Great suggestions!
Only 2 of the motors run on VFD’s as required for coil temperature demand. My HVAC vendor suggested adding vfd’s to all remaining motors – which would resolve the hard start-up, but seemed too drastic cost-wise for an older unit – and I didn’t think would give much...
I am looking for suggestions to solve a condenser motor problem in an air cooled chiller. The unit has 12 condenser fan motors – all with a common air intake. Motors are chronically failing – after forensic inspection of a couple units, we have determined electrical grounding after bearing...
