11 © STULZ GmbH – all rights reserved EN/03.2016
steam humidifier iNstruCtiONs
CAUTION
It is not permitted to use repaired fuses or to short-circuit the fuse holder.
7
Foam detection in the
steam cylinder
7
Foam control
impossible
Formation of foam in steam cylinder. Empty/flush steam cylinder.
Set jumper on “DRN” (see chapter 11.1.1.3).
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8
Main contactor
jammed
Main contactor jammed in activated
position.
Check/replace main contactor.
9
Drain valve blocked
9
Drain valve blocked
Drain valve blocked or defective.
Steam cylinder outlet blocked.
Clean/replace drain valve.
Clean steam cylinder outlet.
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10
Rotary switch in
wrong position
Rotary switch on control unit ECCM/S is
set to an invalid position.
Set rotary switch on control unit ECCM/S to the
position for the corresponding steam cylinder
type (see chapter 11.1.1.3).
11.1.4.5 Replacement of fine-wire fuse on the control unit ECCM/S
2 A, time-lag
If the fine-wire fuse on the control unit ECCM/S blows this is usually due to a faulty coil of the inlet or drain
valve or the main contactor. Therefore you should test these components before replacing the fuse.
To replace the fine-wire fuse proceed as follows:
1. Set the steam humidifier OEM2 out of opera-
tion as described in chapter 11.1.3.5, separate
the unit from the mains and secure it against
unintentional switching on. Take care that the
electricity supply to the control unit ECCM/S is
disconnected (check with voltage tester).
2. Replace fine-wire fuse (see figure below) with a
fuse of the given type with the specified nominal
current rating.
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