BS 5491:1977
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Specification for rating and testing unit air conditioners of above 7 kW cooling capacity
Hardcopy , PDF
15-04-1998
BS EN 255-2:1997
BS EN 255-1:1997
BS EN 255-3:1997
BS EN 814-1:1997
BS EN 814-3:1997
BS EN 814-2:1997
BS EN 255-4:1997
BS EN 810:1997
English
29-07-1977
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Foreword
Cooperating organizations
Specification
1. Scope
2. References
3. Definitions
4. Test conditions
5. Rating conditions
6. Test methods for cooling capacity
7. Psychrometric methods
8. Compressor calibration method
9. Volatile refrigerant flow method
10. Condenser water method
11. Airflow measurement
12. Condensate measurement
13. Instruments
14. Test preparation and performance
15. Test results
Appendix
A. Determination of nozzle discharge coefficient
Tables
1. Cooling capacity test conditions
2. Maximum operating test conditions
3. Freeze-up test conditions
4. Enclosure sweat test conditions
5. Test method applicability
6. Data to be recorded
7. Test tolerances
Figures
1. Open tunnel air-enthalpy psychrometric test method
arrangement
2. Closed tunnel air-enthalpy psychrometric test method
arrangement
3. Enclosure air-enthalpy psychrometric test method
arrangement
4. Typical air mixing and sampling devices
5. Pressure equalizing device
6. Airflow measuring nozzle
7. Airflow measuring apparatus
Covers air conditioners employing air- or water-cooled condensers and the use of air conditioners for cooling, but does not cover the performance of such conditioners when used for heating or humidification. Test conditions and methods for determining performance characteristics. Conditions on which ratings are based and test methods for determining ratings.
| Committee |
RHE/17
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 1042-1.1(1981) : 1981 | MEASUREMENT OF FLUID FLOW IN CLOSED CONDUITS - SPECIFICATION FOR SQUARE-EDGED ORIFICE PLATES, NOZZLES AND VENTURI TUBES INSERTED IN CIRCULAR CROSS SECTION CONDUITS RUNNING FULL |
| BS 1042-1.5(1987) : 1987 | MEASUREMENTS OF FLUID FLOW IN CLOSED CONDUITS - GUIDE TO THE EFFECT OF DEPARTURE FROM THE STANDARD CONDITIONS SPECIFIED IN SECTION 1.1 |
| BS 1042-1.4(1984) : 1984 | MEASUREMENT OF FLUID FLOW IN CLOSED CONDUITS - GUIDE TO THE USE OF DEVICES SPECIFIED IN SECTIONS 1.1 AND 1.2 |
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