Legacy BMS based on proprietary protocols and obsolete technology eventually result in an accelerating drain of maintenance/capital due to:
- High and escalating energy costs
- High repair/maintenance costs
- Unhappy and uncomfortable tenants due to temperature control issues caused by frequent breakdowns
- Wasted time spent on repairing and troubleshooting unreliable parts
- Costs related to inability to adhere to City, State or Federal energy codes or ordinances
How do you free yourself from this situation and greatly lower the long-term operating costs? Follow this recommended path:
- Analyze annual energy usage against benchmarks (ENERGY STAR, CBECS, etc.). Perform an ASHRAE Level I (at minimum) Energy Audit as a starting point.
- Analyze your annual repair/maintenance costs on a per/SF basis compared to benchmarks and compare to your original $$ investment in the BMS.
- If you still have pneumatic controls, develop a comprehensive plan to replace them. This will yield reduced energy costs and far better control of the facility.
- Research the many current open communication technology options that will allow you to integrate the old and obsolete BMS, while providing you a path for updating your system over time. This should also include investigating 3rd party repair options for the legacy BMS.
- Develop a comprehensive plan and budget for a migration path to a leading-edge open-technology (BACnet-based) BMS platform.
If done correctly, implementing the above will reduce energy and maintenance costs, improve comfort and indoor environmental conditions, and provide you with a far superior user interface for ongoing operation and analysis of your facility.