Hmu Heat Management Unit - Viessmann B1KE Combi Series Installation And Service Instructions Manual

Wiring Diagram
Fault Messages Fault Messages

HMU Heat Management Unit

94
(continued) (continued)
Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Legend
A1 HMU heat management unit
A5 HMI programming unit with communication module
(TCU 200)
A8 Power supply unit
! Outside temperature sensor
(for weather-compensated operation)
% Tank temperature sensor
Power supply
fÖ
jF PlusBus
CAN bus
lA
lH Input 120VAC (function configurable through K1 relay
on WP board)
aBH No function
P1 Output 120V, 60 Hz
P2 Output 120V, 60 Hz
A To wiring panel X10
B To the BCU burner control unit
To the BCU burner control unit
C
D PlusBus connection
E Wiring panel terminal X8/X9
F CanBus connection