Viessmann B2HF - Connection and wiring diagram; HMU heat management unit

121
A
B
Fig. 70
A1 HMU heat management unit
A2 HMI programming unit with RF module (wireless
module)
A3 Switching mode power supply
X... Electrical interfaces
!
Outside temperature sensor (for weather-com-
pensated operation)
%
Cylinder temperature sensor (gas condensing
system boiler)
fÖ
Power supply
Connection and wiring diagram
HMU heat management unit
5593201
Appendix