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BS EN 12309-3:2024

BS EN 12309-3:2024

$215.11

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW – Requirements, test conditions and test methods

Published By Publication Date Number of Pages
BSI 2024 80
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1.1 Scope of EN 12309 series Appliances covered by this document include one or a combination of the following: – gas-fired sorption chiller; – gas-fired sorption chiller/heater; – gas-fired sorption heat pump; – hybrids based on gas sorption appliances. This document applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery. This document applies to appliances having flue gas systems of Type B and Type C (according to EN 1749:2020) and to appliances designed for outdoor installations, including Type A. EN 12309 does not apply to air conditioners, it only applies to appliances having: – integral burners under the control of fully automatic burner control systems; – closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated; – mechanical means to assist transportation of the combustion air and/or the flue gas. The above appliances can have one or more primary or secondary functions (i.e. heat recovery – see definitions in EN 12309-1:2023). In the case of packaged units (consisting of several parts), this document applies only to those designed and supplied as a complete package. The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309. Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309. All the symbols given in this text are to be used regardless of the language used. 1.2 Scope of this Part 3 of EN 12309 This part of EN 12309 specifies the requirements, test methods and conditions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW. This part of EN 12309 deals particularly with test protocols and tools to calculate the capacity, the gas utilization efficiency and the electrical power input of the appliance. This data can be used in particular to calculate the seasonal efficiency of the appliance.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
1.1 Scope of EN 12309 series
1.2 Scope of this Part 3 of EN 12309
12 2 Normative references
3 Terms and definitions
4 Classification
4.1 Classification of gases
4.2 Classification of appliances
4.2.1 Classification according to the mode of air supply and evacuation of the combustion products
13 4.2.2 Denomination
4.2.3 Classification of the operating conditions
5 Testing conditions
5.1 Environmental conditions and electrical power supply
15 5.2 Test conditions
22 6 Measurements
6.1 Heat Input
6.1.1 General conditions for operation of the gas-fired part of the appliance
6.1.2 Measurement of heat inputs under test conditions
23 6.2 Electrical power input
6.2.1 General conditions for operation of the electrical part of the appliance
24 6.2.2 Effective electrical power input
6.2.3 Electrical power input corrections of fans
6.2.3.1 General
6.2.3.2 Electrical power input correction of fan(s) for appliances without duct connection
6.2.3.3 Electrical power input correction of fan(s) for appliances with duct connection
25 6.2.4 Electrical power input correction of liquid pumps
6.2.4.1 General
6.2.4.2 Electrical power input correction for appliances with at least one internal liquid pump
26 6.2.4.3 Electrical power input correction for appliances without internal pump
6.3 Cooling mode
6.3.1 General
27 6.3.2 Measured cooling capacity
6.3.3 Effective cooling capacity
28 6.3.4 Heat recovery capacity in cooling mode
6.3.4.1 General
6.3.4.2 Measured heat recovery capacity
6.3.4.3 Effective heat recovery capacity
29 6.3.5 Gas utilization efficiency in cooling mode
6.4 Heating mode
6.4.1 General
6.4.2 Measured heating capacity
30 6.4.3 Effective heating capacity
6.4.3.1 General
6.4.3.2 Rated Heat Output
31 6.4.4 Gas utilization efficiency in Heating mode
6.5 Auxiliary energy factor
6.5.1 Cooling mode
6.5.2 Heating mode
6.6 Capacity correction
6.6.1 General
32 6.6.2 Capacity correction for integrated glandless circulators
6.6.3 Capacity correction for integrated dry motor pumps
6.6.4 Capacity correction for non-integrated liquid pumps
33 7 Test methods
7.1 General
7.1.1 Introduction
7.1.2 All appliances
34 7.1.3 Alternating appliances
7.1.4 Non ducted appliances
7.1.5 Ducted appliances
35 7.1.6 Air to water(brine) and water(brine) to water(brine) appliances
7.1.7 Sound measurements
7.2 Measurement for water(brine) to water(brine) appliances
7.2.1 Steady-state operation conditions
7.2.2 Measurement of heating capacity, cooling capacity, heat recovery capacity, gas input and electrical power input
7.2.3 Measurement of GUE
36 7.3 Measurement in cooling mode for air-to-water(brine) appliances
7.3.1 Steady-state operation conditions
7.3.2 Measurement of cooling capacity, heat recovery capacity, gas input and electrical power input
7.3.3 Measurement of GUE
7.4 Measurement in heating mode for air-to-water appliances
7.4.1 General
37 7.4.2 Preconditioning period
7.4.3 Equilibrium period
7.4.4 Data collection period
38 7.4.5 Test procedure when a defrost cycle ends the preconditioning period
7.4.6 Test procedure when a defrost cycle does not end the preconditioning period
7.4.6.1 General
7.4.6.2 Defrost during equilibrium or data collection period
7.4.6.3 Coefficient of change exceeds 2,5 % during data collection period
7.4.6.4 Test restart procedure
39 7.4.6.5 Test procedure for transient operation tests
7.4.6.6 Measurement of heating capacity, gas and electrical power inputs
7.4.6.7 Measurement of GUE
7.5 Reduced capacity tests
7.5.1 General
40 7.5.2 Cycling interval (ON-OFF) tests
41 7.6 Permissible deviations
46 7.7 Test methods for electric power consumption during thermostat off mode, standby mode and off mode
7.7.1 Measurement of electrical power consumption during thermostat off mode
7.7.2 Measurement of the electrical power consumption during standby mode
7.7.3 Measurement of the electric power consumption during off mode
7.8 Test results
49 7.9 Test apparatus
7.9.1 Arrangement of the test apparatus
7.9.1.1 General requirements
7.9.1.2 Test room for the air side
7.9.1.3 Appliances with duct connection
50 7.9.1.4 Appliances with integral pumps
7.9.2 Installation and connection of the appliance
7.9.2.1 General
7.9.2.2 Measuring points
7.10 Uncertainties of measurement
52 8 Marking and documentation
53 Annex A (normative)Determination of the liquid pump efficiency
A.1 General
A.2 Hydraulic power of the liquid pump
A.2.1 The pump is an integral part of the appliance
A.2.2 The pump is not an integral part of the appliance
54 A.3 Efficiency of integrated pumps
A.3.1 Glandless circulators
55 A.3.2 Dry motor pumps
57 A.4 Efficiency of non-integrated pumps
58 Annex B (normative)Electrical and capacity corrections to include in the electrical power input and in the measured heating, cooling and heat recovery capacities
60 Annex C (informative)Primary energy efficiency – Calculation at a single operating point
C.1 Primary energy ratio in heating mode
C.2 Primary energy ratio in cooling mode
61 Annex D (informative)Heating capacity tests – Flow chart and examples of different test sequences
D.1 Flow chart
62 D.2 Examples of test profiles
68 Annex E (informative)Direct method for air-to-water (brine) and water (brine) to water (brine) appliances
E.1 General
E.2 Compensation system air to water appliances
69 E.3 Compensation system for water/brine to water appliances
70 Annex F (normative)Measurement in ON/OFF mode
F.1 General
F.2 Test procedure for measurement in ON/OFF mode
73 Annex G (informative)Test report
G.1 General information
G.2 Additional information
74 G.3 Test results
75 Annex ZA (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013L 239/136 aimed to be covered
76 Annex ZB (informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013L 239/1 aimed to be covered
78 Annex ZC (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 2016/2281L 346/1 aimed to be covered

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