Ämne: Nibe SVM S332 AMS20 High Degree minutes

[artbess]

Hello Experts,

Could you please to find the reason why my system Degree minutes drop every night more than -800DM.
The compressor start set to -120DM but seems it is ignored by the system and it does not start during night time at all.
During the night time the house temperature drops for 1.5-2C and in the morning I can see that all the floor heating circuits are open on manifolds. There is no scheduling or any other working restrictions set to the system. No alarms.

[Carl N]

Is there any information messages?
You should always have the floor heating circuits open, all time, set them to max temp.
It may be some issue if they all close in the evening, the heat pump need open circuits if it produce heat.
You must adjust the heat inside with the curve and set it down if the temperature gets to high.