Cheap Wireless Remote Controller and Reciever Kit - MHK1 - Thermostat

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List Price: $349.00
Sale Price: $239.00
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I like my Mitsubishi Mr. Slim ductless A/C and heat unit, but found the remote control limited. Since this thermostat kit was not an option from my installer, I bought this unit. If you search the web, there are very specific instructions on how to take the main unit apart, plug in the wires and then establish communication with the thermostat. You won't find ANY of that info on Mitsubishi's website.

But the thermostat itself is so stupid and rigidly set up to be almost useless as a temperature control device and I find myself going back to the remote control unit, which is more programmable and variable. It, at least, can be set to A/C only, locking off the heat settings.

Note: if, during the thermostat set-up, you tell it that it is a residential install, the programming functions are locked there is only the one program available, which assumes that you leave the house every weekday morning at 9 and come back every evening at 5. It can not be altered, except to set temperatures for leaving and arrival. This is beyond stupid. Even using it as a "commercial" install, it has limited and rigid time boundaries which are not useful. You must set the heat AND cool parameters for every time period (and there are only 2 time periods per day). My cheap Home Depot aftermarket units (for the radiant floor system in my house) are FAR more versatile and smarter than this unit except, of course, they won't work with this unit.

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Actually, you can change the times for the temperature changes. It's described in the manual, from the Mitsubishi website, here... http://usa.mylinkdrive.com/uploads/documents/1280/document/Mr_Slim_Series_MHK1_Central_Remote_Controller_Operation_Manual.pdf

Paul

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I was a little hesitant to attempt the installation myself but glad I did. As warned, opening up my Mr. Slim was more difficult than installing the thermostat. The Mr. Slim cover came off okay but getting to the control board to plug in the wireless controller was a little tricky but doable. Now that its in I have a greater range of temperatures for both heat and cooling than available on the small handheld unit that came with the systems. I connected the RedLink Gateway and now have the ability to see and adjust the thermostat remotely. A very nice feature.