INSTALLATION
16
4.7.
Connection diagrams
4.7.1.
Open expansion vessel connection
Legend
1-9.
Separation valves
10,11.
Radiator valves
12.
Radiators
13-15.
Safety valves
16.
Filling valve
17.
Drainage valve
18.
Cold water valve
19-24.
One-way valves
B
Hot water boiler
VED
Open expansion vessel
PCI
Central heating pump
PRC
Recirculation pump
RP
Pressure reducer
F
Filter
A
Air relief valve
FD
Water softener