Forums

Forums
Renewable Heating
Air Source Heat Pum...
Grundfos CH circula...
 
Notifications
Clear all

Grundfos CH circulation pump

 
Air Source Heat Pumps (ASHPs)
1 Posts
1 Users
0 Reactions
699 Views
RSS
 DavidAlgarve
(@davidalgarve)
Reputable Member Member
Joined: 1 year ago
Posts: 107
Topic starter 21/12/2023 10:56 am  

I have a Grundfos UPM2 25-70 180 pump, circulating from a buffer tank with no means of checking or changing speed and I suspect the flow is not balanced to Ecodan.

There is no cable connected to what I suspect is the PWM 3 pin connector.

Could someone please advise on what is required to introduce PWM and thus vary the speed, possibly with speed indication

I am reasonably tech-savy but have no experience of PWM


   
Quote
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

Members Online

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →