Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual page 115

HMU heat management unit
CAN bus
lA
Floating input 230 V, output 230 V
lH
Mains voltage output
aBH
P1 Output 230 V for:
Circulation pump for cylinder heating
■
■ Circulation pump for heating circuit without
mixer
(cont.)
P2 Output 230 V for:
A
B
Connection and wiring diagram
■ Circulation pump for heating circuit without
mixer
■ DHW circulation pump
To BCU burner control unit
To BCU burner control unit
115