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Suspension-mounted single-room air handling unit in a heat and sound insulated casing with heat recovery. Air capacity up to 510 m³/h. Heat recovery efficiency up to 94 %.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Accessories
  • The DVUT PB EC air handling units are intended for single-room ventilation of schools, offices and other public and commercial spaces.
  • The 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.
  • Low-energy EC fans.
  • Very quiet operation (25-35 dBA).
  • Supply air purification by means of two built-in G4 and F8 filters with the option of carbon or HEPA filters.
  • Simple installation.
  • Contemporary design.


  • The casing is made from high-quality polymer-coated steel with internal heat and sound insulation made of mineral wool 40 to 80 mm in thickness.
  • The contemporary design helps the units blend in nicely with a wide variety of interiors.

Air dampers

  • Supply and exhaust dampers are closed automatically while the unit is off to prevent drafts.

Air filtration

  • Supply air purification is provided by G4 and F8 panel filters (PM2.5 > 75 %).
  • To meet more stringent air quality requirements the unit can be upgraded with carbon F8 filter and H11 filter (PM2.5 > 95 %) (purchased separately). Extract air is purified by a panel G4 filter.


  • 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 DVUT PBE EC and DVUT PBE2 EC units are equipped with an electric pre-heater to prevent heat exchanger freezing.


  • The DVUT PBE2 EC units are equipped with electric reheaters to raise the supply air temperature.


  • The units are equipped with a summer bypass function.

Heat exchanger

  • The DVUT units feature a counter-flow heat exchanger made of aluminium.
  • The heat from 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 warm weather, the unit can either be used in its summer bypass mode (fresh intake air is directly supplied to the room, bypassing the heat exchanger and not coming in contact with warm extract air) or, if air conditioning is being used, the extract air will cool the heat exchanger and bring fresh air at the same temperature as the air-conditioned air that is being extracted.
  • Warm, stale air passes through the filter and the heat exchanger and is then extracted outdoors through the wall duct by the centrifugal extract fan. The heat from this extracted air is transferred to the heat exchanger.
  • Cold outdoor air passes through the filters and the heat exchanger and then is supplied by means of the centrifugal supply fan. This air is warmed by the heat exchanger allowing the supply of fresh air whilst maintaining the areas temperature.



 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 have a remote control panel.
  • There are two types of control panels available.
Function А17 А18
Remote control panel + +
Preheating + +
Reheating + +
Humidity sensor
СО2 sensor
Speed setting in the 0 to 100 % range + +
Bypass control Automatic Automatic
Filter maintenance warning + +
Alarm indication + +
Timer operation + +
Weekly schedule operation + +
Supply air temperature setting + +

+ – Available; – Optional; - – Not available.

Parameter DVUT 500 PB EC
Measurement unit
Frequency 50/60 Hz
Phase 1 ˜
Voltage 230 V
Maximum unit power 230 W
Maximum unit current 1.7 A
Sound pressure level at 3 m distance 24 dBА
Air capacity 510 m³/h
RPM 1700 min-1
Heat recovery efficiency 79...94 %
Transported air temperature -25 ... +40 °С
Functions Filter replacement indication, Timer, Weekly schedule, External sensor connection -
Remote control panel LCD -
Heating without heating -
Casing material painted steel -
Insulation 40 mm mineral wool -
Filter: extract G4 -
Filter: supply * option G4, F8, * F8 + Carbon, * H11 -
Mass 103 kg
Heat exchanger type counter-flow -
Heat exchanger material aluminium -
SEC Class A -
Duct 250 -
Mounting ceiling mounting -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Catalogue "Single-room ventilation for schools and public spaces" (pdf 8.96Mb)
User's manual "DVUT PB EC" (pdf 16.14Mb)
Download high quality image "DVUT PB EC" (psd 1.08Mb)
Download image "DVUT PB EC" for your website (png 223.42Kb)
User's manual "Automatic control systems for AHU th-Tune (A17) and pGD1 (A18)" (pdf 6.32Mb)
Parameter Value Measurement unit
W 1806 mm
W1 244 mm
W2 1316 mm
L 1006 mm
L1 1083 mm
H1 400 mm
H 386 mm
H2 169 mm
H3 217 mm
D 249 mm
Additional characteristics
Additional characteristics
Point Power [W] Sound pressure level at 3 m (1m) [dBA]
1 230 23 (24)
2 220 23 (33)
3 200 23 (33)
4 178 22 (32)
5 106 19 (29)
6 100 19 (29)
7 92 19 (29)
8 87 18 (28)
9 46 13 (23)
10 45 13 (23)
11 43 13 (23)
12 41 13 (23)


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 emission at point 1 dBA 44 22 28 38 41 37 33 25 16 24 34
LwA emission at point 5 dBA 40 18 24 32 32 36 28 29 17 19 29
LwA emission at point 9 dBA 34 10 17 22 21 33 18 18 17 13 23
Designation key
Designation key
Unit series Rate air capacity [m3/h] Installation Bypass Electric heaters Motor type Control

DVUT – single-room heat recovery ventilation

300; 500 P – suspended with horizontal spigots B – bypass damper _ – no heater

E – electric preheater

E2 – electric preheater and reheater
ЕС – synchronous motor with electronic control А17 – th-Tune control panel with an LCD screen

А18 – pGD1 control panel with an LCD screen
G4 panel filter SF 270x216x48 G4 SF 325x388x48 G4
F8 panel filter SF 270x218x48 F8 SF 325x314x48 F8
F8 panel carbon filter SF 518x270x48 F8 C SF 714x320x48 F8 C
HEPA panel filter SF 518x270x48 H11 SF 714x320x48 H11
Module Modbus-RS485 PCOS004850
VOC sensor (0-10V) DPWQ30600
СОsensor (0-10V) DPWQ40200
Humidity sensor (0-10V) DPWС11200
Humidity sensor (NO) HR-S
Humidity sensor HV-2
Hydraulic U-trap SG-32
Drain pump DN-2
External grille MVMA 200 bVn Al MVMA 250 bVn Al
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