Viessmann Vitodens 300 Service Instructions Manual page 71

Scanning operating conditions and sensors
Operating condition display
(subject to system equip-
ment level)
Burner OFF or ON
Int. pump OFF or ON
Int. output OFF or ON
Heating pump OFF or ON
Cylinder loading pump OFF
or ON
DHW circulation pump OFF
or ON
Central fault display OFF or
ON
Mixer, mixer open or mixer
close
Solar pump OFF or ON
Solar pump ...h
Various languages
Constant temperature control units
1. Press c.
2. Select the required operating con-
dition scan with a or b.
Operating condition display (sub-
ject to system equipment level)
0 01
1
15 °C/°F
3
65 °C/°F
5
50 °C/°F
5□
45 °C/°F
6
70 °C/°F
*1
Displayed in °F if the relevant code has been selected and with the fourth display digit.
Description
Output 20
Internal extension
External extension or extension kit for one heat-
ing circuit with mixer installed
Displayed only if the external extension is
installed
Displayed only if the external extension is
installed
Displayed only if the external extension is
installed
Display only if the extension kit for one heating
circuit with mixer is installed
Displayed only if Vitosolic is installed
Hours run
Each language can be selected as permanent
display language with d.
3. Press c.
Description
Equipment no. in case of multi-boiler
systems
Outside temperature sensor - actual
* 1
value (only if an outside temperature
sensor is connected)
Boiler temperature sensor - actual value
* 1
Cylinder temperature sensor - actual
* 1
value
Solar - actual DHW temperature
* 1
Actual value - collector sensor
*
1
Service scans
(cont.)
71