For sure sticker just present that aircond got 5 star energy saving only.
If cannot peel off, then my LED tv cannot watch already.
In 4 corner pasted sticker too.

Panasonic had cost cutting that's why more noisy, like my hitachi inverter also same.
After usage less than 1 month to be relocated into other room
After used the starmex had no issue at all.
When starting got nimor casing Ta Ta sound due to plastic temperature changed is very common.

My left right neighbor installed panasonic in 1st batch of 12k btu inverter still running well and fan motor & compressor noise still not much diff than when new, just slightly higher a bit, due to dirty fan blade.

The other side installed Daikin non-inverter after 1 yr usage the noise still same as older aircond.
The noise like King King Kong kong..

guys.. is good or bad for the aircond if there is an air ventilator on the ceiling as in the example pic below



what i mean, before having airconds, my house has a roof turbine ventilator installed.. Now, I'm also installing an aircond inside the room. AT night time, the temperature inside the room is much cooler with the aircond, around 26 celcius, but the temperature above the ceiling (inside the roof) is much hotter, around 33 or higher.



I wonder whether the hot roof temperature will 'travel' down into the room, causing the aircond to work much harder.. Should I seal those air ventilator's opening on the ceiling?

Not a good idea to make the grill on top of the a/c, blower suck air in from front and top, if it place too close it may suck the roof air, and your room will take longer time to cool. Just like in car, you switch from recycle air to outside air, your car will not feel that cold because is taking external air.

Based on experience, and advice from installer.  I used to have a 8" vent fan beside the a/c. Later relocate to another direction and the room cooling are much faster. 1ft is not far, air movement still happen.

Can reused the same piping, to be use gas plugging before refill new R410a into inverter aircond
But dunno the wiring will enough for inverter one.

For Acson is budget brand, power Consumption definitely is higher than any inverter aircond.

Actually acson=York, originated from same plant

Hmm....I may replace it with Daikin since both using R22 gas. May sell all 5 units of El Cheapo Acson. Thanks for the info.

Ya you guys sometime dun get confuse of mitsubish heavy industrial and Mitsubishielectric brand.

Both from same mother, but difference specs.

Starmex for inverter & mr. Slim for non-inverter if I am not mistaken.

Heavy industrial is without easy clean and diff. Btu and power consumption

From non inverter operate to 8 hours.
Calculate from 1hp only

Non inverter input watt : 0.8kw per hour.
30 days on 192kw x 3 units per mth : 576kw

Vs

Inverter unit cut down 50%
0.4kw x 8 x 30 = 96kw x 3 units of 30 days = 288kw = cheap.

For few months you earn back the installed with the whole unit cost.