injusteringar

Injusteringar is a Swedish term that refers to the process of adjusting ventilation systems to ensure they deliver the correct airflow to each room. This is a critical step in commissioning a new or renovated building's mechanical ventilation. The goal of injusteringar is to achieve a balanced indoor environment where the intended air exchange rates are met, leading to good indoor air quality and thermal comfort for occupants.

The process typically involves measuring the actual airflow at each supply and extract air terminal (e.g., diffusers, grilles) using specialized instruments. These measurements are then compared to the designed airflow rates specified in the ventilation drawings and calculations. If there are discrepancies, adjustments are made by altering the settings on dampers, which are valves installed within the ductwork. Dampers can be opened or closed to restrict or allow more airflow, thereby fine-tuning the system.

Injusteringar also considers factors such as pressure differences between rooms and between indoor and outdoor environments. Proper pressure differentials are important for controlling air leakage and preventing the spread of pollutants. A well-executed injustering ensures that the ventilation system operates efficiently, minimizing energy consumption while meeting the required ventilation standards. This process is usually carried out by trained ventilation technicians and is documented in a report for the building owner.