VEX200EC (EXact2) Compact air handling units

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).

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.

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.

Read more about ALC™ here.

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.

Capacity

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

VEX200, low-noise air handling units

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. 

Enclosures
	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.

Fan impeller

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

Filters
	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
	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
	Aluminium rotary heat exchanger with low pressure loss and a temperature efficiency of 80%. The rotor control comprises a step motor with motor control. Efficiency: Rotor with wave height of 1.4 mm - very high efficiency Rotor with wave height of 1.8 mm - high efficiency

* 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-Motors
	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.

VEX100/VEX100CF/VEX200/VEX300

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:	D2(M) L1 (M) L1 (M) F9 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 Ecodesigne here.

Ecodesign data

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

NB:

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 refer to our calculation programs - here you can see whether the desired unit meets the requirements for your operating point and you will find the associated Ecodesign data.

VEX200

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

Water heating coils - HW
	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
	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
	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
	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. 

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.

VEX260 split into sections

VEX200

A wide accessory program is offered for the VEX200 series.

Closing damper - LS
	Closing dampers can be ordered with or without spring-return for indoor or outdoor installation.

Outdoor installation

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.

VEX200

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

VEX200 with compact filter

VEX200 with bag filter

NB:

• 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 .