If a manufacture - such as AI - gives you a “turn key setup”. Double the size and performance of the setup. Just my 2 cent. I only use AI C80 chillers for that specific reason.
I’ve been using tap h20 the last 4x with my re501. I have a vrm circulating heater chiller that is a JOKE for chilling. It couldnt chill an eskimo in antartica.
Bought a leakphang type unit from my local spot to try out next rotovap run.
Clean the chiller radiator with AC radiator cleaner from home depot. My chiller always does this, your radiator probably has dust on it and cant disappate heat
If you call AI ( which I did ) this is what theyll tell you to do
If it wont stay cold your chiller is over loaded and you need a bigger one