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Boiler Connections
Connections
Connecting the power supply
See Power/Pump
Module Installation
Instructions
Boiler venting
Fig. 10
Proper piping practice
Use moderate amount of dope
2 imperfect threads
Fig. 11 Pipe threads
Gas shut-off valve connection
Gas
connection
Fig. 12 Gas valve connection
16
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.
Leave 2 end threads bare
Refer to the Installation Instructions
shipped with the module or those
contained in this manual for wiring
details (see page 53).
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.
Support piping by proper suspension
method. Piping must not rest on or be
supported by boiler.
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 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.
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