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

Preparing the Connections
Dimensions overview with piping connections
14" /
355mm
7
2 / " / 73mm
8
6" /
152mm
Fig. 6
PRV
BD
Fig. 7
(continued)
15¾" /
400mm
VC
CAI CAI
PG
7
4 / " /
8
123mm
7
4 / " /
8
123mm
GC
BWS
BWR
5
2 / "
/
8
68 mm
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 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
PG Pressure gage
VC Venting connection
CAI Combustion air inlet connection
(optional)
15