Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 153

Coding 2
(cont.)
Coding in the factory setting
Multi-boiler control (cont.)
3b: 1 Autonomous boiler parallel connection with
supply temperature sensor
3C: 2 Net calorific strategy 2
(see page 110)
3d: 1 Output balance for gross calorific strategy and
net calorific strategy 1
3E: 0 Common supply pump ON/OFF subject to heat
demand
3F: 0 Without DHW tank priority for common supply
pump
General
40:12 Actuator operating time for isolation valve,
5 three-way mixing valve or mixing valve motor in
conjunction with permanent return temperature
control 125 seconds
Possible change
3b: 0 Autonomous boiler parallel connection
without supply temperature sensor
3b: 2 Autonomous boiler series connection
without supply temperature sensor
3b: 3 Autonomous boiler series connection with supply
temperature sensor
3b: 4 Sequential type of control with supply temperature
sensor
3C: 0 Gross calorific strategy
(see page 109)
3C: 1 Net calorific strategy 1
(see page 110)
3d: 0 No output statement
Please note:
Vitotronic 333, MW1S controls only in accordance
with net calorific strategy 2
3E: 1 Common supply pump OFF, if external disable
(plug aVD) is active
3F: 1 With DHW tank priority for common supply pump
40: 5 Operating time adjustable from 5 to 199 seconds
to
40:199
Coding – Vitotronic 300-K, MW1S
153