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Rod

@rod

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Joined: Jan 9, 2023
Last seen: Oct 11, 2024

Topics: 1 / Replies: 23

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RE: Heat pumps and on/off working - starting to quantify it

We have some towel rail radiators which are connected directly to the HP flow/return and mixing valves ar the underfloor manifolds - I would expect th...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

I use one of these with the device in a fused-spur surface-mounted box next to the consumer unit, and the sensor clamp around the live to the pump in ...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

It would be useful to see the real-time energy going into the pump from a Watt meter, it might show something. I attach one of mine below, mine also c...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

For my system, the issue with a setback isn't so much the LWT, it's the delta between the LWT and RWT: the compressor runs a lot harder in the warmup ...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Looking for an Ecodan Expert

@tfb8 If the Winda is still sending control signals, then the relay setting for the Wunda zones must still be set in the Wundasmart app; You can remov...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Looking for an Ecodan Expert

If I'm understanding you right, are you saying you just want to control the system off one thermostat? If so, you can do this using the WundaSmart app...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Ecodan Minimum Run Time, Flow & COP

@kev-m Yes, it's in heating mode. For reasons I still don't understand the HP can spin up to do a DHW cycle when the tank temp is very close to setpoi...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

Following some of John Cantor's videos explains why cycling gently (2-3 times/hr) is actually just creating an average lower flow temp. Our pump cut...

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Ecodan Minimum Run Time, Flow & COP

Mitsubishi provided the flow chart below, after quite a lot of back-and-forth trying to explain the high flow temps and power spikes.

2 years ago

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Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

We're at over 6 some days, with low flow temps between 23 and 25 - happy days!

2 years ago

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