VEX200EC (EXact2) Compact air handling units

VEX200 series



VEX200 series

VEX200 is a range energy-friendly air handling units with rotary heat exchangers and EC motors. You can choose between two rotor types, standard and high efficiency.

The many versions of the VEX200 range permit a high level of flexibility in installation and location as you can choose spigot location in the units end, top and bottom. Read more under Variations.
The units are delivered with integrated control systems, that are accessed is the connection box on the front of the unit.
VEX200 units are delivered either as a complete unit (VEX240-250) or split into sections (VEX260-280).

VEX260 split illustration

Operating conditions

In principle, EXHAUSTO VEX units are designed for use in comfort ventilation - i.e. under ordinary operating conditions.

Where ventilation solutions are required for rooms with high air humidity - e.g. due to humidification, we recommend you make a test calculation with one of our calculation programs. If the calculation shows a risk of condensation after the heat exchanger, an assessment must be made whether the operating conditions can be changed, or whether the unit must be modified to allow condensate to drain off. This is particularly relevant for VEX100CF.

Contact EXHAUSTO for advice on this.



Below illustrates which capacity ranges individual VEX sizes cover. To calculate the actual capacity data, use our product selection programs.

VEX240-280EC Capacity


VEX200, low-noise air handling units

All of the VEX200 series of air handling units are low-noise and their associated cooling and heating coils are also sound proofed.

To calculate sound data please see our product selection tool.


VEX200 design

The compact air handling units are designed in accordance with the German hygiene norm VDI6022, which ensures a unit accessible for service, and where fungus or bacteria are not formed which may reduce air quality. Read more about this standard under certificates at the bottom of the page. 



The cabinets are made from Aluzink AZ185 class C4 and insulated with 50 mm mineral wool. This results in low noise emissions to the external environment/installation location.

The panel construction minimizes the formation of thermal bridges in the air handling unit.

Motor sections



The motor sections are mounted in vibration dampers, which reduces noise in the ducts and eliminates the need to fit flexible connections between the unit and the duct system.

The motor sections can be pulled out for easier servicing.

The motors are of type EC and are extremely efficient. They comply with the requirements of the Ecodesign Directive.

Fan impeller

EXstream ventilatorhjul

EXstream performance:
The units are equipped with EXHAUSTO EXstream impellers, one of the leading air fan impellers on the market in terms of low energy consumption and low sound level.

The fan impeller rpm and the number of vanes have been optimised so that the “vane frequency” is in the 500 Hz band. This means that fewer/smaller silencers are required than normal and it costs less to sound proof at frequencies of 500 Hz than it does with frequencies of 125/250 Hz (the typical range).

AHUC Mainboard

EXact2 The easily accessible  connection box with built-in switch disconnector and control system fuses ensures easy access for connecting and service.


Pose og kassefiltre

VEX200 series can be supplied with panel filters and bag filters.

Filter class in acc. with EN779:
Panel filters: Coarse 85% (M5) or ePM1 55% (F7)
Bag filters: ePM10 60% (M5) or bag filters ePM1 60% (F7). 

Pre-filtering with cassette filter on the supply air side

Double filter for VEX200

It is now possible to insert 2 48 mm filters instead of 1 96 mm filter in VEX200 on the supply air side. By inserting a coarser filter in front of a finer filter, the accumulation of debris in the finer filter can be reduced. Depending on the outdoor air and the desired quality of the supply air, this can be a good idea/option.

The filters (48 mm) are available in the classes: Coarse 60% (G4), ePM10 80% (M5), ePM1 50% (F7) and ePM1 80% (F9).

A pressure drop, etc. can be calculated in the product selection programme EXselect.



Mounting base


The mounting base has feet with an adjustable height.

The base is an accessory for VEX240/250, but standard on the other models, where the unit is assembled at the bottom by using the base, and via trunk fasteners at the top.


VEX200 Energy-efficient ventilation

The design of the air handling units has focussed in particular on achieving as smooth as possible airflow through the air handling units in order to achieve the lowest possible pressure drop.

Rotary heat exchanger 

Roterende veksler 

Aluminium rotary heat exchanger with low pressure loss and a temperature efficiency of 80%. The rotor control comprises a step motor with motor control.


  • Rotor with wave height of 1.4 mm - very high efficiency
  • Rotor with wave height of 1.8 mm - high efficiency

Three rotor types – intended application:

All three rotor types have high efficiency. Some operating conditions may suit another type of rotor than the condensing rotor, which is standard.

Rotor type: Use Method Benefit

Condensing rotor:

Rotor - surface (VEX200 & VEX4000) Kondensation

Ideal for ventilation solutions without humidification and cooling

Humidity is transferred only in relation to condensation at very low outdoor air temperature.

Standard solution

High thermal benefit with lowest pressure drop of the three solutions

Enthalpy rotor

Rotor - surface (VEX200 & VEX4000) Entalpi

Ideal during periods with dry air, where recovered humidification is desired

Humidity from the extract air is recovered and contributes to the heating and humidification of the supply air

Improved solution for increasing the level of humidity during the winter period via improved humidity transfer

Sorption rotor*

Rotor - surface (VEX200 & VEX4000) Sorption (HUGO)

Ideal in areas with high temperatures in summer combined with high air humidity

Option for cold recovery and dehumidification of supply air

Best solution for maintaining a stable level of humidity during winter via higher humidity recovery. 

* In connection with cooling unit, a sorption rotor can reduce cooling requirements via its dehumidifying properties

NB: Selection of an enthalpy or sorption rotor can be expected to entail a longer delivery time.


EC-motor_MC The combination of modern EC motors and the EXHAUSTO motor controller delivers extremely low energy consumption and with the EXstream impeller, a high output is achieved.

Energy label

Via our calculation programs, it is possible to obtain an energy label which indicates the energy class of the air handling unit, provided the defined operating conditions are met.



EXHAUSTO puts great emphasis on providing accurate data. So we use a third party to measure and check our data.

Eurovent certification

All data provided with the VEX100/VEX100CF/VEX200/VEX300 model has been measured.

The units have completed a major test programme in our development department and all of the capacity, efficiency and sound data is collected via testing and in real operating situations.

In accordance with EN1886 and EN13053, Eurovent has tested and certified that EXHAUSTO VEX units meet the following requirements and classes:
Unit’s stiffness:
Air tightness class at -400 Pa:
Air tightness class at +700 Pa:
Filter bypass leakage:
Insulation class:
Thermal bridge class:

L1 (M)
L1 (M)
T2 (M), U1≤1,0
TB3 (M)

This means that a third party has checked that the data that our product calculation program produces complies with the real performance of the unit. Eurovent checks the data by selecting a unit at random and testing that unit at their own facility. If our stated data complies with the Eurovent's test results, we retain our certification. This guarantees the customer that our data is valid.

VDI 6022 - German hygiene standard

EXHAUSTO has designed its units in accordance with the German hygiene standard VDI 6022.

VDI 6022 requirements
The unit's design must make cleaning easy. There may not be areas that cannot physically be cleaned and voids that are inaccessible must be sealed. Plates must be deburred to ensure edges are smooth and corners must be rounded to avoid the risk of injury when cleaning.

In addition,the condensation tray must decline to the outlet, so that water cannot remain in the unit. It is important that the condensation outlet is connected to the drainage system on a horizontal surface.

All non-metallic materials (e.g. seals, filters), are tested to show that they do not promote growth of mould spores and bacteria.

Because the unit is designed in accordance with VDI 6022, it is both more hygienic and easier to clean.


Ecodesign - EU requirements for documentation, energy consumption and labelling of ventilation units.



General information

We have made a compilation of extracts from the Ecodesign guidelines, read more about Ecodesign under Institute.


Ecodesign data

You will find links to Ecodesign data for the individual VEX sizes under the product name and under Download, where we have located Ecodesign data under EU/ECO declarations.


We would point out that the values stated in the declarations have been calculated for a specific operating point.

If a different operating point is desired, we would refer you to our calculation programs - here you can see whether the desired unit meets the requirements for your operating point and find the associated Ecodesign data.

Cooling and heating coils


The following cooling and heating coils are available with the VEX200 series:

Water heating coils - HW 

HVW vandvarmeflade firkantet studs

Uninsulated external water heating coil. A flexible solution, where the heating coil can be installed where hot water is best accessible. That is to say, that the coil can be installed indoors for example, even if the air handling unit is placed outside.

More information concerning HW heating coils under Cooling and heating coils.

Electrical heating coils - HE 

HCE elvarmeflade firkantet studs

Uninsulated external electrical heating coil. A flexible solution, where the electrical heating coil can be installed where it is most appropriate. That is to say, that the coil can be installed indoors for example, even if the air handling unit is placed outside.

IP: 43

More information concerning HE heating coils under Cooling and heating coils: 

Cooling coils -CW 

CCW firkantet studs Cooling coils are available insulated and non-insulated A flexible solution for cooling ventilation air in premises where cooling is required, such as premises facing south. In premises facing north, cooling is often not necessary.

More information concerning CW Cooling coil under Cooling and heating coils. 

Cooling coil - DX

DX cooling 150100 Uninsulated third party coil that can be used both as an evaporator (cooling coil) and condenser (heating coil).

More information concerning DX-cooling coils under Cooling and heating coils. 

SPLIT version

VEX200 is available as a split version.

With some projects, limited space means that internal transport of the air handling unit is difficult or impossible. This is why the VEX200 is available as a split version. It means that the air handling unit can be assembled and tested at the factory as normal – just without sealant. The air handling unit can therefore be easily taken apart at the installation site, transported as single sections, assembled, sealed and commissioned.

The table below shows the dimensions of the rotor/rotor section and largest cabinet section, so that it can easily be determined whether there is sufficient space to allow internal transport.

Section Dimensions VEX240 VEX250 VEX260 VEX270  VEX280
Rotor section Height [mm] - - 1500 1800 1900 
Width [mm] - - 400 400 400 
Depth [mm] - - 1300 1550 2003
Rotor Diameter [mm]  790 790  1065 1325 1700
Weight [kg] 23  32 57 91 141
Biggest cabinet section Height [mm]  1490 1600 1265 1475 1845
Width [mm]
 950 1000  720 825 900
Depth [mm] 50   50 50 50 50
Motor section Weight [kg]  2 x 16.5 2 x 24 2 x 33  2 x 46 2 x 54

VEX260 split illustration

VEX260 split into sections



A wide accessory program is offered for the VEX200 series.

ALC™ - automatic leakage control (EXHAUSTO patent)

Leakage in air handling units with rotary heat exchangers can lead to contamination of the supply air – we have a solution

EXHAUSTO’s patented automatic leakage control (ALC) continuously measures and controls the pressure difference between supply airflow and extract airflow to ensure that no contaminated air is recirculated to the clean air in the air handling unit.

ALC - printscreen fra animation

How ALC™ works:

  • A sensor measures the pressure difference between the extract air and supply air sections in the VEX air handling unit. 
  • The VEX control system regulates an extract air damper based on the pressure difference.
  • This ensures that the pressure in the extract air section is always lower than the pressure in the supply air section.

The ALC™ reduces the transfer of exhaust air (EATR, Exhaust Air Transfer Ratio) to 0%* and eliminates the recirculation of airborne particles and gases, including virus particles.

* Tested and validated at Danish Technical University. EATR = 0% based on Eurovent "Air Leakages in Air Handling Units:  Guidelines for Improving Indoor Air Quality and Correcting Performance", 2021, EN308 and EN16798-3.

You can order your next VEX200 with ALC™, and ALC™ can also be retrofitted to your existing operating VEX200.ALC-sticker-no-background

Read more about ALC™ here.

Closing damper - LS

Lukkespjæld firkantet studs Closing dampers can be ordered with or without spring-return for indoor or outdoor installation.

Outdoor installation 

VEX240 med tag

The cabinet is insulated with 50 mm mineral wool and therefore well-suited for outdoor installation.

For outdoor installation, the air handling unit will be delivered with a roof which allows cables to be routed out from under the roof on both sides, as well as the rear of the air handling unit.

We recommend that air handling units which are installed outdoors, are secured further as described in the Outdoor-manual.



Optional spigot locations in accordance with fan location, L/R and filter type are shown below.

1.1 Extract air 1.2 Exhaust air 2.1 Outdoor air 2.2 Supply air

VEX200 with compact filter


VEX200 with bag filter


  • With choice of bag filter, spigot B location is only available for exhaust air and supply air.
  • It is not possible to have spigot location in the  bottom of the VEX280 .

Add all about the product series VEX200EC (EXact2) Compact air handling units


Get free advice on ventilation products and system solutions

Export Requests:
Odensevej 76
DK 5550 Langeskov

Tel +45 6566 1236

Calculation programs

Use EXHAUSTO's free calculation programs for calculating ventilation plant and system solutions

Go to Calculation Programs
Teaser ecodesign

Ecodesign Directive

EXHAUSTO VEX air handling units and fans comply with the Ecodesign Directive. Read more here.

See more about Ecodesign here