Boiler Connections Preparing The Connections - Viessmann Vitodens 200 WB2 11-44 Installation Instructions Manual

Boiler Connections
Preparing the Connections
Connections overview
PRV
BD
10
This section constitutes an overview only! Refer to subsequent sections for
detailed information on individual piping connections.
}
*
GC
DS
BWS
Use an approved pipe sealant or teflon tape when
connecting the following installation fittings.
}
NPT
*
BWR
DR
Piping connections for Vitodens 200,
WB2 11-44 and 15-60
*These adapters are factory supplied.
Legend
BWR Boiler water return, 1¼" NPTF
BWS Boiler water supply, 1¼" NPTF
BD Boiler drain
DR Boiler heating return for
domestic hot water production,
1¼" NPTM
DS Boiler heating supply for
domestic hot water production,
1¼" NPTM
GC Gas connection, ¾" NPTM
PRV Pressure relif valve
NPT National Pipe Thread