Ventec CD 400 AOV Carbon Dioxide Sensor
Ventec CD 400 AOV Carbon Dioxide Sensor
Datasheets & Downloads
1 fileCD 400 — CO₂ sensor for demand-controlled ventilation
A roof- or wall-mounted CO₂ sensor that drives the O Range AOV system on real-time air quality — opening ventilators when occupancy pushes CO₂ up, closing them when the space empties, while smoke detection always takes priority.
What it does
The CD 400 continuously samples ambient CO₂ concentration and, when the configured threshold is exceeded, signals the O Range panel to open the ventilators serving that space. As CO₂ falls back to acceptable levels, the panel closes the ventilators — delivering air quality control without continuous manual intervention. The result is energy-efficient, occupancy-responsive natural ventilation.
The sensor connects to the dedicated CO₂ sensor input on compatible O Range panels, and any smoke or fire signal at the panel immediately overrides the daily ventilation logic.
Who it’s for
Specified by M&E engineers, sustainability consultants and building services designers on projects where occupant wellbeing, BREEAM credits or indoor air quality standards drive the ventilation strategy. The CD 400 is particularly valuable in schools, offices and meeting rooms where CO₂ levels fluctuate significantly with occupancy throughout the day.
Integration
Connects to the O Range smoke control panel via the CO₂ sensor input. Threshold and dwell are configured through O Range Connect — allowing different setpoints across zones (e.g. classroom vs corridor) on the same panel.
Standards & Compliance
- CIBSE TM40
- BB101 (schools)
- BREEAM HEA 02
- O Range panel compatible
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Call 01202 725 677Technical Specifications
Technical Specifications
| Specification | Detail |
|---|---|
| Dimensions | 95mm (W) x 97mm (H) |
| Operating Voltage | 24v AC/DC SELV |
| Measuring Range | CO2 0 – 2000 ppm |
| Core Type | 2-Core + ⏚ |
| Weight | 150g |
| Measurement | CO₂ concentration (ppm) |
| Panel Connection | CO₂ sensor input — O Range control panel |
| Override Behaviour | Overridden by fire/smoke detection |
| Typical Setpoint | 1000–1500 ppm (site-configurable) |
| Standards | Supports CIBSE TM40, BB101 (schools), BREEAM HEA 02 compliance |
Shipping & Returns
Shipping & Returns
