18Minimum or silent air purification speed.Maximum or silent air purification speed.Installation requirementso This appliance must be connected to 220/240 V50 Hz mains electricity supply using an earthedplug.o It must be protected with a 10 A slow-action fuse.o Should an extension lead be needed, this leadmust be at least 1.5 mm2 per terminal thick, nomore than 25 m. long and earthed.o There is a cavity at the back of the appliance forthe mains electricity lead.o Do not allow water to enter the appliance.o Do not block the air inlets or outlets on yourappliance, especially when used for heating.o To ensure correct appliance operation, maintainminimum distances of 20 cm to adjacent objects.see fig 4.o The mains electricity supply connection cablemust only be replaced by authorisedmembers of the manufacturer ’s OfficialTechnical Service.o When the appliance is switched on and set towork in dehumidification mode, the user mayhear a whistling or bubbling sound. There isno cause for concern; these noises are notsymptomatic of a fault.o Be careful on removing the tank from theappliance when full of water. Hold the sidesgently but firmly and try to keep the tank inas upright a position as possible at all times.o Remember that when the appliance is turnedoff, it is necessary to wait for approximately 3minutes before turning it back on again. Thisperiod of time is required in order to ensurecorrect appliance operation.Operationwarnings