45
EN
②
Manual switching of the volume flow stages over an external two-pole button:
L1 = Volume flow stage more; L2 = Volume flow stage less
Note: DIP switch 2 must be in position OFF for that.
2-toggle switch 2-pole
Jumper
Manual switching of the volume flow stages over an external single-pole button on L1 and
simultaneous operation of one or more air-extraction fans over coupling on L2 for the com-
pensation of the additional vacuum pressure arising from the exhaust-air ventilators.
L1: 1x key: Volume flow stage more; 2x key: Volume flow stage less
Note: DIP switch 2 must be in position ON for that.
Silvento ec Silvento ec Silvento ec
Switch
Two-pole
Key
One-pole
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