To hume17,
Most brands inverters can match the setup that u want.
To osmond19,
2 trips is good in the sense that after they paint e walls, then u install the blower units.
So next time u do not need to repaint after a few years when u change a new aircon.
To beta_tester
Some hdb 5 rooms and marionette can install 2 outdoor units if they have higher electrical loading.
Thanks, terumo. I got it now.