Hi sifus, newbie here.

I have recently bought a Sharp aircon from Lazada to replace my 10+ years old AC, want to confirm with you guys if the aircon will fit my existing piping or not.

My old AC (IDU and ODU doesn't match)
IDU: Toshiba RAS-13YKX
ODU: Upson UAC-N19C (cannot find anything related to this)
BTU: roughly 13000 after converting from kW
Suction line OD: Toshiba spec sheet says 12.7mm (1/2 inch), but I measure my old line is 9.52mm (3/8'). Attached spec sheet as pic below.
Gas: R22, old pipe so I expect thickness is 0.51mm at best.



The AC that I bought on Lazada
Model: Sharp AHA12WCD
BTU: 12390
Gas: R32
Suction line OD: 1/2' from website
https://my.sharp/products/air-care/15hp-r32...tioner-aha12wcd

My original piping is concealed so I really prefer to use back the old line. I am aware that R32 operates at a higher pressure and I am willing to take the risk.
But now the main question is if my original line will fit my new AC set or not? Any advice?