Control TRV by setting target temperature (e.g. 5C / 40C) #1558
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Currently I'm using smart_thermostat with a plug relay and a temperature sensor. I'm a HA newbie and I'm looking into integrating my TRV into the picture with the external temperature sensor. I have these TRVs and HA can control them fine. But apparently all I can do is to set the target temperature. So to tell it to turn off I have to set a low target temperature and vice versa. There is this switch in the device info page but it won't do anything. So I understand a thermostat system with an external temperature sensor would have to set the target temperature on the TRV, right? To 5/40 C for example. Please let me know if I'm mistaken. If so, can better_thermostat help me do this? It would be nice if I could create a "virtual" device in HA that abstracts this target temperature on/off thing away. I'm a HA newbie. |
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Replies: 2 comments
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BT is here to combine a TRV climate entity with a seperate room temperature sensor entity, to regulate the room temperature more precisely. Depending on the mode, it will more or less compensate the temperature difference between the TRVs temperature sensor and the external sensor, either via a "local calibration" offset parameter of the TRV, or offseting the TRV target temperature. All BT knows about, is the climate entity, and modes (can/would toggle the mode you see above between "heat" and "off", when reaching the target temperature). You set a room temperature, and BT will try to control the TRV accordingly to achieve that (and a bit more sophisticated than jumping between min and max temperature only). The entity you have in the screenshot, looks like a heater/boiler or heat pump system, I mean that's 39°C, going up to what, 100°C? That's not what you should control with BT then. |
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This is exactly what I had in mind, thank you. The screenshots are from what I automatically get when I add my TRV to HA. It's silly that they used such a high max temperature. Thank you so much, I'll give it a try when I can. |
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BT is here to combine a TRV climate entity with a seperate room temperature sensor entity, to regulate the room temperature more precisely. Depending on the mode, it will more or less compensate the temperature difference between the TRVs temperature sensor and the external sensor, either via a "local calibration" offset parameter of the TRV, or offseting the TRV target temperature.
All BT knows about, is the climate entity, and modes (can/would toggle the mode you see above between "heat" and "off", when reaching the target temperature). You set a room temperature, and BT will try to control the TRV accordingly to achieve that (and a bit more sophisticated than jumping between min and ma…