Last seen: Dec 26, 2025
@sheriff-fatman Thank you, food for thought. I think that I am about to be distracted by Christmas. Happy Christmas
@jamespa I appreciate the questioning, you are correct it is important to have certainty. How would you check what the pump thinks the power consumpt...
@sheriff-fatman You may be able to vary the pump speed by using the controls on the pump.
@jamespa The 2 pumps was a decision by the installer, I don't think that they are necessary but at the moment it is a small difference in energy consu...
@sheriff-fatman This is the table that I am familiar with. It shows a COP of 5.04 with a capacity of 4.1kW at 7C OAT and 35C flow. Which is why I thin...
@sheriff-fatman The FTC7 with third party cylinder and pump does not control the pump speed, there is a menu item for pump speed and the value can be...
@majordennisbloodnok Delat T 3C, no defrosting and I am not running Home Assistant
@sheriff-fatman I'm not sure why you have selected the Max figures from this table. Lower down the minimum figures are provided, these are more repres...
@f1p No Buffer, No LLH, Delta T is 3C, pumps are in proportional pressure mode, giving a fairly constant 19 l/min. There is glycol in the system and I...
@jamespa No cycling, flow temp varies by less than 2 degrees, return is very stable. Today it is running at 38C varying by less 2C, since water heatin...
@jamespa Here's an update to my previous post. Mitsubishi engaged a subcontractor to investigate the poor performance of my heat pump. He concluded th...
@cold123456 Mitsubishi has failed to respond to my complaint. On 16 November I sent a formal complaint to Mitsubishi specifying that they had suppl...
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