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Floor-mounted single-room air handling unit with air flow up to 1240 m³/h in a heat and sound-insulated casing. Heat recovery efficiency up to 96 %.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Accessories
  • The DVUT HB EC and DVUE HB EC air handling units are intended for single-room ventilation of schools, offices and other public and commercial spaces.
  • These air handling units do not require a duct system and provide a simple yet efficient ventilation solution for newly built and renovated spaces.
  • Efficient supply and exhaust ventilation of individual spaces.
  • Modification with an electric preheater or reheater available.
  • Modification with an enthalpy membrane heat exchanger available.
  • Low-energy EC fans.
  • Low noise operation (25-35 dBA).
  • Simple installation.
  • Contemporary design.
  • Warm, stale indoor air passes through the filter and the heat exchanger and is then extracted outdoors through the wall duct by the centrifugal extract fan. Cold outdoor air passes through the filters and the heat exchanger and then is supplied by means of the centrifugal supply fan.
  • The heat of extracted air is transferred to supply air by means of the heat exchanger, providing comfortable fresh air temperature and reducing costs for its heating.
  • The casing is made from high-quality polymercoated steel with internal heat and sound insulation made of mineral wool from 40 to 80 mm in thickness.
  • The contemporary design helps the units blend in nicely with a wide variety of interiors.
  • Supply and exhaust dampers are closed automatically while the unit is off to prevent drafts.
  • Filtering class depends on standard sizes and is specified in the table with characteristics.

  • The units feature high-performance, electronically commutated (EC), external rotor motors with forward curved blades. These state-of-theart 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 DVUT HBE EC and DVUT HBE2 EC units are equipped with an electric preheater to prevent heat exchanger freezing.
  • The DVUT HBE2 EC units are equipped with electric reheaters to raise the supply air temperature.
  • The units are equipped with a bypass for summer ventilation.
  • The DVUT units feature a counter-flow heat exchanger made of polystyrene.
  • The heat of the extract air is transferred to the supply air via the heat exchanger which greatly helps reduce ventilation 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 outdoor air heat is transferred to extract air. This enables considerable reduction of the supply air temperature which reduces the air conditioning load.

  • The DVUE units are equipped with a counter-flow enthalpy heat exchanger.
  • 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 extract air stream through the enthalpy membrane. This enables considerable reduction of the supply air temperature and humidity, which reduces the air conditioning load.


Freeze protection

  • There are two methods of protecting the heat exchanger against freezing in cold conditions.
  • In units without an electric preheater the supply fan is shut down automatically, using the feedback from the extract air temperature sensor, to let the warm extract air thaw the heat exchanger. The supply fan then re-activates and the unit reverts to normal operation.
  • In units with an electric preheater the supply air is warmed up before entering the heat exchanger which prevents freezing. This method ensures a continuous balanced air exchange.


  • The units DVUT/DVUE HB EC A21 are equipped with an in-built control system. An A21 controller allows integrating the unit into the Smart Home system or BMS (Building Management Systems). Remote control panel is not included in the delivery set and is available as specially ordered accessory. The unit is controlled via Wi-Fi by means of the VENTS AHU mobile application that must be downloaded.
Function А21 А14
Wired remote control panel Option (A22)
Wired remote LCD control panel Option (A25)
Wireless remote control panel Option (A22 Wi-Fi)
BMS RS-485
Vents Cloud Server + -
Control by a mobile application via Wi-Fi + -
Freeze protection + +
Bypass control Auto + manual Manual
Weekly schedule operation + -
Filter maintenance warning According to filter timer According to filter timer
According to pressure switch of filter clogging
Alarm indication + +
Speed selection + +
Timer + -
RH% sensor Option Option
CO2 sensor Option Option
VOC sensor Option Option
PM2.5 sensor Option Option
Boost mode + -
Fireplace mode + -
Preheating Option -
Reheating Option -
Cooler connection Option -
Fire alarm sensor connection Option Option
Supply air temperature control + -
Parameter DVUT 1200 HB EC
Measurement unit
Phase 1 ˜
Voltage 230 V
Frequency 50/60 Hz
Max. unit current without electric heater 1.6 A
Air capacity 1240 m³/h
RPM 3630 min-1
Max. unit power without electric heater 350 W
Heat recovery efficiency 84...96 %
Transported air temperature -25 ... +40 °С
Sound pressure level at 1 m distance 34 dBА
Sound pressure level at 3 m distance 24 dBА
Functions Filter replacement indication, Timer, Weekly schedule, External sensor connection -
Casing material painted steel -
Remote control panel LCD, Sensor -
Heating without heating -
Insulation 40 mm mineral wool -
Filter: extract G4 -
Filter: supply G4 (F7*) -
Weight 394 kg
Heat exchanger type counter-flow -
Heat exchanger material polystyrene -
SEC Class A+ -
Mounting floor mounting -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
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  • Advertising and printing products
  • Certificates
  • Technical documentation
Software "Setting air handling units with automation A14 and A15" (rar 17.47Mb)
"Single-room ventilation for schools and public spaces" catalog 2022 (pdf 5.1Mb)
Download high quality image "DVUT HB EC and DVUE HB EC" (psd 1.72Mb)
Download image "DVUT HB EC and DVUE HB EC" for your website (png 248.93Kb)
"DVUT HB EC and DVUE HB EC" user's manual 11-2022 (V142EN-07) (pdf 9.2Mb)
"Sensor control panel A14/A15" user’s manual 04-2019 (V55-7EN-02) (pdf 1.16Mb)
"Wireless control system A21" user’s manual 02-2023 (V55-8EN-05) (pdf 491.75Kb)
"DVUT 1200 HB EC" user's manual 01-2023 (V142-1EN-02) (pdf 3.29Mb)
"BMS parameter table for PCOS004850 module for DVUT units" user’s manual 07-2020 (V197-1EN-02) (pdf 71.29Kb)
"NB DVUT HB" installation instruction 11-2020 (V113-14EN-01) (pdf 1.12Mb)
Parameter Value Measurement unit
Ø D 397 mm
H 2106 mm
H1 2000 mm
H3 545 mm
H4 1110 mm
H5 70 mm
L 1900 mm
L2 265 mm
L1 1951 mm
L3 535 mm
Additional characteristics
Additional characteristics

Fresh air stream length

Point Power [W] Sound pressure level at 3 m (1m) [dBA]
1 350 24(34)
2 356 24(34)
3 358 23(33)
4 356 23(33)
5 127 20(30)
6 129 20(30)
7 129 19(29)
8 129 19(29)
9 50 15(25)
10 50 15(25)
11 50 15(25)
12 48 14(24)



Sound power level   Octave frequency bands [Hz] LpA, 3 m dBA LpA, 1 m dBA
  Hz Tot. 63 125 250 500 1000 2000 4000 8000    
LwA to environment at point 1 dBA 45 31 35 40 37 36 36 28 19 24 34
LwA to environment at point 5 dBA 40 29 33 36 31 32 29 24 16 20 30
LwA to environment at point 9 dBA 36 25 32 25 29 20 22 28 21 15 25
Designation key
Designation key
Unit series Rated air flow [m³/h] Installation Bypass Electric heaters Drain pump Motor type Control

DVUT – unit with plastic heat exchanger

DVUE – unit with enthalpy heat exchanger

H – floor-mounted with horizontal spigots B – bypass damper _ – no heater

E – electric preheater

E2 – electric preheater and reheater
_ – without drain pump

DN – in-built drain pump
ЕС – synchronous motor with electronic control А14
Name Image DVUT 300 HB EC A14 DVUT 300 HB EC A21 DVUT 500 HB EC A14 DVUT 500 HB EC A21 DVUT 1200 HB EC A21
Outer ventilation hood made of white coated stainless steel NB DVUT 300 HB white NB DVUT 500 HB white NB DVUT 1200 HB white
Outer ventilation hood made of brushed stainless steel NB DVUT 300 HB chrome NB DVUT 500 HB chrome NB DVUT 1200 HB chrome
Outer ventilation grille made of aluminium MVMA 200 bVn Al MVMA 250 bVn Al MVMA 400 bVn Al
G4 panel filter SF 308x238x22 G4 PPI SF 450x257x27 G4 PPI SF 450x395x48 G4 PET
G4 panel filter SF 265x213x48 G4 SF 318x290x22 G4 SF 540x450x48 G4
F7 panel filter SF 540x450x48 F7
F8 panel filter SF 384x273x60 F8 SF 318x290x60 F8
F8 panel carbon filter SF 533x135x48 F8 C SF 666x196x48 F8 C
HEPA panel filter SF 533x135x60 H11 SF 666x196x60 H11
VOC sensor (0-10 V) DPWQ30600 DPWQ30600 DPWQ30600
СО2 sensor (0-10 V) DPWQ40200 DPWQ40200 DPWQ40200
Humidity sensor (0-10 V) DPWС11200 DPWС11200 DPWС11200
External CO2 sensor with indication CO2-1
External CO2 sensor CO2-2
Humidity sensor (NO) HR-S
Humidity sensor HV2
Hydraulic U-trap SG-32
Drain pump DN-2
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