It means that you have restricted your maximum output to 9kW according to the Samsung tech. response. I also have a 12kW Gen6 which is about 1.3 times over-size that has a flow rate of 27.6lpm at 100% pump speed. I have recently reduced the pump speed to 70% using FSV 4051 giving a flow rate of 19.7lpm as an experiment prompted by Optimizing flow rate for ideal COP
This seems to have had the benefit of curbing the aggressive startups that often caused overshoots and it means the compressor will spend less time at 100% output so should improve lifetime of the equipment. It doesn’t seem to have had a detrimental effect on COP, it might even have improved it, but early days yet.
Emoncms - app view
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