AS/NZS 3500.4:2025 PDF
AS/NZS 3500.4:2025 specifies the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof. It includes aspects of the installation from the valves on the cold-water inlet to any cold-water storage tank or water heater and the downstream fixtures and fittings. It applies to new installations as well as alterations, additions and repairs to existing installations
