guckuck2
2020-12-28 08:44:55
- #1
Primarily, I simply don't want to have the analog controllers installed, as I find them very inaccurate in our current apartment. Therefore, I prefer to have a digital display so that I can set the temperature here more precisely. It could have been that a special temperature controller needs to be installed for our Daikin air-water heat pump.
The heating technician can tell you whether there are system-specific controllers. For us (Weishaupt) there was something like that, but it is not used to control individual rooms; instead, it shows system statuses. Additionally, you can switch from an outdoor temperature-controlled to an indoor temperature-controlled regulation of the heat pump (we also did that, but via KNX and not with the clunky system device from the manufacturer).
However, I assume you are talking here about the controllers for each room (ERR). These are normally independent of the heat pump manufacturer, since the ERR does not communicate with the heat pump but with the actuators in the heating circuit distributor.
Don’t expect too much from a temperature setting in the decimal range. As I said, the imprecision lies in the system itself. The actuator on the heating circuit can only be "open" or "closed." There’s no in-between. That means the controller will always compare its target value with a (self-measured) actual value and open or close the valve within the scope of a hysteresis. This naturally "oscillates," since the low-temperature underfloor heating is an inert system.