Maintenance Intervals; Long-Term Shutdown; Disposal; Warning - Grundfos DSS Installation And Operating Instructions Manual

10.2 Maintenance intervals

10.2.1 Daily checks
• Inspect the tightness visually.
10.2.2 Regular checks
Carry out regular checks weekly or monthly, depending on the
type of dosing pump and dosing medium. See the installation and
operating instructions of the dosing pump and characteristic of
the dosing medium.
• Check the dosing performance.
• Check the strainer
– clean the strainer, if necessary.
• Maintain the dosing pump
– see installation and operating instructions of the dosing
pump.
• Maintain the pressure loading valve
– see installation and operating instructions of the pressure
loading valve.
• Check all accessories such as pulsation dampers and level
switches to ensure they are functioning properly.
10.2.3 Annual checks
• Check the entire installation
– replace gaskets, O-rings, diaphragms and other wear parts,
if necessary.
After maintenance, check the proper functioning and
Note
Note
tightness of the entire installation.

11. Long-term shutdown

Warning

Some chemicals react with water, which can lead to
explosions. If the dosing medium can react with
water, the DSS system must be flushed with a
medium compatible with the dosing medium.
1. Flush the dosing tank, lines, pipes, connections and pumps.
– The flushing can be done with water if the dosing medium is
compatible with water.
– In case of danger of frost, remove remaining medium from
tanks, lines and connections with compressed air.
2. Disconnect the DSS system from the power supply.

12. Disposal

This product or parts of it must be disposed of in an
environmentally sound way. Use appropriate waste collection
services. If this is not possible, contact the nearest Grundfos
company or service workshop.
Subject to alterations.
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