Licences for Split AirCon Installation (NSW)

Hi guys,

I'll start with: I did read most discussions about air con installation on the forums but still confused about which licences are exactly required to at least assume the work is done correctly.

So, I need a new Split AirCon system installed. I placed a job request on ServiceSeeking website which seems to have proper tradesman most with licences.
As expected I got heaps of quotes.

There are also two types of licences people are quoting:
1. Arc Licence (Starts with L) like L0XXXXX that can be checked https://www.lookforthetick.com.au/licence-check
2. NSW Fair Trading Licence (Ends with C) like XXXX00C that can be checked https://www.onegov.nsw.gov.au/publicregister/#/publicregiste…

Some tradies seem to have both, some only one of them.
Also, some tradies have on the NSW licence multiple licence classes:
- Air Conditioning
- Refrigeration
- Electrician
Others have less (e.g. AirCon, Refrigeration only) or more (Plumber).

I also read this https://www.fairtrading.nsw.gov.au/trades-and-businesses/lic… but it does not explain which licences I should check as a consumer the trader has to do the job.

From what I understand it's better to also be an electrician, otherwise I need to call a sparky separately to have the system connected.

So, what should I be looking for?
Should I expect the tradie to have both ARC licence (for the refrigerant) and NSW Fair Trading Licence for AirCon, Refrigeration and Electrician) or is it safe to accept less?

Found a new article:
https://www.licensedtrades.com.au/licensed/air-conditioning
This states that A licence to install air conditioning also authorises the licence holder to perform any “associated electrical wiring” work that is needed to install the system. So I guess they don't need to be a fully licensed electrician to install the aircon but still need a NSW Fair Trading Licence.

Thanks,
Corneliu.