HVAC VFD Accel/Decel Time Commisioning

[@bobparrott8130]

I totally agree, nice info

[@ayoutubewatcher7009]

typically, when I have a building with outdated hardware that's failing,,, equipment by equipment will eventually get converted over to standalone controllers. the honeywell T775 can literally do 99% of building applications and yes the pid loop can be tuned. Heck I even used 1 for a pump that fed the main building water loop ( just make sure you put the transducer at the top floor)

[@aleonyohan6745]

Does the accel/decel time affect the PID loop?

[@blacksmith8642]

Sir, Yk centrifugal chiller style H facing problem condenser liquid level refrigerant fluctuate 1.9 % to 90 %, already replaced new refrigerant actuator positioner valve. Can you explain what is the issue. And how to troubleshooting it. The warring is liquid refrigerant level stability.

[@tinymanthebeast]

you can get an over current fault if not set up correctly.

[@EOD423]

Did anyone else think the hands behind him were real?