HVHACC rectangular requirements

This topic describes the specification requirements for rectangular access panels (HVHACC) sub components.

If this component is not available in old AVEVA supplied ACP projects, it can be implemented with the configuration described in this topic.

Parameter description requirements

• Parameter #1 = Width of arrive

• Parameter #2 = Height of arrive

Data set requirements

For information about data set requirements that apply for all rectangular components, refer to Rectangular component requirements.

The following requirements are in addition to the data references that are created for parameters.

** Where the Default value is set to a parameter, the Expression value must be set to the same parameter. This is applicable for all component types.

P-point requirements

Because rectangular access panels are sub components, without an arrive or leave, the P-points are different from inline components. The orientation of the P-points and the geometry must follow the examples in this topic.

• P9 defines the position and orientation of the access panel on the surface of the owning duct, and must be on the X axis, with a direction of X, and positioned at the intersection of the owning duct.

  • P9 can be any P-Point type, but PTAX is the simplest option because it is positioned on the X axis and directed to X.

  • Axis Direction (PAXI) must be X

  • PZ Axis (PZAXI) must be Y.

    In most cases, P9 is set as shown in the following graphic:

    

• P3 is used to control the dimension aids used when positioning the access panel in the Model module.

  • P3 must be positioned at the extents of the component geometry along the X axis, as shown in the example graphic.

  • P3 must be on the X axis and directed to X.

  • P3 can be any P-point type, but PTAX is the simplest option because it is positioned on the X axis and directed to X (Axis Direction (PAXI) set to X) with the PZ Axis (PZAXI) set to Y.

    In most cases, P3 is set as shown in the following graphic:

    

All sub components that are located on the surface of rectangular ducting require P-points P61–P64. These are used by the HVAC application to control the placement of the sub component on inline components, and on implied ducting components.

P61–P64 must be defined according to the following:

• The P-points must be on the same Y-Z plane as P-point P9.

• The P-points must be on the X axis and directed to -X.

• The P-point type is not required, but PTMI is recommended because it allows the required position and Axis Direction to be set easily.

The order of the P-points and PAXI setting do not affect how the components work, but it is good practice to be consistent when building the catalogue.

With P9 having a PAXI of 'X', P61–P64 will be on the same Y-Z plane, with a PAXI of '-X', and the P-points arranged as shown in the following graphic:

In most cases, P61 for example, is set as shown in the following graphic:

Specification requirements

The following specification headings are required:

• Type (TYPE)

• Owner Shape (OSHA)

• Owner Width (OWID)

• Owner Height (OHEI)= 0 (set to 0 only it is allowed on all owner sizes)

Specific Type (STYP) is not used in AVEVA supplied specifications, but it can be used to differentiate between configurations.