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I dont know if IP app allows to dig so deep, but officially recommended config for WHS2 (via CCU) is
below
This will never "leave" device" in ON position, if there is no demand.

Gas boiler has contact 230V for heating on/off. Mixer will be just on/off. I assume I must use HmIP-WHS2 to do that? While all described sounds reasonable, could you provide more details on exact purpose of those contacts group, as it described by manufacturer? This should also help to clarify conc...

No issues at all. Except that this PCB is designed for work out of battery => this may cause different kind of surprises, just keep this in mind
I also used similar setup viewtopic.php?f=49&t=46514&start=30

Inquirer8087 hat geschrieben: ↑

09.12.2019, 14:30

Damn, pretty old bug! I think i'll stick with the 2 degree lower setpoint. Buying a WTH-2 to control a single radiator doesn't make sense.

I got to the same conclusion...

Hey guys, i'm having some very strange problems with my eTRV-B's. Got them a month and a half ago from cyberport (HmIP-SK9) an it seems that they are constantly overshooting the set point by 2-2.5 degrees when the boiler turns on. .... If i pair the eTRV-B with a WTH-2 it's tracking just fine. I ha...

I would not expect any issues in eq3 default - DE timezone (UTC+1)

forgot to publish solution to my issue with timezone handling (I'm in GMT+2). As refresher: I had following settings for HmiP devices: UTC offset - 120 UTC DST offset - 60 And all was fine until i made CCU3 firmware upgrade. After, I noticed that while HM devices continued running on schedule, all H...

I have been thinking on the same, for me it appears more interesting to switch heating profile for devices, for example via Heating Group.
It would be great to hear suggestions from more experienced folks, covering HM and HmIP devices..

Sent problem description to eq3.

If we have anyone here, who also use CCU3 on timezone other than GMT+1, let me know...

Again got in to troubles with HmIP and it seem to be related to timezone/DST change :cry: To remind, my current setup: CCU3 based system with: 1) few sets of HmIP-WTH-2 + HmIP-eTRV-2 on first floor 2) few sets of HM-TC-IT-WM-W-EU + HM-CC-RT-DN on second floor All worked fine whole winter. BTW, I'm l...