My 4 ton Fujitsu is great but the installed Z5 thermostat is only ever capable on plus or minus 0.5c control, so it will never get as precise or constant as my previous 0.1c Ecobee (which I still use for monitoring).
I have a new Fujitsu mini-split system that was installed about a month ago. The thermostat for each wall unit is on the remotes. Not sure if it's the same for Mitsubishi units. It's nice, because I can put the remote where I want the temp to match what I've entered on the unit, but it needs to be in direct sight of the wall unit to register. I've also noticed if I change the temp I have to see the light blink on the wall unit. If it doesn't blink, the unit didn't see the change, and it doesn't seem to register if the remote is back in line of sight afterwards.
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