The OPV (One Per Vent) integrates smoke control components — natural ventilators, fire and smoke curtains, motorized dampers, and extract fans — into a centrally monitored, addressable life safety network. Using the field-proven Apollo communication protocol, it delivers reliable smoke management with individual or grouped control of each connected unit.

What separates the OPV from a general-purpose BMS?

The OPV is purpose-built for life safety smoke control. Integrated battery backup maintains full system status during power failures. Dual hardware and software watchdogs continuously monitor for faults, log events, and escalate to failsafe mode — with fault signals output to any BMS via Mimic or BMS protocol over RS485. CE marking for both the Low Voltage and Electromagnetic Compatibility Directives confirms compliance with life safety equipment manufacturing and test standards.

How does the system scale across large buildings?

Each OPV panel drives up to 4 spurs with 126 addressable units each — 504 units total. Up to 10 remote Firefighter's Override Panels (FOPs) connect to the same panel, each controlling 12 zones. An expansion module extends I/O beyond 12 digital inputs or 4 outputs. Control logic is fully reprogrammable — adapting to layout changes without hardware replacement.

System Components

Notable Installations

• Highbury Square, London — £600,000 smoke ventilation integrating AOVs, dampers, and door actuation under centralised OPV monitoring
• Ilac Centre, Dublin — smoke curtains, Seefire ventilators, and extract fans controlled by a single OPV system