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HughF
@hughf
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Noble Member
Joined: May 2, 2022
Last seen: May 5, 2025
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Topics: 6 / Replies: 482
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RE: 12kw Samsung gen 6. Short cycling

If you wired it up with a pwm primary pump and used the samsung controller directly, I'd expect you'd see that COP up between 4 and 5 in the current w...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Buffer tank required? Samsung 12kW heat pump

@cathoderay I've modified Freedoms calculator (tweaked the w/m2 value) to size my rads for a 45 degree flow temp and I'm shooting for 35% oversize in ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Buffer tank required? Samsung 12kW heat pump

@cathoderay Similar to our install, 1946 block/block construction with a 2" cavity, that has been blown. Double glazing, suspended timber floors an...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Buffer tank required? Samsung 12kW heat pump

Attached is the samsung gen6 manual as supplied by midsummer wholesale. Their installation instruction and wiring is more advanced than that from Joul...

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

I doubt you'd get a meaningful answer from the installers.

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

Samsung mono controller manual attached, this clearly shows the connection for external PWM pump control, Connection 10 on the main PCB. It even say...

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

Whether it will make a whole lot of difference to your COP remains to be seen, but usually, with a modulating compressor (all modern ASHPs are inverte...

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

From looking at two samsung installation manuals, one from Joule (that because of an ssl certificate issue, I couldn't download) and one from Secon re...

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

It's not a pump that's controllable by the ASHP so it's not something to mess with. The manual for that pump is attached for your information.

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

All decent, modern ASHPs have speed and hence flow rate control of their pumps (except it would appear, Samsung): This article by Graham Hendra cov...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Need help explaining how my ASHP heats home vs. water

You should use the TRVs in the upstairs rads to limit the temperature in those rooms, yes. You should remove the actuator heads from the downstairs TR...

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

That's unfortunate, it means the ashp doesn't have any PWM control over the primary pump. A bit 2005.... I'd have expected more from Samsung to be hon...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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