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RadWhisperer
@radwhisperer
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Joined: Oct 19, 2025
Last seen: Dec 20, 2025
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Topics: 0 / Replies: 29
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RE: Mitsubishi Ecodan R290 10kW performance

If the Delta T is easy to configure then just try it as you appear to have very good data collection as standard. So if the pumps are external and not...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

@jamespa Small mid-terrace so everything is is in closr proximity. Only thing I could do is try to swap the cheap plastic pipe clips for rubber isolat...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan R290 10kW performance

My 4KW Daikin will heat my 180L tank in 30 mins to 48C. Most likely less demand but in the ball park. The COP is not as mine reports 2 at worst. I o...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

After installation the system did develop a noise in the volumizer and that turned out to be a bleed valve. Which when fixed caused a squeal in the ba...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

So after a week of playing with the LWT mode I'm now back to setting my WDC LWT minimum flow temp to 25C. Below this the HP does not resume reliably t...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

This is how Adam from Heat Geeks advocates as the best way to set up a heat pump. Then, once you've established a decent WDC matched to your property'...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

@jancold   Not a plumber but I believe that is the blending valve and pressure regulator. No experience on how to adjust it. Another thoug...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

Have you considered the Thermostatic Mixing (Blending) Valve (aka Anti-Scald or Tempering Valve) that mixes the hot water with mains to control the te...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?

This is how Daikin run their heat pumps. Weather Compensation + Thermostatic control = Water pump runs Continuous or OnDemand (default) - configurab...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

Enable installer mode - 5678 Enter the Space Heating/Cooling menu Enter Pump Operation Mode - Select Continuous or Sample (default) Enter Pump ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

I think it's worth adding here that when you enable the Daikin LWT mode the pump switches from demand/request to sample. That means the pump will cycl...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Rate the quality of your heat pump design and installation

More like Octopus wanted to fit a Cosy 6 at the end of the garden, avoid planning permission and re-use the tiny airing cupboard. My preference was to...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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