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Blauberg CIVIC EC DB 1000 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 1000 m³/h.
EAN codeEAN4058448071720
  • 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 DB 1000 S21 Measurement unit
Voltage 230 V
Phase 1 ˜
Frequency 50/60 Hz
Reheater power consumption - W
Max. unit current without electric heater 1.85 A
Max. unit current with electric heater 1.85 A
Preheater power consumption - W
RPM 2070 min-1
Maximum air flow 1000 m³/h
Max. unit power without an electric heater 260 W
Maximum air flow 278 l/s
Sound pressure level at a distance of 1 m 34 dBА
Sound pressure level at 3 m 24 dBА
Insulation 25 mm, cellular synthetic rubber mm
Transported air temperature -25...+40 °С
Extract filter G4 x 2 -
Supply filter G4x2 + (option: F7 x 2) -
Heat recovery efficiency 83...93* %
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 315 mm
Heating without heating -
Casing material polymer-coated steel -
Type Supply and exhaust -
SEC class A+ -
Weight 267 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)
S21 - user's manual (pdf 611.32Kb)
CIVIC EC DB 1000 - image (png 217.46Kb)
Modbus table for connecting S21 automation to BMS - user's manual (pdf 137.99Kb)
CIVIC EC DB 1000 S21 - Energy Label (pdf 91.89Kb)
CIVIC EC DB 1000 S21 - Specification (pdf 74.49Kb)
CIVIC EC DB 1000 - user's manual (pdf 10.56Mb)
Catalogue "Single-room ventilation for countries with hot and humid climates" (pdf 20.19Mb)
CIVIC FMM 1000 - installation instruction (pdf 1.46Mb)
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 DB 1000 S21
G4 filter FP 480x327x48 G4 2 pcs.
G4 filter FP 480x327x48 G4 2 pcs.
F7 filter FP 480x327x48 F7 2 pcs.
Outer grill VDA 315 CFn Al
Control panel S22
Wi-Fi control panel S22 Wi-Fi
LCD Control panel S25
 VOC sensor DPWQ30600
CO₂ sensor DPWQ40200
Humidity sensor DPWC11200
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 L L1 W W2 W3
CIVIC EC DB 1000 312 581 567 237 1202 1242 2327 421 601