EN ISO 16484-3:2005 PDF

Overview

EN ISO 16484-3:2005 - Building automation and control systems (BACS) - Part 3: Functions (ISO 16484-3:2005) is a CEN-adopted international standard that specifies functional requirements and engineering services for building automation and control systems. The standard defines terminology, gives guidelines for project- and application-specific functional documentation, and supplies a BACS function list (BACS FL) template (normative) and informative function block examples. It clarifies what must be included in procurement specifications to ensure successful installation and operation of a BACS, while explicitly not standardizing programming methods.

Key topics and requirements

• Functional definitions and terminology: Unified terms to avoid ambiguity in specifications and contracts.
• BACS function list (BACS FL): A normative template for documenting plant- and application-specific functions and points (often called a BACS points list).
• Software and application requirements: Requirements for BACS application programs, system management, communication programs, human system interfaces, and operating systems.
• Function types: Classification of function categories including I/O function types, processing/control functions, management functions and operator functions.
• System engineering and commissioning: Guidance on engineering processes, hardware and control strategy configuration, commissioning tools and service/commissioning functions.
• Communication and integration: Communication function requirements to integrate dedicated special systems (lighting, security, energy plant, etc.) into the BACS.
• Procurement and specification method: A method to produce complete functional procurement specifications containing all essential elements required for operational functioning.

Applications

• Creating clear, complete functional specifications for procurement of BACS projects.
• Documenting and exchanging a standardized BACS points list for control, monitoring and integration tasks.
• Defining system scope and functional boundaries for system integrators, manufacturers and contractors during design, installation and retrofit projects.
• Supporting commissioning, testing and handover by providing standardized documentation and example function blocks.
• Planning system integration of HVAC, lighting, security and other building services using consistent functional definitions.

Who uses this standard

• Architects, consultants and design engineers
• Building automation manufacturers and system integrators
• Electrical/mechanical contractors and commissioning engineers
• Facility managers and building owners procuring BACS
• Educators and trainers in building services automation

Related standards

Part of the EN ISO 16484 series. See other parts for complementary guidance:

• Part 1: Overview and definitions
• Part 2: Hardware
• Part 4: Applications
• Part 5: Data communication (protocol)
• Part 6: Conformance testing
• Part 7: Project specification and implementation

Keywords: Building automation and control systems, BACS, ISO 16484-3:2005, BACS function list, function block, functional specification, system integration, commissioning.