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Odensevej 76, DK 5550 Langeskov, Denmark Release version 2.20260429

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VEX4000-advantages

The strongest ventilation program on the market

VEX4000 - countless combinations, always a solution

Design your system
Heat pump unit
Leakage control
Control system
Certificates

6 good reasons to choose VEX4000

There are many reasons to choose VEX4000 for your next project - here are six of them

VEX4000 - check the basics

Reversible heat pump

Available as a complete module with built-in rotary heat exchanger or separate modules, depending on space conditions and performance requirements.

Reversible heat pump

VEX4000 CF product

Counter flow heat exchanger

Often the most energy efficient solution with a high heat recovery rate. Ideal for buildings where the transmission of odours and moisture must be completely avoided.

Counter flow heat exchanger

Rotary heat exchanger

The rotary heat exchanger delivers reduced energy consumption by means of its high temperature efficiency, which is often more than 90%.

Rotary heat exchanger

Crossflow heat exchanger

The classic crossflow heat exchanger ensures stable, economical operation and meets the requirements for separated air flows, so that neither contaminated air nor humidity are transferred from extract air to supply air.

Crossflow heat exchanger

Heat recovery coil

This coil has been specially manufactured for a shop solution where surplus heat from, for example, cooling machines can be recycled.

Heat recovery coil

Chamber fan and filter

The plenum chamber fan is often integrated in compact single units, as it provides greater flexibility with respect to installation location and spigot position. The filters are used to filter particles from the supply air prior to the outdoor air/extract air.

Chamber fan and filter

Water heating/cooling coil

The water heating and cooling coils work by the supply air passing over the heating elements in the coil, which are heated og cooled down with water. The supply air absorbs heat/cold from the heating elements and so achieves a higher or lower temperature.

Water heating/cooling coil

Solutions

System solutions
Product selection programs
Air quality is everyone's responsibility
CAD models from EXselectPRO
Comply with the rules
List of references

Products

Air handling units
Measuring, control and connectivity
Fans and roof ducts
Air diffusion
Certified smoke extraction fans
Roof terminals
Fire Protection

Documentation and Support

Instructions, declarations and certificates etc.
Softwares

Copyright 2026 EXHAUSTO

Electric heating coil

Electric heating coil The electric heating coil is an accessory used to increase the supply air temperature.

Electric heating coil

Empty section/Smoke evacuation function

Empty section/Smoke evacuation function Used in several cases, e.g. for rotory heat exchangers and in other locations where functions cannot be inspected from adjacent sections.

Empty section/Smoke evacuation function

Mixer and recirculation section

Mixer and recirculation section The mixer/recirculation section can be selected for special purposes, e.g. heating, where it is wished to mix/reuse the extract air for heating/cooling as the need arises.

Mixer and recirculation section

Integrated DX cooling

Integrated DX cooling Integrated DX cooling is used for cooling supply air via an evaporator and is used when cooling of the supply air is required.

Integrated DX cooling

Cooling coil for direct expansion

Cooling coil for direct expansion Ideal cooling solution for VRV(F) units or external units, as they are filled with refrigerant, which needs to evaporate to function as a cooling coil.

Cooling coil for direct expansion

Roof for outdoor units

Roof for outdoor units A roof is offered for units that are to be installed outdoors and protects the unit from rain, sludge and snow, so that the unit is always ready for operation.

Roof for outdoor units

Read more about all modules and accessories for VEX4000 here

Unique project planning with

Whatever your project, VEX4000 is up to the task, and with our design program EXselectPRO you can combine and assemble your ventilation system the way you want. At the same time, the program provides you with detailed technical data, dimensional sketches and energy calculations and labels. Easy and straightforward!

Installation has never been easier

Unit delivered assembled
If the unit is delivered assembled, EXHAUSTO ensures that all modules are correctly connected to each other and assembled on a base frame.
Modules delivered separately
In many cases it can be an advantage to receive the modules individually, for example if the modules have to pass through doors or up stairs. That's why VEX4000 is designed in a way that makes it very easy to assemble.
SPLIT solution
The unit is delivered disassembled in so-called "Flat-Pack" so that even large units can be transported into narrow access areas.

Modular blocks

Heat pump in combination with ventilation

Energy efficiency and low energy consumption requirements for ventilation solutions have increased the focus on combining heat recovery with an integrated heat pump. By combining ventilation, heating and cooling in one unit, you get a solution that is both highly energy efficient and far simpler than traditional cooling solutions with chillers and ducting on the roof.

With VEX4000RHP you get...

Heating, cooling and ventilation in one integrated unit
One factory-tested unit
Advanced EXcon automation
No need for additional heating/cooling installations
Fast, simple calculation, documentation and technical data via EXselectPRO
One supplier for the whole solution

With a VEX4000RHP-ER, a rotary heat exchanger is placed between the evaporator and condenser for the lowest energy consumption and refrigeration recovery. With VEX4000RHP, the heat exchanger and heat pump are placed in separate modules, contributing to a compact solution that is easier to transport.

Comparison-of-consumption-VEX4000RHP-ER med VEX4000RHP og VEX4000IC-HE

We assume here that the heat pump or the heat exchanger must run half of the year at 33% capacity to achieve the supply air temperature. Compared to an electrical heating coil VEX4000 RHP and VEX4000 ER-RHP reduces the heat consumption by 60%/82% respectively.

Any extra investment when purchasing a heat pump pays for itself relatively quickly. Comparison with district heating, gas, oil or other energy source will depend on price per kW.

EXHAUSTO ALC™

The patented solution to prevent the spread of disease through a rotary exchanger ventilation unit

ALC™ is a simple plug & play solution offered for VEX4000 with rotary exchanger. The solution prevents leakage and thus prevents the spread of viruses, particles and gases through the ventilation system. By activating ALCCTM, leakage is prevented by the VEX's automatic system, regardless of the current operating situation.

How ALC™ works

A sensor measures the pressure difference between the exhaust and supply air chambers in the VEX unit.
The automation in the unit regulates an exhaust air damper based on the pressure difference.
This ensures that the pressure in the exhaust air chamber is always lower than in the supply air

With the automatic leakage control, the Exhaust Air Transfer Ratio (EATR) is reduced to 0%** and recirculation of airborne particles and gases, including virus particles, is eliminated. At the same time, ALC™ is an energy-efficient solution as demand-controlled operation can be done without leakage problems.

Benefits:

A simple plug & play solution that can also be retrofitted
Exhaust air transfer rate EATR = 0%**
The perfect solution for hotels, educational institutions, offices, hospitals, shopping centers etc

**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

ALC- Leakage control - see how it works

EXcon control system

- Advanced control for optimal operation

VEX4000's built-in EXcon control system controls airflow, heating and cooling, and it's up to the user to decide how and when the automation should switch between the built-in functions.

Functions built into the control system

Night setback
Alarm log and data log
Control by daily, weekly or annual schedule
Extended operation
External forced operation with after-run
Alarm e-mail
Summer night cooling
Outdoor temperature compensation
Automatic summer/winter switching
Zone control for four zones
Portal solution, total monitoring of up to 5 systems with EXconautomatik

Control modes

Constant pressure
Constant air volume
ConstantCO2
Fan optimizer
Constant motor speed
Adaptive pressure control (Patented solution for energy optimization of VAV systems)
External 0-10V with supply air/free air slave
Constant pressure control with supply/exhaust air slave
3 levels; low, medium and high speed/pressure/airflow

Temperature regulation

Constant supply air temperature
Constant extract air temperature
Constant room temperature
Constant difference between extract and supply air

Eco-energy logo picto

43% energy savings vs. VAV
World-class energy efficiency with patented adaptive pressure control

The VEX4000 unit comes with EXcon control system, which allows you to use EXHAUSTO's patented adaptive pressure control (aDCV). Adaptive pressure control continuously optimizes the pressure in the unit depending on the demand in the building, reducing energy consumption compared to traditional methods of pressure control (CAV, VAV, and DCV). Through the patented adaptive pressure control, up to 43%* savings on energy costs can be achieved.

*Up to 43% compared to a system with constant pressure control (VAV). Up to 20% compared to a demand-controlled system with constant pressure control (DCV)

Graph of principles with ALC

Operate the system when you want, where you want

Ipad animation of VEX4000 controls

Setting and control via web server from PC, smartphone or tablet. Network communication supports BacNet over TCP/IP and Modbus over RS485 or TCP/IP. Communication with LonWorks can also be supported as an option.

Read more about the automation solution here

Certified performance

VEX4000 series takes into account key industry norms and standards

EUROVENT

VEX4000 is Eurovent certified and as part of this certification, the data provided in EXselectPro is verified.

RLT

VEX4000 is RLT certified and as part of this certification, the data provided in EXselectPRO is verified.

VDI 6022

VEX4000 is designed in accordance with the German hygiene standard VDI 6022.

We can advise you on how to ensure optimal access for inspection and cleaning of your ventilation unit's sub-components and thus prevent harmful microorganisms from entering the ventilation system's air streams.

For an additional fee, you can order VEX4000 as a hygiene certified unit in accordance with VDI 6022-1.

Eurovent, RLT and VDI6022 certificats for VEX4000

VEX4000 - a result of experience and know-how

VEX4000 may be a future-proof series, but its development is based on our knowledge and know-how of quality products that the market has known and appreciated for decades.

In the more than 60 years EXHAUSTO has been developing and manufacturing ventilation solutions, the focus has always been on the ever-increasing demands from legislation and customers.

We have combined our know-how from the VEX100-200-300 series with the knowledge we have gained from the unit series we have since acquired - and developed the VEX4000 series, which with a capacity range from 1,050 to 36,000 m³/h and unique configuration options can solve virtually all ventilation tasks within comfort ventilation

Your expert and professional ventilation partner

Contact us for more information

Contact us for more information

At EXHAUSTO, we never compromise on quality, and as ventilation experts with many years of specialist experience, you are not only guaranteed the best ventilation solution, but also a competent partner.

EXHAUSTO develops and manufactures high-quality products and systems for comfort ventilation in all areas of application - from offices, shops, schools and institutions to industrial buildings, hotels and hospitals.

With a focus on high efficiency and energy consumption that meets future energy requirements, EXHAUSTO is among the absolute leaders in the field.

Engineering Air

Innovation and quality
Sustainability makes work more complex
Filter standard ISO 16890
How we test our VEX units

VEX1000 - New standard for compact ventilation solutionsFollow for more information on VEX1000

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Summer and winter compensation

Recirculation heating (optional)

Summer night cooling

6 good reasons

Energivenlig-hus-med-blad-VEX4000

Extremely energy efficient

VEX4000 has an efficiency of over 90% (with condensation) and patented adaptive pressure control that further reduces energy consumption.

Ear picto

Low noise emission

One of the quietest fan impellers on the market combined with EC motors gives an extremely low noise level.

Small and compact design

Compact, modular design, even available as a SPLIT solution for narrow access routes.

cabel picto

Simple installation

Your unit is assembled either before or after delivery with assembly brackets and detailed assembly instructions. Assembling a ventilation unit has never been easier!

VEX4000-advantages | EXHAUSTO

cubes and hand picto

Easy configuration

With the unique EXselectPRO design program, you can put together your own unit with the modules and functions required in your project.

Picto with snowflake and sunshine

Reversible heat pump

VEX4000 is available with an integrated reversible heat pump. Here you get ventilation, heating and cooling in one unit; simple, reliable and highly energy-efficient.