IEC 61591-2019 pdf free.Cooking fume extractors – Methods for measuring performance.
6.1 Test room
The tests are carried out in a draught-free room.The ambient temperature of the room ismaintained at (23 ± 2)°C.The absolute air pressure shall be between 913 hPa and 1 063 hPa.
6.2Installation and positioning
The appliance has to be clean and free of any residues of packaging material and protectivefoil. All tests have to be carried out following the order of the clauses of this document with oneand the same appliance.
The cooking fume extractor (except for the down-draft system) is installed above a cookingappliance with the distance of (600 ±10) mm.The distance is determined between the lowestlevel of the cooking fume extractor and the highest level of the cooking appliance.The cookingfume extractor is installed and operated in accordance with the manufacturer’s instructions(except for the distance above the cooking appliance).
Any extendible visor, which is extendable for normal use in accordance with the manufacturer’sinstructions, shall be opened accordingly. If no instructions are given， the extendible visor isfully opened.
lf the down-draft system can be elevated, the manufacturer’s instructions are followed;otherwise, it shall be measured in its maximum elevated position for use.
The maximum sized duct in accordance with the manfacturer’s instructions is to be used.
For all tests, the appliance is operated with unchanged default factory settings (e.g. brightnessof the display or changeable light colour). Supplementary parts that are part of the applianceare mounted in accordance with the manufacturer’s instructions. Ensure that no network isconnected to the appliance for the duration of the measurement, except for the remote control.
Before the measurement is made, any conditioning of the cooking fume extractor,unlessexplicitly required in this document, is not allowed.
Ensure that any automatic modes, where the fan speed is altered,are switched off.
6.3 Electricity supply
The cooking fume extractor is supplied at the rated voltage ±1 %.
lf the appliance has a rated voltage range, the tests are carried out at the nominal voltage ofthe country where the appliance is intended to be used.
The supply frequency shall be at the rated frequency ±1 % throughout the test. lf a frequencyrange is indicated, then the test frequency shall be that of the nominal frequency of the countryin which the appliance is intended to be used.
6.4 Filters
For all tests, it shall be ensured that all filters are positioned correctly.IEC 61591 pdf download.