Connections Overview - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Preparing the Connections

Connections overview

CAI
PRV
BD
BWS
Fig. 4
VC
CAI
NPT
NPT
NPT
GC
BF
BWR
Use an approved pipe sealant or teflon tape when
connecting the following installation fittings.
This section is an overview only! Refer
to subsequent sections for detailed
information on individual piping
connections.
Piping connections for Vitodens
100-W, WB1B 10-26 and 10-35
(factory supplied)
Legend
BWR Boiler water return, ¾"
BWS Boiler water supply, ¾"
BD Boiler drain
BF Boiler fill
GC Gas connection, ¾" NPTM
(male thread)
PRV Pressure relief valve
NPT National Pipe Thread
VC Vent connection
CAI Combustion air inlet connection
(optional)
Boiler Connections
13