Viessmann E00T, Installation And Service Instructions For Contractors

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Connections to 230 V~ plugs
fÖ
Power supply from the power distribution board
lH
No function
aBH
Power supply for accessories
P1 Fuel cell circulation pump (System separation cir-
cuit pump)
P2 No function
Connections to extra low voltage (ELV) plugs
!
No function
% Cylinder temperature sensor, middle bottom
jF
PlusBus
lA
CAN bus
A
To the electricity meter
B
To the fuel cell (connected in delivered condition)
Information on connecting accessories
When connecting accessories observe the sep-
arate installation instructions provided with
them.
Routing connecting cables/leads
!
Please note
If connecting cables/leads come into contact
with hot components, they will be damaged.
When routing and securing cables/leads on site,
ensure that the maximum permissible tempera-
ture for these is not exceeded.
Checking the CAN bus terminator switch setting
1 91 91
ON
A
Fig. 21
Switch
A
at the HMU heat management unit must be
set to "I".
If the Vitovalor PA2 is integrated in a CAN bus system
and is located at the beginning or end of this system
(not in the middle), the terminator must be set to ON.
In individual cases check with the system integrator on
site.
Electrical connections for EM-MX mixer extension kit (ADIO electronics module)
Fitting the EM-MX mixer extension kit
Installation instructions "Mixer extension kit,
ADIO electronics module"
Installation sequence
HMU heat management unit electrical connections
(cont.)
5839343
Installation