EN / 10-2015 / 1000683
© STULZ GmbH, Hamburg
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78
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Maintenance
STULZUltraSonic-SystemforDirectRoomHumidificationBNB-
3
Clean the water tank.
Only clean the surface of the transducer
with a soft cloth, to prevent scratches.
4
Slacken the stainless steel screw next
tothefloatswitch.
ThefloatswitchandPCBcannowbe
pulled upward and out.
5
Clean parts with demineralized drinking
water and a soft cloth. Check parts for
damage and replace if necessary.
2
Slacken the two rear Phillips screws and
take off the cover
of the water tank.
1
Perform steps 1-9 from section "11.5.
Inspect the electrical system" on page
80.
11.4.3. Cleaning the water tank, transducers and mist guide tubes
Proceedasfollowstocleanthewatertank,transducersandmistguidetubes:
CAUTION
Float switches.
Takecarenottodamagethefloatswitches!
NOTICE
CAUTION
Replace the transducer.
If the surface of an transducer is scratched,
replace it
.
Note
CAUTION
Treatment of drinking water.
If mineral residues or other major impurities are
discovered, check the upstream drinking water
treatment system.
Note