UL 60335-2-89-2021 pdf download

UL 60335-2-89-2021 pdf download.Household and Similar Electrical Appliances – Safety – Part 2-89: Particular Requirements for Commercial Refrigerating Appliances and Ice-Makers with an Incorporated or Remote Refrigerant Unit or Motor- Compressor.
11.2 Replacement: BUILT-IN APPLIANCES are installed in accordance with the instructions. Otherappliances are placed in a test enclosure with the walls and ceiling enclosing the appliance being as close as possible to all its sides and top surface. Ifthe instructions state that the appliance is to be installed with a free distance between the appliance and the walls or the ceiling, then the appliance is installed in the test enclosure in accordance with these instructions. Ifthe appliance has a remote REFRIGERANT UNIT or motor-compressor, then only the REFRIGERATED DISPLAY and STORAGE CABINET is installed in the test enclosure, the remote REFRIGERANTUNIT ormotor-compressoris placed on the floorofthe test corneraway from walls. Dull black painted plywood approximately 20 mm thick is used for the test corner, the supports and forthe installation of BUILT-IN APPLIANCES and the test enclosure forotherappliances. 11.2DV DE Modification ofClause 11.2 ofthe Part2 byadding the following note: NOTE 101DV For evaporating and condensing units, it may not be necessary to operate the refrigeration system during the tests of Clauses 10 and 11 if all of the following apply: – the motor-compressor is in compliance with UL 60335-2-34; – the motor-compressor RLA marked on the appliance is not less than 64 % of the motor-compressor MCC; and – the control box is externally loaded at not less than the marked compressor RLA or MRC and the marked motor rated current or MOC. 11.5 Addition: The appliance is operated under NORMAL OPERATION but with user adjustable temperature control devices set to give the lowest temperature. 11.6 Addition: The appliance is operated under NORMAL OPERATION but with user adjustable temperature control devices set to give the lowest temperature. 11.7 Replacement: The appliance is operated until steadyconditions are established.
11.101 The appliance is supplied at the most unfavourable voltage between 0,94 and 1,06 times the RATED VOLTAGE . If the defrosting time is controlled by an adjustable device, the device is set to the time given bythe manufacturer. If a control device is used that stops the defrosting at a given temperature or pressure, the defrosting period is automaticallyterminated when the control operates. The temperatures and temperature rises shall not exceed the values given in Tables 3 and Table 101. 11.102 ANCILLARY HEATING ELEMENTS are energized with the refrigerating system switched off, if this is possible in normal use. Theyare supplied at 1,15 times theirpowerinput rating, until steadyconditions are reached. Temperature rises are measured by thermocouples fixed on the outside surface of the insulation of the ANCILLARYHEATING ELEMENT . Temperature rises shall not exceed the values specified in 11.8. 11.103DV DR Addthe following clause to Clause 11 ofthe Part2: During the tests of Clause 11, the pressures shall be monitored continuously. During the test mentioned in Clause 11.8, after stabilization of temperatures and pressures, the unit shall be de-energized and pressures recorded to obtain maximum equalization (standstill) pressure values. Maximum pressures obtained shall be used to determine test values for Annex 101.DVJ and compliance with CSA B52 and CSA C22.2 No. 140.3, as applicable, or UL 207. In order to determine the standstill pressure, after de-energizing the unit shall be soaked out for 1 hour. For Stirling refrigeration systems, the mean pressure is to be measured. 12 Void 13 Leakage current and electric strength at operating temperature This clause of Part 1 is applicable. 13.2DV.4 D2 Modification ofClause 13.2 ofthe Part1 byadding the following The leakage current test does not apply to APPLIANCES NOT ACCESSIBLE TO THE GENERAL PUBLIC . The electrical strength test may be completed after testing as required by Clause 15. UL 60335-2-89-2021 pdf download.