Hello, I have had the Weishaupt split heat pump LS 8 B R E since July, so far only used in summer mode. Today I switched it to heating mode, and the heat pump cycles on and off 6 times between 4 a.m. and 11 a.m. What options do I have to reduce this cycling?
I am new to heat pumps. It is a 120m² (1,292 sq ft) mid-terrace house with 9 radiators, no buffer tank installed. What settings can I use to minimize the heat pump cycling? What settings do you use in the transition period? I would appreciate any tips.
Best regards
I am new to heat pumps. It is a 120m² (1,292 sq ft) mid-terrace house with 9 radiators, no buffer tank installed. What settings can I use to minimize the heat pump cycling? What settings do you use in the transition period? I would appreciate any tips.
Best regards
Tolentino schrieb:
No one will explain why my posts with important notes and questions were immediately deleted.
Questions for the OP:
Why is it set so warm? Is it an existing building where the heat pump was retrofitted?
The cycle duration seems just acceptable; it’s rather strange that it restarts so quickly.
Do you find a point with hysteresis? House built in 2000, heat pump installed since July. Could hysteresis possibly be the switching differential in Weishaupt?
R
RotorMotor16 Oct 2023 14:42@KarstenausNRW how does a Pana prevent short cycling?
KarstenausNRW schrieb:
Just reading settings like "rest mode 75%" and so on makes me feel sick. Why do most heat pumps come with such ridiculous controls? (The Vaillant thread with 529 pages is something else too).
Sorry, I can't help you there. My heat pump doesn’t have any of those settings. The Panasonic system is much simpler without such nonsensical options.
I activated rest mode because I thought lower output would mean longer run times. Tolentino schrieb:
Maybe. No idea. Just try increasing the cycle lockout time (180 minutes?). That seems to be the hysteresis, sorry, I should have added it:
Yes, you can try both options. Set the switching differential to around 8 and increase the cycle lockout time. If you also set the standby mode to 45, it might run more consistently. However, it could also become too cold.
Has a room-by-room heat load calculation been done?
Has a room-by-room heat load calculation been done?
Tolentino schrieb:
Yes, you can try both options. Set the differential to around 8 and increase the cycle lockout. If you then set the standby mode to 45, it might run more continuously. However, it could also cause the temperature to become too low.
Has a room-by-room heating load calculation been done?I just noticed that the supply temperature and return temperature are quite close. The return temperature only drops when the heat pump turns off. The heating circuit pump speed is set to 80 percent of the maximum. I will try lowering it to 60 percent; maybe that will help.Similar topics