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PREN 328 : DRAFT 2012

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

HEAT EXCHANGERS - FORCED CONVECTION UNIT AIR COOLERS FOR REFRIGERATION - TEST PROCEDURES FOR ESTABLISHING THE PERFORMANCE
Superseded date

08-01-2014

Published date

01-12-2013

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 Standard capacity
6 Manufacturer's data
7 Measurements
8 Testing methods and equipment
9 Test procedures
10 Calculating the cooling capacity
11 Conversion to standard conditions
12 Test report
Annex A (informative) - Bubble point temperature
Annex B (normative) - Test installation for direct
        expansion operation
Annex C (normative) - Test installation for liquids
Annex D (informative) - Superheating and capacity
Annex E (normative) - Test arrangement
Annex F (normative) - Operation with liquid overfeed
        by pump circulation
Annex G (informative) - Procedure to measure the
        oil content

Pertains 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; and c) with a liquid.

Committee
TC 110
DocumentType
Draft
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

Standards Relationship
12/30269388 DC : 0 Identical

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 5801:2017 Fans — Performance testing using standardized airways
IEC 60034-1:2017 Rotating electrical machines - Part 1: Rating and performance

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