Interesting. Would you mind to shed some light on how to get this reading?

I am using 1.5 and 2.5 XU units from Panasonic. The mobile app is pretty good but the only drawbacks are some times the app is down due to server issues and it can't store more than 6 different timers per day. Loved the WiFi remote control although I had to pay for one of it since it didn't came as complimentary gift anymore. My electricity bills reduced as well from using 1.0 x 2 units of non inverters.

For any A/C with 3.0 HP and above, usually power goes to ODU.

Depends on how often you will use the A/C and how well insulated your house is.

If your area is well insulated, you will probably need to use less A/C and maybe non-inverter is suffice.

If you plan to use >8 hours a day especially during WFH times, just get inverters model and make sure it's a 5*. Set to 26C and you are ready to go.