Blauberg KOMFORT Roto EC S 281-E L S21

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Air handling unit with rotary heat exchanger. Maximum air flow up to 382 m³/h.

EAN

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Description
Characteristics
Capacity diagram
Downloads
Designation key
Dimensions
Additional characteristics
Accessories

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

Parameter	KOMFORT Roto EC S 281-E L S21	Measurement unit
Voltage	230	V
Frequency	50/60	Hz
Max. power without electric heater	179	W
Max. unit power	179	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	26	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	86	%
EC motor	yes	-
Heat exchanger type	Sorption	-
Weight	57	kg
Connected air duct diameter	160	mm
Casing material	painted steel	-
SEC class	A+	-

Capacity diagram

Selection method:
Air capacity:
Pressure:

Operating point

Air capacity: --
Pressure: ---

Documents archieve

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	-E: Sorption rotor	L: left version	S21

Dimensions

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

Additional characteristics

Sound power level, A-weighted	Total	Octave frequency band [Hz]								LpA 3 m	LpA 1 m
Sound power level, A-weighted	Total	63	125	250	500	1000	2000	4000	8000	LpA 3 m	LpA 1 m
Point 1
L_wA to supply inlet [dBA]	67	43	46	49	53	58	54	50	51	47	56
L_wA to supply outlet [dBA]	70	45	48	52	56	61	57	53	54	49	59
L_wA to exhaust inlet [dBA]	50	29	32	36	40	41	32	28	26	29	39
L_wA to exhaust outlet [dBA]	48	28	30	34	38	39	30	27	25	28	37
L_wA to environment [dBA]	54	30	38	37	41	44	42	38	34	33	43
Point 4
L_wA to supply inlet [dBA]	63	38	41	45	49	54	48	45	46	43	52
L_wA to supply outlet [dBA]	65	40	43	47	52	57	51	47	48	44	54
L_wA to exhaust inlet [dBA]	46	24	27	31	34	37	26	23	24	25	35
L_wA to exhaust outlet [dBA]	48	25	28	33	36	39	27	24	25	26	37
L_wA to environment [dBA]	47	24	32	31	34	41	33	30	26	26	36

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