Two final steps now that I have completed the month of July.
- I’m going to calculate the closest device correlations to both upstairs and downstairs Ecobee runtimes, by month.
- I’m going to look at the mix between good correlations, bad correlations and missing data for the Ecobee/device pairs that appear to be connected.
First the month by month correlations. NAs represent months where there was no valid data that the same time between the Ecobee and the device detections (one or both for that time period were NAs)
Upstairs
Initially AC and FurnaceUp devices correlate most closely with my Ecobee turning the AC on, but that’s based on very little air conditioning usage in April. AC2 shows up in May and begins to take over. Things are very mixed in in June, but that might be due to us putting more freon into the unit around June 11th. AC2 rises to top in July, perhaps because it is closer to the profile of my new more efficient compressor. I’m hoping that the signal / correlation gets stronger in August.
FurnaceUp stays closely aligned with Up_Cool through all the time because it’s using a smartplug. There’s bound to be a little mismatch because my fan/furnace is set to come on at least 5 minutes per hour, even when my Ecobee isn’t calling for AC.
$`2019-04` Up_Cool AC 0.9848766 FurnaceUp 0.9769824 FurnaceDown -0.1541840 AC2 NA AC3 NA $`2019-05` Up_Cool AC 0.9851462 FurnaceUp 0.9772373 AC2 0.1661719 FurnaceDown 0.1412279 AC3 NA $`2019-06` Up_Cool FurnaceUp 0.9892451 AC 0.7441818 AC2 0.7314602 FurnaceDown 0.5909811 AC3 NA $`2019-07` Up_Cool FurnaceUp 0.9850746 AC2 0.6176325 FurnaceDown 0.5118411 AC3 0.4237348 AC 0.3627760
Downstairs
Downstairs is easier to figure out than upstairs. All correlation with AC devices in Sense-land was pretty much coincidental until Sense “detected” AC3, which correlates very strongly with my Ecobee’s Down_Cool command.
$`2019-04` Down_Cool AC NA AC2 NA AC3 NA FurnaceUp NA FurnaceDown NA $`2019-05` Down_Cool FurnaceDown 0.9645780 FurnaceUp 0.3849021 AC 0.2430033 AC2 NA AC3 NA $`2019-06` Down_Cool FurnaceDown 0.9923947 AC2 0.7628676 FurnaceUp 0.6044697 AC 0.1213893 AC3 NA $`2019-07` Down_Cool FurnaceDown 0.98625399 AC3 0.97380936 FurnaceUp 0.51139072 AC2 0.42605800 AC -0.08355149
NA Statistics for Downstairs
Here’s a table of Down_Cool and AC3 hourly values for the two different states of the Downstairs Furnace Fan running (IDLE and ACTIVE), after AC3 was first detected. Looking at the number or hours of detected vs. missed by Sense, I need to look for the places where the Furnace Fan is ACTIVE and the Ecobee runtime is POSITIVE. 207 hours of good detections, 31 hours missed. There might also be 7 false detections where Ecobee didn’t call for cooling but Sense saw some usage. I label this detection as “Pretty Good”. Let’s hope it continues into August !