Coding; Code 1 - Viessmann Vitodens 333-F Service Instructions Manual

Coding

Code 1

Calling up code 1
Note
& On weather-compensated control
units, codes are displayed as plain
text.
& Codes that are irrelevant due to the
system equipment level or the set-
ting of other codes will not be dis-
played.
& Heating systems with one heating
circuit without mixer and one heat-
ing circuit with mixer:
Initially, the possible coding
addresses "A0" to "d4" for the heat-
ing circuit without mixer A1 are
scanned; then the coding addresses
for the heating circuit with mixer M2
are scanned.
Press the following keys:
1. K + L simultaneously for
approx. 2 s.
Overview
Coding
Coding in the delivered condition
System design
00:2 System version 1:
1 heating circuit without
mixer A1, with DHW
heating
46
2. a/b
for the required coding
address; the address
flashes.
3. d
to confirm.
4. a/b
for the selected value.
5. d
to confirm; the display
briefly shows "accepted"
(weather-compensated
control unit); the address
flashes again.
6. a/b
for the selection of further
addresses.
7. K + L press simultaneously for
approx. 1 s; code 1 is ter-
minated.
Possible change
00:4 System version 2, 5:
1 heating circuit with
mixer M2, with DHW
heating
00:6 System version 3, 4:
1 heating circuit without
mixer A1 and 1 heating
circuit with mixer M2, with
DHW heating