Coding; Code 1; Coding Code 1 - Viessmann VITODENS 343-F WS4A Installation And 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.
For heating systems with one heat-
ing circuit without mixer and one
heating circuit with mixer, initially
the possible coding addresses "A0"
to "d4" are scrolled for the heating
circuit without mixer A1 and then
those for the heating circuit with
mixer M2.
Press the following keys:
1. K + L simultaneously for
approx. 2 s.
Overview
Coding
Coding in the delivered condition
System design
00 :2 System design 1:
1 heating circuit without
mixer A1, with DHW
heating
66
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 approx. 1 s simulta-
neously, to terminate
coding 1.
Possible change
00 :4 System design 2, 5:
1 heating circuit with
mixer M2, with DHW
heating
00 :6 System design 3, 4:
1 heating circuit without
mixer A1; 1 heating cir-
cuit with mixer M2, with
DHW heating