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RadWhisperer
@radwhisperer
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Eminent Member
Joined: Oct 19, 2025
Last seen: Nov 10, 2025
Profile Activity
Topics: 0 / Replies: 19
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RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs?

Or a minimum standard for data collection. The Daikin MMI gives unusable graphs on the tiny MMI interface. There are sums for input and output on diff...

2 weeks ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂

My MMI is in the loft but I checked the pump flow rate when running the DHW cycle and it was 25 l/h and I could hardly tell it was running. So now I k...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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