169
5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
“Heating Circuit ...” Group
(continued)
Coding Level 2
Coding in the factory set condition
Possible change
“Mixing valve runtime”
c3:125
Only for heating circuits with mixing
valve:
Mixing valve runtime 125 sec.
c3:10
to
c3:255
Adjustable from 10 sec. to 255 sec.
“System dynamics mixing valve”
c4:1
System dynamics:
Mixing valve control characteristics.
c4:0
to
c4:3
Controller responds too quickly (cycles
between “Open” and “Closed”):
Select a lower value.
Controller responds too slowly
(temperature is not held sufficiently):
select a higher value.
“Minimum supply temperature limit”
c5:20
Electronic minimum supply temperature
limit 68°F (20°C) (only when operating
with standard room temperature).
c5:1
to
c5:127
Adjustable from 34°F to 261°F
(1°C to 127°C)
(limited by boiler specific coding).
“Maximum supply temperature limit”
c6:75
Electronic maximum supply temperature
limit set to 167°F (75°C).
c6:10
to
c6:127
Adjustable from 50°F to 261°F
(10°C to 127°C)
(limited by boiler specific coding).
“Room influence limit”
c8:31
With remote control and for the heating
circuit, operation with room temperature
hook-up must be programmed:
No room influence limit
c8:1
to
c8:30
Adjustable from 2°F to 54°F
(1 K to 30 K).
“External operating program changeover”
d5:0
With external operating program
changeover (observe setting of coding
“5d”, “5e”, “5f” and “91” in the
“General” group). Changeover “Constant
central heating with reduced room
temperature” or “Standby mode”
(subject to set reduced room temperature).
d5:1
Changeover to “Constant operation
with standard room temperature”.
“EA1 extension: Operating program changeover”
d8:0
No operating program changeover.
d8:1
Operating program changeover via input
DE1.
d8:2
Operating program changeover via input
DE2.
d8:3
Operating program changeover via input
DE3.
“Day temperature target”
e1:1
Do not adjust!
“Display correction of the actual room temperature”
e2:50
With remote control:
No display correction of the actual room
temperature.
e2:0
to
e2:49
Display correction –9°F (–5 K)
to
Display correction –0.2°F (–0.1 K)
e2:51
to
e2:99
Display corr0.2°F (+0.1 K)
to
Display corr9°F (+4.9 K)
