Horizon exhaust fan operating a minimum Hz? #hvac #hvaclife #commercialhvac #hvacarmy #hvaccontrols Horizon DOAU exhaust fan is not operating at full speed, but why? It is operating at its minimum speed set in the VFD with an assumed 100 percent call, the analog output (AO) is configured correctly and should be sending a 0- 10 VDC signal! Let’s check it out and figure out why it is not operating as it should.

Posted by EverythingHVACR at 2025-02-23 16:44:23 UTC