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Installation Examples
System Layout 6
Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank and
– one direct-connected heating circuit
PRV
TPV
Y
I
Please note!
The use of a low-loss header is
recommended if the system water flow rate
is less than 1.3 GPM / 300 ltr/h or more
than 15.4 GPM / 3500 ltr/h.
The low-loss header is available as
accessory part.
See page 29 in this manual for details on
the low-loss header.
38
AV
Model No.
Vitodens 200,
WB2 11-44
WB2 15-60
AV
PRV Pressure relief valve
TPV Temperature and pressure relief
I
Max. flow rate
IMPORTANT
(GPM/ltr/h)
DHW circulating pump
15.4/3500
the Vitodens 200 boiler (as illustrated).
15.4/3500
Air vent
valve
Vitodens 200 gas-fired condensing
boiler with Comfortrol programming
unit for weather-responsive
operation
Outdoor temperature sensor of
control unit for weather-responsive
operation
Remote control for Comfortrol
programming unit
Heating circuit
Heating circuit pump (field supplied)
DHW circulating pump (field supplied)
DHW storage tank
DHW tank temperature sensor
Expansion tank
must pump into
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