I just went and had another look and it doesn't say "Fused Spur" at all
(sorry). The "20A Fused Spur" phrase actually came from someone I contacted at the air con company, who stated that the unit should be
(and are generally) wired onto 20 fused spurs.
We do have warranty for a while yet...
I had an aircon/heater unit installed a few years ago, and it recently
stopped working (burning smell) and I started to look into it.
It was connected into the 32A ring main with a 20A rated DP Switch -
and a loose connection at the switch had totally burnt through, blackening
the...