Previously we used Panasonic for all AC at home no problem at all. Then after renovation 3 years ago, we've decided to change some of the ac to daikin. So, we bought 4 daikin inverter ac for. Then 1 by 1 got problem. Change the board also still problem. AC auto off, cannot switch on, If on also blowing nothing. You Imagine lah, going back home after a tiring day at work and cant even switch on the ac when the room is hot. Then all changed back 1 by 1 to panasonic and we sleep happily every night. Personally, I would not recommend daikin. Even the store that I bought from now dont recommend daikin anymore.

Yes. U knw ure fked when the seller itself dont recommend anymore and they stopped selling it.
Now using 3 x 2.5HP panasonic 3x 1.5HP panasonic. The rest almost 10 years old panasonic ac i think is inverter. Altho its been more than 4/5 years i think no service. Still good. 1 more Daikin to trash soon. This ac repair also no use, still rosak. 1 still at shop repair forgot how long already. One more put at backyard. One more put at living hall, we thought it was alredy ok after repair, but it isnt. So it is there just for show.

What do you think? Use panasonic for years no problem. Then decided to try 4 daikins all useless.

Panasonic too many models, me  .

Nanoe is air purifier. Automatically on when detected by dust sensor. You can remote on/off nanoe

X Premium Inverter - Aero Wings, Nanoe-X, Nanoe-G, R32 Refrigerant
Premium Inverter - Aero Wings, Nanoe-G, Available in R32 or R410A Refrigerant
Standard Inverter - No Twin Flaps, No Nanoe Function, Available in R32 or R410A Refrigerant

Get the one with nano.

Premium inverter 1350 & standard inverter 1200

Daikin smarto above got filter pm2.5
If your population high get Daikin.
Quick cooling , can sustain load.

Panasonic consistent cooling . But slow in cooling down.
Power consumption lesser abit.

Standard don't have much function. (Only I-auto)
Nanoe-G - Filter dust
Nanoe-X - Reduce smell/bacteria

Get the one with nano.

Premium inverter 1350 & standard inverter 1200

Daikin smarto above got filter pm2.5
If your population high get Daikin.
Quick cooling , can sustain load.

Panasonic consistent cooling . But slow in cooling down.
Power consumption lesser abit.

Standard don't have much function. (Only I-auto)
Nanoe-G - Filter dust
Nanoe-X - Reduce smell/bacteria

R32 , slightly higher efficiency & good for ozone.

High spec - Got both nano E&X
Mid spec - Nanoe
Low spec - Nil

Does comeme with X slightly higher in price.
Mid spec is sufficient. Much depends on area condition.

BTU is cooling capacity per hour (aircon sizing).

EER is how power efficient the unit is.
For same BTU, but comparing between one that uses 1000W and one that uses 3000W to do the exact same thing (same BTU)
The one with 1000W is more efficient than the makan minyak 3000W one.

So get highest EER to save power.
EER 9 and below can throw away. 10.x is barely pass. 11.x is better. 12.x ++ is best.

Inverter models usually have better EER than non-inverter because you don't waste electricity on cold starts of the motor.

think of it as a rapidKL bus
seating capacity is ur BTU

so for EER is like one trip need how many liters of diesel, then they divide that diesel cost over the BTU (seating capacity) to get a comparison which bus cheaper to operate (per seat cost)
between two buses both also got 43/44 seat (about the same long bus)

the 44 seater is old model need RM200 per trip to run
the 43 seater is new model efficient only RM30 per trip to run

of course you will say the 43 seater is better because cheap to operate (and its obvious)

But when the numbers change a bit closer
with a 43 seater needing RM30/trip and a 45 seater needing RM32.85 per trip its hard to tell "per seat cost in one trip" right? That's why the EER already do the calculation based on standard formula (cost per trip divide by total seats) so you can end up with things like EER 12.7 and EER 13.1, no need maths to calculate, the 13.1 is more efficient to operate.

EER is like RM/seat per trip (operating cost measurement based on seats/trip cost)

Why the BTU important?
Its for determining your seating capacity if you buy bus
In aircon, it means you should buy the BTU according to room size. If got 40 pax load, you need something around there so a 43/44 seater model would be OK.
If your load is 40 pax per trip, then it doesn't make sense to buy a 20 seater minibus because you then need two driver, expensive.
If your load is 40 pax per trip, it also doesn't make sense to buy a 70 seater double decker because the bus cost more, expensive and wasted capacity.

So once settle on the sizing (BTU) of the pax load, then calculate the operating cost.
Between similar model I would take the one with highest EER (best operating cost) because if one full trip cost me RM30 is much better than one that uses RM200 for one trip.

Better  you give  the room dimensions  here .  like  L & W 

i took a look at floor plan also  need much  time to  decode  it ...

you can use this from k epie 
QUOTE(epie @ Jun 18 2020, 01:01 PM)
as far as i know...the formula is:

size of the room x 60

so 230 x 60 = 13800btu  = 2hp