Optimise HVAC And Save Energy

Maintenance Managers – I know every day you are faced with having to provide quick answers to complex maintenance issues. This free publication I am Your Optimisation Guide with link below is written for you. It is designed to raise awareness to factors that impact on energy use in HVAC systems and lists 20 energy saving opportunities your organisation can implement in 2020. JP

I am Your Optimisation Guide A publication by the Office of Environment and Heritage (OEH) in NSW Government.

Project Drawdown – We can all simply embrace the best solutions already available for us to reverse the climate emergency. According to Project Drawdown the BMCS alone can reduce energy in commercial buildings by 10 to 20%. And we agree. A summary of solutions by overall rank can be found here:

Drawdown Rankings

Our Favourite Opportunities

Search and you will find; sit around hoping, and you will be disappointed. Active searching for opportunities and quick-wins is the only way to achieve continuous improvement.

1. Turn Off Equipment When Not Needed

This is a quick win for sure. Due to poor sequences, poor optimum start/stop control, undersized systems, or general disregard for energy, equipment scheduling is set to 24/7.

2. Tune Up Of Air Terminal Units (VAVS)

This not only saves energy but reduces the cold/hot complaints from occupants. Issues commonly found include:

  • Inoperative damper actuators
  • Defective controllers
  • Miscalibrated temperature sensors and incorrect setpoints
  • Incorrect static pressure setpoint
  • Deficient air balance
  • Reheat control valves stuck in position, leaking by or driving backwards

These issues are normally found during routine maintenance inspections. It’s not unusual to find 50% of VAVs with at least one of the issues above.

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