Technical data

Boiler Connections
16
Connections
Connecting the power supply
See Power/Pump
Module Installation
Instructions
The Vitodens 200-W boiler is shipped
with a Power/Pump module, which
requires a 120 VAC power supply
from a wall receptacle. The module
contains a 120/230 VAC step-up
transformer for 230 VAC operation.
Refer to the Installation Instructions
shipped with the module or those
contained in this manual for wiring
details (see page 52).
Boiler venting
The Vitodens 200-W WB2B boiler
comes with a pre-installed vent pipe
adaptor (as shown in fig. 10).
Run venting system, single-wall or
coaxial, through the side wall or the
roof, taking the shortest possible route
and at a rising angle (min. 3º).
See Installation Instructions
WB2B Venting System for
details.
Proper piping practice
Support piping by proper suspension
method. Piping must not rest on or be
supported by boiler.
Gas shut-off valve connection
1.Make gas connections in accordance
with codes CAN/CSA B149.1 and .2
or National Fuel Gas Code ANSI
Z223.1/NFPA 54, as well as local
codes.
2. Connect the extension and the gas
shutoff valve to the boiler gas
connection.
3. Once connected close gas shutoff
valve on boiler.
See following page for details on gas
connection and piping.
5369 297 v1.6
Fig. 10
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Leave 2 end threads bare
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Fig. 11 Pipe threads
Fig. 12 Gas valve connection
Gas
connection