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Circulators are integrated pump and motor products which are typically used to re-circulate heating or cooling media within a closed circuit and are principally used for central heating systems. A small percentage are used for other applications such as solar water heating, or chilling systems. Domestic circulators are those used in households and can be divided into two categories: small stand alone which are usually separate from the boiler (but can be in the boiler) and boiler integrated (BI) which are always integrated into the boiler. Circulators either use a standard induction motor or a permanent magnet (PM) motor. PM circulators offer the most efficient available technology.
The EuP Directive, passed by the European Parliament and the Council of the European Union on July 6th 2005, establishes a framework of rules and criteria for setting requirements on the ecodesign of energy using products (EuPs). The directive’s goal is to reduce the environmental impact of energy using products and support sustainable development.
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