Device found, recognizing and then dropping out

[kevin1]

So I’m going to give some advice here based on looking at AC detections for two central HVAC systems in my house over 3 years.

• Don’t try to name them or merge them intelligently for at least a year (one full heating and cooling season).
• In my house there are really 3 separate components but it takes a full year for all variants to get exposed - furnace minus blower, furnace blower only, AC compressor only
• Sense might even see an AC compressor operating under different loading conditions as a new AC detection.
• Putting a smartplug on your furnace unit might help. I have a gas furnaces with 120V plug-in power (yes that’s to code) and have put a smartplug on each. Helps give visibility into the difference between a furnace cycle and blower cycle.

Lots of details in links below

Sense vs. Ecobee: Round II

Back in early April I replaced my Sense monitor unit. Then, in July I replaced both my upstairs and downstairs AC systems, when the downstairs compressor died and the upstairs seemed to have given up the ghost. So I now get a chance to watch the evolution of Sense detection all over again, with a little more pre-knowledge of what to watch for. A few key dates: April 6th, 2019 - New Sense installed - it eventually detects AC, one of both of my old AC units. July 9th, 2019 - The new higher ef…

Sense vs. Ecobee

Now that I know that the correlation between Sense’s output and my utility’s net meter is quite good, on aggregate within 2%, I’m going to look at detection/identification using the same techniques. https://community.sense.com/t/does-anybody-have-any-cool-graphs-or-analytics-using-sense-data-please-share/3302/8 I only have two sets of devices in my house that offer accurate logs of on/off behavior: 2 Ecobees, upstairs and downstairs that offer a full set of HVAC usage on a 5 min interval. Hu…