I just updated my seven TRVZB thermostats, controlled by six external SNZB-02D sensors, which are also up to date. However, I find it unfortunate that we still can’t adjust the lower threshold for a TRVZB to activate the heating. Currently, if the maintenance setting is set to 19°C, we have to wait until the temperature drops to 18°C for the TRVZB to activate the heating, even though the external sensors frequently send temperature readings. This isn’t very convenient for maintaining a constant temperature. Why not have the option, for example, to set thresholds on the TRVZB in tenths of a degree, or even half a degree? For instance, if the temperature is set to 21°C, and it drops below 20.8°C on the SNZB-02D, the TRVZB would activate the heating. What are your thoughts?
Hello.
I partially solved this issue in the following way.
I also have a Sonoff ZPBridge-P Zigbee interface with the Ewelink Android app.
So I temporarily paired my TRVZB devices on this interface, then set their trigger threshold to 0.2 °C via the Temp Accuracy menu, and then I re-paired my TRVZB devices on the Ewelink Cube of the I-Host (which does not include this settings menu).
However, it works: the TRVZB devices kept the 0.2 setting.
Of course, this method is not very convenient, and I had to recreate all the scenes, but fortunately this is not a setting that needs to be changed often.
This morning I noticed that the TRVZB (in manual mode) didn’t detect an open window. What’s more, it even opened the valve and started heating while I was airing the room.
When I realized it, I lowered the temperature, but I don’t think that’s how it should work.
