Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 145

Coding 2
(cont.)
Coding in the factory setting
General (cont.)
2C: 5 Maximum time delay of isolation valve 5 minutes
Maximum time delay of isolation valve 5 minutes
Boiler
2d: 0 Shunt pump control function only ON if boiler
is enabled
General
40:12 Actuator operating time for isolation valve,
5 three-way mixing valve or mixing valve motor
in conjunction with return temperature control
125 seconds
4A: 0 SensoraJA not installed
Sensor aJB not installed
4b: 0
4C: 2 Connection on plug sÖA1:
Therm-Control switching contact
Connection on plug sL:
4d: 1
Shunt pump
Possible change
2C: 0 No time delay
2C: 1 Time delay adjustable
to from 1 to 60 minutes
2C: 60
2d: 1 Shunt pump control function ON, independent
of whether boiler is enabled or not
40: 5 Operating time adjustable from 5 to 199 seconds
to
40:199
Sensor aJA installed
4A: 1
(e.g. Therm-Control temperature sensor);
will be recognised automatically
Sensor aJB installed
4b: 1
(e.g. temperature sensor T2);
will be recognised automatically
4C: 1 Do not adjust
4C: 3 DHW recirculation pump
4d: 2 Boiler circuit pump
4d: 3 Boiler circuit pump with isolation valve function
Coding – Vitotronic 100, GC1
145