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VENTS VUT 230 V5 А3/A4

Heat recovery air handling units in sound- and heat-insulated casings. Air flow up to 230 m³/h. Heat recovery efficiency up to 98 %.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Designation key
  • Designation key
  • Video
  • The air-handling units are the fully featured ventilation units with heat recovery for air filtration, fresh air supply and stale air extract.
  • The extract air heat in the high-efficient plate heat exchanger is used for warming up of the supply air stream.
  • The units offer energy-efficient ventilation and heating solutions for cottages and flats and are compatible with round Ø 125 mm air ducts.
  • Supply and extract air flows are purified through G4 panel filters.
  • For extra supply air filtration a F8 filter is available as a specially ordered accessory.
  • The casing is made of 15-26 mm thick expanded polypropylene (EPP) sheets, possessing high heatand sound-insulating properties.
  • Single-phase three-speed external rotor motors with centrifugal impellers and forward curved blades.
  • The motors have overheating protection with automatic restart.
  • The VUT 230 V5 units are equipped with a counter-flow polystyrene heat exchanger.
  • In the cold season the extract air heat is transferred to the supply air stream which reduces ventilation-generated heat losses.  
  • This can lead to formation of condensate that is collected in a special drain pan and discharged into the sewage system.
  • In the warm season the outside air heat is transferred to the exhaust air stream.
  • This allows for a considerable reduction of the supply air temperature which, in its turn, reduces the air conditioning load.
  • The VUE 230 V5 units are equipped with a counter-flow heat exchanger with an enthalpy membrane at the core.
  • In the cold season the extract air heat and moisture are transferred to the supply air stream through the enthalpy membrane.
  • Heat recovery minimises heat losses from ventilation.
  • In the warm season the outdoor air heat and moisture are transferred to the exhaust air stream through the enthalpy membrane.
  • This enables considerable reduction of the supply air temperature and humidity which, in its turn, reduces the air conditioning load.
  • The unit is equipped with integrated control system. 
  • It can be supplied either with the mechanical threespeed speed controller P3-1-300 or the sensor threespeed speed controller SP3-1, power cable with mains plug.
  • The service side of the unit has a removable inspection door with hand screws to enable heat exchanger and filter cleaning and replacement.
  • The control unit is located inside of the unit casing.
  • The power cable and the ground cable are connected to the control unit via the cable glands on the side on the unit. 
  • The freeze protection is realized by means of shutdown the supply fan as follows: in case of freezing danger communicated by the temperature sensor the supply fan is turned off to let the heat exchanger defrosting with the extract air heat.
  • After freezing danger is no longer imminent, the unit reverts to the standard operation mode.
  • The units are designed for wall or floor mounting.
  • The access for unit and filter maintenance is available on the right and left side.
Parameter VENTS VUT 230 V5 A3/A4
Measurement unit
Frequency 50/60 Hz
Phase 1 ˜
Voltage 230 V
A 0.7 A
Maximum unit power 163 W
Sound pressure level at 3 m distance 35 dBА
Air capacity 230 m³/h
RPM 2720 min-1
Maximum transported air temperature -25…+50 °С
Heat recovery efficiency 87...98 %
Insulation EPP 15…26 mm -
Casing material expanded polypropylene -
Filter: extract G4 -
Filter: supply * option G4, F8 -
Connected air duct diameter 125 mm
Mass 13 kg
Heat exchanger type counter-flow -
Heat exchanger material polystyrol -
SEC Class B -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Brochure "VENTS VUT/VUE 230 V5" (pdf 1.42Mb)
Download image "VENTS VUT/VUE 230 V5 (ErP 2015, 2016)" for your website (png 477.61Kb)
Download high quality image "VENTS VUT/VUE 230 V5 (ErP 2015, 2016)" (psd 3.65Mb)
VENTS VUT 230 V5 А3/A4
Parameter Value Measurement unit
∅D 125 mm
B 590 mm
H 893 mm
L 316 mm
Sound power level, A – weighted Gen. Octave-frequency band [Hz] LpA, 3 m dBA LpA, 3 m dBA
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 82 64 67 71 81 77 79 75 67    
LWA to exhaust outlet dBA 70 51 64 62 68 60 60 50 42    
LWA to environment dBA 56 39 47 46 54 46 46 44 40 35 45

Calculation of air temperature downstream of the heat exchanger:

t = toutd + khr * (textr - toutd) / 100,

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

Designation key
Designation key
Series Rated air flow [m3 /h] Mounting features Casing design Control
VUT: ventilation with heat recovery
VUE: ventilation with energy recovery

V: vertical 

5: expanded polypropylene

А3: P3-1-300 speed controller
А4: SP3-1 sensor speed controller

Designation key
Designation key
Model G4 panel supply filter F8 panel supply filter Hydraulic U-trap
VUT 230 V5 А4 SF 264x182x18 G4 SF 264x182x18 F8 SH-32
VUE 230 V5 А4 -

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