Viessmann B2TF - Electrical Connections; Opening the HMU Wiring Chamber

20
Opening the HMU wiring chamber
!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects, such as heating or water pipes to dis-
charge static loads.
3.
1.
2x
2.
Fig. 10
Note
For further information on the connections, see the fol-
lowing chapters.
A B
C
6 5 4 3 2 1
6 5 4 3 2 1
1~
M
1~
M
5
40
156 156
P1
96
74 1 91 915P2
Fig. 11
Connections to 230 V~ plugs
fÖ
Power supply
lH
230 V input, floating
230 V output
aBH
Switched power outlet
P1 Cylinder loading pump (connected in the deliv-
ered condition)
Installation sequence
Electrical connections
6151778
Installation