EN / 10-2015 / 1000683 © STULZ GmbH, Hamburg
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Maintenance Checklist STULZUltraSonic-SystemforDirectRoomHumidicationBNB-
17. Maintenance Checklist
Job to be performed Page Procedure and maintenance interval Date
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Date
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Date
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Visual inspection 48 - Tightness of connections of water-bearing parts
- Cleanness of filter
- Outside of unit for impurities
- Water tank for impurities, damage, microbial growth and
corrosion
- Humidity sensor and ventilation slots for impurities
- Solenoid valves for deposits
Every 3 months**
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51 - Check oscillators for deposits
- Check mist guide pipes for deposits
Every 6 months**
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Leak test 48 Inspect all screw and push-in connections for leaks and a secure fit
Every 6 months**
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Clean the air filter 50 Open filter drawer, clean filter
Every 6 months**
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Clean the water tank 51 Remove housing cover and retaining plate together with mist
guide pipes (open water tank), clean and
disinfect with hydrogen peroxide solution
Every 6 months**
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Inspect the electrical
system
52 Remove cover of control system and check electrics
Every 6 months**
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Replace float switches 55 Open water tank, remove float switch and fill valve unit
Approx. every 10,000 operating hours**
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Replace oscillators 58 Remove water tank, disconnect cables, detach oscillators
Approx. every 10,000 operating hours**
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Delete as applicable
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Time intervals may be shorter in isolated cases, depending on local conditions
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