Energy Efficient Wall Mount AC Units

[juju]

I am looking to get as much info as possible about the options for wall mount energy efficient AC units out there (used in 220V country).

I am looking to compare the wattage and cost differential between these and regular 220v wall mount units. Can someone point me to a great resource to get info about these?

Any recommended brands?

So to narrow down my original question. Assuming I currently have the Samsung unit (Max 2.5HP Split Air Conditioner, AS24UUQ ). What are the energy efficient options to replace this. ( note: this is in a 220v country and i have no need for heating. Just AC )

The specs for the samsung:

Cooling Capacity (BTU/h) - 24,00
Energy Efficiency EER (Cooling, Btu/W) - 9.23
Rated Power Input (W) - 2,600
Daily Power Consumption @ 7hrs /Day (Wh/Day) - 18,202
Noise Level (dBA) Indoor High/Low - 41 / 33