12
1)
Manual gas valve
2)
Stop valve
3)
Expansion vessel
4)
T&P safety valve
5)
Non return valve
6)
Circulation pump
7)
Drain valve
Figure 4 - Connection diagram
(unvented system)
8)
Pressure limiting valve
9)
Expansion valve
A )
Gas supply
B)
Hot water delivery
C)
Cold water inlet
D)
Hot water taps
E)
Return circulation
See Figure 4.
A.O. Smith water heaters are tested to
a maximum pressure of 12 bar and a
maximum working pressure of 8 bar.
AOS 0581
Содержание EQ 115 G
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