Hmu Heat Management Unit - Viessmann VITODENS 222-F Installation And Service Instructions Manual

HMU heat management unit

Fig. 67
A1 HMU heat management unit
A2 HMI programming unit with RF module (wireless
module)
A3 Switching mode power supply
X... Electrical interfaces
Connection and wiring diagram
Outside temperature sensor
!
% Cylinder temperature sensor
Power supply
fÖ
PlusBus
jF
CAN bus
lA
105