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12. Placing out of operation and preservation
When the time of nonuse exceeds two days, the system must be
preserved.
Preparation
Prepare preservative agent
DANGER!
Personal injury hazard caused by sodium disulfite handling
Sodium disulfite
•
is harmful to health when swallowed
•
may cause heavy eye injury
•
develops toxic gases when in contact with acids
For this reason, when handling sodium disulfite,
•
read and obey all security instructions according to the
Security data sheet and those attached to the transporta-
tion box cover
•
Wear personal protective equipment
Step
Action
1
Pull mains plug.
2
Cut raw water supply and disconnect raw water hose with system
separator.
3
Disconnect permeate hose from heating system; guide hose to
waste water drain; ensure unit can drain freely according to DIN EN
1717.
4
Unscrew cover from filter housing and remove filtering candle.
5
Continue with „Prepare preservative agent“.
1
Fill
0.5 Liter of clean water
in a vessel of at least 1 Liter capacity,
use of permeate is best.
2
Open chemical product package and pour 5 grams of
sodium disul-
fite
in vessel (corresponds to approximately one level teaspoon). A
concentration of 1% will result. Ensure that the chemical product has
fully dissolved and homogenised.
3
Close chemical product package carfully.
