17
Drain cock
18
Filling the heating circuit
24
DHW tank heat exchanger primary inlet
25
DHW tank heat exchanger primary outlet
26
DHW pump
27
Non-return valve
28
Domestic cold water inlet
29
Safety unit
7-bar safety valve
30
Safety unit
32
D.H.W. loop back pump
51
Thermostatic valve
54
End of the discharge pipe free and visible 2 to 4 cm above
the flow funnel
56
Circulation
57
Domestic hot water outlet
64
Circuit A: direct heating circuit (example: radiators)
4.5.1.
Safety unit (For France )
9
Isolating valve
28
Domestic cold water inlet
29
Pressure reducer
30
Safety unit
54
End of the discharge pipe free and visible 2 to 4 cm above
the flow funnel
n
Details of the safety unit
a
Cold water inlet with an integrated non-return valve
b
Connection to the DHW tank cold water inlet
c
Stop cock
d
7-bar safety valve
e
Drain opening
C000711-D
a
b
c
d
(54)
2 cm
e
28
30
9
29
BL 150...500
4. Installation
01/03/2011 - 300019417-001-C
14
Summary of Contents for BL 150
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