Language:
FAQS
Are the SRI classes the same as those in the ISO 52120 standard?
Calculation methodology
Answer:
No, the SRI classes don't match those of the ISO 52120 standard, although their requirements are closer. The ISO 52120 standard actually defines four classes of building automation systems:
- Class A: High energy performance building automation and control systems (BACS) and technical building management (TBM)
- Class B: Advanced BACS and TBM
- Class C: Standard BACS
- Class D: Non-energy efficient BACS
While the SRI methodology procures seven SRI classes (A–G).