Accessing The X3 Plug; Connecting The Low-Loss Header Sensor - Viessmann Vitodens 200-W B2HA 80 Installation Instructions Manual
Wall-mounted, gas-fired condensing boiler
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Also See for Vitodens 200-W B2HA 80:
- Installation instructions manual (60 pages) ,
- Service instructions manual (100 pages)
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Vitodens 200-W B2HA 80 to 100, 285 to 352 Installation
Accessing the X3 Plug
Connecting the Low-loss Header Sensor
1. Remove the control unit cover (see page 23).
2. Remove the X3 plug from the control board. Install
the required sensors as per installation instructions.
3. Reinstall the control cover.
1. Connect the low-loss header sensor (if used) to
terminals X3.4/X3.5 on the boiler control board.
Control Connections
49
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