Mitsubishi 5 zone early impressions AND question
My Mitsubishi system has been up and running for 5 days in outdoor temperatures of 28-53F (07480)
This is a MXZ, SVZ, MLZ, MSZ system.
Kumo Cloud control: considering the many bad reviews I’m finding Kumo better than expected. Apparently the previous generation was awful, but this 2nd gen seems OK. I actually prefer Kumo over the Nest on my oil burner.
SVZ full Air Handler: Controlled by PAR-CT01 thermostat. This unit is ducted to three bedrooms that I was told are too small for individual wall units. The air handler is nearly silent and runs within 1 degree of thermostat setting. The PAR-CT01 thermostat might be overkill tech for this application but the MHK-1 looks too dated IMO, particularly compared to the Nest we just removed.
MSZ-FE wall unit: installed in basement. Love this unit but not the the I-see feature. Very quiet. Runs within 1-2 degrees of internal temperature sensor setting (using remote control).
MLZ ceiling cassettes x3 (kitchen, living room, basement): Not until the required 4’ by 14” ceiling holes were cut did I think of the energy sacrifice this gives up to the traditional wall units!
The MLZ in the living room and kitchen tend to overshoot temp settings by 3-5 degrees in the afternoons, even with PAC-USWHS003 wireless sensors. The basement MLZ is running perfectly within 1-2 degrees of setting.
I have read that residual refrigerant is always traveling around in multi-zone systems even when units are not calling…I think that’s what happening with my upstairs MLZ’s. I have also noticed virtually Zero heat comes out of the MLZ’s when you manually turn the fan off. I’m considering cutting the jumpers on the control board that allows the MLZ fan to stop when set temperature is reached. Anyone have thoughts on that?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part