Viessmann Vitodens 333 Service Instructions Manual page 68

Service scans
Scanning operating conditions and sensors
The following operating conditions can be scanned subject to the actual
equipment level:
Display screen Explanation
1 15 °C/°F Actual outside temperature
3 65 °C/°F Actual boiler water temperature
5 50 °C/°F Actual primary temperature
P Burner hours run (after maintenance, reset with e to "0")
263572 h
PPP Burner starts (after maintenance, reset with e to "0")
030529
PPPP Fuel consumption
030417
Weather compensated control units
Press the following keys:
1. a "1r" flashes.
2. d to select heating circuit
without mixer A1
or
3. a "2r" flashes.
The following operating conditions can be scanned subject to the actual
equipment level for heating circuits A1 and M2:
Display screen
User no.
Holiday program
Departure date
Return date
Outside temperature, ... °C
Boiler water temp., ... °C
Flow temperature, ... °C
Standard
room temperature, ... °C
Room temperature, ... °C
Ext. set room temp, ... °C
DHW temperature, ... °C
68
4. d to select heating circuit
with mixer M2.
5. c press.
6. a/b for the required operating
condition.
7. d terminate the scan.
Explanation
Encoded user no. in LON
If a holiday program has been entered
Date
Date
Actual value
Actual value
Actual value (only for mixer circuit M2)
Set value
Actual value
For external hook up
Actual DHW temperature
(cont.)