18 EN/01.2019/G22 © STULZ GmbH – all rights reserved
EC TOWER TECHNICAL MANUAL
ECU 91 - Front ECU 91 - Rear
ECU 181/251 - Front ECU 181/251 - Rear
Stop valve
Junction box 2
Junction box 2:
For communication with the
outdoor unit
Temp./humidity sensor B01
Electric heater
Fan
Stop valve
Junction box 2:
Junction box 2:
For communication
with the outdoor
unit
Fan
Junction box 1
Temp./humidity sensor B01
Steam cylinder
Hose
Steam lance
Steam lance
Steam cylinder
(detailed view)
Electric heater
Fan
Junction box 1
Steam cylinder
Hose
Steam lance
Steam humidifier
(detailed view)
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