Heatrae Sadia CVE ECO 2, Инструкция по установке и эксплуатации

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Each valve should be placed back in the same duct
opening in the same room from which it was removed.
Cleaning valves
Valves without a filter can be removed from the duct
opening. The foam ring (if applicable) should be
removed before cleaning the valve in warm water
(and washing- up liquid). Replace the valve in the duct
opening after cleaning. The valve should always be
placed in the same duct opening it was removed from.
Maintenance of Ducting
It is our recommendation that the ducting connected
to the Extract Terminals (located in kitchens, utilities,
bathrooms and en-suites) needs to be inspected every
3 years and cleaned every 6 years. Cleaning of the
grille and ducting can be carried out with a damp cloth.