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Blauberg KOMFORT EC S5B270-E S21


Heat and energy recovery air handling unit. Maximum air flow up to 300 m³/h.
EAN codeEAN4058448051210
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Designation key
  • Accessories
  • Dimensions
  • Additional characteristics
Description
Description
FEATURES  

Air handling units for efficient supply and exhaust ventilation in flats, houses, cottages and other buildings.Heat recovery minimizes ventilation heat losses during cold season and reduces air conditioner load during hot season.Controllable air exchange provides the best indoor microclimate.Compatible with round Ø 125 mm air ducts.

DESIGN

The casing is made of expanded polypropylene (EPP) plates, 15–26 mm thick, possessing high heat- and sound-insulating properties.The unit is equipped with service panels for convenient maintenance of filters and heat exchanger.The spigots are located at the top of the unit and are rubber sealed for airtight connection to the air ducts.

FANS AIR FILTRATION

High-efficient external rotor EC motors and centrifugal impellers with backward curved blades are used for air supply and exhaust.EC motors have the best power consumption to air flow ratio and meet the latest demands concerning energy saving and high-efficient ventilation.EC motors are featured with high performance, low noise level and totally controllable speed range.Dynamically balanced impellers.

The built-in G4 supply filter and G4 extract filter provide air filtration.The F8 supply filter (specially ordered accessory) may be used for efficient supply air filtration.

BYPASS

The KOMFORT EC S5B270(-E) models are equipped with a bypass which can be opened to cool down the ventilated area with cool itake air, if required.

HEAT RECOVERY MOUNTING

The KOMFORT EC S5(B)270 unit is equipped with a plate counter-flow polystyrene heat exchanger for heat recovery. In the unit condensate is collected and drained to the drain pan under the heat exchanger.The KOMFORT EC S5(B)270-E unit is equipped with an enthalpy plate counter-flow heat exchanger for enegry (heat and humidity) recovery. Due to humidity recovery condensate is not generated in the enthalpy heat exchanger.The air flows are completely separated in the heat exchanger. Thus smells and contaminants are not transferred from the extract air to the supply air.Heat recovery is based on heat and/or humidity transfer through the heat exchanger plates. In the cold season supply air is heated in the heat exchanger by transferring the heat energy of warm and humid extract air to the cold fresh air. Heat recovery minimizes ventilation heat losses and heating costs respectively.In the warm season the heat exchanger performs reverse and intake air is cooled in the heat exchanger by the cool extract air. That reduces operation load on air conditioners and saves electricity.

The ventilation units are designed for wall and floor mounting.Due to universal casing design both left and right mounting is possible.

CONTROL AND AUTOMATION

The KOMFORT EC S5B270(-E) S21 units are equipped with a build-in automation system. The remote control panel is not included in the delivery set (sold separately). The S21 controller allows integrating the unit into the Smart Home system or BMS (Building Management Systems). Unit control via Wi-Fi using the mobile application Blauberg AHU.

Download
the Blauberg AHU
app for Android

Download
the Blauberg AHU
app for iOS

The KOMFORT EC S5B270 (-E) S14 units are equipped with an integrated automation system and the S14 wall mounted sensor control panel with LED-indication. The KOMFORT EC S5 270 (-E) S2 units are equipped with the CDT E/0–10 speed controller.

AUTOMATION FUNCTIONS  
Functions KOMFORT EC S5B270(-E) S21 KOMFORT EC S5B270(-E) S14 KOMFORT EC S5 270(-E) S2
Unit control via Wi-Fi using the mobile application +
Unit control via remote control panel
S22 control panel (option)
S14 control panel
CDT E/0-10 speed controller
Unit control via remote wireless control panel
S22 WiFi control panel (option)
Unit control via a wired remote LCD control panel
S25 control panel (option)
BMS (Building Management Systems) RS-485
Wi-Fi
Ethernet
MODBUS (RTU, TCP)
Blauberg Cloud Server service +
Speed switch + + +
Filter replacement indication according to filter timer according to filter timer
Alarm indication full description of the alarm in the mobile application LED indication about alarms
Week scheduled operation +
Bypass automatic
manual manual
Timer +
Boost mode +
Fireplace mode +
Freeze protection using cyclical stops of the supply fan using cyclical stops of the supply fan using cyclical stops of the supply fan
using preheating (option)
Reheater connection option
Cooler connection option
Minimum supply air temperature control +
Humidity control option option
CO2 control option option
VOC control option
PM2.5 control option
Fire alarm sensor connection option option
option: the functionality is available when purchasing the appropriate accessory (see the "Accessories" section)
Characteristics
Characteristics
Parameter KOMFORT EC S5B270-E S21 Measurement unit
Bypass yes -
Voltage 230 V
Phase 1 ˜
Frequency 50/60 Hz
Power 162 W
RPM 3200 min-1
Total unit current 1.2 A
Air capacity 300 m³/h
Air capacity 83 l/s
Sound pressure level at 3 m distance 34 dBА
Temperature of transported air -25…+40 °С
Insulating material 15-26 mm, EPP mm
Extract filter G4 -
Supply filter G4 (Option: F8) -
Heat recovery efficiency 72–94 %
Heat exchanger type counter-flow -
Heat exchanger material enthalpy -
Connected air duct diameter 125 mm
Weight 13.5 kg
Casing material EPP -
Type Supply and exhaust -
SEC class A -
Mounting wall mounting , floor mounting -
ErP 2016, 2018 -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air capacity:
  • Pressure:
Operating point
  • Air capacity: --
  • Pressure: ---
Documents archieve
Documents archieve
Name
KOMFORT EC S5(B)270(-E) - data sheet (pdf 1.15Mb)
KOMFORT EC S5(B)270(-E) - operation manual (pdf 2.66Mb)
KOMFORT EC S5(B)270(-E) S21 - image (png 449.84Kb)
KOMFORT EC S5B270-E S21 - energy label (pdf 94.07Kb)
KOMFORT EC S5B270-E S21 - specification (pdf 74.12Kb)
Designation key
Designation key
Series Motor type Spigot orientation Casing modification Bypass Nominal air flow [m³/h] Heat exchanger type Control
KOMFORT EC: electronically commutated motor S: vertical spigot orientation 5: EPP _: without a bypass

B: integrated bypass
270 _: heat recovery

–E: energy recovery
S21

S14

S2
Accessories
Accessories
    KOMFORT EC S5B270(-E) S21 KOMFORT EC S5B270(-E) S14 KOMFORT EC S5 270(-E) S2
G4 panel filter FP 264x182x18 G4 FP 264x182x18 G4 FP 264x182x18 G4
F8 panel filter FP 264x182x18 F8 FP 264x182x18 F8 FP 264x182x18 F8
Control panel S22
Wi-Fi control panel S22 Wi-Fi
LCD control panel S25
Internal humidity sensor FS2 FS2
Humidity sensor HR-S HR-S
CO2 sensor with indication CD-1 CD-1
CO2 sensor CD-2 CD-2
VOC sensor DPWQ30600
CO2 sensor DPWQ40200
Humidity sensor DPWC11200
Electric preheater EVH 125
Electric reheater ENH 125
Syphon kit (for the units without an enthalpy heat exchanger) SFK 20x32 SFK 20x32 SFK 20x32
Air damper VKA 125 VKA 125
Electric actuator LF230 LF230
Dimensions
Dimensions

Model Overall dimensions [mm]
Ø D B H H1 L
KOMFORT EC S5B270-E S21 125 590 852 893 316
Additional characteristics
Additional characteristics
Point Unit power [W] Sound pressure level at 3 m (1 m) [dBA]
1 153 34 (44)
2 150 34 (44)
3 142 33 (43)
4 62 30 (40)
5 60 29 (39)
6 59 28 (38)
7 17 27 (37)
8 17 23 (33)
9 16 23 (33)

 

Sound power level, A-weighted Total Octave frequency band [Hz] LpA 3 m [dBA] LpA 1 m [dBA]
63 125 250 500 1000 2000 4000 8000
LwA to supply inlet [dBA] 82 65 63 65 80 74 74 68 64    
LwA to supply outlet [dBA] 66 60 56 55 63 58 49 40 33    
LwA to exhaust inlet [dBA] 85 64 67 71 81 77 79 75 67    
LwA to exhaust outlet [dBA] 71 51 64 62 68 60 60 50 42    
LwA to environment [dBA] 55 37 45 44 53 43 43 40 38 34 44

* Data provided for point 1 of the air flow diagram

 

BRE

Exhaust spigot configuration Air flow rate [l/s] Specific fan power [W/l/s] Heat exchange efficiency [%]
Kitchen + 1 additional wet room 21 0.73 85
Kitchen + 2 additional wet rooms 29 0.86 84
Kitchen + 3 additional wet rooms 37 1.08 82
Kitchen + 4 additional wet rooms 45 1.39 81

 

Calculation of air temperature downstream of the heat exchanger:
t = toutd + khr × (textr - toutd) / 100,

where toutd – outdoor air temperature [°C] textr – extract air temperature [°C] khr – heat exchanger efficiency (according to the diagram) [%]

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