ActronAir Classic SRG171E (17.0kW, Three Phase)

Sorry I don't have enough technical knowledge to answer this. You probably should contact Actron.

Maximum pipe run is 60m, including a maximum vertical rise of 20m. The unit is precharged with enough refrigerant for 15m of piping, extra length will require more refrigerant (of course your installer will sort this out).

Most of the larger ducted air con (from any vendor) do not have star ratings. You can get some idea of comparative running costs using the comparator at energyrating.gov.au web site.

The Actron SRA/SRG models are fixed speed systems (not inverter) so not a direct comparison to the Daikin Standard inverters (variable speed compressor), but they do the job quite well. An inverter will give more precise temperature control and may be quieter in operation, but contrary to common belief are not necessarily more efficient than modern fixed speed units. Actron do make inverters (Platinum series) which compete with the top end Daikin Premium inverters, but if you are shopping around you should look at some of the other reputable ducted brands including Mitsubishi Heavy Industries, Mitsubishi Electric, Panasonic and maybe LG - may be cheaper than Actron or Daikin.

Jim

The statment that the Acton Air units are noisy, is a mater of comparison, we Had a York system prior that was very noisy, but hte Acton unit in comparison is quite and is not running all the time.

Hope this helps.