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EN 328:2014

Heat exchangers - Forced convection unit air coolers for refrigeration - Test procedures for establishing the performance

Edition date: 2025-09-03
In Force
Summary: La présente Norme européenne s'applique aux aérofrigorifères non raccordés utilisés dans les situations suivantes : a) expansion directe à sec du fluide frigorigène ; b) suralimentation en liquide par circulation du fluide frigorigène au moyen d'une pompe ; c) fonctionnement avec un liquide. La présente Norme spécifie des méthodes uniformes d'évaluation de la performance afin de soumettre à l'essai et de déterminer les caractéristiques suivantes : - identification du produit ; - puissance normale ; - chute de pression normale du liquide ; - chute de pression normale du fluide frigorigène (uniquement pour les utilisations avec suralimentation en liquide par circulation du fluide frigorigène au moyen d'une pompe) ; - débit d'air nominal ; - puissance nominale du ventilateur. La présente Norme ne traite pas de l'évaluation de la conformité. Elle ne s'applique pas aux aérofrigorifères destinés à être montés dans des gaines ou à convection naturelle par air. La présente Norme ne traite pas des aspects techniques de sécurité.

This European Standard is applicable to non-ducted unit air coolers for refrigeration operating: a) with direct dry expansion of a refrigerant; b) with liquid overfeed by pump circulation of a refrigerant; c) with a liquid. This standard specifies uniform methods of performance assessment to test and ascertain the following: - product identification; - standard capacity; - standard liquid pressure drop; - standard refrigerant pressure drop (for operation with liquid overfeed by pump circulation only); - nominal air flow rate; - nominal fan power. It does not cover evaluation of conformity. It is not applicable to air coolers for duct mounting or with natural air convection. This standard does not cover technical safety aspects.

Diese Europäische Norm gilt für kanallose Ventilatorluftkühler zum Einsatz in Kälteanlagen: a) mit direkter trockener Expansion eines Kältemittels; b) mit Flüssigkeitspumpenumwälzung eines Kältemittels; c) mit einem Kälteträger. Diese Norm legt einheitliche Verfahren zur Leistungsbewertung fest, um Folgendes zu prüfen und sicherzu-stellen: - Produktkennzeichnung; - Normleistung; - kälteträgerseitiger Normdruckabfall; - kältemittelseitiger Normdruckabfall (nur für den Betrieb mit Flüssigkeitspumpenumwälzung); - Nenn-Luftdurchfluss; - Nenn-Ventilatorleistungsaufnahme. Diese Norm behandelt nicht die Konformitätsbewertung. Sie gilt nicht für kanalmontierte Ventilatorluftkühler oder Luftkühler mit freier Konvektion. Sicherheitstechnische Gesichtspunkte sind nicht Gegenstand dieser Europäischen Norm.

ICS: 27.060.30-Boilers and heat exchangers, 23.120-Ventilators. Fans. Air-conditioners
CTN: CEN/TC 110 - 6092

Reemplazo Normas

Reemplaza a EN 328:1999/A1:2002

Reemplaza a EN 328:1999

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