Hydraulic Diagram - STIEBEL ELTRON HSBC 300 cool (GB) (WPM) Operation And Installation Manual

iNSTallaTiON
Specification

17.2 Hydraulic diagram

15
14
16
11
13
9
11
12
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
24 | HSBC 300 cool
17
8
18
7 6 5 4 3
2
10
1
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
www.stiebel-eltron.com