Hi Dave,
Right, so it’s good that the DHW cycle worked OK but it did get interrupted by a couple of defrosts.
Interestingly I’ve been contributing to a parallel thread from someone else having defrosting issues in recent days, with a NIBE F2040: Help about defrosts please - NIBE F2040 + SMO S40
One conclusion from that thread is that having the BT25 sensor located upstream of the Diverter valve (rather than on the Central Heating leg downstream of the valve) will definitely be misleading the Degree Minutes algorithm. Sam commented on that before although it’s tough to be sure of the location from the photos, given the insulation. If your BT25 sensor is strapped to the pipe immediately above your Heat Meter that’s not right; it wants to be on the Central Heating Flow pipe downstream of the Diverter valve.
If you want to try the Python scripting, I’ve written up a procedure on my blog site. It looks a bit long-winded and complicated but really it boils down to just a few steps:
- The write-up is here: NIBE Heat Pump Monitoring via myUplink API | Marsh Flatts Farm Self Build Diary
- The sample code is in GitHub here: GitHub - MarshFlattsFarm/myUplink-API: Scripts and Utilities for working with the myUplink API
The catch is you’ll also need somewhere to store the data that comes back from the API, which might make for a steep learning curve in the short term - unless you already have that in hand.
@etchelsa May I suggest you send Dave your myUplink email address in a private message, so he can add you to his system.
David