Code 2 - Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual

Coding
Code 1
(cont.)
Coding
Coding in the delivered condition
Summer econ. M2
A5:5 With heating circuit
pump logic function
Min. flow temp. M2
C5:20 Electronic minimum
flow temperature limit
20 °C
Max. flow. temp. M2
C6:75 Electronic maximum
flow temperature limit
set to 75 °C
Slope M2
d3:14 Heating curve slope =
1.4
Level M2
d4:0 Heating curve level = 0

Code 2

Complete overview
Calling up code 2
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.
68
Possible change
A5:0 Without heating circuit
pump logic function
C5:1 Minimum limit adjustable
to from 1 to 75 °C
C5:75
C6:10 Maximum limit adjustable
to from 10 to 75 °C
C6:75
d3:2 Heating curve slope ad-
to justable from 0.2 to 3.5
d3:35 (see page 54)
d4: 13 Heating curve level ad-
to justable from 13 to 40
d4:40 (see page 54)
Press the following keys:
1. L + G simultaneously for
approx. 2 s.
2. d to confirm.
3. a/b for the required coding
address; the address
flashes.