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Mitsubishi Ecodan PUHZ-SW120 & EHSC -VM20 on 3 phase power question

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(@davidalgarve)
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Mitsu PUHZ-SW120 & EHSC -VM20

Has anyone any access to power readings when at rest on a 3 phase ASHP?

I have just installed a Shelly 3EM 3 phase Power Monitor and am somewhat surprised that, at rest, the readings are unbalanced at:

Phase A=0; Phase B=11.31; Phase C=106

When producing heat, the readings are much more balanced.

What, if anything does that indicate?

 

This topic was modified 10 months ago by DavidAlgarve
This topic was modified 10 months ago by Mars

   
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