BS EN 14825:2018

What is BS EN 14825 - Calculate of seasonal performance of air conditioners, heat pumps, with electrically driven compressors about?  

BS EN 14825 is about Testing and rating at part load conditions and calculation of seasonal performance of Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling. 

BS EN 14825 covers air conditioners, heat pumps and liquid chilling packages, including comfort and process chillers. BS EN 14825 applies to factory-made units, except single duct, double duct, 

control cabinet and close control units. BS EN 14825 also covers direct exchange-to-water(brine) heat pumps (DX-to-water(brine)). BS EN 14825 also covers hybrid heat pumps. 

BS EN 14825 covers the following  

• The test methods for determination of capacities, EER and COP values during active mode at part load conditions
• The test methods for power input during the thermostat-off mode, standby mode, off-mode, and crankcase heater mode

Who is BS EN 14825 - Calculate of seasonal performance of air conditioners, heat pumps, with electrically driven compressors for? 

BS EN 14825 on calculate of seasonal performance of air conditioners, heat pumps, with electrically driven compressors is applicable to: 

• Air Condition Manufacturer 
• HAVC Technician 
• Packaging manufacturer 
• Heat Pump Manufacturer 

Why should you use BS EN 14825 - Calculate of seasonal performance of air conditioners, heat pumps, with electrically driven compressors? 

Efficient functioning of air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling is important as it helps in energy-saving and better Load bearing capacity. Seasonal changes this make affect the functioning efficiency.  

BS EN 14825 provides part load conditions and calculation methods for calculating the Seasonal Energy Efficiency Ratio (SEERon) and Seasonal Coefficient of Performance (SCOPon and SCOPnet) of such units when they are used to fulfil the cooling and heating demands. 

BS EN 14825 considers the Seasonal Energy Performance Ratio of process chillers (SEPR) which is representative of variations in loads throughout a complete year. Test conditions and test methods are described to calculate this SEPR. 

BS EN 14825 helps you in improving the performance and efficiency of the air conditioner, liquid chilling packages with seasonal change with the given test. 

What’s changed since the last update?  

BS EN 14825:2018 supersedes BS EN 14825:2016, which is withdrawn. Significant changes between BS EN 14825:2018 and BS EN 14825:2016. Are as follows 

• Modification of the scope to include hybrid heat pumps; DX-to-water(brine) units and process chillers 
• Modification of Clause 3 to be harmonized with Commission Regulation (EU) 2015/1095 of 5 May 2015 and Modification of Table 1 to include references to European regulations which use different terms and symbols 
• New numbering of Clause 5 and Clause 6 and modification of Clause 5 and Clause 6 to include a new requirement for seasonal space cooling efficiency and o include requirements for hybrid heat pumps and DX-to-water(brine) units 
• New Clause 7 &9 which cover test method for hybrid heat pumps with fossil fuel boilers and cover process cooling 
• Modification of Clause 8 to include air-to-air units above 12 kW and hybrid heat pumps