Issue with Samsung Heat Pump Water Outlet Temperature

[simon_i]

Dear Samsung Community

I'd like to kindly ask for help with an issue with a Samsung Heat Pump.

Model:  AE090RXEDEG/EU

In general - The issue is that the Water Outlet does not reach the set target temperatures - but only for Floor Heating. It works correctly for DHW.

It seems like the Outlet Water - for some unknown reason - can't overreach 35°C. In maximum, the unit maintains temperature between 34.0°C - 34.9°C

I use the "Auto" regime, which is regulated by Water Law. 

Outlet water temperature is NOT regulated by indoor temperature.

There are my Water Law settings:

201* | Outdoor Temp for Water Law (Heat)

Low: 15°C     High: -15 °C

202* | Water Out Temp for WL1 Heat (WL1-Floor)

Low: Target Value: 35°C     High: Target Value: 50°C

Today - It was 0.4°C outdoors, but the Water Output Temperature was regulated to 34°C. Based on the Water Law configuration, it should start at 35°C.

I also tried to manually enforce the temperature by switching to Heat (manual) mode.

I've set 40°C with a purpose to test.

Again - the Water Outlet reached 34.5°C at maximum.

I assume there is some setting that prevents the unit from allowing more than 35°C for Floor heating.

Once again - DHW works well. When the unit operates in the "Water Tank" regime, heating the domestic water, the Water Outlet is usually around 50°C. Therefore I'm sure there's no physical or performance issue of the system.

I also need to mention that the unit was NOT running based on the "Demand" regime.

Any advice will be much appreciated.

Many thanks in advance

Kind regards

Simon 

[Dennis-nl]

I believe there’s a setting to set your max temp for heating. “103* water out. For heat”

[Sim_Be]

Hi Simon,

I'm experiencing similar issues with my newly installed heat pump.

Did you get this issue resolved at all?

Thanks!

[simon_i]

@Sim_Be 

Yes and no

The heat pump simply couldn't reach higher temperatures, as it reached the maximum available power.

I have 17 loops and 300L hot water tank, so it's simply on the edge of its capacity...

In my case it's rather a design problem, then a configuration problem.

Luckily - it seems like the house has accumulated enough heat now, so the room temperature is 22.5 to 24 C, which is comfortable...

Good luck with troubleshooting!