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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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