Converting a Single Zone Air Handling System to Variable Air Volume Control In the 1880s, Nikola Tesla invented and was granted a patent for his three-phase, alternating current induction motor, a device that was leaps and bounds more dependable than the direct current motors of the time. However, it was not until nearly the [...]
Remove the Brakes on Your Pumps by Installing VFDs It is quite commonplace to find variable frequency drives (VFDs) installed on pumps in any new construction or retrofit project and of course, they are necessary for any type of variable volume pumping system. However, VFDs can also be utilized on constant flow pumping systems. [...]
HVAC System Trim & Response Resets When a building is newly constructed, one of the last steps performed on the HVAC system is the testing, adjusting, and balancing (TAB). The purpose of TAB is to verify the design air and water flows are properly supplied throughout the building. One of the most critical components [...]
Before the days of advanced control systems, buildings would be preheated or precooled prior to occupancy using a standard warm up or cool down mode of operation. These primitive sequences would start the air handling units at a set time interval before the building entered into occupied mode. The air handling unit would then [...]
Discussing building energy management can be overwhelming. Everyone wants to save energy and money, but utility contract negotiations, retrofitting HVAC systems, renewable energy, and battery storage can add a lot of complexity to the conversation. With numerous retro-commissioning projects under our belt, we want to share our knowledge with building owners and facility managers [...]
