BS EN 13771-2:2017

What is BS EN 13771-2 - Performance testing and test methods of condensing units for refrigeration about?   

Refrigeration has a variety of applications that includes, household refrigerators, industrial freezers, air conditioning and cryogenics.  

BS EN 13771-2 applies only to condensing units for refrigeration and describes a number of selected performance test methods. These methods provide sufficiently accurate results for the determination of the refrigerating capacity, power absorbed, refrigerant mass flow and the coefficient of performance.  

 BS EN 13771-2 applies only to performance tests conducted at the manufacturer's works or wherever the instrumentation and load stability for testing to the accuracy required is available.  

Who is BS EN 13771-2 - Performance testing and test methods of condensing units for refrigeration for?  

BS EN 13771-2 on Performance testing and test methods of condensing units for refrigeration is useful for:  

• Industries where refrigeration is used  
• Refrigeration manufacturing companies  
• Electronics laboratories  
• Quality management teams 

Why should you use BS EN 13771-2 - Performance testing and test methods of condensing units for refrigeration?   

Refrigeration is artificial cooling where heat is removed from a low-temperature reservoir and transferred to a high-temperature reservoir. This work of energy transfer is driven majorly by mechanical means, heat, magnetism, electricity or laser. 

BS EN 13771-2 provides guidance on:  

• Refrigerant circuit state points 
• Calculation methods 
• Pressure and temperature measuring points 
• Oil circulation 
• Refrigerant composition 
• Calibration and requirements regarding measurement uncertainty 
• Source of refrigerant data 
• List of test methods 

BS EN 13771-2 helps you assess the performance of compressors and condensing units for refrigeration so that end customers get a superior quality product. 

What’s changed since the last update?   

BS EN 13771-2:2017 supersedes BS EN 13771-2:2007. BS EN 13771-2:2017 includes some technical changes with respect to BS EN 13771-2:2007. These include:  

• Alignment of symbols and indexes with EN 13771-1  
• Introduction of a new Figure 1 “Condensing unit configurations” and revision of Figures 2 to 7  
• Introduction of the new Clause 4 “Uncertainty of measurement and test conditions”  
• Specification of a detailed test room and setup description to reduce testing uncertainty, aligned with EN 327 and EN 14511-3  
• Adoption to trans critical operation and cyclic capacity control