Recently installed Mitsubishi’s MRCH2 wireless thermostat with the MIFH2 wireless receiver. On a MSZ-HF18NA indoor unit. Customer was complaining about colder temps at floor level than setpoint on the unit (higher on a wall with a cathedral ceiling), and daughter constantly playing with the remote and getting the display temp on the remote way off from the unit setpoint. Installed the remote thermostat and when the thermostat is set to 74, unit cools down to 72 degrees room temp, cycles off, then turns back on in the 73 degree range there about. Temp display on thermostat is dead on verified with several thermometers. Thermostats were setup to use the MRCH2 as the temperature sensor. My question is is the temperature swing on this remote thermostat as abhorrent as the internal thermistors are on the Mitsubishi units? I can not find any documentation anywhere on what the swing is set at on these thermostats, nor if they are installer programmable. Right now if the customer wants a room at 74, they have to set the thermostat on 76. Mitsubishi tech tells me the units have a 2 degree swing (internal) but they can’t tell me what it is on these thermostats. Are they too new for anyone to have that info? Any help would be appreciated, the customer is beside themselves with this, and I now feel like we should have installed the wired controller using a Nest or Ecobee, or something where the temperature differential can be set to .5 or .75, hell even 1 degree is better than these things.
Mitsubishi Mini Split Temperature swing
Kylel2838
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You'll need a Tech to call, they wont deal with the end user!
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