Grant Vortex Boilerhouse Combi - 7 Sealed System

Figure 7-2: Correspondence table n ° / parts in Figure 7.1
Key
1 Expansion vessel
2 Manometer
3 Safety valve 3b
4 Distributor
5 Backfl ow preventer (here fl exible + double check valve)
6 Double check valve
7 Automatic air vent
8 Thermostatic radiator valve
9 Differential valve
10 Installation drain
Static head of system
M
N
O
PQ R
ST
U
V
Figure 7-1: Heating system with closed expansion vessel
7 SEALED SYSTEM
Heating circuits With sealed expansion vessel Page 23