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Blauberg BLAUBOX MW 3200-4 Pro

Supply ventilation unit. Maximum air flow up to 3250 m³/h.
EAN codeEAN4058448037399
  • Description
  • Characteristics
  • Downloads
  • Designation key
  • Accessories
  • Overall dimensions
  • Additional diagrams

Ventilation units for efficient supply ventilation in various premises.Controllable air supply, heating and filtration.Compatible with 400x200 up to 800x500 mm rectangular air ducts.


The casing is made of double-skinned aluzinc panels, internally filled with 25 mm mineral wool layer for heat and sound insulation.The casing has fixing brackets with vibration absorbing connectors for easy installation.The hinged casing side panel ensures easy access to the internals for cleaning, filter replacement and other maintenance operations.



Asynchronous external rotor motor and centrifugal double-intake impeller with forward curved blades is used for air supply.Single- or three-phase motor modification depending on the fan model type.Integrated motor overheating protection with automatic restart.Dynamically balanced impeller.Equipped with ball bearings for longer service life.Reliable and quiet operation.


The units are equipped with a water (glycol) heater for operation during cold seasons at low outside temperature.The air temperature sensor downstream of the water heater and the return heat medium sensor ensure freezing protection of the water heater. If any of these sensors detects a temperature point below the set minimum value, the signal is sent automatically to the control unit to troubleshoot cooling.


The built-in G4 supply filter provides air filtration.


The unit is suitable for mounting on the floor, ceiling mounting or wall mounting with fixing brackets in any mounting position except for the vertical one with air flow downwards.The correct mounted unit must provide free access to the hinged panel for servicing and filter replacement.


The units incorporate an integrated control system with a wall-mounted control panel and LCD display.The standard delivery set includes a 10 m cable for connection of the unit and the control panel.Control panel functions:

  • Activating/deactivating the unit.
  • Setting low, medium and high speeds for the supply fan. Air flow control.
  • The models with a water mixing unit have the function of setting and maintaining the supply air temperature by means of controlling the heat medium control valve.
Automation functions:
  • Supply air temperature control by means of controlling the heat medium control valve.
  • Control of the supply air damper actuator (separate order).
  • Control of the external circulation pump on the heat medium feed line.
  • Regulation of heat medium flow in the water heater in case of the differential pressure of the return heat medium below 40 kPa.
  • Water heater freezing protection with the mixing unit and the circulation pump.
  • Control of the cooler with respect to the set indoor air temperature (separate order).
  • Supply fan control.
  • Supply filter clogging control.
  • Shutdown of the unit on signal from the fire alarm panel.
Parameter BLAUBOX MW 3200-4 Pro Measurement unit
Connected air duct size 600х350 mm
Voltage 400 (Y) V
Phase 3 ˜
Frequency 50 Hz
Current 2.3 A
RPM 1200 min-1
Maximum air flow 3250 m³/h
Maximum air flow 903 l/s
Number of water coil rows 4 -
Total unit power 1270 W
Sound pressure level at 3 m 53 dBА
Transported air temperature -40...+45 °С
Insulation 25 mm mineral wool mm
Supply filter G4 -
EC motor no -
Weight 73.1 kg
Casing material aluzinc -
Outdoor mounting no -
Sound-insulated casing yes -
Air duct for rectangular air ducts -
Design centrifugal -
Type Supply -
Mounting ceiling mounting, wall mounting, floor mounting -
ErP 2016, 2018 -
Documents archieve
Documents archieve
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  • Catalogues
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BLAUBOX MW Pro - data sheet (pdf 942.04Kb)
BLAUBOX MW Pro - image (png 725.62Kb)
Control system for units based on Freemax controllers and AC208A2 sensor control panels - user’s manual (pdf 6.61Mb)
Designation key
Designation key
Series Casing modification Heater type Rated air flow [m³/h]   Number of water coil rows Control
BLAUBOX M: single-block unit W: water heater 750; 1200; 1800; 2100; 3000; 3200; 6500 4 Pro: with control panel
    BLAUBOX MW 3200-4 Pro
G4 panel filter FP 653x440x47 G4
Silencer SD 60x35
Duct cooling unit KFK 60x35-3
Duct cooling unit KWK 60x35-3
Water mixing unit WMG
Air flow dampers SL 60x35
Flexible anti-vibration connector EVA 60x35
Air damper electric actuator LF230
Air damper electric actuator TF230
Overall dimensions
Overall dimensions

Model Overall dimensions [mm]
B3 B B2 H1 H L
BLAUBOX MW 3200-4 Pro 600 710 1000 350 530 1000
Additional diagrams
Additional diagrams

The air flow is 2400 m³/h and the air speed in the cooling unit is 3.61 m/s ➀.To calculate the maximum air temperature find the intersection point of the air flow line ➀ with the rated outer temperature shown in blue line (e.g., -20 °C) and draw the line ➁ to the left until it crosses the water in/out temperature curve (e.g. +70/+50). From this point draw a vertical line to the supply air temperature downstream of the heater (+30 °C) ➂.To calculate the heater power find the intersection point of the air flow ➀ with the rated winter temperature shown in red line (e.g., -20 °C) and draw the line ➃ to the right until it crosses the water in/out temperature curve (e.g. +70/+50). From this point draw a vertical line to the heater power axis (50.0 kW) ➄.
To calculate the required water flow in the heater prolong this line ➅ downwards to the water flow axis (0.62 l/s).To calculate the water pressure drop in the heater find the intersection point of the line ➅ with the pressure loss curve and prolong the line ➆ to the right on the water pressure drop axis (15.0 kPa).

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