This application allows us to design and calculate ducts inside the AUTOCAD program using any of the 14, 2000 or 2002 versions, and to create reports containing the list of materials and other important information such as speeds, airflows, load loss, etc.......

1.1 The Condu_2D air conditioning and ventilation circuit design and calculation solution
Condu_2D is the solution to design and calculate air conditioning and ventilation circuits. Based on the floor plan of the building in which the system is to be installed, Conductos enables all of the circuit components to be designed in 2D quickly and easily.

Installations designed with Condu_2D are much more than just drawings, including all the information relating to the installation. Conductos meets the UNE and DIN regulations relating to air carrying and conditioning ducts.

The program includes graphic tools that allow a diagram of the circuit to be designed to be drawn with ease. At the start of the session, the technical values can be set, which allow the program to automatically calculate the cross sections and airflows for each section.

Starting from one point on the drawing, the circuit diagram is built using straight lines, specifying the length and direction, as well as deviations and changes in direction.

1.2 Duct types and accessories
The program covers three basic duct types:

Rectangular cross section

Circular cross section

Oval cross section

To change the circuit direction and solve problems with crossings and splits, components such as elbow joints, shifts and junctions are used.

1.3 Working mode

Based on the circuit diagram, the program automatically calculates the cross sections for each section and draws all of the circuit ducts and components.
It is possible to continue to build the circuit from any point on it.

The system allows vents to be installed both at the ends of the circuit and at intermediate points along it.

In a same drawing file it is possible to build several circuits and work on any of them.
1.4 Reports

Once the circuit calculation and design process is complete, the program produces a report that contains all of the circuit components, their brand, quantity, material, thickness, number of vents, technical information, etc.

This application allows us to represent ducts in 3D inside the AUTOCAD program using any of the 14, 2000 or 2002 versions. It also provides measurement reports and many tools to solve problems with joints.

2.1 The air conditioning and ventilation circuit calculation and design solution

Users can take the floor plan of the building linked to the installation as a reference point, as well as a simplified 2D drawing with the general format of the complete circuit.

Based on the floor plan, the program can automatically erect the partition walls, allowing the user to set the floor and/or suspended ceiling levels.

The designer can add partition walls, pillars, a suspended ceiling and obstacles (beams, pipes) that will be taken into account during the circuit design process.

2.2 Duct types and accessories

The program covers three basic duct types:

Rectangular cross section

Circular cross section

Oval cross section

To change the circuit direction and solve problems with crossings and splits, components such as elbow joints, shifts and junctions are used.

The designer can complete the circuits by adding diffusers, grids and other accessories.

2.3 Working mode

The program allows three different working modes

•  Manual

•  Aided

•  Automatic

•  MANUAL

The user chooses each of the components or ducts and arranges them one after another in sequence

•  AIDED

The designer chooses the first circuit components and its position.

The components that will take the key positions are then established: crossings, shifts, changes in cross section, etc.

Finally, the program completes the design automatically by adding all of the necessary intermediate ducts and eliminates any difference in height between the components that need to be joined.

•  AUTOMATIC

Once two components and their position have been established, the program adds the intermediate ducts that join them.

When a duct or components is chosen in the circuit, the program displays a graphic window showing its geometric shape and measurements. The user can set the desired values or accept the default values. The direction of the outlet vent or vents can also be changed.

There are different versions of junctions (two elbow joints, one elbow joint, a horizontal section, three components) that can be combined to provide many different solutions depending on the type, number of elbow joints and measurements.

The user can set several parameters at the start of the session to avoid entering them more than one (thicknesses, length of straight sections, tab types, etc).

Assistance tables are included to help the design to select standard measurements.

2.4 Reports

At the end of the circuit design process, the program automatically produces reports to make manufacturing proposals and projects: Breakdowns of each component (quantity and measurements), List of materials (component type, quantity, thickness, length, etc).

2.5 Usage characteristics

•  Built into AutoCAD

•  Easy and quick to use

•  Used both during the proposal and the construction stage.

•  Output information can be customised using ACCESS

2.6 Design characteristics

•  2D / 3D design and calculation

•  Circuits with rectangular, circular and oval cross sections

•  UNE / DIN standard components and measurements

•  Architecture tools to aid construction

•  Maximum cross section height option

•  Can be customised with new component types and accessories.

•  Adapted to different working modes (manual, aided, automatic)

•  Automatically overcomes obstacles (beams, pipes)

•  Makes automatic intelligent 3D joints

•  Different solutions for a single component (elbow joints, shifts, junctions)

2.7 Technical characteristics

•  Complete reports for assembly and manufacturing.

•  Broad scope of application

•  Change to equivalent cross sections

•  Fully integrated with programs that include component development, nesting and clipping

•  The components include all kinds of joints and tabs