Ventilation unit with passive house approval and heat provision rate of over 80%., With cross-counterflow heat exchanger including stepless summer bypass with 100% WT coverage and maintenance-free EC fans. , Operation via modern touch panel, including weekly program, calibration menu, password-protected service menu and much more. The KWL ceiling unit can also be integrated into the building management system using the standard ModBus protocol. , Ventilation operation can be selected between constant volume or constant pressure. , Integrated electric preheating register for extremely cold seasons. , In order to achieve a constant supply air temperature, an external WW reheating register can be controlled via the device control using the optionally available WW control WHSH 1100 24V (0-10V). , Externally installed exhaust air and outside air flaps can be connected and controlled. The device can be put into standby mode using an external switch. There is also a contact for fire protection mode and an additional contact for external control. A CO2 or humidity sensor can be connected to operate the device on demand. ,
