The existing controls were pneumatic, using a compressor to send signals via compressed air. This energy-inefficient system required regular maintenance and replacement of increasingly obsolete parts. With the completion of this project, the air compressor was decommissioned! The new digital controls system installed uses programing and schedule functions to reduce energy usage while adding essential alarm notification for Casa de Corazon staff. Finally, Kraft installed new variable frequency drives (VFDs) on the remaining constant volume air handler which allows the fans to reduce speed, further saving energy, and resulting in a rebate from the utility company.

The building was fully occupied during the entirety of this project, adding complexity, but Kraft technicians, skilled in anticipating the challenges of retrofits, approached each equipment cutover with precision and care to continue providing healthy and comfortable air for staff and children. During the project, further diagnosis and repair to mechanical items included hot water valves, AHU evaporator coil, exhaust fans, general ductwork deficiencies, and air balancing, all of which different Kraft trade members joined together to provide a holistic approach to improving and sustaining the mechanical equipment serving this important childcare facility.