Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts October 23, 2023 at 10:53 am in reply to: VFD vs 2 speed fan on new ACC unit #2781 dpwatsonParticipant At the ACC user conference, that was held at Dominion, it seemed that VFD’s were favored as well when the discussion came up in the group. We will add the critical speed identification to the commissioning testing as well. Thank you for the reply. Author Posts Viewing 1 post (of 1 total)