Viessmann FB2B Installation And Service Instructions Manual page 10

Preparing for installation
Preparing for installation
Safety assembly to Water Fittings Regulations 1999
A Safety assembly to
Water Fittings Regulations 1999 (acces-
sory to connection sets for unfinished
walls)
B Safety valve
C Visible blow-off line outlet
D Shut-off valve
E Flow regulating valve (installation rec-
ommended)
F Pressure gauge connector
10
(cont.)
G Non-return valve
H Drain
K Cold water
L Drinking water filter
M Pressure reducer to Water Fittings Reg-
ulations 1999
N Non-return valve/pipe separator
O Cold water connection at connection set
(accessory)