A reference to the building code itself would not be useful to users of building products as a source of installation instructions, as the building code only describes the required performance of the building and not the means of constructing it.
In relation to information contained in Acceptable Solutions and Verification Methods as a way of providing installation instructions for your product, most Acceptable Solutions and all Verification Methods do not provide enough detail to show how to install the products used to achieve compliance (for example, a particular type of fire alarm may be required by C/AS2, but neither C/AS2 nor F7/AS1 describe in detail how to attach heat detectors to a ceiling nor how to connect their wiring – the manufacturer or importer would normally have an instruction sheet for this).
However, a few Acceptable Solutions may provide this level of detail for some specific situations (e.g. E2/AS1 has detailed instruction requirements for some cladding components). Any reference to an Acceptable Solution would only be relevant where the scope of use of the product matched the scope of the relevant part(s) of the Acceptable Solution, and would need to be specific on which Paragraphs, Figures, and Tables of which Acceptable Solution describe the manufacturer’s or importer’s recommended method(s) of installing the product in question.
Generally, product manufacturers and installers will already have installation instructions available for their products, so are unlikely to be creating them from scratch and trying to find appropriate references. A reference to an existing installation sheet/instruction/webpage would often be more useful than a reference to an Acceptable Solution, a standard, or to a Code of Practice. While a Code of Practice may contain useful information on the installation of a product, Codes of Practice are, by their nature, generic documents capable of being applied to multiple products from multiple suppliers. Codes of Practice are therefore not usually as detailed as a manufacturer’s or supplier’s installation instructions, which often contain drawings and content specific to the particular product. However, there may be some content within a Code of Practice which could form a useful part of the content of a product’s installation requirements.
The regulations require the installation information to be provided on a website for which a clear link can be provided, where it is available free of charge and without pre-conditions, and which continues to meet these requirements at least until the product is no longer available. Unless the manufacturer or importer can ensure the Code of Practice is available in this manner, then it cannot be referenced for any critical part of the installation requirements of a product, as the product manufacturer or importer may have no control over the publishing and availability of the Code of Practice.
Generally, product manufacturers and installers will already have installation instructions available for their products, so are unlikely to be creating them from scratch and trying to find appropriate references. A reference to an existing installation sheet/brochure/webpage would often be more useful than a reference to an Acceptable Solution, a standard, or to a Code of Practice.