25
In the case of WSL142,
1
Ball valve
2
Pressure reducing valve
3
Check valve
4
Safety valve
5
Expansion vessel
6
Charging pipe
7
Circulation pump
8
Cold sanitary water
9
Cold circulation water
10
Warm sanitary water
1
3
4 5
1
7
3
1
1
8 9
6
10
2
1
Adjusting the safety valve [MPa (bar)]
0,6 (6,0)
System pressure [MPa (bar)]
0,3 (3,0)
0,35 (3,5)
0,4 (4,0)
Volume of the DHW [l]
Expansion vessel [l]*
200
5
8
12
* The actual size of the expansion vessel has to be defined by the installer/design engineer according to the extent of the system
the device will be installed in.
DHW tank drain
The drain valve at the bottom of the buffer tank is the most suitable in case the buffer tank for DHW has
to be emptied. Attach a hose to the drain valve and attach its end to the drain.
