User Guide for DUCO models including: D325, D400, D350, D450, D550, D325 Box Energy Comfort, D325, Box Energy Comfort, Energy Comfort, Comfort

DucoBox Energy Comfort (Plus)

16 abr 2025 — The DucoBox Energy Comfort Plus has been developed for application of balanced ventilation with heat recovery. With its various versions and adjustable ...


File Info : application/pdf, 6 Pages, 898.60KB

PDF preview unavailable. Download the PDF instead.

leaflet-DucoBox-Energy-Comfort-(Plus)-EU
EU
DucoBox Energy Comfort (Plus)
The SMARTEST MVHR system!

D325

D400

D350/D450/D550

High flow rates
Up to 550 m³/h at 200 Pa

100 % interchangeable

Left

Right

Auto-calibration
Save up to  30 per installation

We inspire at www.duco.eu

DucoBox Energy Comfort (Plus)
First choice for any situation in residential construction

The DucoBox Energy Comfort Plus has been developed for application of balanced ventilation with heat recovery. With its various versions and adjustable capacity of up to 550 m3/h, this smart and silent ventilation box is the solution for any situation in residential construction. The left/right exchange is 100 % software-based thanks to a patented principle of double bypass. The dynamic air distribution filters, together with the smart demand control based on CO2 and humidity, ensure exceptional efficiency.

Patented principle of double by-pass

L/R interchangeable 100% software-based

Smart 2-zone control with external valves

Dynamic Airflow Filters for maximum efficiency

Comfort Plus with acoustic casing = 10 dB quieter!

Low power consumption thanks to energy-efficient EC motors

Smart demand management based on CO2 and/or humidity measurement

MAXIMUM RELIEF FOR THE INSTALLER

Save time = Save money
Based on the principles of constant pressure calibration , autocalibration saves 50 % on adjustment time. This quickly means a saving of  30 on the installation cost for a standard calibration!
Want to save even more time and money? This is possible thanks to the handy copy function. By integrating a copy function into the software, it is possible to take over the settings within similar houses in serial construction. This results in an additional saving of  15 per installation.

Left/right interchangeable
This unit is very lowthreshold as physical interventions are not required. The left/right exchange is 100 % softwarebased thanks to the patented principle of double by-pass.
Compact external 2-zone
The external 2-zone valve controls on the basis of CO2 and provides ventilation only where and when needed. Thanks to the 70 % rule, the supply flow rate can be calculated up to 785 m3/h.

Duco Installation App
The new Duco Installation App ensures perfect calibration of the ventilation system. Moreover, you can use the app to create an official ventilation report in no time.

Acoustic damping
The acoustic casing ensures quieter operation of the system. The result? Extra attenuation up to 10 dB. Quiet and acoustic ventilation guaranteed.

TOTAL VENTILATION SOLUTION
Looking for a total ventilation solution? Then you prefer to focus on one single address. From ventilation boxes to vents. DUCO has everything you need for a healthy, comfortable and energy-efficient indoor climate. A wellfunctioning ventilation system preferably consists of a global installation with high-quality components.
SCAN & DISCOVER

DUCOBOX ENERGY COMFORT (PLUS) IN FIGURES

Physical characteristics

Width x Height x Depth (mm): Casing: Colours:
Connections: Condensate drain: Heat exchanger: Material of inside section: Weight: Power cable length: Mounting:

Comfort D325: 700 x 705 x 525 mm Comfort D400: 756 x 800 x 584 mm Comfort Plus D350/450/550: 760 x 803 x 584 mm
Coated sheet steel + EPP
Comfort D325/400: White + black Comfort (Plus) 350/450/550: White + green
Inner diameter D325: ^ 160 mm Inner diameter D400/350/450/550: ^ 180 mm
^ 32 mm (1 ¼") (2x)
V1: PP V2: PET/alu
EPP / PP / ABS
D325: 21 kg D400: 31 kg D350/450/550: 47 kg
2 m (from top of unit)
Wall mounting (standard) Optional floor mounting using support frame

Electrical characteristics

Electrical power:
Electrical power supply: Type of motor:
Efficiency:
Ref. Delegated Regulation (EU) n° 1253/2014

D325: 130 W (2 x 65 W) D400: 150 W (2 x 75 W) D350: 120 W (2 x 60 W) D450: 200 W (2 x 100 W) D550: 280 W (2 x 140 W)
230 V, 50 Hz via 3-core power cable with earthed plug
DC
D325: 89.0 % D400: 87.9 % D350: 88.9 % D450: 87.8 % D550: 84.7 %

D325 D400 D350 D450 D550

F
0000-4649 0000-4707 0000-4704 0000-4705 0000-4706

Miscellaneous characteristics

Energy class:
Filters:
Summer by-pass: Frost protection: Fans: Automatic calibration: Constant flow regulation: Passive cooling: Cold recovery: Operation:
Sensors:
Communication:

With 2 sensors (control factor 0.65): A+ Other: A
Dynamic airflow filter supply air Standard: Coarse 65% (= G4) Option: ePm1 55 % (= F7)
Dynamic airflow filter exhaust air Standard: Coarse 65 % (= G4)
Completely (100 % modulating)
Imbalance
EC fan with backward-curved blades
Yes (constant pressure)
Yes
Yes
Yes
Integrated display Use via user controls and room sensors
Integrated: pressure, temperature, onboard switch sensor External: CO2 (via optional room sensor), humidity (via optional sensor or measurement in ETA duct), external switch sensor (voltage-free input) (optional)
Standard: Duco RF, Duco Wired, Switch sensor Expandable with Duco Connectivity Board: connection possible via REST API (locally or via the cloud) or Modbus TCP

D325

Sound level Lw*

Flow rate Qv m³/h
Pressure Pa
supply dB(A) extraction dB(A) casing dB(A)

325 150 69.5 59.0 61.5 300 150 68.0 61.0 61.5 250 100 63.5 53.0 57.0 200 50 58.5 47.0 51.5

D400

Sound level Lw*

D350

Sound level Lw*

D450

Sound level Lw*

D550

Sound level Lw*

Flow rate Qv m³/h
Pressure Pa
supply dB(A) extraction dB(A) casing dB(A) Flow rate Qv m³/h Pressure
Pa supply dB(A) extraction dB(A) casing dB(A) Flow rate Qv m³/h Pressure
Pa supply dB(A) extraction dB(A) casing dB(A) Flow rate Qv m³/h Pressure
Pa supply dB(A) extraction dB(A) casing dB(A)

400 200 72.0 53.0 58.5 300 200 69.0 51.0 55.0 300 150 66.5 50.5 52.5 200 50 55.5 39.5 42.5

350 200 73.0 52.5 50.0 300 150 66.5 51.0 47.5 250 50 59.5 45.5 41.5 200 50 56.5 41.0 37.5

* Emission of casing measured according to ISO 3741:2010 Supply and extract air noise level according to ISO 5135:1997 (with duct correction)

450 200 78.5 55.0 54.5 300 200 69.0 52.0 49.0 350 150 70.5 51.0 49.0 300 50 63.5 47.5 44.0

550 200 79.5 58.5 58.5 500 200 76.5 57.0 56.5 450 100 73.5 53.0 53.5 400 100 71.5 51.5 51.0

SERVICE PLEASE!
STUDY SERVICE
Tailored advice
Thanks to years of know-how in the field of ventilation, DUCO's engineering department has all the expertise needed to offer the most suitable installation for your project. In addition to tailor-made advice, an installation plan for the ventilation ducts can be requested for each project. Please contact your trusted DUCO distributor or DUCO contact, or submit your project via the website:
www.duco.eu/yourproject
HELPDESK
Let yourself be guided
Your DUCO distributor is available to assist you with any practical challenge. If you need any support during design or installation, feel
free to consult them: their experts have been trained by DUCO.
info@duco.eu
DUCO CATALOGUE
Your guide to ventilation systems
Looking for a user-friendly tool to quickly and easily guide you through DUCO's demandcontrolled ventilation systems and their components? Then the DUCO Catalogue is the perfect solution. The most recent information accurately bundled in one document!
www.duco.eu/catalogue
We inspire at www.duco.eu

L2002866 Document last modified on 16.04.2025 (revision H)



References

Adobe PDF Library 17.0 Adobe InDesign 20.0 (Macintosh)