AS NZS 3823.1.5:2015 pdf free download

AS NZS 3823.1.5:2015 pdf free download
AS NZS 3823.1.5:2015 pdf free download.Performance of electrical appliances— Air conditioners and heat pumps
7.1.1 General
Capacity tests shall be conducted in accordance with the testing requirements specified in Appendix A, using the calorimeter test method (see Appendix D), subject to the provision that the test results are within the limits of uncertainties of measurements established in Clause 7.2.
7.1.2 Calorimeter test method
When using the calorimeter method for cooling capacity tests and for steady-state heating capacity tests, two simultaneous methods of determining capacities shall be used. One method determines the capacity on the indoor side, the other measures the capacity on the outdoor side. The capacity determined using the outdoor-side data shall agree within 5% of the value obtained using the indoor-side data for the test to be valid. Steady-state conditions are achieved when the measured capacity at each 10-min time interval does not vary by more than 2% from the average measured capacity over the previous 30 min.
7.1.3 Capacity tests
On the cooling cycle, it is recommended that the latent cooling capacity be determined using the cooling condensate method (see Appendix E) subject to the provision that the test results are within the limits of uncertainties of measurements established in Clause 7.2.
7.2 Uncertainties of measurement
The uncertainties of measurement shall not exceed the values specified in Table 7.1.
The steady-state cooling and heating capacities determined using the calorimeter method shall be determined with a maximum uncertainty of 10%. This value is an expanded uncertainty of measurement expressed at the level of confidence of 95%.
7.3 Test tolerances for steady-state cooling and heating tests
7.3.1 Variation of individual observations
The maximum permissible variation of any individual observation from a specified test condition during a steady-state cooling and heating capacity test is listed in Column 3 of Table 7.2. When expressed as a percentage, the maximum allowable variation is the specified percentage of the arithmetical average of the observations.