46 Physical Properties D350 D450 D550 Width x Height x Depth mm 760 x 803 x 584 Casing Coated sheet steel Colours White + Green Connections Inner Diameter: Ø 180mm Condensate drain Ø 32 mm (1 ¼”) (2x) Heat exchanger v1: PP - v2: PET/Alu Material of inside section EPP / PP / ABS Weight 47 kg Power cable length 2 m (from top of unit) Mounting Wall mounting (standard) Floor mounting as an option using support frame Miscellaneous Properties D350 D450 D550 Energy class With two sensors: A+ Other: A Specific energy consumption (SEC) Cold kWh/(m².a) -77.8 (1) -76.2 (1) -72.8 (1) Average -39.7 (1) -38.5 (1) -35.9 (1) Warm -39.7 (1) -38.5 (1) -35.9 (1) Maximum flow rate at 100 Pa ESP m³/h 350 450 550 Sound power level LWA dBA 48 49 54 Filters Dynamic airflow filter supply air (520 x 190 x 15 mm) Standard: ISO 16890 Coarse 65 % (= G4) Optional: ISO 16890 ePM1 55% (= F7) Dynamic airflow filter exhaust air (520 x 190 x 15 mm) Standard: ISO 16890 Coarse 65 % (= G4) Summer by-pass Fully (100% modulating) Frost protection Imbalance or optional external heater Fans EC fan with backward curved blades Automatic Calibration Yes (constant pressure) Constant flow regulation Yes Passive cooling Automatic passive cooling control Operation Integrated display Use via User controllers and CO2 or Humidity Sensors Sensors Integrated: pressure, temperature, onboard switch sensor External: CO2 (via optional Sensor), Humidity (via optional Sensor or measurement in ETA line), external Switch Sensor (voltage free input) (optional) Communication Standard: Duco RF, Duco Wired, Switch Sensor Expandable with Communication Print: Modbus, PWM-IN, PWM-OUT, Switch Sensor (3x), Ethernet, Micro SD-card slot Electrical Characteristics D350 D450 D550 Maximum electrical power 117 W (2 x 58.5 W) 196 W (2 x 98 W) 276 W (2 x 133.5 W) Power Supply 230 V, 50 Hz Via 3-core power cable with earthed plug Contacts 0-10 V in/output Type of motor DC Energy conversion efficiency At 350 m3/h: 84% At 307 m3/h: 85% At 255 m3/h: 86% At 450 m3/h: 81% At 418 m3/h: 82% At 377 m3/h: 83% At 550 m3/h: 78% At 515 m3/h: 79% At 471 m3/h: 80% (1) Manual control (no DCV) Technical specifications DucoBox Energy Comfort Plus D350-D450-D550 DucoBox Energy Comfort Plus DucoBox Energy Comfort Plus UK + G A+ G A+ With 2 or more sensors With 1 sensor/ manual/ clock
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