Last seen: May 23, 2025
My heat pump by luck is sized correctly and defrosts hourly. All you can do is keep the flow temp to the minimum you need and keep it running so you ...
I have an 8.5kw heat pump and its currently running at 36C and pulling 2kw so not miles away from yours, when it runs at 45C its will pull 3.5kw, ther...
@boycey If you are running at 26C and the house is 20C then your UFH isn't going to be able to get rid of any heat as the room temp is too close to th...
if you click on tank temp and set temp in the legend it will remove them from the plot it will rescale you will then be able to see what the flow tem...
That will just prevent the heat pump from setting a temperature lower than 30C, its easier just to adjust your weather compensation curve. Can you po...
Just to add my 2p, I have an Ecodan and UFH, to avoid cycling on and off then we need set the flow temp at a minimum of 32C, from your plots it looks ...
As you state L9 is flow rate error, if you go to the service menu when the heat pump is running and then go into running information and put in code 5...
between 3 and 8 depending on flow temp, Ecodan so fixed flow rate.
@athlonoc you don't have a mitsubishi preplumbed cylinder so the FTC probably can't control the pump speed but that is easy to check on the FTC go to ...
@athlonoc You don't need 24L/min for an 8.5kw heat pump, Mitsubishi's own manual states 15.2L/min, 24L is the absolute maximum so i'm not surprised it...
Maybe work out what brand they are and google the instructions
Yes they should just screw off and on they are just normal threads usually
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