Viessmann Vitodens 300 Service Instructions Manual page 41

Code 1
(cont.)
Coding in Function mode
the as
delivered
condition
Address:
value
Summer econ. M2
A5:5 * 1 With heating circuit
pump logic function
Min. flow temp. A1
C5:20 Electronic limit of the
minimum flow tempera-
ture: 20 °C
Min. flow temp. M2
C5:20 Electronic limit of the
minimum flow tempera-
ture: 20 °C
Max. flow temp. A1
C6:75 * 1 Electronic maximum
flow temperature limit at
75 °C
Max. flow. temp. M2
C6:75 * 1 Electronic maximum
flow temperature limit at
75 °C
Slope A1
d3:14 * 1 Heating curve slope =
1.4
Slope M2
d3:14 * 1 Heating curve slope =
1.4
Level A1
d4:0 * 1 Heating curve level =
0
Level M2
d4:0 * 1 Heating curve level =
0
*1
Only for weather-compensated control units.
Coding Possible change
change
Address:
value
A5:0 Without heating circuit
pump logic function
C5:1 Minimum limit adjustable
to from 1 to 127 °C
C5:127
C5:1 Minimum limit adjustable
to from 1 to 127 °C
C5:127
C6:1 Maximum limit adjustable
to from 1 to 127 °C
C6:127
C6:1 Maximum limit adjustable
to from 1 to 127 °C
C6:127
d3:2 Heating curve slope
to adjustable from 0.2 to 3.5
d3:35 (see page 33)
d3:2 Heating curve slope
to adjustable from 0.2 to 3.3
d3:35 (see page 33)
d4:–13 Heating curve level
adjustable from –13 to 40
to
d4:40 (see page 33)
d4:–13 Heating curve level
adjustable from –13 to 40
to
d4:40 (see page 33)
Coding
41