ProAc is a program for the calculation of sound generation in duct systems as well as for the sizing and selection of sound attenuators.
ProAc is updated with new sound attenuators on June 2, 2009.
1. Download the update (Images + Proattn.dat)
2. Replace the old database file (Proattn.dat) with the new one.
3. Copy the remaining content from the zip file and paste them in the Swegon/Images folder.
Note: The diffuser database has not been updated, due to a modified database structure with the transition to ProAir Web. It is still possible to calculate the diffuser in ProAc, but you must add sound generation and sound attenuation manually for the chosen operating mode.