The Modeling Level of Detail (MLOD) is similar in concept to the Model View Definitions (MVD) defined by IFC. MLODs define a subset of the overall BuildingSync schema necessary for a specific use case or workflow.
Level definitions are in alignment with the ASHRAE Standard 211 levels as defined below:
| MLOD | Use Case | Alignment to Std 211 | Std 211 Section |
|---|---|---|---|
| Level 000 | Audit | Preliminary Analysis | Section 5.2.3 |
| Level 100 | Audit | Level 1 | Section 6.1 |
| Level 200 | Audit | Level 2 | Section 6.2 |
| Level 300 | Audit | Level 3 | Section 6.3 |
| Level 400 | Audit | Not Applicable | Not Applicable |
| Level 500 | Audit | Not Applicable | Not Applicable |
Where the System Type specified below does not exactly match the enumeration in the BSync XML file, check the mapping defined by map_primary_hvac_system_type_to_cbecs_system_type. Additionally, see the examples/HVACSystems directory for a tutorial and example files.
| File | Specified For | System Type | Translate Tested | Simulate Tested | MLOD | Use Case | Validates Against | Description |
|---|---|---|---|---|---|---|---|---|
| L000_OpenStudio_Simulation_01.xml | Building | VAV with reheat | TRUE | TRUE | L000 | OpenStudio Simulation | L000 OpenStudio Simulation | No system-type actually declared. System inferred from OpenStudio Standards based on Building's OccupancyClassification and Gross floor area. |
| L000_OpenStudio_Simulation_02.xml | Building | PSZ-AC with gas reheat | TRUE | TRUE | L000 | OpenStudio Simulation | L000 OpenStudio Simulation | No system-type actually declared. System inferred from OpenStudio Standards based on Building's OccupancyClassification and Gross floor area. |
| L100_OpenStudio_Simulation_01.xml | Section-Retail | PSZ-AC with gas reheat | TRUE | TRUE | L100 | OpenStudio Simulation | L000 OpenStudio Simulation | Packaged Rooftop Air Conditioner is mapped to PSZ-AC with gas reheat. |
| L100_OpenStudio_Simulation_01.xml | Section-Office | PVAV with PFP boxes | TRUE | TRUE | L100 | OpenStudio Simulation | L000 OpenStudio Simulation | Packaged Rooftop VAV with Electric Reheat is mapped as PVAV with PFP boxes |
| PSZ-AC-CDM-001.xml | Section | PSZ-AC | N/A | N/A | L200 | Audit | None | Example of constructing more complex, L200 system. |
| PSZ-HP-CDM-001.xml | Section | PSZ-HP | N/A | N/A | L200 | Audit | None | Example of constructing more complex, L200 system. |
| System Type | Level 000 | Level 100 | Level 200 |
|---|
| System Type | Level 000 | Level 100 | Level 200 |
|---|