General - Viessmann Vitocrossal 300 Service Manual

Vitocrossal 300 CU3A 26 to 57 Service

General

Calling up coding level 2
Note: At coding level 2, all codes are accessible, including
the codes at coding level 1.
Codes that have not been assigned due to the
heating system equipment level or the setting of
other codes are not displayed.
Heating systems with one heating circuit without
mixing valve and one or two heating circuits with
mixing valve:
The heating circuit without mixing valve is
designated "Heating circuit 1" and the heating
circuits with mixing valve as "Heating circuit 2"
or "Heating circuit 3".
Coding in the factory setting
00:1 System type 1:
One heating circuit without mixing
valve A1 (heating circuit 1), without
DHW heating
Value address System type Description
00: ...
1 1
2 1
3 2
4 2
5 2
6 2
7 3
8 3
9 3
10 3
Possible change
00:2
to
00:10
One heating circuit without mixing valve (heating circuit 1), without DHW heating.
One heating circuit without mixing valve (heating circuit 1), with DHW heating, (code
is adjusted automatically).
One heating circuit with mixing valve (heating circuit 2), without DHW heating.
One heating circuit with mixing valve (heating circuit 2) with DHW heating.
One heating circuit without mixing valve (heating circuit 1) and one heating circuit
with mixing valve (heating circuit 2), without DHW heating (code is adjusted
automatically).
One heating circuit without mixing valve (heating circuit 1) and one heating
circuit with mixing valve (heating circuit 3), with DHW heating (code is adjusted
automatically).
One heating circuit with mixing valve (heating circuit 2) and one heating circuit with
mixing valve (heating circuit 3), without DHW heating.
One heating circuit with mixing valve (heating circuit 2) and one heating circuit with
mixing valve (heating circuit 3), with DHW heating.
One heating circuit without mixing valve (heating circuit 1), one heating circuit with
mixing valve (heating circuit 2) and one heating circuit with mixing valve (heating
circuit 3), without DHW heating (code is adjusted automatically).
One heating circuit without mixing valve (heating circuit 1), one heating circuit with
mixing valve (heating circuit 2) and one heating circuit with mixing valve (heating
circuit 3), with DHW heating (code is adjusted automatically).
If the heating circuits were given individual designations,
the selected designation and "HC1", "HC2" or "HC3"
appear instead:
1. Press OK and simultaneously for approximately
4 seconds
2. Press OK and simultaneously for approximately
4 seconds
3. "Coding level 2"
4. Select group of required coding address:
- "General"
- "Boiler"
- "DHW"
- "Heating circuit 1/2/3"
- "All codes or solar"
In this group, all coding addresses (except the
coding addresses from the "Solar" group) are
displayed in ascending order.
5. Select coding address.
6. Select value according to the following tables and
confirm with "OK".
7. If you want to reset all codes to their factory setting:
Select "Standard setting" in "Coding level 2".
Note: This also resets codes at coding level 1.
For system type, see the following
table:
Coding 2
57