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iancalderbank
@iancalderbank
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Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

@squonk further to my previous note regarding pipe swap: If the system has glycol in its not as simple as I described. Plenty of info googleable for ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

@derek-m no worries! have to say though this one is a perfect demonstration case for "don't assume; check the basics; measure it to be sure". Its only...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

@derek-m the OP already said, the installer was out of his depth and has since retired so the "back to the installer" option doesnt work in this case....

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Samsung ASHP scheduling help

ok, my intent is put an ESP8266 with a CT clamp around the main power inside the outdoor unit. as I feel that's easiest place to get at the main power...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

@squonk It must be the case that the direction of flow on your two connections to/from the ASHP, on the left side of the buffer, is the opposite of wh...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Samsung ASHP scheduling help

how are you guys calculating COP with the samsung? I don't see a modbus register for energy (input or output)? are you doing input= electrical ene...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Vaillant Arotherm monobloc error f.788 - ASHP is not working!

@william1066 so my system did the experiment for me today. I currently have a commissioned ASHP, the flow side goes to a 50L volumiser, then there i...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Samsung ASHP scheduling help

@redzer_irl yes, I tried the exact same location as you have done for mine as it seemed designed for the board, right size mounting socket. but the bl...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Samsung ASHP scheduling help

@steven Thanks very much for posting your ESP config on github. I just copied it into mine and it worked first time 🙂 I'm using an ESP8266-12F pre...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Poor location for ASHP, how much of an issue is it with respects to efficiency?

@rumballd so if it was facing out when you viewed the house, that's your quickest option, it suggests the pipework will cope with that rotation. Elect...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Poor location for ASHP, how much of an issue is it with respects to efficiency?

are you 100% sure they are within specs? Do you have a specific link to the document that says so? the unit I'm installing for myself has a min cleara...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Heating engineer costs

@mike-h yep, I have the sealant and the special brackets. interesting technique to learn fitting the pipes without using any pipe clamps only insulati...

2 years ago
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Air Source Heat Pumps (ASHPs)
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