EN 328:2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and 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
Bibliography

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.