Acute Care Hospital
LSS was contracted to perform complete HVAC Systems Cleaning of five (5) systems. The systems serviced Surgery, the Emergency Room, and Same Day / Outpatient Surgery Unit (overall 75,000 square feet of conditioned space). The client had two primary concerns that initiated the work; (1) The overall indoor air quality and infection control risk, especially given the areas services by the five systems, and the risk of Hospital Acquired Infections (HAIs), and (2) The client had seen fluctuations with postive and negative pressure diferrentials outside the norm required by ASHRAE and The Joint Commission, and attributed some of that to airflow blockages in the HVAC System’s terminal boxes (e.g Reheats, VAVs).
How LSS Helped the Client:
- Post cleaning the hospital contract with a Test and Balancing (TAB) Company, to address the positive and negative air flow issues. The cleaning process played an integral part in allowing the hospital recalibrate the positive and negative pressure differentials to meet ASHRAE and Joint Commission standards.
- Air flow improved, especially from the VAVs and the Coils in the Air Handler Units, additionally the filters were not loading as quickly. Thus energy efficiency improved, and filter cost was lessened, both factors saved the client money.
- Cleaner HVAC Systems, with source removal of contaminants, and application of an EPA microbicide helped remove contaminants from ductwork supplying air to patients in surgery and ER beds who are immunocompromised and highly susceptible to a hospital acquired infection (HAI).
Industries We Serve
- Given the critical nature of where the work was being performed, and to protect the patients from any contaminants, LSS service technicians had cordon off the areas and utilize HEPA Filtered air scrubbers, and HEPA Filtered Negative Air Machines to collect all contaminants in the HVAC System.
- Utilized pneumatic agitation devices to dislodge the contaminants which were collected by the HEPA filtered negative air machine, and then sanitized the ductwork with an EPA registered microbicide, BBJ, specifically designed for use in HVAC Systems.
- The inline terminal boxes (e.g. reheats and VAV’s) were individually cleaned, which included cleaning the coils with HEPA vacuums and applying alkaline coil cleaning. The VAVs were internally lined and had insulation fibers breaking free, so an EPA registered encapsulate, IAQ 8500, was applied to the insulation. This product will retard future mold growth and rebind the insulation fibers, to stop the fibers from breaking free and dispersing into the ambient air.
- All components of the Air Handler Unit(s) were cleaned (Blower Wheel, Mixed Air Chamber, Coils, Filter Bank, etc.). After completion of the cleaning, new filters were installed.
- Commercial HVAC Cleaning