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iNSTallaTiON
Specification
Other dimensions and connections
i18
h16
d47
d47
h16
Sensor DHW
Diameter
i18
Sacrificial anode
Female thread
Torque
d47
Drain & fill valve
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HSBB 180
HSBB 180
Plus (GB)
S Plus (GB)
mm
9.5
9.5
G 1 1/4
G 1 1/4
Nm
120
120
16.2 Hydraulic diagram
15
16
11
14
13
12
11
1 Discharge below fixed grate
2 Cold water supply
3 Shut-off valve
4 Line strainer
5 Pressure reducing valve
6 Balanced pressure; cold water outlet
7 Check valve
8 Safety assembly
9 Tundish
10 Metal discharge pipe (D2) from tundish, with continuous fall
11 Equipotential bond
12 Drain valve
13 Cylinder
14 DHW outlet
15 T&P valve
16 Metal discharge pipe (D1) from T&P valve to tundish
17 Expansion vessel
18 Expansion relief valve
Material losses
!
The tundish should be installed away from electrical de-
vices.
Note
If secondary return circuits are used then an additional
expansion vessel may be required.
Data table
Minimum size of discharge pipe D1
Minimum size of discharge pipe D2 from tundish
Maximum permissible pressure drop, expressed as
a length of straight pipe (i.e. no elbows or bends)
Pressure drop of each elbow or bend
Connection dimensions
Safety assembly connection
Expansion valve end connection
Expansion vessel connection, male, BSP
Tundish inlet connection
Tundish outlet connection
HSBB 180 Plus (GB)|HSBB 180 S Plus (GB)|
17
18
9
8
7
6
5
4
3 2 1
10
mm
mm
22
28
m
9
18
m
0.8
1.0
mm
mm
mm
15
35
27
1.4
22
15
G 1 A
22
G 1
17
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