| Catalogue number | 471233405 | 
| GTIN | 5030216110250 | 
| Production model | COMFOAIR 350 GB R | 
| Air flow rate | 400 m³/h | 
| Amperage | 1.77 A | 
| Supply voltage | 230 V | 
| Frequency | 50 Hz | 
| Noise/Sound Level | 55 | 
| Energy class I | A | 
| Energy class II | A+ | 
| With internal humidity (RH) sensor |  | 
| Depth | 268 mm | 
| Connections residential side | Insert-/duct end | 
| Thermal efficiency at 70 % air volume at 50 Pa | 90 % | 
| Electrical connection | Cable | 
| With internal carbon dioxide (CO2) sensor |  | 
| Frequency | 50 Hz | 
| Type of speed control | Other | 
| Max. air volume at 100 Pa | 409 m³/h | 
| Nominal duct diameter | 150-160 mm | 
| Suitable for wall mounting |  | 
| With thermal overload protection |  | 
| Nominal duct diameter | 150-160 mm | 
| Height | 864 mm | 
| Efficiency supply filter according to ISO 16890-1:2016 | 65 % | 
| With bypass |  | 
| Left/right orientation reversible |  | 
| Housing material | Steel coated | 
| Number of phases | 1 | 
| With volatile organic compound (VOC) sensor |  | 
| Power consumption at max. air volume at 100 Pa | 0.243 kW | 
| Suitable for floor mounting |  | 
| With external humidity (RH) sensor |  | 
| With constant volume flow control |  | 
| With wired control unit |  | 
| With zone controller |  | 
| Width | 710 mm | 
| Voltage | 230 V | 
| Electrical connection | Cable | 
| Max. air volume at 300 Pa | 300 m³/h | 
| With heating element |  | 
| Electrical connection | Cable | 
| Degree of protection (IP) | IP44 | 
| Housing material | Steel | 
| Suitable for central heating boiler connection |  | 
| Housing material quality | Expanded polypropylene (EPP) | 
| Roof connection, top |  | 
| Fuse size of the device | 1.77 A | 
| Roof connection, side |  | 
| Sound pressure level | 55 | 
| With constant pressure control |  | 
| Type of frost protection | Other | 
| Connections outdoor air side | Insert-/duct end | 
| Max. air volume at 250 Pa | 342 m³/h | 
| Suitable for (extra) humidity (RH) sensor |  | 
| Max. air volume at 200 Pa | 364 m³/h | 
| Suitable for zone controller |  | 
| Suitable for wired control unit |  | 
| Max. air volume at 150 Pa | 387 m³/h | 
| Suitable for (extra) carbon dioxide (CO2) sensor |  | 
| Residential connection, left side |  | 
| Suitable for ceiling mounting |  | 
| Residential connection, underside |  | 
| Type of motor | Electronically commutated (EC) | 
| Residential connection, top |  | 
| Max. air volume at 50 Pa | 350 m³/h | 
| Residential connection, right side |  | 
| Energy efficiency class | A+ | 
| Suitable for wireless remote control |  | 
| Supporting protocol for Modbus |  | 
| Voltage | 230 V | 
| Width | 710 mm | 
| Weight | 31.58 kg | 
| Cos phi according to EPN standard | 0.42 | 
| Energy efficiency class according to 1253/2014/EU | A+ | 
| With digital display |  | 
| Type of motor | Electronically commutated (EC) | 
| Depth | 585 mm | 
| Suitable for extra VOC sensor |  | 
| Height | 850 mm | 
| Fuse size of the device | 1.77 A | 
| Efficiency exhaust filter according to ISO 16890-1:2016 | 65 % | 
| Thermal efficiency according to EPN standard | 96.4 % | 
| Heat recovery by | Cross-counter-flow unit | 
| Power input according to EPN standard | 0.086 kW | 
| Material heat exchanger | Plastic | 
| Nominal duct diameter | 150-160 mm | 
| Supply filter according to ISO 16890-1:2016 | ISO Coarse | 
| Voltage | 230 V | 
| Exhaust filter according to ISO 16890-1:2016 | ISO Coarse | 
| Type of switch | Other | 
| Weight | 31.58 kg | 
| Operation by app |  | 
| Frequency | 50 Hz | 
| With wireless remote control |  |