A building automation system or BAS is a network of controlling and monitoring devices mainly responsible for the heating, ventilation, and air conditioning (HVAC) control system in large facilities and commercial buildings. Building automation systems are most commonly implemented in large facilities such as healthcare facilities, schools, universities, hotels, residential buildings, and data centers. A BAS network allows building operators to supervise and control the HVAC systems from a centralized location known as the Building Management System or BMS. VAV system, the air handling unit (AHU) and the VAV boxes are physically separated from each other, and each one has its own controller, also distanced from one another. However, for a VAV system to operate effectively, the VAV Boxes and the AHU have to talk to each other; in other words, they need to share information to properly adjust their setpoints based on zone heating or cooling demand.
Maintenance: More Than Just Fixing What’s Broken
Too often, maintenance is seen as a “repair shop”—something that only springs into action when equipment fails.
However, in truly high-performing organizations, maintenance is a strategic endeavor. It’s about designing reliability, managing costs, and protecting the life of every asset.
According to the Maintenance Body of Knowledge (BoK), world-class operations aim for a smart balance:
⚠️ Unplanned (Breakdown) Maintenance – less than 10%
The most disruptive and costly type. Breakdowns can consume 3–5 times more resources than planned work once downtime, safety, and lost output are factored in.
🛠️ Planned Maintenance
Preventive (30–40%) – Scheduled checks and replacements. Necessary, but excessive use risks overspending.
Corrective (10–15%) – Fixing issues found during inspections before they escalate. Good planning here keeps plants steady.
Predictive / Condition-Based (40–50%) – The ideal. Leveraging sensors, data, and condition monitoring to act just in time. It’s proactive, cost-optimized, and reliability-focused.
The real difference between average and world-class operations? A clear roadmap to reduce breakdowns and invest more in predictive strategies.
This shift takes leadership, robust systems, and above all—a culture that treats maintenance as a driver of business performance, not just a cost center.
Because every percentage point gained away from unplanned work means:
✔️ Lower operating costs
✔️ Safer, more reliable assets
✔️ Predictable, stable operations
Maintenance excellence isn’t about fixing machines. It’s about shaping outcomes.
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Image credit: ResearchGate
However, in truly high-performing organizations, maintenance is a strategic endeavor. It’s about designing reliability, managing costs, and protecting the life of every asset.
According to the Maintenance Body of Knowledge (BoK), world-class operations aim for a smart balance:
⚠️ Unplanned (Breakdown) Maintenance – less than 10%
The most disruptive and costly type. Breakdowns can consume 3–5 times more resources than planned work once downtime, safety, and lost output are factored in.
🛠️ Planned Maintenance
Preventive (30–40%) – Scheduled checks and replacements. Necessary, but excessive use risks overspending.
Corrective (10–15%) – Fixing issues found during inspections before they escalate. Good planning here keeps plants steady.
Predictive / Condition-Based (40–50%) – The ideal. Leveraging sensors, data, and condition monitoring to act just in time. It’s proactive, cost-optimized, and reliability-focused.
The real difference between average and world-class operations? A clear roadmap to reduce breakdowns and invest more in predictive strategies.
This shift takes leadership, robust systems, and above all—a culture that treats maintenance as a driver of business performance, not just a cost center.
Because every percentage point gained away from unplanned work means:
✔️ Lower operating costs
✔️ Safer, more reliable assets
✔️ Predictable, stable operations
Maintenance excellence isn’t about fixing machines. It’s about shaping outcomes.
hashtag
Image credit: ResearchGate
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