Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 149

Coding 1
(cont.)
Coding in the factory setting
Multi-boiler control unit
36: 0 Electronic minimum system supply temperature
limit
set to 0 ˚C / 32 ˚F
37: 80 Electronic maximum system supply temperature
limit
set to 80 ˚C / 176 ˚F
Control type
3b: 1 Autonomous boiler parallel connection with supply
temperature sensor
Control strategy
3C: 2 Net calorific strategy 2
(see page 110)
General
40:125 Actuator operating time for isolation valve,
three-way mixing valve or mixing valve motor in
conjunction with permanent return temperature
control 125 seconds
Coding – Vitotronic 300-K, MW1S
Possible change
36: 1 Electronic minimum system supply temperature
to limit adjustable from 0 to 127 ˚C / 32 to 261 ˚F
36:127
37: 20 Electronic maximum system supply temperature
to limit adjustable from 20 to 127 ˚C / 68 to 261 ˚F
37:127
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)
40: 5 Operating time adjustable from 5 to 199 seconds
to
40:199
149