ISO-12759-4 › Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed

ISO-12759-4 - 1ST EDITION - CURRENT


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This document establishes a system for the classification of fan efficiency for all fan types driven by motors of nominal rating 0,125 kW and above. It applies to driven fans only, but not to the system (finished original equipment manufacturer's product, for example box fans and roof fans or ventilation system) in which they might be installed. This document describes a number of different procedures to classify the efficiency of a fan or to apply a minimum efficiency limit (MEL). Those procedures are described in:

— ISO 12759-3;

— this document (ISO 12759-4);

— ISO 12759-5;

— ISO 12759-6.

There is no method described to compare these classifications and MEL's.

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23.120 (Ventilators. Fans. Air-conditioners Marine ventilation and air-conditioning systems, see 47.020.90 Mining ventilation and air-conditioning systems, see 73.100.20 Ventilation and air-conditioning in buildings, see 91.140.30)

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Document Number

ISO 12759-4:2019

Revision Level

1ST EDITION

Status

Current

Publication Date

Oct. 1, 2019

Committee Number

ISO/TC 117