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EN/04.2021 © STULZ GmbH – all rights reserved
steam humidifier iNstruCtiONs
1 Drain/Info key
• press key shortly: opens and closes the drain valve (manual draining).
Note: the drain valve is automatically closed after 10 minutes.
• press key for a extended period of time: activating the info mode
11.1.3 Operation
11.1.3.1
Function of the display and operating elements on the control unit ECCM/S
Water supply
The water connection at the cold water mains must be equipped with a shut-off valve and must be carried out
according to the EU directive 98/83/EC and EN1717. It is recommended to install a filter to retain solid par
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ticles of pollution. The humidifier can be connected directly to the mains by a threaded tenon of 3/4“ when the
water pressure is between 1 and 10 bar. The pipe should have a diameter of at least 6 mm.
If the line pressure is more than 10 bar, the connection must be made via a pressure reducing valve (set to
4-6 bar). In each case it is to be ensured that the manufactured water pipe upstream of the connection to the
humidifier is flushed properly. We recommend only using copper pipes. The water supply temperature must
not exceed 40°C.
Water drain
The drain connection has an outside diameter of 30 mm. A plastic hose can be connected to the drain con
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nection which can be routed out of the unit by means of the openings in the unit provided for this purpose.
When creating the drain, attention is to be paid to provision for cleaning.
As the water drain is depressurized, we recommend routing the drain hose first into an open collector funnel
and then passing through a syphon to the drainage system to ensure free discharge.
The drainage pipe should be routed to the sewerage system with sufficient gradient (at least 5%) and should
be located approx. 30 cm below the humidifier. Attention is to be paid to temperature resistance when plastic
pipes are used. If copper pipe is used, it must be earthed. For the drainage pipe an inside diameter of at least
30 mm is required.
