In large production halls, air quality is of central importance – both for the quality of the products manufactured and for the well-being of the people working there. An intelligent ventilation system not only ensures the supply of fresh outside air, but also reliably removes excess heat and pollutants. Natural, mechanical or hybrid systems consisting of mechanical ventilation and heat pumps are used. 

Natural ventilation: Well suited for halls with high heat release 

Natural ventilation through windows and openings is particularly suitable if the heat load in halls is more than 800 watts per square metre and no pollutants need to be removed. In such cases, the temperature difference between the indoor and outdoor areas creates stable thermal currents that continuously supply fresh air and dissipate heat – regardless of the weather conditions. This saves energy and reduces acquisition and maintenance costs. However, this solution is not practicable in all cases. 

Mechanical ventilation system: indispensable for low heat loads and high levels of pollutants 

At low heat loads, the temperature difference is often not sufficient to ensure reliable natural ventilation. In such cases, a mechanical ventilation system ensures a controlled and constant supply of air, which is essential for maintaining low concentrations of pollutants. 

Mechanical ventilation is particularly necessary if: 

• the heat release is low (less than 800 watts per square metre), 

• there are fixed specifications for the interior temperature, 

• pollutants must be continuously discharged. 

In order to optimise energy consumption, a detailed analysis of the current ventilation situation and determination of requirements is essential. Precise dimensioning of the air volume flows on the basis of measurement data ensures efficient system control and minimises unnecessary energy consumption during air conveyance and treatment.

Modular hybrid systems: Mechanical ventilation system with integrated heat pump for heating, cooling and ventilation 

Hybrid systems add innovative heat pump technology to mechanical ventilation systems. Decentralised ventilation units are used, each combined with powerful air source heat pumps. The heat pumps automatically adapt their output to the current heating or cooling requirements of the respective hall zone, and thus ensure an individually controllable and energy-efficient indoor climate. 

Modular Hoval systems enable quick and straightforward planning and installation. This combination ensures a holistic approach to air conditioning of the hall, providing both pleasant temperatures and a continuous supply of fresh air.

Sustainability through photovoltaic integration 

Another advantage of hybrid indoor climate solutions is that they can be easily expanded with a photovoltaic system. The electricity generated can be used directly to operate the heat pumps and ventilation units, reducing external energy requirements and lowering operating costs. 

Hoval indoor climate systems: holistic solutions for production halls 

The combination of mechanical ventilation and heat pump in a modular hybrid system offers an efficient, flexible and sustainable solution for the air conditioning of large industrial and production halls. It guarantees optimum air quality, individual temperature control and an energy supply with scope for future expansion – optimised for modern production environments with high demands on the indoor climate. 

Our efficient Indoor climate systems ensure the best air quality and ideal temperatures in large rooms and halls.