Viessmann Vitodens 200-W Installation And Service Instructions For Contractors page 65

"Heating circuit ..."/Group 5
Coding in the delivered condition
b2:8 With remote control and for the
heating circuit, operation with room
temperature hook-up must be pro-
grammed: Room influence factor 8
(only for weather-compensated
control units; only change the code
for the heating circuit with mixer)
b5:0 With remote control: No room tem-
perature-dependent heating circuit
pump logic function (only for
weather-compensated control
units; only change the code for the
heating circuit with mixer)
Parameter address With heating circuit pump logic function:
b5:...
Heating circuit pump "OFF"
1 RT
2 RT
3 RT
4 RT
5 RT
6 RT
7 RT
8 RT
Coding in the delivered condition
C5:20 Electronic minimum flow tempera-
ture limit 20 °C (only for weather-
compensated control units)
C6:74 Electronic maximum flow tempera-
ture limit 74 °C (only for weather-
compensated control units)
d3:14 Heating curve slope = 1.4
d4:0 Heating curve level = 0
d5:0 The external operating program
changeover switches the operating
program to "Constant operation
with reduced room temperature" or
"Standby mode" (only for weather-
compensated control units)
d6:0 Heating circuit pump stays in con-
trol mode at signal "External block-
ing"
(cont.)
RT + 5 K
>
actual set
RT + 4 K
>
actual set
RT + 3 K
>
actual set
RT + 2 K
>
actual set
RT + 1 K
>
actual set
RT
>
actual set
RT 1 K
> –
actual set
RT 2 K
> –
actual set
Possible change
b2:0 Without room influence
b2:1 Room influence factor adjustable
to from 1 to 64. The higher the value,
b2:64 the greater the room influence.
b5:1 For heating circuit pump logic func-
to tion, see the following table:
b5:8
Heating circuit pump "ON"
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
Possible change
C5:1 Minimum limit adjustable from 1 to
to 127 °C (limited by boiler-specific pa-
C5:127 rameters)
C6:10 Maximum limit adjustable from 10 to
to 127 °C (limited by boiler-specific pa-
C6:127 rameters)
d3:2 Heating curve slope adjustable from
to 0.2 to 3.5 (see page 39)
d3:35
d4:–13 Heating curve level adjustable from
to 13 to 40 (see page 39)
–
d4:40
d5:1 The external operating program
changeover switches to "Constant
operation with standard room tem-
perature" (subject to coding address
3A, 3b and 3C)
d6:1 Heating circuit pump stops at signal
"External blocking" (subject to cod-
ing addresses 3A, 3b and 3C)
d6:2 Heating circuit pump starts at signal
"External blocking" (subject to cod-
ing addresses 3A, 3b and 3C)
Code 2
+ 4 K
+ 3 K
+ 2 K
+ 1 K
1 K
–
2 K
–
3 K
–
65