC systems, AI can process the data gathered by the IoT sensors to: Detect patterns Predict outcomes Optimize system behavior This allows the HVAC system to become adaptive and self-learning based on actual conditions and usage within the building. 3. Building Management Systems (BMS) A centralized BMS is where the IoT data and AI come together. The BMS is an app or program where all the data is shown in a dashboard. It allows facility management to: Monitor the site (or multiple sites) remotely Automate system responses Build a history of energy consumption Generate performance insights Detect errors and manage resolutions The Benefits of Smart HVAC Systems 1. Real-Time Energy Optimization One of the most immediate ROI drivers is more efficient energy use. With HVAC accounting for nearly 40% of energy consumption, the savings provided by smart HVAC can be considerable. AI-driven HVAC systems continuously adjust based on: Real-time temperature and humidity Occupancy patterns Weather forecasts Time-of-use energy pricing This eliminates wasted energy from conditioning empty or underutilized spaces. If a conference room is unoccupied for example, airflow and cooling are automatically reduced or switched off, no manual override required. According to the US Energy Information Administration, a smart HVAC system can provide 10–30% energy savings, and IoT-enabled systems can cut wasted energy use by up to 25%. 2. Improved Comfort AI uses occupancy sensors and historical patterns to dynamically adjust HVAC zones. This enables: Zoned temperature control Reduced over-conditioning Improved tenant / employee comfort Instead of conditioning entire floors uniformly, systems respond to real usage density, adjusting automatically based on the number of people or zone conditions. The result is lower energy usage without compromising comfort or safety. 3. Predictive Maintenance AI analyzes data like temperature, pressure or vibration anomalies to identify early signs of failure. So instead of waiting for a chiller or AHU to fail, the system can flag potential issues before they escalate. By being proactive instead of reactive, this allows: Reduced maintenance costs by up to 40% Minimize unplanned downtime Extended lifespan of HVAC equipment The benefits here are twofold: it reduces the risk of unexpected breakdowns, ensuring the system runs without interruption, and it minimizes maintenance costs by addressing issues before they escalate. This predictive approach leads to fewer service calls, improved system lifespan, and reduced downtime. 4. Peak Load Management Peak demand periods are typically the bane of facility managers, when energy usage is highest and equipment issues can crop up. Smart systems help mitigate the load by: Pre-cooling or pre-heating spaces Reducing load during high tariff windows Coordinating with utility demand response programs AI-enabled chillers, for example, can reduce peak energy usage by 15%. This lowers demand charges without compromising productivity. 5. Whole System Integration Thanks to IoT, today’s smart HVAC units are no longer standalone systems. They can be integrated with the building’s lighting systems, blinds, and other equipment to create a fully integrated smart ecosystem. For example, if the system detects too much sunlight in the summer, the blinds can automatically close in conjunction with the HVAC. This reduces cooling load on the AC. 6. Centralized Management Modern platforms allow facility managers to control multiple properties from a single interface. Capabilities include: Remote diagnostics Real-time alerts Portfolio-wide energy benchmarking This represents a major scalability advantage, especially for retail chains, offices, or multi-site apartments. 7. Continuous Learning and Optimization Unlike traditional systems, AI doesn’t rely on static programming. It continuously improves by analyzing historical performance data, seasonal trends, and finally tenant behavior. This means the system can adapt and evolve over time based on the actual energy demands of the building. Summary of Benefits 1. Lower Operating Costs ☑ Reduced energy bills ☑ Fewer emergency repairs 2. Enhanced Comfort ☑ Stable indoor temperatures ☑ Better air quality ☑ Fewer complaints 3. Improved Asset Longevity ☑ Less equipment wear and tear ☑ Early fault detection ☑ Better lifecycle management 4. Sustainability & ESG Compliance ☑ Reduced carbon footprint ☑ Better regulatory compliance ☑ Easier reporting for green building certifications 5. Data-Driven Decision Making A smart HVAC enables management to analyze Energy usage trends Equipment performance Space utilization This allows for smarter capital planning and retrofit decisions based on actual historical data. Featured Smart HVAC Brands Amana Amana’s smart PTACs can be controlled remotely via the PTAC Connect App. This app allows users to control settings, schedule temperatures, and monitor unit performance. Amana also offers the Eden Concierge System as a convenient and efficient energy management platform. It uses an in-room wireless thermostat and occupancy sensor, paired to room PTACs and peripherals wirelessly with no need for cables or wiring. With this system, every PTAC unit in the building can be monitored in real-time to check unit performance, temperatures, unit settings and run a maintenance or diagnostic check. Daikin New mini split models like the Oterra Series can be paired with optional WiFi adapters and used with the DKN Cloud App. The app also allows for compatibility with Daikin One thermostats, which automatically notify your contractor when your system needs maintenance as well as providing performance data. Friedrich Known for their feature-rich ACs, Friedrich’s new generation of mini splits and through-the-wall ACs use the FriedrichGO app. It also works with Amazon Alexa and Google Home. GE As one of the pioneers in the AC industry, GE is keeping up with the times with its new series of room ACs with built-in WiFi. These can be controlled with the GE SmartHQ app to control, monitor and set schedules remotely. Challenges to Consider Before adopting a smart HVAC system, make sure you consider these key factors: ✅ Capital Investment While smart systems provide long-term savings, ensure you have the necessary capital and projected ROI before embarking on an upgrade, especially if you have multiple properties. ✅ System Integration There are dozens of smart HVAC manufacturers. When choosing a brand, consider if their models can be integrated with your existing BMS or legacy systems. ✅ Cybersecurity Risks IoT devices collect a significant amount of data, and protecting this data from breaches is crucial. Since smart HVAC can be remotely controlled, make sure you have robust network security in place. Facility management may also need to be educated on cybersecurity best practices, to avoid falling victim to common cyber attacks like phishing or social engineering tactics. What If You Don’t Have a Smart HVAC? For businesses with multiple AC units that can’t readily transition to smart HVAC systems, such as apartments or dorms, there is anothersolution. Airzone makes WiFi adapters for just about any popular HVAC brand. These modules can be plugged into many mini split models, so they can be controlled remotely with a smartphone or tablet using the Airzone Cloud app. Depending on your AC unit’s capabilities, the app allows for: On and Off control Auto Mode – the unit will change automatically between heating and cooling Fan Mode – fan will run without heating or cooling Heating Mode Cooling Mode Dry Mode Schedule – 7 days schedule Multi-user and multi-session The WiFi adapters are easily installed on or inside the indoor unit. With the adapter installed, the formerly “dumb” AC can now be controlled remotely, by voice, and interact with other smart home devices on your Amazon Alexa or Google Home network! Check out our spotlight article on Airzone’s WiFi adapters for more info. Smart HVAC is the Future In today’s cutthroat environment of increasing costs and shrinking bottomlines, smart HVAC is no longer an optional upgrade – it’s becoming core infrastructure for modern commercial buildings and businesses that wish to survive and thrive. For property and facility managers, the value is clear: significantly lower costs, improved efficiency, and better occupant experience make smart HVAC upgrades worth it. With HVAC representing the largest controllable energy expense, investing in smart systems is one of the most impactful decisions you can make. Mickey Luongo Mickey is the resident heating and air conditioning expert with over 15 years of experience in the industry.
