ISO 14617-15:2002

Overview

ISO 14617-15:2002 - "Graphical symbols for diagrams - Part 15: Installation diagrams and network maps" defines standardized graphical symbols used on installation diagrams (for buildings and plants) and on network maps. It supplements the symbol sets in ISO 14617‑2 to ISO 14617‑12 and is intended to help technical authors and drawing specialists indicate the location and type of components (pipelines, valves, sensors, hydrants, enclosures, etc.) consistently across documentation.

Key topics and technical requirements

• Scope and purpose
  • Symbols are primarily for showing component location/type on installation diagrams and network overviews.
  • Symbols in this part supplement general symbols in ISO 14617 parts 2–12.
• Symbol families covered
  • Installation of pipelines and ducts (e.g., sleeves, seals, anchors; underground/underwater/overhead location markers)
  • Connection boxes, access chambers, distribution centres
  • Water taps, hydrants and related devices
  • Measurement, control and protection devices (sensors, detectors, protection units)
  • Water heaters, air conditioners and complex plant/function units
  • Technical plants and system-level symbols (flow direction, pumps, tanks, heat exchangers)
• Application rules and annotation
  • Symbols include registration numbers and application rules (R-codes) and example usages (X‑codes).
  • Orientation and slope conventions apply (e.g., slope symbol oriented to indicate direction; angle limits for combined symbols are specified).
  • Qualifying annotations (e.g., AT = air‑tight, WT = water‑tight, FR = fire‑resistant) and replacement of asterisks with letter symbols per ISO 31 / IEC 60027 or with symbols from ISO 14617‑2 are required.
• Supplementary info symbols
  • Status/alerts such as control, information, alarm (light/sound/vibration), and media indicators (liquid, fire, smoke, dust, vibration).

Practical applications

• Use ISO 14617-15 to produce clear, interoperable installation drawings and network maps for:
  • Building services and MEP (mechanical, electrical, plumbing) diagrams
  • Utility network maps (water, district heating, gas, telecom)
  • Plant and process documentation, facility management plans
  • CAD libraries, BIM symbol sets, and technical manuals
• Benefits: improved clarity, reduced ambiguity in handover documentation, and easier integration between multi‑disciplinary engineering teams.

Who should use this standard

• Technical drafters, CAD/BIM engineers, architects, MEP engineers, facility managers, utility planners, and technical writers preparing installation diagrams or network maps.

Related standards

• ISO 14617-1 (general information and indexes)
• ISO 14617-2 to ISO 14617-12 (symbol families)
• ISO 81714-1 (rules for creation and application of graphical symbols)
• ISO 31; IEC 60027 (quantities and letter symbols)

Keywords: ISO 14617-15, graphical symbols, installation diagrams, network maps, diagram symbols, technical documentation, pipeline mapping, MEP drawings, CAD symbols.