KWL ceiling unit with heat recovery, EC fans, electric VH, auto-bypass, graphic display, ventilation unit with passive house approval and heat provision rate of over 79%., With cross-counterflow heat exchanger including stepless summer bypass with 100% heat exchanger 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 via the standard ModBus protocol. , Ventilation mode 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., Either a CO2 or a humidity sensor can be connected to operate the device on demand. ,
| Property | Value |
| Nominal power: | 220 W |
| Electric additional heating: | 0 to 2.2 kW |
| Nominal current: | 2.6 A |
| Volume flow: | 510 m³/h |
| Heat provision rate: | 90 % |
| Height: | 359 mm |
| Width: | 1418 mm |
| Depth: | 957 mm |
| Weight: | 110 kg |
| Heat source: | Exhaust air |
| Heat recovery via: | Cross counterflow |
| Air connection diameter: | 250 mm |
| Type of ventilation: | Central supply and exhaust air |
| With heating: | no |
| With Hot water preparation: | no |
| With water-air heater: | no |
| With additional heating: | yes |
| With remote control: | yes |
