Is this normal behaviour for my samsung ashp - Air Source Heat Pumps (ASHPs)

RE: Is this normal behaviour for my samsung ashp

bontwoody — Sat, 11 Jan 2025 10:17:11 +0000

@wawyed Thats the only thing I could think of that might account for the difference. It looks odd but I doubt its affecting COP much

wawyed — Fri, 10 Jan 2025 17:24:36 +0000

Yes, I believe it is. The flow rate seems to change on the monitoring.

EDIT: Just checked it's a Grundfos UPM4

bontwoody — Fri, 10 Jan 2025 15:31:04 +0000

@wawyed Mine isnt doing that, is your water pump PWM controlled?

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wawyed — Thu, 09 Jan 2025 17:46:56 +0000

I've just noticed the following behaviour on the heatpumpmonitor and I was wondering if someone could tell me if it's normal:

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You can also see it here https://emoncms.org/app/view?name=MyHeatpump&readkey=b3a7b99ad8fc6d53a53fd4182026dd92

I know heat pumps try to modulate so maybe it's just that just looks a bit weird on the monitoring the constant fluctuation of COP and flow temp