🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 442-2:1997:2003 Edition

BS EN 442-2:1997:2003 Edition

$198.66

Specification for radiators and convectors – Test methods and rating

Published By Publication Date Number of Pages
BSI 2003 64
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 Committees responsible for this British Standard
3 Contents
6 Foreword
Foreword to amendment A2
Contents
9 Introduction
1 Scope
2 Normative references
10 3 Definitions
3.1 heating appliance
3.2 independent heating appliance
3.3 radiator
3.4 sectional heating appliances (mainly applied to radiators)
3.5 free convection heating appliance
3.6 forced convection heating appliance
3.7 convector
3.8 fan-assisted radiator or convector
3.9 height of the unheated convective chimney
3.10 wet heating surface; primary heating surface
3.11 dry heating surface; secondary heating surface
11 3.12 family of heating appliances
3.13 type of heating appliances
3.14 model
3.15 range of heights
3.16 module of heating appliances
3.17 sample
3.18 inlet water temperature
3.19 outlet water temperature
3.20 temperature drop
3.21 mean water temperature
3.22 reference air temperature
3.23 excess temperature
12 3.24 standard excess temperature
3.25 air pressure
3.26 standard air pressure
3.27 water flow rate
3.28 standard water flow rate
3.29 standard thermal output
3.30 characteristic equation
3.31 standard characteristic equation
3.32 regression equation of a type
3.33 standard thermal output of the module
3.34 test pressure
3.35 maximum operating pressure
3.36 maximum operating temperature
13 3.37 test installation
3.38 test system
3.39 test systems circuit
3.40 repeatability of a test installation
3.41 reproducibility of a test installation
3.42 pressure drop
3.43 standard pressure drop
14 4 Symbols and units of measurement
Table 1 Symbols, quantity and units of measurement
15 5 Selection of heating appliances to be tested
5.1 Classification
5.2 Selection of models to be tested for determining the thermal outputs of a type
Table 2 Minimum number of models to be tested
5.3 Testing samples submission and identification
17 Table 3 Dimensional tolerances
18 6 Laboratory arrangements and test methods
6.1 Principle
6.2 Apparatus
20 Figure 1 Sandwich panel cooled by water
21 Figure 2 Sandwich panel cooled by water with hole for external connections
Figure 3 Steel water cooled panel cross�section
22 Figure 4 Panel assembly
23 Figure 5 Cooling circuits
25 Figure 6 Master radiator No. 1
26 Figure 7 Master radiator No.2
27 Figure 8 Master radiator No.3
29 6.3 Preparation for thermal output test
30 6.4 Test methods
31 Figure 9 Weighing method: Test set�up
32 Figure 10 Electric method: Test set�up
34 6.5 Presentation of results
7 Test report
7.1 The laboratory shall prepare a test report based on the procedures and calculations contained…
7.2 The following data shall be stated in the test report:
35 Table 4 Radiated heat output factor and exponent
36 Annex A (normative) Master radiators dimensional verification
Figure A.1 Master radiator No.1 dimensional verification. Measurements to be taken
38 Figure A.2 Master radiator No.2 dimensional verification form
40 Figure A.3 Master radiator No.3 dimensional verification form. Measurements to be taken
42 Annex B (normative) Determination of pressure drop
B.1 Introduction
B.2 Pressure drop equation of a type
(normative) Determination of pressure drop
43 B.2.1 Pressure drop characteristic equation of a model
B.3 Test method
B.3.1 Test circuit
B.3.2 Pressure tappings
B.4 Test procedure
B.4.1 Setting up
B.5 Measurements of differential pressures using an inverted U tube manometer
B.5.1 Technique of measurement
B.5.2 Surface tension effect
44 B.5.3 Leakage
B.5.4 Air pockets in connecting piping
B.5.5 Blocked pressure holes
B.5.6 Level of inlet and outlet connections
B.5.7 Damping (throttling) of excessive movement (oscillation) of inverted�U�tube manometer liquid
45 Figure B.1 Pressure drop measuring set-up (open-circuit water system)
46 Figure B.2 Inverted U tube manometer
Figure B.3 Piezometer ring detail
47 Annex C (normative) Least squares regression for a model
48 Annex D (normative) Analysis of test results by the method of least squares multiple regression
49 Annex E (normative) Specimen of the test report
52 Annex F (informative) Apparatus and method for checking the bulk temperature measuring devices
Figure F.1 Apparatus for checking the bulk temperature measuring devices
53 Annex G (informative) Examples of typical appliances according to
Figure G.1 Steel sectional radiator (vertical water flow)
54 Figure G.2 Cast aluminium sectional radiator (vertical water flow, front closed)
55 Figure G.3 Sectional radiator (horizontal water flow)
56 Figure G.4 Steel modular panel
57 Figure G.5 Pipe grill radiator
58 Figure G.6 Double panel radiator with convectors
59 Figure G.7 Multi-panel with convector
60 Figure G.8 Finned tube convectors
61 Annex H (normative) Determination of the Õ
62 Annex J (normative) Traceability of the thermal output measurement of radiators and convectors
J.1 Scope
J.2 Thermal output traceability
J.2.1 Reference test installations
J.2.2 Approved test installations
J.3 Handling of the master radiator sets

Related products

BS EN 442-2:1997
$198.66