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This standard applies to level controllers in heat transfer installations working with organic heat transfer fluids according to DIN 4754-1 and specifies minimum requirements in respect to the technical design and testing of level controllers. DIN 4754 " Heat transfer installations working with organic heat transfer fluids" consists of the following parts: Part 1: Safety requirements, test, Part 2: Draught diverter, Part 3: Level controller. This document has been prepared by Working Committee NA 041-01-41 AA "Wärmeübertragungsanlagen" ("Heat transfer installations") at Standards Committee Heating and Ventilation Technology and their Safety (NHRS).
This document replaces DIN 32728:1981-02 .