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RE: Commencing on an ASHP Installation Process
By Sheriff Fatman, 6 days ago |
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I should perhaps have mentioned this in my post, as I'd factored this in to how they are set up. There's an expectation of a temperature drop of 5°C on the morning cycle, which should only be trigger... | ||
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RE: Commencing on an ASHP Installation Process
By ASHP-BOBBA, 6 days ago |
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@sheriff-fatman Perfectly clear it was very positive, like all these new systems they get better with every update. We are starting to install Havenwise to our systems and want to see what it can do i... | ||
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RE: Commencing on an ASHP Installation Process
By HCas, 6 days ago |
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@sheriff-fatman , @jamespa , @ashp-bobba : Thanks for all the feedback and input! You touch upon the fact that DHW (domestic hot water) seems simply on the surface, but is actually quite complex. Ther... | ||
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RE: Commencing on an ASHP Installation Process
By Sheriff Fatman, 6 days ago |
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I couldn't see a way to detach one element from control without the other, but perhaps that's just a case of me not looking closely enough. I did mention to @hcas that I was planning to post a user ex... | ||
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RE: Mitsubishi cycling while on chilled water output
By ASHP-BOBBA, 6 days ago |
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@jamespa you are so much faster than me, happy to see great minds know the same stuff 🙂 | ||
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RE: Commencing on an ASHP Installation Process
By Sheriff Fatman, 6 days ago |
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Yes, the priority for now is to best match the usage patterns in the house. There is a demand for evening showers as well as early morning ones, and it was fortunate that I was able to pick up on thi... | ||
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RE: Mitsubishi cycling while on chilled water output
By ASHP-BOBBA, 6 days ago |
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@downfield Hmm, with the 12Deg C it may be an overshoot, they do cycle down and overshoot slightly if they cant chase the DT across the plate HX, I would not be surprised at 1 or 2 Deg but 3 seems a s... | ||
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RE: Mitsubishi cycling while on chilled water output
By JamesPa, 6 days ago |
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Overshoot due to small system volume, with a control loop that assumes a larger volume? Just a guess. I think Mitsubishis cooling capacity tables might include min output, their heating ones certainly... | ||
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RE: Commencing on an ASHP Installation Process
By ASHP-BOBBA, 6 days ago |
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@sheriff-fatman Just to add to what James was saying, I think you can also opt to not have Havenwise control the hot water and just the heating, that said the team at Havenwise are constantly developi... | ||
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RE: Mitsubishi cycling while on chilled water output
By downfield, 6 days ago |
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We have the equivalent of 8x Strada rads which absorb around 650W each on max fan speed at a room temp of 27C with flow @16C and return @18C according to the specification. We also have 3x 1800mm tren... | ||
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RE: Mitsubishi cycling while on chilled water output
By ASHP-BOBBA, 6 days ago |
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@downfield Ah, sorry I didn't realise you had fan assisted convected radiators, I read the data sheet and see that these are non condensing so the flow needs to stay slightly higher in cooling but it ... |
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