Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 143

Coding 2
(cont.)
Coding in the factory setting
Burner (two stage/mod.)
*1
16: Burner offset in ˚C / ˚F
temporary reduction of set boiler water temperature
after burner start
*1
1A: Start-up optimization in minutes
Burner
1b: 60 Time from burner ignition to control unit start
60 seconds
1C:120 Start-up delay
120 seconds
(only adjustable if no operating signal B4 is available
at burner plugfA)
Boiler
1F: 0 Flue gas temperature is not monitored for burner
maintenance indication
Boiler/burner
21: 0 No run hours interval for burner maintenance
23: 0 No time interval for burner maintenance
*1
The factory setting is defaulted by the boiler coding card.
Possible change
16: 0 Offset during start-up optimization adjustable
to from 0 to 15 ˚C / 0 to 27 ˚F
16: 15
1A: 0 Duration of start-up optimisation adjustable
to from 0 to 60 minutes
1A: 60
1b: 0 Control delay adjustable
to from 0 to 199 seconds
1b:199
1C: 1 Start-up delay adjustable from 1 to199 seconds
to
1C:199
With flue gas temperature sensor:
1F: 1 Maintenance indication will be issued if flue
to gas temperature exceeded; adjustable
1F: 50 from 10 to 500 ˚C / 50 932 ˚F
1 setting step = 10 ˚C / 18 ˚F
21: 1 Number of run hours by burner before maintenance
to is adjustable from 100 to 10000 hours;
21:100 1 setting step = 100 hours
23: 1 Time interval adjustable from 1 to 24 months
to
23: 24
Coding – Vitotronic 100, GC1
143