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Northvent Freshbox 200 ERV WIFI


Heat recovery air handling units. Maximum air capacity up to 200 m³/h.


Efficient solution for supply and exhaust ventilation of enclosed spaces.EC fans with low energy consumption.Supply air cleaning is provided by the G4 and F8 filters. Additional air purification due to recirculation. H13 filter is available as an option.Upgradeable with an exhaust duct to provide air extraction from the bathroom.Easy installation.Compact size.Controlled by Android or iOS smartphone or tablet over Wi-Fi.
The units feature efficient electronically commutated (EC) motors with an external rotor and impellers with forward curved blades. These stateofthe-art motors are the most advanced solution in energy efficiency today.EC motors are characterised with high performance and optimum control across the entire speed range. In addition to that the efficiency of electronically commutated motors reaches very impressive levels of up to 90 %.
The casing is made of polymer coated steel plates.The front panel provides convenient access for filter maintenance and has a lock for extra security.Available modifications with an integrated preheater and reheater for cold climate applications.
The unit has two Ø100 mm pipes for fresh air intake and stale air extraction outside. The third Ø100 mm pipe (included in the scope of delivery) can be additionally fitted to the unit to connect the exhaust air duct from the bathroom.
The unit is equipped with supply and exhaust air dampers which activate automatically to prevent drafts while the unit is off. HEAT RECOVERY OPERATION MODE

  • The cold outdoor air passes through the filters and the heat exchanger and then is delivered to the serviced space by the supply centrifugal fan.
  • Warm stale air from indoors passes through the filter and the heat exchanger and is discharged outdoors by the centrifugal fan.
  • The supply and exhaust air flows are fully separated which helps eliminate the possibility of odour or microbial transfer between the streams.


  • The supply and exhaust air dampers are closed, the recirculation damper is open The room air circulates through the filters. Then it is returned back to the room purified.
Supply air cleaning is provided by the G4 and F8 filters. To meet more stringent air purity requirements the F8 filter can be replaced with an H13 Filter (purchased separately).Exhaust air is cleaned by the panel filter G4.
Freshbox E-200 ERV WiFi, Freshbox E2-200 ERV WiFi units are equipped with an electric pre-heater for freeze protection of the heat exchanger.
Freshbox E1-200 ERV WiFi, Freshbox E2-200 ERV WiFi units feature an electric re-heater to raise the supply air temperature as necessary.
The Freshbox 200 ERV WiFi features an exhaust air temperature sensor downstream of the heat exchanger which disables the supply fan to let the warm extract air warm up the heat exchanger. Then the supply fan is turned on and the unit reverts to normal operation.
Freeze protection for Freshbox E-200 ERV WiFi and Freshbox E2-200 ERV WiFi is implemented with an electric preheater.
The unit is equipped with a counter-flow energy recovery core with an enthalpy membrane at the core.

  • In the cold season the exhaust air heat and moisture are transferred to the supply air stream through the enthalpy membrane reducing the heat losses through ventilation.
  • Consequently, it is the intake air heat and moisture transferred to the extract air stream through the enthalpy membrane in the warm season. This allows for a considerable reduction of the supply air temperature and humidity which, in turn, reduces the air conditioning load.
The unit is equipped with a control panel.The remote control is supplied as standardWi-Fi communication.



Freshbox 200 WiFi
Freshbox E-200 WiFi
Freshbox E1-200 WiFi
Freshbox E2-200 WiFi
Speed selection
Filter replacement indication
Alarm indication
Speed setup
Week scheduler
Re-heater enabled/disabled
Supply air temperature setup
Control with the mobile application Android / iOS
Andrioid application
Northhvent Freshbox
iOS application
Northhvent Freshbox

1. Turning unit on/off
2. Speed selection
3. Increasing temperature set point for the re-heater (available for the models with a re-heater)
4. Turning re-heater on/off (available for the models with a re-heater)
5. Decreasing temperature set point for the re-heater (available for the models with a re-heater)
6. Turning timer on/off
7. Activation/deactivation of the scheduled operation mode


Each space requiring ventilation is equipped with one or several Freshbox 200 ERV WiFi units.
Can be upgraded with a bathroom exhaust air duct. To enable such a configuration the units can be additionally equipped with the optional ø100 mm spigot (supplied as standard).


Name Description
MS Freshbox 200 chrome Mounting kit:

  • Two Ø 100 mm air ducts, 500 mm long
  • Ventilation outer hood made of polished steel
  • Cardboard template
MS Freshbox 200 white Mounting kit:

  • Two Ø 100 mm air ducts, 500 mm long
  • Ventilation outer hood, painted white
  • Cardboard template
AH Freshbox 200 chrome  Ventilation outer hood made of polished steel
AH Freshbox 200 white Ventilation outer hood, painted white
FP 201x162x20 G4 Exhaust G4 cassette filter
FP 243x162x20 G4 Supply G4 cassette filter
FP 502х162х40 F7 Supply G4 cassette filter
FP 502x162x40 Н13 Supply HEPA H13 cassette filter
CD-1 CO2 sensor with indication
CD-2 CO2 Sensor

EcoDesign Parameters

Trade mark BLAUBERG
Model FRESHBOX 200 WiFi
Specific energy consumption (SEC), kWh/(m²/a) Cold Average Warm
-70.5 А+ -35.9 А -13.5 Е
Type of ventilation unit Bidirectional
Type of drive installed Variable speed
Type of heat recovery system Recuperative
Thermal efficiency of heat recovery, % 68
Maximum flow rate, m³/h 200
Electric power input, W 125
Sound power level, dBA 39
Reference flow rate, m³/s 0.039
Reference pressure difference, Pa N/A
Specific power input (SPI), W/(m³/h) 0.366
Control typology Local demand control
Maximum internal leakage rates, % 0.1
Maximum external leakage rates, % 0.9
Mixing rate of bidirectional units, % 20
Airflow sensitivity at +20 Pa and -20 Pa 0.93
The indoor/outdoor air tightness, m³/h 7
Internet address
The annual electricity consumption (AEC), kWh electricity/a Cold Average Warm
795 258 213
The annual heating saved (AHS), kWh primary energy/a  Cold Average Warm
8161 4172 1886

Designation Key

Model Heater Nominal air flow [m³/h] Heat exchanger type Control
Freshbox _: no heater
Е: preheating
Е1: post-heating
Е2: preheating + post-heating
200 _: standard type
ERV: enthalpy type
WiFi: Sensor control panel and Wi-Fi communication


Parameter Freshbox 200 ERV WiFi
Speed 1
Freshbox 200 ERV WiFi
Speed 2
Freshbox 200 ERV WiFi
Speed 3
Freshbox 200 ERV WiFi
Speed 4
Freshbox 200 ERV WiFi
Speed 5
Measurement unit
Phase 1 1 1 1 1 ˜
Voltage 230 230 230 230 230 V
Max. current consumption with heater(s) 1.0 1.0 1.0 1.0 1.0 A
Frequency 50/60 50/60 50/60 50/60 50/60 Hz
Max. power without electric heater 10 15 25 44 134 W
Preheater power consumption W
RPM 2000 2000 2000 2000 2000 min-1
Air capacity 8 17 25 33 56 l/s
Reheater power consumption W
Air capacity 30 60 90 120 200 m³/h
Sound pressure level at 3 m in accordance with ISO 3741:2004 12 22 30 36 45 dBА
Temperature of transported air -15…+40 -15…+40 -15…+40 -15…+40 -15…+40 °С
Extract filter G4 G4 G4 G4 G4
Supply filter G4 + F7 (Option: H13) G4 + F7 (Option: H13) G4 + F7 (Option: H13) G4 + F7 (Option: H13) G4 + F7 (Option: H13)
Insulation thikness 30 30 30 30 30 mm
Heat recovery efficiency 85 81 75 68 66 %
Weight 55 55 55 55 55 kg
Heat exchanger type counter-flow counter-flow counter-flow counter-flow counter-flow
Heat exchanger material enthalpic membrane enthalpic membrane enthalpic membrane enthalpic membrane enthalpic membrane
Connected air duct diameter 100 100 100 100 100 mm
Casing material polymer coated steel polymer coated steel polymer coated steel polymer coated steel polymer coated steel
SEC class A A A A A



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