Accessing The X3 Plug; Connecting The Low-Loss Header Sensor - Viessmann VITODENS 222-F Installation Instructions Manual
Floor mounted, gas-fired condensing storage combi boiler
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Also See for VITODENS 222-F:
- Installation and service instructions manual (172 pages) ,
- Installation and service instructions for contractors (156 pages) ,
- Technical manual (156 pages)
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Control Connections
Accessing the X3 Plug
Connecting the Low-loss Header Sensor
44
Vitodens 222-F, B2TA 19 and 35 Installation
1. Remove the control unit cover (see page 15).
2. Remove the X3 plug from the control board. Attach
sensors and reinsert the X3 plug. Refer to the
following sensor information.
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.
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