Viessmann B2HA 80 - Preparing the Connections

Vitodens 200-W B2HA 80 to 100, 285 to 352 Installation
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Preparing the Connections
Boiler Connections
Use an approved pipe sealant or teflon tape when
connecting the following installation fittings.
This section constitutes an overview only! Refer to
subsequent sections for detailed information on individual
piping connections.
Legend
DR Boiler heating return for domestic hot water production
DS Boiler heating supply for domestic hot water production
BD Boiler Drain
BF Boiler Fill
BR Boiler Return
BS Boiler Supply
GC Gas Connection
PRV Pressure Relief Valve
*1 See page 43 or alternate DHW connection.
*2 Discard when using the multi-boiler distribution
manifold
*1 DHW
Connections
(Field Supplied)