# Distribution Chamber

| Field | Value |
| --- | --- |
| Discipline | MEP |
| Authorities | NEA |
| Pages (COP v3.1) | 29–30 |
| IFC Bindings | 2 |
| Parameters | 15 |
| Source | CORENET X Code of Practice v3.1 |
| Source link | [View on CORENET X ↗](https://info.corenet.gov.sg/ifc-sg/bim-data-(ifc-sg)/glossary-of-identified-components?id=a7a536bd-0867-4671-aeaf-ae328eb2785f) |

## IFC Bindings

| # | IFC Entity | Predefined subtype(s) | Params | Notes |
| --- | --- | --- | --- | --- |
| 1 | `IfcDistributionChamberElement` | INSPECTIONCHAMBER, MANHOLE, METERCHAMBER, PWCSINSPECTIONCHAMBER, PWCSMANHOLE, SCREENCHAMBER, SAMPLINGSUMP, SUMP, TRENCH | 13 |  |
| 2 | `IfcCovering` | PWCSINSPECTIONCHAMBERCOVER, PWCSMANHOLECOVER | 2 |  |

## Parameters

See `parameters.json` for the machine-readable, binding-grouped data (with resolved `allowed_values` for input-limited fields).

| IFC Entity | S/N | Property | Type | Unit | Input limited | Example |
| --- | --- | --- | --- | --- | --- | --- |
| `IfcDistributionChamberElement` | 1 | TopLevel | Text | SHD m |  | -50; 3.423 |
| `IfcDistributionChamberElement` | 2 | InvertLevel | Text | SHD m |  |  |
| `IfcDistributionChamberElement` | 3 | Diameter | Length | mm |  |  |
| `IfcDistributionChamberElement` | 4 | Depth | Length | mm |  |  |
| `IfcDistributionChamberElement` | 5 | Height | Length | mm |  |  |
| `IfcDistributionChamberElement` | 6 | Length | Length | mm |  |  |
| `IfcDistributionChamberElement` | 7 | Width | Length | mm |  |  |
| `IfcDistributionChamberElement` | 8 | Material | Text |  |  |  |
| `IfcDistributionChamberElement` | 9 | TradeEffluent | Boolean |  | Y | TRUE / FALSE |
| `IfcDistributionChamberElement` | 10 | ID | Text |  |  |  |
| `IfcDistributionChamberElement` | 11 | Status | Text |  | Y | Temporary; Demolished; Existing; Proposed; To Be Removed; To |
| `IfcDistributionChamberElement` | 12 | SystemType | Text |  |  | Sanitary; Sewerage |
| `IfcDistributionChamberElement` | 13 | SystemName | Text |  |  |  |
| `IfcCovering` | 1 | Watertight | Boolean |  | Y | TRUE / FALSE |
| `IfcCovering` | 2 | ExternalReference | Text |  |  | SS 30 Manhole Tops and Surface-box Tops |