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9.6.3 Heater element replacement
Removal
»
Remove and open steam cylinder as
described in the
Removal of the
steam
cylinder section.
»
Separate thermo switch capillary
tube from heater element(s) by
detaching the retainer clips.
»
Remove wiring of the heater ele-
ment(s) in question from connector
terminals (mark positions for rec-
lamping).
»
Unscrew heater element fixing
nut(s) from cylinder cover.
»
Remove adjusting washer and
grounding lug/lock washer (if pres-
ent) and pull heater element/s down-
ward out of steam cylinder cover.
»
Clean the sealing surface on the
underside of the cover around the
area where the new heater element
will be installed.
Reinstallation
»
Install replacement heater ele-
ment(s) (with new sealing) while
considering the correct sequence of
all of the mounting parts. Ensure
proper grounding and tighten nut(s).
»
Insert heater element wires into the
terminals of the wiring connector fol-
lowing the markings made when dis-
sembling. Polarity is not an issue.
»
Refit thermo switch capillary tube to
heater element(s) using retainer
clips.
»
Reassemble steam cylinder and
reinstall in humidifier housing as
described in the
Reinstallation of
the steam cylinder
section.
»
Follow the handling instructions in
the section
Leakage test.
9.6.4 Thermo switch replacement (for
heater elements)
O:Thermo switch
P: Thermo sensor release button
Q: Seal
R: Steam cylinder
S: Screw
T: Capillary tube
Removal
»
Remove and open the steam cylin-
der as described above in “Remov-
ing and cleaning the steam cylinder”
section.
»
Remove wiring of the thermo switch
from connector terminals (mark
positions for reclamping).
»
Detach capillary tube (T) retainer
clips from heater element(s).
»
Separate capillary tube from heater
element(s) (4).
»
Unscrew the two screws holding
thermo switch (S) in place.
»
Pull out thermo switch (O) upwards
off steam cylinder cover (R).
Risk of material damage!
Do not buckle the thermo switch capillary tube!
O
S
R
Q
T
S
P
NOTICE