Viessmann Vitodens 100-W Technical Data Manual page 7

Vitodens 100-W, WB1B 26/35
with piping connections
14" /
355mm
7
2 / " / 73mm
8
6" /
152mm
Fig. 2
PRV
BD
BWS
Fig. 3
15¾" /
400mm
VC
CAI CAI
PG
7
4 / " /
8
123mm
7
4 / " /
8
123mm
GC BF
BWR
5
2 / "/
8
68 mm
Vitodens 100-W
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)
7