6.5.2. Modifying existing pipe feeds<br>

### 6.5.2. Modifying existing pipe feeds

Sometimes it is necessary to modify an existing pipe feed. If the pipe feed is short and consists of several segments, it is better to remove existing segments and draw a new pipe feed. In the case of longer pipe feeds, or those, which require much editing, modification may be necessary. The graphical editor provides a set of functions that enable modifying existing pipe feeds. These functions become available after selecting the “Components / Pipe-run menu” command or after right clicking on the selected pipe feed:

The pipe feed menu includes the following functions:

- add point,

- delete point,

- divide pipe feed into two,

- combine two pipe feeds into one,

- disconnect.

The manner of using these functions and examples of pipe feed modifications made with the use of these functions are described below.

¨ To add a new point on one of the segments of a pipe feed:

1. Mark the selected segment of the pipe feed.

2. Select “Components / Pipe-run menu / Add point”.

3. A new point is added in the middle of the marked segment.

¨ To delete a point (empty diamond symbol) on a pipe feed:

1. Mark the selected point.

2. Select “Components / Pipe-run menu / Delete point” or select “Edit / Delete point” (Del).

3. The marked point is deleted. If the segments of the pipe feed that were joined by this point did not form a straight line, a new segment connecting points adjacent to the deleted point is formed..

¨ To combine two pipe feeds (in the drawing) into one:

1. Mark the connection point of the two pipe feeds (solid square symbol).

2. Select “Components / Pipe-run menu / Combine pipe-run into one”.

3. Pipe feeds are combined into one.

¨ To divide a pipe feed into two separate pipe feeds (in the drawing):

1. Mark the selected internal point or selected segment of pipe feed.

2. Select “Components / Pipe-run menu / Divide pipe-run into two”.

3. The pipe feed is divided into two pipe feeds connected in the indicated point or in the centre of the indicated segment of pipe feed.

¨ To disconnect a pipe feed:

1. Mark the point of connection of the pipe feed with other component (HZ, manifold or other pipe feed) or the fragment of pipe feed ending at that point or on the entire pipe feed.

2. Select “Components / Disconnect” (Ctrl+R, ) or “Components / Pipe-run menu / Disconnect”.

3. The components are disconnected – the small solid square symbol is replaced by a large empty diamond symbol. If the entire pipe feed (all its segments) was marked in the first step, it will be disconnected at both ends.

Examples of pipe feed operations:

¨ To “move” the pipe feed towards the wall on the drawing:

1. Initial situation:

2. To isolate the part of pipe feed to be moved towards the wall, execute the “Add point” command four times: execute the command once, mark one of the new segments and execute the command again and so on. The following result should be achieved:

3. Move the bend points to appropriate locations (prior to that disable the ORTO mode, if it was enabled). Individual segments of the pipe feed are modified accordingly:

4. Modify the return pipe feed in the same way.

¨ To introduce several heating meanders in a HZ across which runs a pipe feed:

1. Initial situation:

2. Disconnect the existing pipe feeds from the HZ and move their terminal points to the point where the meanders should start. This can be done by carrying out the operation of disconnecting pipe feeds from the HZ and then moving their terminal point, or directly – when you move the terminal point of pipe feed it will be automatically disconnected from the HZ, as the latter cannot be moved. The following result should be achieved:

3. Insert the missing part of the pipe feed:

4. Combine the pipe feeds created in the drawing into one: