What flow temperatures are you currently running?

How often does your heat pump defrost at these temperatures? Mine defrosts every 30 minutes. Somehow strange. Because of this, the radiator target temperature is also not reached, as the radiator temperature drops due to defrosting. It is a cycle.

I am currently running 0.2 with +1°C parallel shift. Defrosting runs approximately every hour. Currently surprisingly high total power consumption. Unfortunately, the preheating element of my ventilation has probably switched on.

I am currently running 0.2 with +1°C parallel shift.

Defrosting runs approximately every hour.

Currently surprisingly high total power consumption. Unfortunately, the preheating element of my ventilation has probably switched on.

Every hour is plausible to me, but every 30 minutes? What is your heat pump currently consuming?

	AT	Flow temperature
	20	26
	15	27
	10	28
	5	29
	0	30
	-5	31
	-10	32
	-15	33
	-20	34

AT = Outside temperature
Vorlauf = Flow temperature (setpoint)

I have parallel shift +6 and slope 0.2

what does Parallelverschiebung +6 mean?

i am currently driving at -7°C with a flow temperature of 34°C

This morning the heating measured -4.5°C outside temperature (Apple claims -6) and 30°C are going into the supply.

If I were you, I would check whether Apple is actually right ;) I just set the correction value to -3° yesterday in the presence of the service technician, because the heating’s temperature sensor has been measuring incorrectly since installation (always higher than actual). There is a point called "Korrekturwert" in the menu for this.

I am currently running 0.2 with +1°C parallel shift. Defrosting occurs about every hour.

We have the same heating system. Where do you set the parallel shift? Where do you read the frequency of the defrost cycles? :)