I know this is an SBEM problem and Not the Hevacomp input engine please advises as to why the after a recent upgrade I am missing the Notional minimum efficiencies. Hevacomp version V8iSSS1 SP10 (V8i SS1 CP3 (06/16)) SBEM V5.6.a.2 interface V26.06.00.12 BRUKL V5.6.a.1.
Please review the attachment. is this normal or has something been lost? The energy looks ok. the notional building report also looks OK.
Hi Adrian, I would not suspect that this is cause for alarm as changes are to be expected between versions (please see list of changes in each SBEM update at: http://www.uk-ncm.org.uk/page.jsp?id=5. ). However as Hevacomp has little to do with the creation of the Notional Building data (this is all standardised as part of the NCM definitions) if you have any concerns about this then it would be a good idea to consult BRE, via the Feedback section of the above webpage.
Shane Regan | Senior Building Performance Support Engineer
Hi Adrian, to add to the above, this is definitely linked to the type of heating and cooling systems selected - eg the Standard values will be displayed if Heat Pump (gas/oil) is selected as Heating system, but not for Heat Pump (elec) .
The Non-domestic Building Services compliance Guide would be a good resource in relation to this, as this defines the standard values referred to - see note on the Compliance Guide:
As far as I can see the specific criteria for the standard values is if the system is Electric or not, as referred to below: