Stulz ENS Series - 16 Maintenance Checklist

© STULZ GmbH, Hamburg DE / 06-2016 / 1000687
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STULZ UltraSonic -System for duct humidication ENS 14 A - 18 A- Maintenance Checklist
16. Maintenance Checklist
Job to be performed
Page
Procedure and maintenance interval
Date Signature
Date Signature
Date Signature
OK*
OK*
OK*
Visual inspection
75
- Tightness of connections of water-bearing parts
- Cleanness of filter - Outside of unit for impurities -
Water tank for impurities, damage, microbial growth and
corrosion
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Humidity sensor and ventilation slots for impurities
- Solenoid valves for deposits
Every 3 months**
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77
- Check oscillators for deposits
- Check mist guide pipes for deposits
Every 6 months**
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Leak test
75
Inspect all screw and push-in connections for leaks and a secure fit
Every 6 months**
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Clean the water tank
77
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
80
Remove cover of control system and check electrics
Every 6 months**
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Replace float switches
83
Open water tank, remove float switch and fill valve unit
Approx. every 10,000 operating hours**
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Replace oscillators
85
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