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© STULZ GmbH – all rights reserved EN/04.2021
steam humidifier iNstruCtiONs
Danger
Mains voltage
to controller
alarm input
input signal from the controller
11.1.1.2 Wiring diagram of the control unit ECCM/S
B5
Level sensor steam cylinder
F1
Fuse control board (2 A, time-lag)
F2/Q2 Automatic fuse control voltage
F3/Q3 MCB humidifier
H1
Red LED: Error
H2
Yellow LED: Service, Warning
H3
Green LED: Steam production
JP1
Jumper block 1
JP2
Jumper block 2
S1
Rotary switch unit type
S2
Drain/Info key
Sx% Potentiometer power limitation
%rH Potentiometer humidity value
Y1
Main contactor heating voltage
Y2
Inlet valve
Y3
Drain valve
T1
Current sensor