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EN/04.2021 © STULZ GmbH – all rights reserved
steam humidifier iNstruCtiONs
11.1.3.3 Function of the LEDs in info mode
green LED blinks...
1x
2x
3x
4x
5x
6x
7x
8x
9x
10x
steam capacity in %
10
20
30
40
50
60
70
80
90
100
11.1.3.4 Manual draining
notice
If the water has low conductivity, it is possible in the first few hours of operation that the maxi
-
mum steam output is not achieved. This is normal. As soon as the water reaches adequate con
-
ductivity through the vaporization process, the steam humidifier will work at maximum output.
The info mode is activated by pressing the drain/info key for an extended period of time (> 3 seconds). In info
mode the LED‘s on the control unit indicate the current operating status of the steam humidifier.
notice
The info mode is automatically reset after 15 minutes, or manually by pressing the drain/info
key again.
• the green LED blinks. The number of blinks indicates the current steam output in % of the maximum steam
capacity:
1. Briefly press the drain/info key. The heating voltage is interrupted and the drain valve opens. The yellow
LED blinks. Note: the drain valve closes after 10 minutes automatically
2. To stop the drain cycle briefly press the drain/info key again.
11.1.3.5 Taking the unit out of operation
1. If the unit has to be switched off because of a malfunction, please activate the info mode and note the
number (number of blinks of the red LED) of the actual error.
2. Close the shut-off valve in the water supply line.
3. Start manual draining and wait until the steam cylinder is empty (approx. 5-10 minutes).
4. Disconnect the steam humidifier from the mains: Switch off the humidifier power switch in the electric box.
After switching on the steam humidifier is ready for operation. As soon as the A/C unit controller requires
humidity, power is switched on and the green LED lights on the control unit ECCM/S. The inlet valve opens
after approx. 60 seconds and the steam cylinder fills with water. The submerged electrodes heat the water
up and after a few minutes (approx. 5–10 minutes, depending on the conductivity of the water) steam is
produced.
