Overactive HR92?

[MrBoy]

We've just fitted 8 of these. So far so good. Except I've noticed the one in our bedroom seems to be constantly adjusting. Lying in bed this morning, every 1-2 minutes I'd hear a short white, just a second or so.
Others in the house are not seemingly doing the same, is it normal?

[paulockenden]

It spends a week or two learning, and is much more active during this period.

[DBMandrake]

It won't be every 1-2 minutes, sampling/wakeup rate on these is about every 3 1/2 to 4 minutes.

So yes, it might potentially make a small adjustment about every 4 minutes, if the temperature is hovering around the set point.

Whether it does make an adjustment every 4 minute interval depends on a lot of factors - you'd need to graph the room temperature to see whether it was oscillating due to overshoots for example.

Depending on those same factor you'll probably find some rooms have a very stable temperature while others may have periodic slight oscillations which you would only notice if you graphed the temperature in high resolution, (not the rounded to 0.5 degrees and biased towards the set point reading the system displays) and those rooms will tend to have more HR92 activity as it tries to keep the temperature at the set point.

Most likely at least some of your other rooms are doing the exact same thing, however these very brief, small adjustments are hard to hear in a normal household environment during the day as they only last about half a second.

[G4RHL]

Comforting sounds though, for you know it is working!