Door open
1.
CIO-01 I/O module [A115]
2.
BCU control unit [A51]
3.
Cooling fan and heat exchanger [G115.x]
4.
Transformer. Two transformers can also be behind the assembly plates.
5.
Inlet manifold with stop and drain valves
6.
Outlet manifold with stop and drain valves
Operation principle and hardware description 29
2
1
3
5
4
6