Features

Compact unit with heat recovery for wall mounting, with enthalpy heat exchanger. Can be used as central ventilation e.g. for apartment buildings and flats. Universal casing for mounting the intake air connection either on the left or on the right. Casing made of galvanised sheet steel, powder-coated white, inner body made of EPP. Free access to the components through removable front door. Easy-to-install connection of intake air and exhaust air, as well as extract air and supply air through casings with DN 125 mm (accessory: connector with seal RVBD). Condensate connection on the underside of the unit, delivery includes ball siphon. Connection to drain pipe on site. Two low-noise high-performance centrifugal fans with energy-saving EC motors for extract and supply air ducting. Heat recovery by means of highly efficient, large-area enthalpy heat exchanger for heat and moisture recovery made of polymer membrane foil. Automatic summer bypass incl. heat exchanger cover. Filter equipment: ISO Coarse 65% (G4) filter for fresh air and extract air as standard; an ISO ePM1 50% (F7) fine filter is available as an option, which can also be integrated into the unit. Tool-free filter change possible. The unit is equipped with a latest Helios easyControls3 control system. The unit can be operated either via an external control element (accessories: KWL-BE ECO, -BE Touch bl, -BE Touch wh) or via the integrated LAN interface using a PC/laptop or mobile devices. Operation is also possible on the move via the cloud. The humidity sensor installed as standard and other optionally available external air quality sensors (accessories: KWL-CO2 Modbus EC3, -FTF Modbus EC3, -VOC Modbus EC3) enable automatic, demand-controlled ventilation. The integrated Modbus/RTU interface or an optional KNX module (accessory: KWL-KNX Connect) is available for connection to building management systems. Frost protection is monitored as standard by controlling the supply air flow rate and an optional electrical pre-heater that can be integrated into the unit (accessory: KWL-EVH 250 W).