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Blauberg KOMFORT Roto EC S 281 R S21


Air handling unit with rotary heat exchanger. Maximum air flow up to 382 m³/h.
EAN codeEAN
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Designation key
  • Dimensions
  • Additional characteristics
  • Accessories
Description
Description
FEATURES

Air handling units for efficient supply and exhaust ventilation in flats, houses, cottages and other buildings. Heat recovery is provided by the rotary heat exchanger and minimizes ventilation heat losses. Controllable air exchange for creating the best suitable indoor microclimate.

HEATER

Units KOMFORT Roto EC SE are equipped with an electric heater.

  DESIGN

The unit casing is made of painted steel, internally filled with mineral wool layer for heat and sound insulation. The insulation is 40 mm thick. KOMFORT Roto EC S … L – left-handed unit. KOMFORT Roto EC S … R – right-handed unit.

AIR FILTRATION

Two built-in Coarse 90% (G4) filters provide efficient supply air filtration. Supply ePM1 65% (F7) filter available as an option.

     
KOMFORT Roto EC S … L   KOMFORT Roto EC S ... R
     
HEAT RECOVERY

The unit has a high-efficient rotary heat exchanger. The advantages of the rotary heat exchanger as compared to plate heat exchangers include no condensate generation, maintaining comfort air humidity and high freeze resistance.

CONTROL AND AUTOMATION

KOMFORT Roto EC S... S21 units are equipped with an integrated automation system. The remote control panel is not included in the delivery set (purchased separately). The S21 controller allows integrating the unit into the Smart Home system or BMS (Building Management System). The unit can be controlled via the Blauberg AHU mobile application via Wi-Fi.

Download the
Blauberg Home
app for Android

Download the
Blauberg Home
app for iOS

  AUTOMATION FUNCTIONS
Functions Description
Unit control via Wi-Fi using a mobile application +
Unit control via a wired remote control panel
S22 control panel (option)
Unit control via a wireless remote 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
Wi-Fi
Ethernet
MODBUS (RTU, TCP)
Blauberg Cloud Server service +
Speed selection +
Filter replacement indication by filter timer
Alarm indication +
Week-scheduled operation +
Bypass automatic
manual
Timer +
Boost mode +
Fireplace mode +
Freeze protection +
Cooler connection +
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 function is available when purchasing the appropriate accessory (see the "Accessories" tab).

Characteristics
Characteristics
Parameter KOMFORT Roto EC S 281 R S21 Measurement unit
Voltage 230 V
Frequency 50/60 Hz
Max. power without electric heater 176 W
Max. unit power 176 W
Max. unit current without electric heater 1.34 A
Max. unit current 1.34 A
Maximum air flow 382 m³/h
Sound pressure level at 3 m 28 dBА
Transported air temperature -25...+40 °С
Insulation 40 mm mineral wool mm
Extract filter G4 / Coarse > 60 % -
Supply filter G4 / Coarse > 60 % (option: F7 / ePM1 60 %) -
Heat recovery efficiency 89 %
EC motor yes -
Heat exchanger type Condensing -
Weight 67 kg
Connected air duct diameter 160 mm
Casing material painted steel -
SEC class A+ -
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
Name
S21 - user's manual (pdf 611.32Kb)
Modbus table for connecting S21 automation to BMS - user's manual (pdf 137.99Kb)
KOMFORT Roto EC S - data sheet (pdf 1.44Mb)
KOMFORT Roto EC S - image (png 469.42Kb)
KOMFORT Roto EC S - user's manual (pdf 4.4Mb)
Designation key
Designation key
Series Motor Casing type Casing modification Size (Nominal airflow / 10) Modification Heat exchanger type Unit version Control system
KOMFORT Roto EC: electronically commutated motor S: vertical _: w/o heater 28: 280 m³/h 1: by default _: Condensing rotor R: right version S21
Dimensions
Dimensions

Model Overall dimensions [mm]
Ø D H H1 L L1 W W1
KOMFORT Roto EC S 281 R S21 160 588 638 515 209 598 397
Additional characteristics
Additional characteristics


Sound power level,
A-weighted
Total Octave frequency band [Hz] LpA 3 m LpA 1 m
63 125 250 500 1000 2000 4000 8000
Point 1                      
LwA to environment [dBA] 49 31 39 38 36 38 37 35 28 28 38
Point 4                      
LwA to environment [dBA] 39 19 27 26 26 22 22 20 24 17 27
Accessories
Accessories
    KOMFORT Roto EC S 281
G4 panel filter FP 428x220x40 Coarse 90% G4
F7 panel filter FP 428x220x40 ePM1 60% F7
LCD control panel S25
Control panel S22
Wireless control panel S22 Wi-Fi
Internal humidity sensor FS2
Internal CO2 sensor CD-3
CO2 sensor with indication CD-1
Humidity sensor HR-S
Silencer SD 160
Air damper VKA 160
Electric actuator TF230
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