RANGEHOOD CONTROLS & CLEANING
RANGEHOOD CLEANING
Qasair Rangehoods are made from stainless steel, either type 304 or type 316.
* Type 304 is classified as 18/8 stainless steel
* Type 316 is classified as 18/10 stainless steel
This means that the stainless steel is made of 18% nickel and either 8% or 10% of chromium
respectively.
Stainless steel gets its protective coating from the chromium oxidising in the air to form a
protective surface of chromium oxide. This can be attacked by different substances, such as
salt water or sea air. The stainless steel will start to show pit marks which are referred to in
the industry as tea staining. This will happen to marine grade stainless steel type 316 in the
same way it will happen to stainless steel type 304, it will just take longer to happen.
The way to overcome this is to clean the stainless steel with warm soapy water and then
polish it with a cloth so that the chromium will oxidise again.
When exposed to sea water or sea side conditions this is only a stop gap measure as the
attack will start again.
With stainless steel rangehoods exposed in Alfresco areas we recommend spraying the
hood with vegetable oil and rubbing it all over the rangehood, if it is going to be unused over
a period of time.
FILTER CLEANING
For the best results, please clean filters regularly.
Condari recommends cleaning filters once per month, or immediately after heavy use.
You can do this by hand washing in warm soapy water, or by placing filters in the top
rack of the dishwasher using a detergent of pH 8 or less.
Note: Washing the filters in the dishwasher may cause discolouration of the filters.
We recommend washing filters in the dishwasher without detergent or use one of the
powder detergent.
Ensure the filters are completely dry before placing them back.
Do not operate the rangehood without the filters installed.
Condari does not recommend the use of corrosive, caustic or acidic products,
particularly industrial or citric products.
Condari has experienced problems with many of the dishwashing detergents now on
the market. Particularly with the tablet type detergents as many come from overseas,
which are made for a hard water environment. We have found that these detergents
have a deleterious effect on the filters and the result is that the filters last for about 50
to 60 washes.
This is equivalent to about 5 to 6 years life.
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