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Toodles RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?  

By Toodles, 3 days ago

  Further to the above suggestion of checking the accuracy of Daikin data, I am attaching a section of the form indicating my ASHP projected performance. You will note the design temperature is 50 degre...
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?  

By JamesPa, 3 days ago

  So here is the basic spec sheet showing SCOPs. In an 'average climate' - is I think an EU definition) SCOP is quoted at 3.39 at 55FT and 4.72 @ 35FT. Separately (because its not climate dependent) C...
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump  

By nickhorne, 3 days ago

  @hcas Thanks! One more question - are you able to take in dynamic time of use rate from Octopus intelligent go? i.e. where there is a set low rate period overnight, but also slots outside of that time...
Toodles RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?  

By Toodles, 3 days ago

  @mairia Are you relying on the Daikin MMI data? The consumption figures that the MMI supply to the Onecta app are very suspect I find. (As does Jonathan Tracey); please see in which he compares the...
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump  

By HCas, 3 days ago

  It didn't allow me to post the link, so sending the Shelly model instead: Shelly H&T Gen3
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump  

By HCas, 3 days ago

  @nickhorne Good questions! 1. Yes Havenwise sends target flow temperatures to the heat pump so the programmed weather compensation curve (or water law in Samsung's words) is not used. 2. No it does no...
RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump  

By nickhorne, 3 days ago

  Hello, Question on how Havenwise works with a Samsung ashp (Gen7 wifi connected) Does it take over direct control of the heat pump flow temperature and bypass weather compensation within the samsung c...
Extend the colder range of the weather compensation curve?  

By TheBinMan, 3 days ago

  In theory everyone has a heatpump designed to deliver the heat required at a certain outside design temperature for whatever part of the country you are in. Say for example a system is designed for 45...
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?  

By MairiA, 3 days ago

  @jamespa thank you. The unit is a EDLA09DA3V3. Refrigerant is R32. SCOP on the MCS certificate is 3.6, on the heat loss calculation for space heating is 3.02 which the installer explained as being bas...
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?  

By JamesPa, 3 days ago

  @mairia Whist we wait for it to get cold, if you would like to post the exact model number of your heat pump and whether it is R32 or R290, I will try to find the expected COP figures to compare with...
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