Calling Up The Parameter Group - Viessmann VITOTRONIC 200 Service Instructions Manual

Parameter group Communication

Calling up the parameter group

1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Coding level 1"
7707 Number of heat pump in cascade
Number of the lag heat pump in a heat pump cascade
via LON.
Numbers within a LON must be unique.
If no runtime compensation is set, this number can be
used to determine the start sequence for the lag heat
pumps.
7710 Enable LON communication module
Value Meaning
"0" LON communication module is not enabled.
"1" LON communication module is enabled.
7777 LON subscriber number
Number ranges in the LON addresses for the heat
pump control unit.
The addresses of LON subscribers consist of 3 differ-
ent parts, as in a telephone network (country code,
area code, subscriber number). The first part is perma-
nently set to the same value for all Viessmann applian-
ces. The other parts consist of the LON system num-
ber and LON subscriber number.
7779 LON fault manager
The heat pump control unit, which acts as fault man-
ager, displays all the system fault messages. Further-
more, it monitors all subscribers for failure and gener-
ates central fault messages.
Note
Only one control unit within a system may be config-
ured as the fault manager. Exception: The Vitocom
communication interface may be an additional fault
manager.
7798 LON system number
Number ranges in the LON addresses.
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3. "Communication"
4. Select parameter.
With runtime compensation, the number specified here
has no effect on the start sequence. In this case, it is
always the lag heat pump with the lowest runtime that
is started first.
Setting is the lag heat pump number.
Note
Observe the following to prevent communication con-
flicts:
Each LON subscriber number must only be assigned
■
once within a individual system.
■ Do not set LON subscriber number 99 for the heat
pump control unit. This is the LON subscriber num-
ber of the Vitocom communication interface.
Setting is LON subscriber number.
Value Meaning
"0" Heat pump control unit is not fault manager.
"1" Heat pump control unit is fault manager.