System Layout 2 - Viessmann VITODENS 222-F Installation Instructions Manual

Vitodens 222-F, B2TA 19 and 35 Installation

System Layout 2

Vitodens 222-F, B2TA with one heating circuit, low-loss header and integrated DHW production
Legend
Vitodens 222-F B2TA boiler with
A
Vitotronic 200, HO1B outdoor reset
control
Outdoor temperature sensor !
B
C Vitotrol remote (optional)
D Heating circuit
Boiler pump
E
20
F DHW circulating pump sA
DHW storage tank
G
Integral expansion tank
H
I Temperature and pressure relief valve outlet
Low-loss header
J
K Pressure relief valve outlet
L Viessmann temperature sensor for
low-loss header %
M Heating circuit pump
DCW inlet
N
DHW outlet
O
28/20
Installation of ...
radiator heating circuit (high-temp. circuit)
■
DHW production
■
... with the following flow conditions:
The flow rate of the heating circuit is greater than the
maximum possible water flow rate of the Vitodens
222-F B2TA boiler (see page 28 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 on page 29,
or if the system flow rates are unknown.
The low-loss header is available as accessory part.
Installation Examples
33