ᐅ Getting an air-to-water heat pump to operate at 24 degrees Celsius outdoor temperature

Created on: 2 Jun 2021 21:10
T
Tx-25
T
Tx-25
2 Jun 2021 21:10
Hello,

the outside temperature is 24°C (75°F). However, I want to start my air-to-water heat pump to dry a very small moisture damage on the bathroom floor. One joint was slightly leaking.

I increased the outside temperature limit to 30°C (86°F) maximum. I also raised the comfort temperature of the heat pump for indoor rooms from 20°C (68°F) to 30°C (86°F). Additionally, I increased the heating curve from 0.2 to 1.0 maximum. The valve actuators are operating, meaning there is flow. I disconnected the ERR after the hydraulic balancing.

However, the pipe in the underfloor heating manifold does not even get warm to the touch. What else can I adjust to get some more power into the system? The bathroom temperature has increased by 2°C (4°F) since Monday. I suspect this is mostly due to the outside air. The bathroom floor feels neither warm nor cold.
N
nordanney
2 Jun 2021 23:33
How about simply setting a constant supply temperature? Every heat pump should be able to do that, similar to screed drying.