Forums

Forums
Renewable Heating
Air Source Heat Pum...
Is this normal beha...
 
Notifications
Clear all

Is this normal behaviour for my samsung ashp

 
Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 6 months ago
4 Posts
2 Users
0 Reactions
457 Views
RSS
 wawyed
(@wawyed)
New Member Member
Joined: 6 months ago
Posts: 2
Topic starter 09/01/2025 6:46 pm  

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

 

image

 

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


   
Quote
bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 3 years ago
Posts: 832
10/01/2025 4:31 pm  

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

 

image

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
ReplyQuote
 wawyed
(@wawyed)
New Member Member
Joined: 6 months ago
Posts: 2
Topic starter 10/01/2025 6:24 pm  

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

 

EDIT: Just checked it's a Grundfos UPM4

This post was modified 6 months ago by wawyed

   
ReplyQuote



bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 3 years ago
Posts: 832
11/01/2025 11:17 am  

@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

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

Join Us!

Trusted Installers

Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.

✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available

👉 Find your installer now!

Latest Posts