by Choice Mechanical Team | Sep 3, 2026 | HVAC Articles
Yes, many older commercial buildings can be retrofitted with heat pumps. The harder question is whether a particular building can be converted without creating new electrical, comfort, ventilation, or peak-heating problems. A commercial heat pump retrofit is not a...
by Choice Mechanical Team | Sep 1, 2026 | HVAC Articles
A server room can be cool at the wall thermostat while equipment at the top of a rack is already receiving overheated air. The room-average temperature may look acceptable, but recirculation, blocked airflow, a failed fan, or loss of cooling capacity can create...
by Choice Mechanical Team | Aug 25, 2026 | HVAC Articles
A make-up air unit can be running and still fail its job. The fan may turn while the building remains negative. The burner may fire while discharge air stays too cold. The BAS may show the outdoor-air damper open even though a broken linkage leaves the blades nearly...
by Choice Mechanical Team | Aug 20, 2026 | HVAC Articles
The capacity printed on the existing rooftop unit is not the building’s load. It is the size of equipment someone selected—perhaps twenty years ago, before new windows, LED lighting, added ventilation, changed tenants, or a warehouse conversion altered how the...
by Choice Mechanical Team | Aug 13, 2026 | BLOG, Chiller Articles, HVAC Articles, Maintenance Articles
How to Prevent Building Automation System Alarm Fatigue A building automation system is supposed to help facility teams identify problems quickly. But when the BAS generates hundreds of repetitive, low-priority, or unnecessary notifications, alarms can start having...
by Choice Mechanical Team | Jul 24, 2026 | HVAC Articles
When one office is hot and the room next door is cold, the central air handler is not always the culprit. In many commercial buildings, the last device responsible for controlling airflow to each zone is a variable air volume box. If that VAV box cannot measure...