Advocate Good Samaritan Hospital, a 333-bed 1,065,400-square-foot community facility, opened in 1976. It includes the only Level 1 Trauma Center in DuPage County. A retro-commissioning effort improved the facility’s operating efficiency.
- The focus of this project was the retro-commissioning of 18 main air-handling units (AHUs) and their associated DDC controls.
- Each AHU within the project scope was functionally tested for operational deficiencies
- Six retro-commissioning measures (RCMs) were implemented, resulting in verified savings of 378,688 kWh and 43,905 therms.
- RCMs implemented included:
- Equipment operation scheduling.
- Static pressure reset.
- Economizer optimization.
- Supply air temperature reset for single-duct AHUs.
- Supply air temperature reset for dual-duct AHUs.
- Nighttime zone airflow setback.
- Through scheduling equipment to turn off at night, the facility was able to save approximately $16,416 annually. This measure had a simple payback period of 0.08 year.
