The three service kinds, their default sizes, and the flags that change how they're checked.
The three kinds
Kind
UI name
Default size
Default zone
HVAC
Duct
600 × 300 mm
Zone D
Dry (cable)
Cable tray
300 × 100 mm
Zone A
Wet
Pipe
100 mm diameter
Zone C
Add one from the Electrical, Mechanical, or Pipes ribbon verb. Every service has
a free-text Label field (placeholder text like "e.g. Return", "e.g. Power",
"e.g. Sprinkler"), a Color, and its size fields (Width / Height for ducts and
trays, Diameter for pipes).
Duct flags
Low Condensation Risk Duct — puts the duct in Zone E instead of Zone D, and lets it
pass over the cable-tray zone. Use it only for ducts that genuinely won't sweat onto the
electrical zone below.
Cable tray flags
ELV / signal tray — marks the tray as carrying data or signal cables. Coordination
keeps a wider gap between an ELV tray and a power tray than the project's normal
clearance, and groups them separately. See
Compliance checks for the exact
threshold.
Branches
Add a branch from any face of a service — Add branch left / right / top / bottom — to
model a take-off. Branch geometry, take-off sides, and terminations are covered on
Branches & take-offs.
Deleting a service
Deleting a service with branches deletes the service and all of its branches as one
undoable action; the confirmation dialog states how many branches will go with it.
Colour and multi-editing
Selecting more than one service switches the inspector to Multiple selection, where you
can set a shared Colour or bulk-rename the set — see
The workspace.