Caution
I have the Mitsubishi whole house ducted system for over three years. It is an efficient unit and it is very quiet but there is an issue with it being unable to hold point it will allow the unit to run it lower speed up to 4° above Setpoint without ramping up, you have to manually increase the speed or drop the thermostat to its lowest setting to get back to set point this is a problem using the Mitsubishi thermostat if you change to the Honeywell, thermostat you go back to a two speed system and lose efficiency MS air conditioning has been unable to resolve this issue
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