Additional control units ATZ-4

ATZ-4 modules, through contact outputs, enable automatic ventilation control when two CO₂ concentration thresholds are exceeded in the AirTECH eko+ controllers. This helps reduce the operating costs of mechanical ventilation and significantly lowers the cost of heating/cooling outdoor air in the ventilation system. At the same time, it ensures that indoor air quality is maintained at an appropriate level—conducive to intense mental work or effective relaxation.

Features

• 3 CO₂ sensor inputs; each sensor is connected using a 4-wire telephone or UTP cable (max 50 m);
• splash-proof enclosure (IP44) with flexible, glandless cable entries;
• 2 alarm outputs A1/A2, contact type (NO/NC), for controlling external 230V~ devices (e.g., a fan);
• mains power supply with 230V~ connection (without a switch).