Airtec RO Plus l - Atomized Water Bio Test (Optional); Disinfection

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8. Service
8.12 Atomized water bio test (optional)
8.13
Disinfection
Take a water sample from the last nozzle on a string. • Let the system run for 2 min.
• Disinfect the test point nozzle with alcohol and fire.
•
Be aware of ATEX and fire regulations.
• Carefully avoid any contamination of the sample, fingers, dust etc.
• Use a bottle from an approved laboratory.
The test – accordingly with VDI 6022 guidelines. • Legionella – limit 100 KBE/ml
• 20 ⁰C bacteria - limit 1000 KBE/ml
• 36 ⁰C bacteria – limit 1000 KBE/ml
Should the test fail. • The reason for this need to be found and analyzed
• Proper preventive measures implemented
• See troubleshooting guide
A disinfection should be conducted if. • 2 consecutive bio tests show exceeding values.
Procedure for disinfection. • Follow all local rules and regulations.
• Relevant areas should be sealed off so that no persons can enter during the
process.
•
Carefully read and follow the instructions for a suitable disinfectant.
• Description below is based on the use of Kickstart.
• Measure and note the existing PH value of the water at the most distant
atomizer.
• Install a dosing system at the water inlet of the system, prior to water
treatment.
• Set the dosing system to produce a 1 to 2 % mix.
• If the system is equipped with an RO system, empty the tank and let the RO.
Produce a full new tank that includes the disinfection mix.
• Measure and note the PH value of the mix.
• Remove a nozzle on the unit, furthest from the pump or if it splits in more
than one line, you have to remove the last nozzle on each line.
• Insert a 10mm sliplock fittings, and attach a 10 mm hose to a 5 or 10 l clear
bucket
• Start up only this one zone - remember to deactivate flow alarm.
• Run the zone until the mix is all the way to the bucket. System volume 10mm
hose is 2,8 l per 100 m.
• Stop the zone and repeat this with all zones.
• Leave the mix to work for 30 minutes.
• Remove the dosing equipment or empty the RO tank.
• Connect pump supply to clean water line again.
• Startup one zone at the time, and flush it until you have clean water in the
bucket.
• Repeat this for all zones.
• Properly ventilate the rooms.
• Unseal the areas.
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