The new system saved over $60,000 in energy over the 1st 16 months of operation on thier utility bill.
The owners of the 8-story Joseph White Building were faced with a major decision: continue to repair the 40-year old energy consuming mechanical system or replace it.
When one of the chillers failed, leaving them with another large repair bill and potentially pouring good money after bad, they called Air Masters. We reviewed all of the options, their costs and payback, and proposed a different concept than repairing or replacing the existing air cooled chillers and cast iron boilers that served the building’s four-pipe dual duct system.
Everyone involved in the project had to work together as a team to fit the new equipment in place and make the changeover between the old and new system seamless.
The new energy efficient system consists of two rotary screw R-134A water cooled chillers, a new cooling tower, and three high efficiency modulating boilers and a plate and frame heat exchanger to provide winter economizer cooling.
Compared to the old air-cooled chillers that ran nearly year round with their aged fouled condensers and the two stage cast iron boilers, the new system saved over $60,000 in the first 16 months of operation.
Air Masters designed and installed a complete facility automation system. This orchestrated the operation of all the components of the new mechanical systems. The new building system not only provides control, scheduling, and monitoring capabilities, but it is scalable and will support the ongoing effort to convert the building to dual-duct VAV from its present constant volume airflow, thus saving even more energy and increasing tenant comfort.
So the bottom line is simply this: for the owners of the Joseph White Building, replacement with new equipment made the most sense. The new heating and cooling systems are reliable and energy efficient. It was a win-win proposition for everyone involved.
The tenants are now happy with a system that keeps them comfortable year-round, and the owners are happy with the energy savings.
