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Old 12-25-17, 03:37 PM   #11
geoff
Lurking Renovator
 
Join Date: Dec 2017
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I did. Appears to be the last item to arrive.

The PLC will trigger the defrost. As jeff5may suggests in another thread, I think I'll give delta-T a try.

Although if I can get a ground-source heat exchanger happening soon enough, I can just switch to ground source if it gets too cold outside and abandon the reversing valve entirely.

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