Theatre Sterile Services Unit (TSSU)

Key Facts

• CI2® Consulting used to understand 'Cause & Effect' analysis
• Building type: Healthcare
• Detailed BMS data analysis uncovered energy wastage

Using its Ci2 Consulting service, IES undertook a detailed investigation of BMS data logs to uncover energy wastage and understand ‘Cause & Effect’ of different Control changes.

• High level analysis of AMR data
• Detailed investigation of BMS data logs for ‘Cause & Effect’ analysis
• Identified 24-hr chiller use in winter months due to AHU cooling coil control fault
  • Opportunity to reduce energy wastage
  • Minimise wasteful cooling when free cooling available
• Substantial energy savings on reduction of chiller run hours
• Poor control on chiller identified
• Compressor pulsing on/off over short time periods
  • Substantially reduced lifetime on compressor if left unaddressed
• Data driven approach to maintenance, proactive (preventing failure) rather than reactive (fixing failures by replacing with new plant)