Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual page 11

Preparing for boiler installation
Safety assembly in accordance with DIN 1988 and EN 806 to the
cold water connection
A Safety assembly (accessory for the
connection sets on unfinished
walls)
B Safety valve
C Visible discharge pipe outlet point
D Shut-off valve
E Flow regulating valve (installation
recommended)
F Pressure gauge connection
Preparing for installation
(cont.)
G Non-return valve
H Drain
K Cold water
L Drinking water filter
M Pressure reducer to DIN 1988-2,
Dec. 1988 issue
N Non-return valve/pipe separator
O Cold water connection at connec-
tion set (accessories)
11