Variable Frequency Drives and Controls
The addition of variable frequency drives and application specific controls can increase system efficiency, reduce equipment depreciation, and minimize maintenance costs in large scale boiler operations.

Boiler controls enable warm-weather shutdown when the outside temperature exceeds the adjusted indoor target temperature, creating energy savings as well as decreasing pump run‑time. Boiler controls are also able to automatically rotate system pump usage in an installation containing backup measures.

Adjustable variable frequency drives offer the ability to modulate flow rate and speed by sensing the differential pressure or temperature within the system. Distribution is regulated to meet the minimum output requirements to satisfy the system load. Tamas VFDs can provide between 1/2 and 300 horsepower while controlling up to 5 pumps.

• Energy Saving - VFD Case Study