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Blauberg Hybrid Max ERV

Decentralized unit for the small offices, facilities, classrooms and living spaces. Maximum air flow up to 160 m³/h.
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Automation functions
  • Dimensions
  • Sound power level
  • Energy labeling
  • Accessories

Efficient decentralized ventilation unit for small offices or conference rooms.Visible ceiling suspended installation.A version with electrical preheater is available for cold climate.Clean air due to the use of an ePM1 70% / F7 filter for supply air filtration.

Possibility to connect fresh air inlet and exhaust air ducts at top or back side of the unit.
Low noise operation from 16 dB(A) at 3m.High level of comfort due to builtin bypass and air dampers.


The casing is made of galvanized sheet metal with white painted decorative cover. The contemporary design of the Hybrid Max unit will seamlessly blend into any interior.The unit is heat- and sound-insulated with a 20 mm layer of foam. The service panel is easy to open for filter maintenance. The unit is equipped with two Ø125 mm spigots for fresh air intake and stale air exhaust. The position of the spigots can be changed from horizontal to vertical.

The Hybrid Max units are equipped with a bypass for ventilation (air cooling by the cool air from outside).


The Hybrid Max E S21 units are equipped with an electrical preheater to prevent heat exchanger freezing in the cold climate.


The Hybrid Max unit is equipped with two automatic air dampers, which close automatically when the unit is off to prevent drafts.

The Hybrid Max unit is equipped with a plate counter-flow polystyrene heat exchanger for heat recovery. The unit condensate is collected and drained to the drain pan under the heat exchanger.

The Hybrid Max E unit is equipped with an enthalpy plate counter-flow heat exchanger for energy (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 units feature high-performance, electronically commutated (EC), external rotor motors with forward curved blades. These state-of-the-art units offer excellent energy efficiency. In addition to that, EC motors combine high performance and optimum control over the entire speed range. EC motors have an excellent power efficiency (up to 90 %).


The Hybrid Max S21 units are equipped with an integrated 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 System).Unit control via Wi-Fi using the mobile application Blauberg AHU.

Download the Blauberg Home app for Android Download the Blauberg
Home app for iOS

The Hybrid Max S14 units are equipped with an integrated automation system and the S14 wall mounted sensor control panel with LED-indication.

Parameter 1 Speed 2 Speed 3 Speed Measurement unit
Voltage 230 230 230 V
Phase 1 1 1 ˜
Frequency 50/60 50/60 50/60 Hz
Integrated electric preheater power - - - W
Max. unit current with electric heater - - - A
Max. unit current without electric heater 0.5 0.5 0.5 A
RPM 2800 2800 2800 min-1
Max. unit power without an electric heater 58 58 58 W
Maximum air flow 60 90 160 m³/h
Sound pressure level LpA to environment at 1 m distance 25 35 42 dBА
Sound pressure level LpA to environment at 3 m distance 16 26 32 dBА
Heat recovery efficiency 74-89 74-89 74-89 %
Humidity recovery efficiency 47-60 47-60 47-60 %
Bypass yes yes yes -
Heat exchanger type counter-flow counter-flow counter-flow -
Heat exchanger material enthalpy enthalpy enthalpy -
Connected air duct diameter 125 125 125 mm
Weight 47 47 47 kg
Casing material aluzinc aluzinc aluzinc -
Type Supply and exhaust Supply and exhaust Supply and exhaust -
SEC class A A A -
Mounting ceiling mounting, wall mounting ceiling mounting, wall mounting ceiling mounting, wall mounting -
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
Hybrid Max - data sheet (pdf 2.16Mb)
Hybrid Max - image (png 203.91Kb)
Hybrid (Max) - user's manual (pdf 3.62Mb)
Catalogue "Single-room ventilation for countries with hot and humid climates" (pdf 20.19Mb)
Automation functions
Automation functions
Functions Hybrid Max S21 Hybrid Max S14
Unit control via Wi-Fi using a mobile application +
Unit control via a wired remote control panel
S22 control panel (option)
S14 control panel
Unit control via a wireless remote control panel
S22 Wi-Fi control panel (option)
Unit control via a remote wired LCD control panel
S25 control panel (option)
BMS (Building Management System) RS-485
Speed selection + +
Filter replacement indication by filter timer by filter timer
Alarm indication full alarm description in the mobile application
Week-scheduled operation +
Bypass automatic manual
Timer +
Boost mode +
Fireplace mode +
Freeze protection through cyclic stops of the supply fan through cyclic stops of the supply fan
through preheating (option)
Reheater connection option
Cooler connection option
Minimum supply air temperature control option
Humidity control option option
CO2 control option option
VOC control option option
PM2.5 control option option
Fire alarm sensor connection option

Sound power level
Sound power level
Sound power level,
Total Octave frequency bands [Hz] LpA 3 m LpA 1 m
200 250 315 400 500 630 800 1000 1250
LwA to environment at 160 m³/h 53 37 41 41 45 49 40 42 41 38 32 42
LwA to environment at 90 m³/h 46 31 37 43 36 35 33 34 33 30 26 35
LwA to environment at 60 m³/h 36 32 25 24 25 24 23 23 21 19 16 25


Sound power level,
Total Octave frequency bands [Hz] LpA 3 m LpA 1 m
1600 2000 2500 3150 4000 5000 6300 8000 10000
LwA to environment at 160 m³/h 53 37 37 35 31 27 23 21 24 25 32 42
LwA to environment at 90 m³/h 46 29 29 27 24 21 19 19 23 24 26 35
LwA to environment at 60 m³/h 36 18 18 19 17 17 18 19 23 24 16 25
Energy labeling
Energy labeling

Supplier model identifier and options installed

Hybrid Max (E) ERV
Reference climate Cold/Average/Warm
SEC in [kWh/(m²a)] for each type of climate -76.9/-40.2/-16.5
SEC Class A
Declared typology BVU
Type of drive installed Variable speed
Type of heat recovery Recuperative
Thermal efficiency* 78
Maximum flow rate in [m³/h] 160
Maximum electric power in [W] 58
Sound power level (LWA) in [dB(A)] 48
Reference flow rate [m³/s] 0.031
Reference pressure difference in [Pa] 0
SPI in [W/m³/h] 0.232
Control factor and typology Local demand control
Internet address http://www.ventilation-system.com/

*Efficiency according EN13141-7:2010 at reference flow rate

    Hybrid Max ERV S14 Hybrid Max ERV S21
G4 panel filter FP 233x175x22 G4 FP 233x175x22 G4
F7 panel filter FP 233x175x22 F7 FP 233x175x22 F7
Control panel - S22
Wireless control panel - S22 Wi-Fi
LCD control panel - S25
Humidity sensor FS2 FS2
Humidity sensor HR-S HR-S
Humidity sensor - DPWC11200
CO₂ sensor with indication CD-1 CD-1
CO₂ sensor CD-2 CD-2
CO₂ sensor CD-3 CD-3
CO₂ sensor - DPWQ40200
VOC sensor - DPWQ30600
Electric reheater ENH S21 V.2 ENH S21 V.2
Outer grille VDA 125 CFn Al VDA 125 CFn Al