Accessory Kit; Accessory Kit Connections For Heating Circuit With Mixing Valve; Closing The Control Unit; Closing The External Accessory Connection Box - Viessmann B2HB 45 Installation Instructions Manual

Vitodens 200-W B2HB 45, 57 Installation

Accessory Kit

Boiler
Control
KM Bus
Accessory

Closing the Control Unit

Extension Module EA1
Accessory kit connections for heating circuit with
mixing valve
The mixing valve controller kit can only be used with
wall-mounted gas-fired hot water heating boilers and
a weather-responsive control; it can be used as an
alternative for a Vitotronic control.
For details on coding and connection to the
control, refer to the Vitodens 200-W B2HB
Service Instructions.
For details on installation, refer to the accessory
kit Installation Instructions.
Closing the control cover
1. Install the cover onto the control board.
2. Flip the control board back into position.
3. Secure the locking tabs as shown.
Control Connections
53