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Joined: Jan 20, 2022
Last seen: Oct 26, 2026
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Topics: 16 / Replies: 3422
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RE: 12kw Samsung gen 6. Short cycling

OK... so the point being made in the manual is that an 'ordinary' domestic central heating pump gets operated with a PWM signal, provided that it is c...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

I'm pretty sure that @mike-h 's Pump-2 is a UPS15-20 (or -30) which is the type most commonly used for domestic radiator circuits. It's likely to have...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Mike H's set-up (details to follow pending any additional photos) And here's the relevant installation diagram from the Grundfos manual for Pump-2...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

I'm adding the annotations for everyone else... ... especially those who will arrive at across this topic in the months and years to come 😉 Annot...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Let's label a few bits:

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Salamander make pumps for pressurised showers. Some have automatic pressure regularisation, which enables them to deliver hot and cold evenly when dra...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

There's a measure of truth in this. The one thing that they didn't do was to create a public survey/consultation from which to learn 'best practice'. ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

I'd suggest you order component parts from the right sort of supplier. If you know what's the part you require, then try BES. If you're unsure, th...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

The better option is for them to fit control systems which can be monitored remotely. That enables them to check temperatures, flow-rates and efficien...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

For interest and comparison, here's a photo inside the connection cabinet of a ground-mounted substation transformer: The centre columns between F...

4 years ago
Forum
Energy Storage
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

Yes, I'd be happy with what you're attempting using the NH type 00 fuses. I've just ordered some fuses made by Miro to try. They're type RG4a, with ...

4 years ago
Forum
Energy Storage
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

The fact that it's storage isn't the salient point. G98, G99 and G100 are rules relating to devices which export to the grid. If your storage batt...

4 years ago
Forum
Energy Storage
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