This European Standard applies to non-ducted forced convection air cooled refrigerant condensers/gas coolers with dry air side surface within which the refrigerant changes phases or is cooled. Its purpose is to establish uniform methods of performance assessment. It does not deal with evaluation of conformity.

This European Standard does not apply to air cooled condensers/gas coolers, designed primarily for installation within the machinery compartment of packaged products or in factory-assembled condensing/gas cooling units.

This European Standard does not apply to condensers with an integral subcooling part.

This European Standard specifies methods to test and ascertain the following:

product identification;
standard capacity;
nominal air flow rate;
nominal fan power.

This European Standard does not cover technical safety aspects.

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PDF Pages	PDF Title
6	Foreword
7	Introduction
8	1 Scope 2 Normative references 3 Terms and definitions
11	4 Symbols
12	Table 1 — Symbols
13	5 Standard capacity 5.1 Basis for standard capacity data 5.2 Standard capacity conditions
14	Table 2 —Standard conditions for condensers Table 3 — Standard conditions for gas coolers Table 4 — Superheating values 5.3 Conditions for the nominal air flow rate 5.4 Conditions for nominal fan power 6 Manufacturer’s data
15	7 Measurements 7.1 Uncertainty of measurements
16	Table 5 — Uncertainty of measurements 7.2 Measurement criteria 7.2.1 Pipe side temperature measurement
17	7.2.2 Condenser and gas cooler inlet temperature 7.2.3 Subcooled refrigerant temperature 7.2.4 Water temperatures (Balancing air cooler – Air side calorimeter) 7.2.5 Gas cooler outlet temperature 7.2.6 Air temperatures 7.2.6.1 Air inlet temperature 7.2.6.2 Ambient air temperature for high and low pressure – calorimeter method 7.2.6.3 Air temperatures – air calorimeter room method
18	7.2.7 Pressure measuring points 7.2.8 Refrigerant flow rate 7.2.9 Water flow rate 7.2.10 Oil content 7.2.11 Non-azeotropic refrigerant 8 Testing methods and equipment 8.1 Testing methods for capacity 8.1.1 General
19	8.1.2 High pressure calorimeter (primary method) 8.1.2.1 General 8.1.2.2 Direct capacity measurement 8.1.2.3 Flow rate measurement method 8.1.3 Low pressure calorimeter (primary method) 8.1.4 Air side calorimeter (primary method)
20	8.1.5 Refrigerant flow method (confirming method) 8.1.6 Air flow method 8.2 Air flow measurement 8.3 Equipment for capacity measurement 8.3.1 General
21	8.3.2 High pressure calorimeter
22	8.3.3 Low pressure calorimeter 8.3.4 Air side calorimeter
23	8.3.5 Refrigerant flow method 8.3.6 Liquid receiver 9 Test procedures 9.1 General
24	9.2 Heat loss measurement – calibration 9.2.1 General 9.2.2 High pressure calorimeter – direct heat inducement into refrigerant
25	9.2.3 Low and high pressure calorimeters – heat inducement into secondary fluid 9.2.4 Air calorimeter room 9.3 Capacity measurement 9.3.1 Steady-state
26	9.3.2 Test duration
27	9.3.3 Conducting the test Table 6 — Tolerances 9.3.4 Data to be recorded 9.3.4.1 General 9.3.4.2 High pressure calorimeter 9.3.4.3 Low pressure calorimeter 9.3.4.4 Air side calorimeter
28	9.3.4.5 Confirming method 9.4 Measuring the fan performance 10 Capacity calculation 10.1 General 10.2 Heat loss factor: calibration test 10.2.1 High pressure calorimeter – direct heat inducement into the refrigerant 10.2.2 High and low pressure calorimeter – indirect heat inducement into the refrigerant
29	10.2.3 Air side calorimeter 10.2.3.1 Air side calorimeter totally enclosed by air 10.2.3.2 Air side calorimeter in contact with the floor 10.3 Capacity measurement test 10.3.1 High and low pressure calorimeter – flow rate measurement methods 10.3.2 High pressure calorimeter method – direct capacity measurement 10.3.3 Air side calorimeter
30	10.3.4 Confirming method 11 Conversion to Standard Conditions 11.1 General 11.1.1 Introduction 11.1.2 Correction for atmospheric pressure 11.1.3 Standard capacity 11.2 Nominal air flow 11.3 Nominal fan power
31	12 Test report
32	Annex A (normative) Flow meter method Figure A.1 — Arrangement for direct heat inducement method (for single substance and azeotropic refrigerants)
33	Figure A.2 — Arrangement for indirect heat inducement method
34	Annex B (informative) Low pressure calorimeter Figure B.1 — Arrangement for low pressure calorimeter method
35	Annex C (informative) Air-Side calorimeter Figure C.1 — Arrangement for air-side calorimeter method
36	Annex D (informative) Procedure to measure the oil content
37	Bibliography

Published By	Publication Date	Number of Pages
BSI	2014	40


PDF Format	Searchable	Printable	Preview Now

Status	Confirmed
Pages	40
Publication Date	2014-08-31
ISBN	978 0 580 80317 8
Standard Number	BS EN 327:2014
Title	Heat exchangers. Forced convection air cooled refrigerant condensers. Test procedures for establishing performance
Identical National Standard Of	EN 327:2014
Replaces	BS EN 327:2000
Descriptors	Air coolers, Rate flowmeters, Refrigeration, Refrigerants, Heat exchangers, Forced-convection coolers, Performance testing, Power (mechanics), Cooling system components, Coolers, Fans, Air flow
Publisher	BSI
Committee	RHE/30
ICS Codes	27.060.30 - Boilers and heat exchangers

BS EN 327:2014

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BS EN 16327:2014

BS ISO 10327:2014