External 0-10 Volt Signal Connection - Viessmann B2HB 45 Installation Instructions Manual

B2hb series vitodens 200-w wall-mounted, gas-fired condensing boiler
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Control Connections

External 0-10 Volt Signal Connection

Extension Module EA1
50
Vitodens 200-W B2HB 45, 57 Installation
1. Connect the external 0-10V signal to plug 0-10V
located in the extension module EA1.
2. Ensure correct polarity.
3. See chart for maximum possible boiler water
temperature and required signal.
Example: Voltage to temperature setpoint
8VDC = 176ºF (80ºC)

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B2hb 57

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