Ventilation Control Unit LZ1

Ventilation control units from AUMÜLLER safely and reliably control your window drives for natural ventilation. In connection with weather, temperature and room sensors, they provide fresh air and comfort in everyday life, independent of the user. This protects the environment and reduces energy costs.

AUMÜLLER offers the optimal solution for every application: from the simple control of individual window drives on ventilation casements to complex, position-accurate control via data bus systems.

Simple operation, reliable signal evaluation and programmable functionality allow optimal integration into modern overall concepts. Industrial and office buildings, residential buildings and schools, or even atriums and conservatories, are a few examples of where AUMÜLLER ventilation control units excel in natural ventilation. We also have the right setup for your building.



  • intelligently networked, low wiring effort, low installation costs.
  • automated windows, user-independant energy saving, comfort and convenience.
  • individual power and speed, accessible via modern facade automation systems.
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Technical specification
Area of application natural ventilation
Operating voltage 230 V AC (195 – 253 V AC, 50/60 Hz)
Max. power consumption 60 W
Output voltage 24 V DC (20 – 28 V DC / 2 Vpp)
Output current max. 2.5 A
Inputs 1x Drive Line / 1x 24 V DC, 500 mA (rain sensor)
Display Operation, output voltage in OPEN/CLOSE direction
Slots BUS-Module (LON, KNX)
Connections S12 drives for communication with BUS modules
Ambient temperature range -5°C … + 40°C
Protection rating IP 54
Housing surface mounting, plastic (ABS)
Dimensions (WxHxD) 180 x 130 x 60 mm
Connection terminals screw terminals 2.5 mm² (rigid wires)