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Vitodens 222-F, B2TB 19, 35, 68, 125 Installation
External 0-10 Volt DC Signal Connection
1. Connect the external 0-10VDC signal to plug
0-10VDC located in the external connection
accessory box.
2. Ensure correct polarity.
3. See chart for maximum possible boiler water
temperature and required signal.
Control Connections
49
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