Design parameters
| Standard | EN 12845 |
| Hazard class | OH1 |
| Design density | 5.0 mm/min |
| Area of operation | 72 m² |
Design notes
- Plan zone valves per tenant floor for fit-out flexibility
- Use concealed heads in client-facing areas
- Coordinate with BMS for flow-switch monitoring
- Allow for future densification in core areas
Typical equipment
- Concealed pendent K80
- Zone control valves per floor
- Jockey pump + main pump
- Inspector test connection per floor
How FireTwin AI handles office building projects
Upload your floor plan or model the building footprint directly. FireTwin AI classifies rooms, applies the EN 12845 OH1 grid, runs the hydraulic calculation from the most remote area back to the pump, and produces a priced BOM — all re-verified on every edit.