just come across this page.

I have installed Daikin inverter units in my old place of work (1hp for Server room) and a 2.5hp for conference room.

This is my observation. Both units are 4 years old.

- no problems whatsoever, the server room unit is left 24/7 and it has been chugging along fine for 4 years, with only normal cleaning/maintenance. Only one problem when it flooded the server floor due to a blocked water hose...which is not the fault of the A/C unit.

- the 2.5hp seems a little underpowered compared with the old York unit. feels like the inverter compressor isn't running at 100% and takes longer to cool. However, long meetings are more comfortable since you don't have the freeze/sweating cycle.


I'm using Panasonic Inverter unit at home for the past 1 year and it has been problem free. Typical usage is from 8pm to 7am daily. saves about $20-30/mth from my electricity bill compared to my 8 year old National unit. Forgot the price. Used CC card points to exchange.