Heating Circuit 1, Heating Circuit 2, Heating Circuit 3/Group "5 - Viessmann Vitodens 200-W Installation And Service Instructions Manual

Solar/group "4"
Coding in the delivered condition
Extended solar control functions
20:0 No extended control func-
tion enabled.

Heating circuit 1, heating circuit 2, heating circuit 3/group "5"

Select "Heating circuit ..." for weather-compensated control units (see page 66).
Select "5" for constant temperature control units (see page 66).
(cont.)
Possible change
20:1
20:2
20:3
20:4
20:5
20:6
20:7
20:8
20:9
Code 1
Additional function for
DHW heating.
Differential temperature
control 2.
Differential temperature
control 2 and auxiliary func-
tion.
Differential temperature
control 2 for central heating
backup.
Thermostat function.
Thermostat function and
auxiliary function.
Solar heating via external
heat exchanger without ad-
ditional temperature sen-
sor.
Solar heating via external
heat exchanger with addi-
tional temperature sensor.
Solar heating of two DHW
cylinders.
73