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Mars RE: Load Compensation and Weather Compensation  

By Mars, 4 weeks ago

  @andrewj, you’re absolutely right that these systems work best when the house is well balanced and properly designed from the outset. Even with compensation enabled, issues like oversized emitters in ...
RE: Load Compensation and Weather Compensation  

By JamesPa, 4 weeks ago

  The other important point about wc is that the controller gets the signal to change what it is doing at the same time as the principal driving factor (OAT) changes. This means that it changes in time...
RE: Load Compensation and Weather Compensation  

By AndrewJ, 4 weeks ago

  I think this is only part of the key information on this topic that is missing from the video conversation - I can only see this working in a system that is well balanced such that other rooms are abl...
RE: Load Compensation and Weather Compensation  

By JamesPa, 4 weeks ago

  Surely you can 'correct' a mildly oversized rad by turning down the lsv during the balancing process? Certainly that's what I did with my installation. Obviously not ideal but, given the scatter in ...
RE: Load Compensation and Weather Compensation  

By JamesPa, 4 weeks ago

  As @ashp-bobba says there are lots of variables. My house takes 3-6hrs to change temperature by a degree. I have one room with a fancoil that responds faster. The question hardly ever arises, other...
Mars RE: Load Compensation and Weather Compensation  

By Mars, 4 weeks ago

  @andrewj I see there have been a lot of replies already, and the video is attracting a lot of comments. My two cents worth: Weather compensation adjusts the flow temperature of your heat pump based on...
RE: Load Compensation and Weather Compensation  

By AndrewJ, 4 weeks ago

  Fair enough, sort of what I was expecting really. Thanks for your input, it's been very helpful.
RE: Load Compensation and Weather Compensation  

By ASHP-BOBBA, 4 weeks ago

  @andrewj Oh, thats a good one, so the answer is subject to what power and recovery you have for the room/s assuming its typicly balanced and has the capacity to climb another deg as a lot of system ar...
RE: Getting the best out of a heat pump - is Homely a possible answer?  

By benson, 4 weeks ago

  @johnmo yes. This is effectively what some of us are doing to access the dashboard. You don't have to recommission it, but then again this would presumably remove previous installer access as you say....
RE: Load Compensation and Weather Compensation  

By AndrewJ, 4 weeks ago

  @ashp-bobba Thanks - I think going back to my earlier comment it is about having a properly balanced system so that whilst that one room is being used to fine-tune the flow temperature the other rooms...
RE: Load Compensation and Weather Compensation  

By ASHP-BOBBA, 4 weeks ago

  @andrewj Ah, maybe, they also often design to 50 Deg C flow rate and do everything to reduce the amount of emitters changed. If you balance everything to run on the correct curve you may get away with...
RE: Load Compensation and Weather Compensation  

By ASHP-BOBBA, 4 weeks ago

  @andrewj so this thermostat would normally go in a room that would be considered an average comfort, this stat is also only used to feed some info back to the ASHP, its not the overall master control....
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