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Last seen: Sep 19, 2024
Some manufacturers do publish operating data performed during standard test conditions. That is the source of data behind the Modeling Tools I have cr...
Don't worry, the neighbours will complain about the noise and then the heat pump will have to be moved or removed. But having been installed it will h...
The temperature sensor will be inside the controller, unless you have installed a remote unit, so will be of no use for room temperature control. Yo...
Where is the controller located?
It would appear that your heat pump is cycling. Is your heat set for a fixed Leaving Water Temperature (LWT), in Weather Compensation (WC) mode, or ...
@cathoderay Excellent data once more. The fact that the OAT reading appears to increase by approximately 5C during the setback period, would make ...
The reason that I mentioned the cycling was because of the fact that it makes doing an accurate comparison between theoretical and actual that more di...
Could you explain the reason for wanting the heat pumps to run in tandem? I would have thought that if the actual heating demand, is not greater than ...
@cathoderay The Modbus registers are two byte 16 bit long. When displayed in binary the left-hand end is normally denoted to be the Most Significant...
@jamespa Sorry James, I forgot to fully answer your query. The WC Modeling Tool infers that Energy Supply will be a product of LWT and the capacit...
@jamespa Yes, the raw data was kindly supplied by CathodeRay, the accuracy of which I am not questioning. My objective is to try to avoid the comp...
AA mode is designed to keep the IAT constant, so to the controller even 1C setpoint change is a large deviation between desired and actual. This is th...
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Degrees of Separation
Latest Posts
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 33 minutes ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 3 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
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RE: Why don't people choose heat pumps?
Fair enough. I guess I was thinking of pipes that run ...
By JamesPa , 3 hours ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 7 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 8 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 11 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
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Six books in three years and I think I’ve now covered j...
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 3 days ago
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