Viessmann CIB User Manual

40
Coding in the delivered condition Possible change
Extended solar control functions
20:0 No extended control function ena-
bled
20:1 Auxiliary function for DHW heating
20:2 Differential temperature control 2.
20:3 Differential temperature control 2
and auxiliary function.
20:4 Differential temperature control 2 for
central heating backup.
20:5 Thermostat function
20:6 Thermostat function and auxiliary
function
20:7 Solar heating via external heat ex-
changer without additional tempera-
ture sensor
20:8 Solar heating via external heat ex-
changer with additional temperature
sensor
20:9 Solar heating of 2 DHW cylinders
Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"
For weather-compensated control units, select "Heat-
ing circuit..." (see page 36).
For constant temperature control units, select Group
"5" (see page 36).
Coding
Coding in the delivered condition Possible change
Priority DHW heating
A2:2 Cylinder priority applicable to heat-
ing circuit pump and mixer
A2:0 Without cylinder priority applicable to
heating circuit pump and mixer
A2:1 Cylinder priority only applicable to
mixer
A2:3
to
A2:15
Reduced priority applicable to mixer:
The heating circuit receives a re-
duced amount of energy.
Economy function outside temperature
A5:5 With heating circuit pump logic
function (economy mode): Heating
circuit pump "OFF" when the out-
side temperature (OT) is 1 K high-
er than the set room temperature
(RT
set
)
OT > RT
set
+ 1 K (only for weather-
compensated control units)
A5:0 Without heating circuit pump logic
function
A5:1
to
A5:15
With heating circuit pump logic func-
tion: Heating circuit pump "OFF"
(see the following table)
Parameter address A5:... With heating circuit pump logic function: Heating circuit pump "OFF"
1 OT > RT
set
+ 5 K
2 OT > RT
set
+ 4 K
3 OT > RT
set
+ 3 K
4 OT > RT
set
+ 2 K
5 OT > RT
set
+ 1 K
Code 1
Solar/Group "4" (cont.)
5839829
Codes

Viessmann CIB Specifications

General

Brand	Viessmann
Model	CIB
Category	Boiler
Language	English