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Blauberg CIVIC EC DBE2 300 S21

The CIVIC EC DB units are designed for single-room ventilation of schools, offices and other public and commercial premises. Air flow up to 300 m³/h.
EAN codeEAN4058448071263
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Designation key
  • Accessories
  • Dimensions
  • BIM

The CIVIC EC DB units are designed for single-room ventilation of schools, offices and other public and commercial premises. Offer the ideal simple and efficient ventilation solutions for existing and renovated buildings and require no layout of air ducts.

Efficient supply and extract ventilation for separate premises.EC motors with low energy consumption.Low-noise operation.Simple mounting.


Made of high-quality polymer coated steel, internally lined with heat- and sound insulation of mineral wool or other materials.Available modifications with an integrated preheater and reheater for cold climate applications.

High efficient electronically commutated motors with external motor and impeller with forward curved blades. Such motors are the most state-of-the-art energy saving solution.EC motors are featured with high performance and total speed controllable range. High efficiency reaching 90 % is the premium advantage of the electronically commutated motors.


Supply and extract air is purified by a set of panel filters. Filtering class and component parts depend on the size of a unit.Panel G4 filter is used for extract air filtration.


The units are equipped with a bypass. The bypass damper opens for free cooling ventilation mode in summer.

The CIVIC EC DB S21 units are equipped with an integrated automation system.The S21 controller allows integrating the unit into the BMS (Building Management System).
The unit can be controlled by the Blauberg AHU mobile application via Wi-Fi.

the Blauberg AHU
app for Android
the Blauberg AHU
app for iOS

The automatic supply and extract air dampers are used to prevent uncontrollable air draughts during the unit standstill.



CIVIC EC DBE and CIVIC EC DBE2 units are equipped with an electric preheater which protects the heat exchanger from freezing.


CIVIC EC DBE2 units feature an electric reheater to raise the supply air temperature.


The CIVIC EC DB unit has a counter-flow heat exchanger made of polystyrene.

In cold season the heat energy of the extract air flow is absorbed by intake air flow, thus decreasing the heat losses caused by ventilation. Condensate generated during heat recovery is collected in a drain pan and removed through the drain pipes to the sewage system.

In warm season the heat of the outdoor air is absorbed by extract air flow. This way the supply air temperature decreases and heat recovery reduces operation loads for the air conditioner.



Unit control via Wi-Fi using the mobile application +
Unit control via remote control panel
S22 control panel (option)
Unit control via remote wireless control panel
S22 Wi-Fi control panel (option)
Unit control via a wired remote LCD control panel
S25 control panel (option)
BMS (Building Management System)  RS-485
Blauberg Cloud Server service +
Speed switch +
Filter replacement indication by filter timer
Alarm indication full alarm description in the mobile application
Week scheduled operation +
Bypass automatic
Timer +
Boost mode +
Fireplace mode +
Freeze protection using cyclical stops of the supply fan
using preheating (option)
Reheater connection option
Cooler connection option
Minimum supply air temperature control +
Humidity control option
CO₂ control option
VOC control option
PM2.5 control option
Fire alarm sensor connection option
Option: the functionality is available when purchasing the appropriate accessory (seethe "Accessories" section)

Cold outside air flows through the filters and heat exchanger and is moved to the room with a supply centrifugal fan.Warm polluted air from the premise flows through the filter and the heat exchanger and is exhausted outside with an extract centrifugal fan.

Parameter CIVIC EC DBE2 300 S21 Measurement unit
Voltage 230 V
Phase 1 ˜
Frequency 50/60 Hz
Reheater power consumption 1400 W
Max. unit current without electric heater 1.3 A
Max. unit current with electric heater 13.6 A
Preheater power consumption 1050 W
RPM 2150 min-1
Maximum air flow 83 l/s
Maximum air flow 300 m³/h
Max. unit power without an electric heater 125 W
Sound pressure level at a distance of 1 m 33 dBА
Sound pressure level at 3 m 23 dBА
Transported air temperature -25...+40 °С
Insulation 25 mm, cellular synthetic rubber mm
Extract filter G4 -
Supply filter G4, F8 (option F8 C + H11) -
Heat recovery efficiency 76...88* %
EC motor yes -
Remote control panel Sensor, LCD -
Heat exchanger type counter-flow -
Functions Filter replacement indication, Timer, Weekly schedule, External sensor connection -
Heat exchanger material polystyrene -
Connected air duct diameter 200 mm
Heating electric preheating, electric reheating -
Casing material polymer-coated steel -
Type Supply and exhaust -
SEC class A -
Weight 80 kg
Mounting ceiling mounting -
* Heat recovery efficiency is specified in compliance with EN 13141-8 -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air capacity:
  • Pressure:
Operating point
  • Air capacity: --
  • Pressure: ---
Documents archieve
Documents archieve
Select a document type
  • Catalogues
  • Technical documentation
  • Certificates
CIVIC EC DB - data sheet (pdf 1.36Mb)
CIVIC EC DB - user's manual (pdf 9.63Mb)
CIVIC EC DB - image (png 224.6Kb)
S21 - user's manual (pdf 611.32Kb)
Modbus table for connecting S21 automation to BMS - user's manual (pdf 137.99Kb)
CIVIC EC DBE2 300 S21 - Energy Label (pdf 92.47Kb)
CIVIC EC DBE2 300 S21 - Specification (pdf 74.51Kb)
Catalogue "Single-room ventilation for countries with hot and humid climates" (pdf 20.19Mb)
Designation key
Designation key
Model Motor type Mounting Bypass Heater Drain pump* Rated air flow [m³/h] Control
CIVIC EC: synchronous electronically commutated motor D: Suspended mounting, horizontally oriented spigots;
D1: Suspended mounting, vertically oriented spigots
B: with bypass

_: without heater
E: preheating
E2: preheating + reheating

_: without drain pump
with drain pump

300; 500; 1000 S21

* The CIVIC EC DB... 1000 S21 units are equipped with a drain pump by default.

  CIVIC EC DBE2 300 S21
G4 filter FP 270x216x48 G4
G4 filter FP 270x216x48 G4
F8 filter FP 270x218x48 F8
 F8 carbon filter FP 518x270x48 F8 C
H11 HEPA filter FP 518x270x48 H11
Outer grill VDA 200 CFn Аl
Control panel S22
Wi-Fi control panel S22 Wi-Fi
LCD Control panel S25
 VOC sensor DPWQ30600
CO₂ sensor DPWQ40200
Humidity sensor DPWС11200
CO₂ sensor with indication CD-1
CO₂ sensor CD-2
Internal humidity sensor FS2
Humidity sensor HR-S
Syphon kit  SFK 20x32
Drain pump CP-2


Model Dimensions [mm]
D H H1 H2 H3 L L1 W W1 W2
CIVIC EC DBE2 300 199 333 347 145 188 818 873 1547 1155 196