Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 166

Coding – Vitotronic 300-K, MW1S
Coding 2
(cont.)
Coding in factory setting
Mixing valve circuit
C4: 1 System dynamics – mixing valve control
characteristics
System circuit/mixing valve circuit
C5: 20 Electronic minimum supply temperature limit 20 ˚C/
68 ˚F
C6: 75 Electronic maximum supply temperature limit
75 ˚C/ 167 ˚F
*
C8:31 With remote control unit and for heating circuit,
1
operation with room temperature feed-back must
be programmed:
Without limiting room influence
External heating program changeover via plug aVD:
d5: 0
Heating program changes to constant operation
with reduced room temperature
Systems/mixing valve circuit (cont.)
E1: 1
With remote control:
Normal day temperature is adjustable at remote
control unit from 10 to 30 ˚C / 50 to 86 ˚F
E2: 50 With remote control:
No display correction of actual room temperature
*1
Change coding – for system circuit A1 only for boilers without lower temperature limit – for mixing valve circuit only, if remote control
unit affects this heating circuit.
166
Possible change
C4: 0 Controller responds too quickly (cycles between
to open and close):
C4: 3 select a higher value.
Controller acts too slowly (temperature is not
maintained correctly):
select a lower value.
C5: 1 Minimum limit adjustable from 1 to 127 ˚C / 34
to 261 ˚F; only effective with room heating with
to
C5:127 normal temperature
C6: 10 Maximum temperature limit adjustable from 10
to to 127 ˚C / 50 to 261 ˚F
C6:127
C8: 1 Room influence limit adjustable from 1 to 30 K
to
C8: 30
d5: 1 Heating program changes to constant operation
with normal room temperature
Normal day temperature adjustable from 3 to
E1: 0 23 ˚C/
37 to 74 ˚F
from 17 to 37 ˚C / 63 to 99 ˚F
E1: 2
E2: 0 Display correction – 5 ˚C / – 9 ˚F
to to
E2: 49 display correction – 0.1 ˚C / – 0.18 ˚F
Display correction + 0.1 ˚C / +0.18 ˚F
E2: 51
to to
E2: 99 display correction + 4.9 ˚C / 8.8 ˚F