Mitsubishi Mini-Split External Controller (MHK2)
I recently had a Mitsubishi 3-zone Hyperheat mini split installed in our 1440sqf home. When in heating mode, I cannot seem to find a way to reliably keep a set temperature. I have been playing around with the various vane and i-sensor settings. Every time I think I got something figured out, a few hours later it’s off again. Now, the room is by no means a uniform cube: it has partially cathedral ceilings, huge south facing windows, and it open to the kitchen/hallway. Makes sense that it would be hard for a inflow-vane temp sensor to figure out what the temp is.
Anyhow – I’d like to figure out what my external thermostat options are. At this point, I am only interested in upgrading the one zone. Sounds like anything that actually works for a Mitsubishi is quite expensive. (I did just try to use a Cielo Breeze that was over $100, only to realize that it isn’t a real thermostat.) Do folks have any experience with the new MHK2 system? In particular, with the MSZ-FH15NA type cassette? How difficult is the install?
[Edit] One more question. I see some sellers offering the MHK2 on ebay. $100 less than other retailers. Anyone has experience with going that route?
Thanks a lot for your responses.
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