NewEnvelope compliance

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Hello, we have a customer asking how to do NewEnvelope compliance.  This is 
intended for speculative buildings for which the HVAC is not yet defined.

Does this use automatically generated defaults for all Mechanical data, and if 
so how is this set up for the ComplianceManager API?

In the CBECC-Com tool, I can’t see how to run an error-free NewEnvelope 
analysis when no HVAC systems or “Conditioned” Thermal zones have been 
defined.

Original issue reported on code.google.com by f.le...@gmail.com on 27 Oct 2014 at 6:42

[GoogleCodeExporter]

For a NewEnvelope compliance, the building geometry and envelope must be 
defined as for a NewComplete compliance.  This includes definition of spaces 
(including space function) and thermal zones.  While thermal zones may not be 
final, a reasonable estimate is acceptable.  

Definition of lighting power or other internal loads is not required beyond the 
default values for the space function.  Definition of HVAC or service water 
heating is also not required.  When the compliance analysis is performed, the 
rules which are used to implement and size the baseline lighting power and HVAC 
systems are applied to both the proposed and baseline models.  The proposed 
model will end up with internal loads which match the baseline model (these 
will be the default values for the space function).  The proposed will also end 
up with the same HVAC system type as the baseline, but each model will have its 
own sizing run, so the HVAC system capacities may differ based on the envelope 
design.  

In terms of what is required to be input, it is geometry, material selections, 
constructions, space definitions, space function assignments, thermal zones and 
assignment of spaces to thermal zones.  HVAC system inputs can be left blank. 

Original comment by rhedr...@archenergy.com on 27 Oct 2014 at 7:14

• Changed state: WontFix