Choice Mechanical Guides & Articles

The Choice Mechanical team has put together helpful articles, guides and resources for business owners facing commercial HVAC challenges. If you have questions, need an estimate or are facing an emergency situtation, please do not hesistate to contact us.

Why Commercial Boiler Tubes Fail and How to Prevent Repeat Damage

Why Commercial Boiler Tubes Fail and How to Prevent Repeat Damage

A leaking boiler tube is the end of a failure process, not the beginning. Plugging or replacing the damaged tube may return a boiler to service, but it does not explain whether scale, oxygen corrosion, poor combustion, low water, erosion, or thermal stress will damage...

Can an Older Commercial Building be Retrofitted with Heat Pumps?

Can an Older Commercial Building be Retrofitted with Heat Pumps?

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...

Server Room Cooling Problems that can put Operations at Risk

Server Room Cooling Problems that can put Operations at Risk

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...

Why Commercial Make-Up Air Units Fail and What to Check First

Why Commercial Make-Up Air Units Fail and What to Check First

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...

How to Prevent Building Automation System Alarm Fatigue

How to Prevent Building Automation System Alarm Fatigue

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...

Common VAV Box Problems and How They Affect Building Comfort

Common VAV Box Problems and How They Affect Building Comfort

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...

Humidity Control: How to Protect Your Building and Equipment

Humidity Control: How to Protect Your Building and Equipment

A building can be at the thermostat setpoint and still feel wrong. Paper curls. Metal diffusers sweat. Exterior walls develop damp spots. Employees describe the space as clammy, while a server room reports static-related concerns during winter. These are not...

How Commercial Duct Leaks Increase Energy Costs and Reduce Comfort

How Commercial Duct Leaks Increase Energy Costs and Reduce Comfort

A facility team may first notice dust streaks near joints. By the time that symptom is obvious, failed seams and joints or another system condition may already be affecting performance behind the scenes. Leaking supply or return ducts waste conditioned air and can...

How High Static Pressure Damages Commercial HVAC Equipment

How High Static Pressure Damages Commercial HVAC Equipment

It usually starts as one odd reading, one uncomfortable zone, or one alarm that clears before anyone reaches the equipment. Excessive resistance in a duct system forces fans and connected equipment to operate outside intended conditions. In an Indianapolis...

What Causes Commercial HVAC Systems to Short Cycle?

What Causes Commercial HVAC Systems to Short Cycle?

Commercial HVAC Short Cycling: Causes, Warning Signs, and How to Prevent Costly Equipment Failures If your commercial HVAC system starts, runs for only a short period, shuts off, and then restarts again minutes later, it may be short cycling. While the equipment is...

How to Spot Hidden Control Problems That Waste Cooling Energy

How to Spot Hidden Control Problems That Waste Cooling Energy

Not every summer HVAC problem comes from dirty coils or failing equipment. In many commercial buildings, the real issue is hidden in the controls. A schedule that was never updated, a bad sensor, a thermostat override, or a stuck damper can quietly waste energy for...