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BS EN 14825:2022

BS EN 14825:2022

$215.11

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

Published By Publication Date Number of Pages
BSI 2022 142
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This document is applicable to air conditioners, heat pumps and liquid chilling packages, including comfort and process chillers. It applies to factory made units defined in EN 14511-1, except single duct, double duct, control cabinet and close control units. It also covers direct exchange-to-water(brine) heat pumps (DX-to-water(brine)) as defined in EN 15879-1. This document also applies to hybrid units as defined in this standard. This document specifies the temperatures, part load conditions and the calculation methods for the determination of seasonal energy efficiency SEER and SEERon, seasonal space cooling energy efficiency ηs,c, seasonal coefficient of performance SCOP, SCOPon and SCOPnet, seasonal space heating energy efficiency ηs,h and seasonal energy performance ratio SEPR. Such calculation methods can be based on calculated or measured values. In case of measured values, this document specifies the test methods for determination of capacities, EER and COP values during active mode at part load conditions. It also establishes test methods for power input during thermostat-off mode, standby mode, off mode and crankcase heater mode. NOTE 1 The word “unit” is used instead of the full terms of the products. NOTE 2 The word “heating” is used to refer to space heating.

PDF Catalog

PDF Pages PDF Title
2 undefined
14 1 Scope
2 Normative references
15 3 Terms, definitions, symbols, abbreviated terms and units
3.1 Terms and definitions
28 3.2 Symbols, abbreviated terms and units
33 4 Part load conditions for space cooling
4.1 General
4.2 Air-to-air units
4.3 Water(brine)-to-air units
34 4.4 Air-to-water(brine) units
35 4.5 Water(brine)-to-water(brine) units
36 5 Calculation methods for seasonal space cooling efficiency ηs,c, SEER and SEERon
5.1 General
37 5.2 Calculation of the seasonal space cooling efficiency ηs,c
5.3 General formula for calculation of SEER
38 5.4 Calculation of the reference annual cooling demand QC
5.5 Calculation of the reference annual energy consumption for space cooling QCE
39 5.6 Calculation of SEERon
5.7 Calculation procedure for determination of EERbin values at part load conditions A, B, C and D
5.7.1 General
40 5.7.2 Calculation procedure for fixed capacity units
5.7.2.1 Air-to-air and water(brine)-to-air units
5.7.2.2 Air-to-water(brine), water(brine)-to-water(brine)
41 5.7.3 Calculation procedure for staged and variable capacity units
6 Part load conditions for space heating
6.1 General
42 6.2 Air-to-air units
43 6.3 Water(brine)-to-air-units
6.4 Air-to-water(brine) units
6.4.1 General
44 6.4.2 Low temperature application
45 6.4.3 Intermediate temperature application
46 6.4.4 Medium temperature application
47 6.4.5 High temperature application
6.5 DX-to-water(brine) and water(brine)-to-water(brine) units
6.5.1 General
48 6.5.2 Low temperature application
49 6.5.3 Intermediate temperature application
50 6.5.4 Medium temperature application
51 6.5.5 High temperature application
7 Calculation methods for seasonal space heating efficiency ηs,h, SCOP, SCOPon and SCOPnet of heat pumps
7.1 General
52 7.2 Calculation of the seasonal space heating efficiency ηs,h
7.3 General formula for calculation of SCOP
53 7.4 Calculation of the reference annual heating demand QH
7.5 Calculation of the annual energy consumption for heating QHE
54 7.6 Calculation of SCOPon and SCOPnet
56 7.7 Calculation procedure for determination of COPbin values at part load conditions A to G
7.7.1 General
7.7.2 Calculation procedure for fixed capacity units
7.7.2.1 Air-to-air and water(brine)-to-air units
57 7.7.2.2 Air-to-water(brine), water(brine)-to-water(brine) and DX-to-water(brine) units
7.7.3 Calculation procedure for staged and variable capacity units
7.7.3.1 For temperatures above or equal to Tbiv
7.7.3.2 For temperatures below Tbiv
58 7.8 Method for Psup calculation
8 Test and calculation methods for hybrid units
8.1 General
8.2 Separated method
8.2.1 General
59 8.2.2 Heat pump testing
8.2.2.1 Test conditions
8.2.2.2 Test installation and measurements
8.2.3 Boiler testing
8.2.4 Energy efficiency and seasonal coefficient of performance calculations
8.2.4.1 Calculation procedure for COPbin values at test conditions
8.2.4.2 Calculation of SCOPon
60 8.2.4.3 Calculation of SCOP and ηs,h
8.3 Combined test method
8.3.1 General
61 8.3.2 Test conditions and measurements
8.3.3 Test installation
8.3.4 Calculation of gas input
8.3.4.1 Volume flow
62 8.3.4.2 Mass flow
8.3.5 Calculation of liquid fuel input
8.3.6 Calculation of annual fuel consumption
63 8.3.7 Energy efficiency and seasonal coefficient of performance calculations
8.3.7.1 Calculation procedure for COPd values at test conditions
8.3.7.2 Calculation procedure for COPbin values at test conditions
64 8.3.7.3 Calculation of SCOPon
65 8.3.7.4 Calculation of the seasonal space heating efficiency, ηs,h
9 Part load conditions for process cooling
69 10 Calculation method for SEPR of process chillers and remote condenser process chillers
10.1 General formula for calculation of SEPR
70 10.2 Calculation procedure for determination of EERbin values at part load conditions A, B, C, D
10.2.1 General
71 10.2.2 Calculation procedure for fixed capacity units
10.2.3 Calculation procedure for staged and variable capacity units
72 11 Test methods for testing capacities, EERd and COPd values during active mode at part load conditions
11.1 General
11.2 Refrigerant piping
73 11.3 Basic principles
11.4 Uncertainties of measurement
75 11.5 Test procedures for units with fixed capacity
11.5.1 General
76 11.5.2 Air-to-air and water(brine)-to-air units – Determination of the degradation coefficient Cd
11.5.2.1 General
77 11.5.2.2 Air-to-air units – Cooling mode
11.5.2.3 Air-to-air units – Heating mode
11.5.2.4 Water(brine)-to-air units – Cooling mode
11.5.2.5 Water(brine)-to-air units – Heating mode
11.5.3 Air-to-water(brine), water(brine)-to-water(brine) and DX-to-water(brine) units – Determination of the degradation coefficient Cd
78 11.6 Test procedure for staged and variable capacity units
11.6.1 General
11.6.2 Settings for the required heating/cooling load
79 11.6.3 Compensation method
12 Test methods for electric power input during thermostat-off mode, standby mode and crankcase heater mode and off mode
12.1 Uncertainties of measurement
12.2 Measurement of electric power input during thermostat-off mode
80 12.3 Measurement of the electric power input during standby mode
12.4 Measurement of the electric power input during crankcase heater mode
12.5 Measurement of the electric power input during off mode
81 13 Test report
14 Testing and rating of individual indoor units
82 Annex A (informative)Applicable climate bins and hours for air conditioners with rated capacity of ≤ 12 kW for cooling, or heating if the product has no cooling function
A.1 Climate bins
A.1.1 Bin limit temperature
A.1.2 Cooling
83 A.1.3 Heating
84 A.2 Hours for active mode, thermostat-off, standby, off mode
A.2.1 Cooling
85 A.2.2 Heating
A.3 Hours used for crankcase heater mode
A.3.1 Cooling
A.3.2 Heating
86 Annex B (informative)Applicable climate bins and hours for air/water(brine)/DX-to-water(brine) heat pumps with a rated heat output ≤ 400 kW
B.1 Climate bins
B.1.1 Bin limit temperature
B.1.2 Heating
87 B.2 Hours for active, thermostat-off, standby and off modes – Heating
88 B.3 Hours used for crankcase heater mode – Heating
89 Annex C (informative)Applicable climate bins and hours for process chillers
C.1 Climate bins
93 Annex D (informative)Applicable climate bins and hours for air-to-air units > 12 kW, water(brine)-to-air units and comfort chillers
D.1 Climate bins
D.1.1 Bin limit temperature
D.1.2 Cooling
94 D.1.3 Heating
95 D.2 Hours for active, thermostat-off, standby and off modes
D.2.1 Cooling
96 D.2.2 Heating
D.3 Hours used for crankcase heater mode
D.3.1 Cooling
D.3.2 Heating
97 Annex E (informative)Determination of water(brine) temperature for fixed capacity units with variable outlet temperature
E.1 General
E.2 Test procedure for an air-to-water unit with fixed water flow rate
99 E.3 Test procedure for an air-to-water unit with variable water flow rate
101 Annex F (informative)Calculation example for SEERon and SEER – Application to a reversibleair-to-air unit with variable capacity
F.1 Calculation of SEERon
103 F.2 Calculation of SEER
F.2.1 Calculation of reference annual cooling demand (QC) according to Formula (3)
F.2.2 Calculation of SEER according to Formula (6)
104 Annex G (informative)Calculation example for SCOPon and SCOPnet – Application to a fixed capacity air-to-water(brine) heat pump used for low temperature application
109 Annex H (informative)Calculation example for SCOPon and SCOPnet – Application to a fixed capacity brine-to-water(brine) heat pump used for medium temperature application
116 Annex I (informative)Calculation examples for SCOPon for hybrid units
I.1 Calculation example for SCOPon for variable speed hybrid unit based on heat pump and boiler separated tests
118 I.2 Calculation example for SCOPon for hybrid unit using combined test method
120 Annex J (informative)Calculation example for SEPR – Application to a process chillerwith staged capacity
J.1 Rating performance
123 Annex K (informative)Compensation methods for air-to-water(brine)and water(brine)-to-water(brine) units
K.1 General
K.2 Compensation system for reduced capacity test in cooling mode
125 K.3 Compensation system for reduced capacity test in heating mode
127 Annex L (normative)Rating of outdoor units of multi-split air conditioners and heat pumps
L.1 General
L.2 Rating of outdoor units
L.2.1 General
L.2.2 Test procedure
128 L.3 Calculation of the SEER based on the EERoutdoor
L.4 Calculation of the SCOP based on the COPoutdoor
129 Annex M (normative)Testing and rating of individual indoor units
M.1 Indoor unit under test
M.2 Test methods
130 M.3 Test conditions
M.4 Rated performance
131 M.5 Data to be recorded
133 Annex ZA (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 206/2012aimed to be covered
134 Annex ZB (informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation(EU) No 626/2011 aimed to be covered
135 Annex ZC(informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013aimed to be covered
136 Annex ZD(informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013 aimed to be covered
138 Annex ZE(informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) 2015/1095aimed to be covered
139 Annex ZF(informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) 2016/2281aimed to be covered

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BS EN 14825:2022
$215.11