The natural ventilation technical submission describes a ventilation control system that opens vents for fail safe operation on mains power failure, has a 72 hour battery backup, and includes inputs for fire alarms, smoke detectors, and a fireman's override switch to allow manual control. The system provides fault detection, automatic testing, and can be configured for single or multi-zone control.

1. natural ventilation technical submission
• Single Zone 2Amp or 2-10Amp 24Vdc Control . Inputs for:
• When installed correctly are compliant with EN12101-10. • Fire alarm signal
• 72 hour battery back up on mains failure. • Break glass call points
• Sealed lead acid batteries. • Smoke detectors
• Auto shut down to protect batteries (open vents to fail safe • Heat detectors
conditions first).
• Fireman’s override switch
• Relay to provide volt free fault indication (when not used for
auto-reset feature). • Thermostat (subject to special order)
• Open circuit cable detects power supply failures, removal of • Rain sensor (subject to special order)
batteries etc (code fault signal).
• Wind sensor (subject to special order)
• Auto-test – Front of panel keyswitch enables testing and
opening and closing of all actuators/vents connected.
• Facility for smoke heads to be automatically reset.
• Multi-Zone versions available by special order.

2. Dimensions natural ventilation technical submission
Fireman’s Override Fireman’s Override (key) Break Glass Call-Point) Smoke Detector Fire Alarm signal