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Installation Examples
System Layout 1
Vitodens 222-F, B2TB with a direct-connected heating circuit with integrated DHW production
Legend
A Vitodens 222-F B2TB boiler with
Vitotronic 200, HO1B outdoor reset control
B Outdoor temperature sensor !
C Vitotrol remote (optional)
D Heating circuit
E Boiler pump
20
F DHW circulating pump sA
G DHW storage tank
H Integral expansion tank
I DCW inlet
J DHW outlet
K Temperature and pressure relief valve outlet
L Pressure relief valve outlet
32
Vitodens 222-F, B2TB 19, 35, 68, 125 Installation
Installation of ...
radiator heating circuit (high-temp. circuit)
■
DHW production
■
... with the following flow conditions:
The flow rate of the heating circuit is less than the
maximum possible water flow rate of the Vitodens
222-F B2TB boiler (see page 30 for maximum water
flow rate of boiler).
The use of a low-loss header is strongly recommended
if the maximum water flow rate in the application
concerned exceeds the values shown in the applicable
table on page 30, or if the system flow rates are
unknown.
The low-loss header is available as accessory part.
See following pages for installation examples with a
low-loss header.
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