Features

Central ventilation unit for ceiling installation with heat recovery , EC-fans, electric pre-heater battery, automatic bypass, graphic display . Ventilation unit tested according to passive-house standards with efficiency over 80%. With larger surface cross counterflow heat exchanger including automatic bypass with 100% heat exchanger covering and maintenance-free EC-fans. User-friendly operation over elf-describing graphic elements with plain text directly at the touchscreen, incl. weekly program, calibration menu, code-protected service menu, etc. Choice between constant air flow volume or constant pressure regulation. Integrated electric pre-heater for extremely cold seasons. In order to achieve a constant supply air temperature an external warm water heater battery can be controlled over the unit control by means of the optionally available hydraulic unit WHSH 1100 24V (0-10V).Control of external exhaust and intake air shutters. Via an external switch, the unit can be set in standby mode. In addition, a contact for the fire alarm and additional contact for external control is available. Demand oriented ventilation using CO2- or humidity sensor.