Viessmann Vitodens 242-F Installation And Service Instructions Manual page 20

Preparing for installation
Installation preparations
Safety assembly to DIN 1988 and EN 806 on the cold water connection
A
B
D E F GH D
C
O
Fig. 12
Safety assembly (accessory for connection sets for
A
unfinished walls)
Safety valve
B
Visible discharge pipe outlet point
C
Shut-off valve
D
Flow regulating valve (installation recommended)
E
Pressure gauge connection
F
Non-return valve
G
20
(cont.)
D H L
K
H
K
L
M
N
O
M D N K
Drain
Cold water
Drinking water filter
Pressure reducer to DIN 1988-2, Dec. 1988 issue
Non-return valve/pipe separator
Cold water connection at connection set (accesso-
ries)