Viessmann VITODENS 200-W Technical Data Manual page 25

Vitodens 200-W, B2HB 19 to 35 Technical Data
Accessories for Vitodens 200-W
LON Communication Module
Electronic PCB for data exchange with the Vitotronic
200-H, Vitocom 200 and for connecting to a higher level
building management system.
Neutralization Unit for Single-Boiler Applications
with neutralizing granulate
for models B2HB 19, 26, 35
Neutralization Pellets
for models B2HB 19, 26, 35
2 x 1.3 kg for refill or replacement purposes
Fuel Conversion Label Kit (NG>LPG)
(included in boiler technical literature set)
The Vitodens 200-W, B2HB boiler comes factory set
for operation with natural gas. All B2HB models can be
field converted to operate with liquid propane gas (as
well as back to natural gas as required). The kit includes
instructions and labels for field conversion.
Low-Loss Header
When used in conjunction with the Vitodens 200-W
boiler, the low-loss header acts as hydraulic break,
decoupling boiler and system circuits from each other.
It is recommended to use the low-loss header in
applications in which the total system flow rate exceeds
the maximum (or minimum) boiler flow rate.
For maximum boiler flow rates, starting on page 9 of
this manual.
Viessmann strongly recommends the use of a low-loss
header in cases where the system head and flow rates
are unknown.
The temperature sensor connection [TS] typically located
at the top of the low-loss header ensures low return
temperatures to the Vitodens 200-W boiler at all times,
increasing operational efficiency.
In addition, the low-loss header helps eliminate air and
debris [D] from the heating system.
See illustrations for design and principle of operation on
page 26.
The low-loss header is available in various sizes
(see page 26). Select the size based on the maximum
system flow rate of your application.
Accessories
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