Download Viessmann VITOTRONIC 300-K Technical data
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Coding – Vitotronic 100, GC1 Coding 2 (cont.) Coding in the factory setting Possible change General (cont.) 2C: 5 2C: 0 No time delay 2C: 1 to 2C: 60 Time delay adjustable from 1 to 60 minutes Shunt pump control function only ON if boiler is enabled 2d: 1 Shunt pump control function ON, independent of whether boiler is enabled or not Actuator operating time for isolation valve, three-way mixing valve or mixing valve motor in conjunction with return temperature control 125 seconds 40: 5 Operating time adjustable from 5 to 199 seconds to 40:199 Maximum time delay of isolation valve 5 minutes Boiler 2d: 0 General 40:12 5 4A: 0 SensoraJA not installed 4A: 1 Sensor aJA installed (e.g. Therm-Control temperature sensor); will be recognised automatically 4b: 0 Sensor aJB not installed 4b: 1 Sensor aJB installed (e.g. temperature sensor T2); will be recognised automatically 4C: 2 Connection on plug sÖA1: Therm-Control switching contact 4C: 1 Do not adjust 4C: 3 DHW recirculation pump 4d: 2 Boiler circuit pump 4d: 3 Boiler circuit pump with isolation valve function Connection on plug sL: Shunt pump 5581 750 v1.3 4d: 1 145