I have got a doubt about how to input HWS for compliance in the Apache system.
Here is an example:
The building is heated/cooled using ASHP so I set the Main System using the UK NCM type split or multisplit system. I input the relevant information such as COP, SEER etc.
The HWS is "instantaneous hot water only" so within the Main System, in the Hot Water tab, I selected instantaneous hot water only and applied the efficiency (1).
When I run the simulation and get the BRUKL report however the Water heating efficiency in not 1 but the same as the ASHP which, of course, is not the case.
So, to try to fix this, I have subsequently create another system other than the Main System, where I have still used the split or multisplit option but I have set the COP and SEER to 1 and than in the Hot Water tab I have selected "Same as space heating". When getting the BRUKL report however I get the message " no HWS in the project or HW delivered by HVAC system" which leaves me a bit baffled.
What am I doing wrong? which would be the correct process to input HWS?
Part L2 of the Building Regulations (2006 edition).
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