Wednesday, 7 September 2022

MXZ Series Branch Box with Blue Diamond Pump

Greetings.

I am installing a mitsubishi MXZ series outdoor unit to several M-series indoors with a 5 port branch box. Some units are requiring a condensate pump, so I went with the Blue Diamond MaxiBlue.

Both Mitsubishi and Blue Diamond have different special application notes for wiring that requires splicing in the nomally closed safety circuit wires into the coil thermistor wire on the unit.
Mitsubishi says to break RT12, but Blue Diamond says break RT11.

Had anyone wired one if these? Should I break RT11 or RT12? What does the final wiring looking like?

Thanks!


source https://hvac-talk.com/vbb/threads/2242345-MXZ-Series-Branch-Box-with-Blue-Diamond-Pump?goto=newpost

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