Preparing The Connections; Connections Overview - Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual

Preparing the Connections

Connections overview

CAI
PRV
BD
BWS
Fig. 4
Use an approved pipe sealant or teflon tape when connecting the following
installation fittings.
VC
CAI
NPT
NPT
NPT
GC
BWR
BF
Boiler Connections
This section is an overview only!
Refer to subsequent sections for
detailed information on individual
piping connections.
Piping connections for Vitodens
100-W, WB1B 26 and 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)
13