I am a hvac installer in portland or. I have been to a few classes and all the reps in these classes say anything within 10 feet of indoor or outdoor unit
may get rfi. The good news is they are very quiet and compact. I have put in all brands and Daikin ductless seems to be the bullet prof one. I would put it in your contract that if units interferes with your station they need to fix it or give money back. Also with the r 410 refrigerant it is very important that the person installing a system uses proper refer procedures.
good luck w7akv
Do include it on your contract! I told the installer of our central heating system, that they needed to include verbiage to the effect that if I had interference, caused by devices they installed, they would either fix the problem, or refund my money back, and replace the old heater. This makes them VERY serious, and very careful, about fixing RFI, and making sure it is not there in the first place. Bring it up early on in the discussion... I told every installer I got a bid from that it was a showstopper if they would not include that verbiage into the agreement. I have no RFI, and did not from the start. They called the manufacture, and got assurances that the heater they put in was quiet, and it is...