Dimensions Overview With Connections; Connection - Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual

Preparing the Connections
Dimensions overview with piping connections
Fig. 6 Fig. 6
PRV
BD
Fig. 7
(continued)
VC
CAI
CAI
PG
GC
BWS
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
PG Pressure gage
VC Venting connection
CAI Combustion air inlet
connection (optional)
15