PREN 328 : DRAFT 2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
HEAT EXCHANGERS - FORCED CONVECTION UNIT AIR COOLERS FOR REFRIGERATION - TEST PROCEDURES FOR ESTABLISHING THE PERFORMANCE
01-08-2014
12-01-2013
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Superseded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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