Posted 5/21/2026 18:48 (#11653255) Subject: Raven controller on NH3 bar issue
Southern Illinois
I have a Raven 440 controlling a single section, single cooler NH3 bar. When the master switch is hit the pressure goes up to 20 and goes to 0. We had changed the flow sensor so it is fairly new.
What could be the problem? TIA
Raven controller on NH3 bar issue
