ᐅ Correctly Setting Up an Alpha Innotec Heat Pump

Hello dear community,
we are now the proud owners of an Alpha Innotec heat pump Jersey 5. However, I have some concerns that it might not be set up correctly, because in our bathroom (set to 6) the temperature only reaches a maximum of 21.5°C (71°F). In contrast, the living room easily reaches 23°C (73°F) with the thermostat set to 4.
By the way, this is a radiant floor heating system installed on two floors. The bathroom is on the second floor.
I have now been logging data from the system for a few days.

Perhaps there is a heat pump expert here who could take a look and help me out?

Thank you very much
Benjamin

derbenzi schrieb:

we are now happy owners of an Alpha Innotec Jersey 5 heat pump.

How did you decide on the heat pump? Is it for a new build or a heating system replacement? That leads to the question about room-by-room heat load calculation and the hydraulic balancing. Was any of that done, or was the heat pump just installed and you left to manage on your own?

derbenzi schrieb:

(set to 6) only reaches a maximum of 21.5 degrees. Meanwhile, the living room easily reaches 23 (set to 4).

Room thermostats? Perhaps as the thread progresses, we might find that all of them are set to 6 or maybe even removed. Such a device doesn’t regulate the temperature in a traditional way but simply opens and closes the floor heating circuits. And if the heating system is properly designed (hence the question about the heat load calculation and hydraulic balancing) and functioning correctly, you shouldn’t need to adjust anything.

I think (or fear) that the first step should be addressing the hydraulic balancing (after checking in the heat load calculation whether the desired temperature can be reached in the bathroom at all — meaning, are there enough underfloor heating pipes installed?). Then you can fine-tune the heat pump.

Hello, yes, it is a new build. The heating system was installed by a company.
Yes, there are thermostats numbered 1 to 6 in each room.

Works. I just quickly checked the underfloor heating design.

If the underfloor heating can only deliver about half of the required output in the bathroom, it won’t be able to reach 24 degrees Celsius (75°F). An additional heat source is needed for that (electric wall heater or similar) — is one available?
The pipe spacing in the bathroom is only 10 cm (4 inches). With 5 cm (2 inches), the underfloor heating would provide enough output.

nordanney schrieb:

If the underfloor heating can only provide about half of the required output in the bathroom, it can't reach 24 degrees Celsius (75°F). An additional heat source is then necessary (electric wall heater or similar) ==> available?
The tile spacing in the bathroom is also "only" 10cm (4 inches). With 5cm (2 inches), the underfloor heating would deliver enough power.

Well, great, then we probably weren’t properly advised, or it was simply overlooked. No, at least for now, there is no additional heating installed.

derbenzi schrieb:

Great, so it seems we were not properly advised, or it simply wasn’t taken into account. No, there is “at least for now” no additional heating system installed.

A clear yes. You need to discuss this with your heating contractor / general contractor or whoever handled the planning. At any rate, whoever was responsible for the design.

Sorry to be the one to bring this bad news first.