Download A User Guide to iSBEM - National Calculation Method

in effect at that time. The detail and justifications of the calculations undertaken will need to be
submitted to the Building Control officer.
Figure 63: Schematic examples of arrangements for solar pre-heating (These schematics are
not intended to show safety measures or devices needed to make the systems safe.) –
Adapted from SAP2005
2. Solar pre-heating type – you need to select an option from the drop-down menu as
follows:
•
Separate solar cylinder - when there is one or more dedicated solar storage vessels
that are heated with the solar collectors only and that do not contain any other
heating sources, i.e., the solar energy system has a storage cylinder that is
independent of that for the hot water system storage.
•
Combined cylinder - the solar storage is combined in a hot water cylinder with one or
more back-up sources, i.e., the solar energy system shares the same storage vessel
with the hot water system.
If the solar pre-heating type selected is ‘Separate solar cylinder’, then the following
parameter becomes active:
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iSBEM version 4.1.e – UK Volume
28Jan13