Airtec RO Plus l - Raw Water Supply; Filter House

54
8.3 Raw water supply
8. Service
8.4 Filter house
Check/replace lter cartridge. • Close of water and separate the filter house.
• Take out filter cartridge and check condition.
- The cartridge is replaced min. twice per year or before is has a ”pass-
through“ color in center of the filter element.
- Keep an eye out for iron and chloride
• Iron turns the filter red
• Chlorine you can smell
• Check that the O-ring seal on the filter house is intact.
• Clean the filter housing before installing a new filter.
• When installing a new filter cartridge in the filter house, use the wrapping
of the new cartridge as protection and let the cartridge slide into place
untouched.
Cónrm the inlet water pressure. • Locate the pressure gauge and make a note of the pressure reading.
•
The reading must be performed during full operation of RO, if this is
installed, or from the pump unit in full operation.
Check for leaks. • Check all connection are tight.
• Leave it for 10 min and come back all should be dry.
Fill in AirtecCare checklist 2.1 - 2.3.
Take a water sample before the softening and measure dH⁰. • For this the Duroval dH° tester is used.
• The water sample is taken out by a nearby water tab from the same pipeline
as the humidity system.
• If there is no water tap nearby, take the raw water sample from first filter
house when changing filter elemens.
• Let the water run for before taking out a sample.
• Fill it up to the 5 ml line.
• Add one drop of füssig.
• Shake it.
• Fill the syring with Duroval A up to the 0 line.
• Slowly add Duraval A until water turns green.
• Read dH° value on syring.
Do a conductivity reading from the same test point. • Let the water run for 1 min.
• Flush the test tube/cup.
• Follow the instructions from the supplied conductivity reader.
Do a visual check on the appearance and smell of the sample water.
Fill in AirtecCare checklist 1.1 - 1.3.
201218