Daikin split unit question

[malxerr]

Hi folks,
I’m new to this forum and looking for some help regarding my Daikin Indoor unit Aircondition.

Today I removed the indoor unit and noticed that the thin copper pipe leading from the unit is twisted. (I attached pictures)
Is this normal?
Thanks malcolm

[frank]

Not normal. Does it work?

[malxerr]

Yes it does work and cools too. The only problem I have with it is that on cooling and heating mode I keep getting a continuous hissing gas sound. Could it be this is causing the sound?