My qualified electrician swapped the neutral and the phase on the A/C In and A/C Out on a Multiplus II. We realized this when the system repeatedly shut down as soon as a load was put on the system. The neutral and phase were then properly connected.
Are there possibly long term damage(s) to the system as a result of this mistake? If so, what would the symptoms of those damage(s) be?
Thank you very much for your help.
Well as no-one has stepped in I will venture an answer.
AIUI the need to connect the phase and neutral the correct way round is all to do with the earth bonding relay for island mode, and the checks that are carried out on start-up which make all the relays click loudly.
From what I know of the circuit topology and construction, the system would otherwise work OK either way round and so the likelihood of any permanent damage is slight.
