Connection And Wiring Dia-Hbmu Heat Management Unit - Viessmann B1HF Installation And Service Instructions Manual

Connection and wiring diagram
HBMU heat management unit
F
D
B C
A
Fig. 61
A1 HBMU heat management unit
X... Electrical interfaces
A2 Power supply unit
Power supply
A fÖ
Vitotrol 100, type UTA
B
Vitotrol 100, type UTDB
C
Ignition unit/ionisation
D
98
E
gF
Outlet temperature sensor (combi boiler only)
F
Gas solenoid valve
dG
Fan motor
a-Ö
Fan motor control
E
lH 230 V connection accessories
Heating circuit pump
sÖ
No function
sA