Operation Maintenance Managers – Every day you are faced with having to provide quick answers to complex maintenance issues. A free publication I am Your Optimisation Guide – by the Office of Environment and Heritage in NSW Government – I am Your Optimisation Guide – is written for you.
This handbook is designed to raise awareness to factors that impact on energy use in HVAC systems and lists 20 opportunities your organisation can commence implementing in the building management control system (BMCS).
Search and you will find; sit around hoping, and you will be disappointed. Active searching for opportunities and quick-wins is the best way to achieve continuous improvement. Some of our favorite measures include:
1. Turn Off Equipment When Not Needed
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
- Temperature sensors ready incorrectly and setpoints incorrect
- 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 these issues.
3. Outdoor Air Delivery Monitoring and Control
Energy savings programs must improve on ventilation for adequate indoor air quality.
Ask us about our 10 steps to taking back control of energy and ventilation in your BMCS