Not sure about your exact setup so my experience might be different. My air handlers are part of my furnaces and on a separate (120V) circuit from my AC compressors (240V). Sense has detected both compressors and both air handlers over time, but with caveats:
- Even though Sense eventually detected both air handler/furnaces, I put both of them on HS110s before that happened, which is better for me for a couple reasons - 1) they show me furnace components beyond just the air handler and 2) I recently discovered that the detections were maybe 70% reliable.
- The detections for my upstairs AC compressor have started falling off recently. I continuously compare Sense vs. Ecobee using Home Assistant.
