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5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Coding Level 1
“Heating Circuit ...” Group
(continued)
Coding address
b5:...
With heating circuit pump logic function:
Heating circ pump OFF
Heating circuit pump on
1
RTactual > RTset +9°F (+ 5 K)
RTactual < RTset +7°F (+ 4 K)
2
RTactual > RTset +7°F (+ 4 K)
RTactual < RTset +5°F (+ 3 K)
3
RTactual > RTset +5°F (+ 3 K)
RTactual < RTset +4°F (+ 2 K)
4
RTactual > RTset +4°F (+ 2 K)
RTactual < RTset +2°F (+ 1 K)
5
RTactual > RTset +2°F (+ 1 K)
RTactual < RTset
6
RTactual > RTset
RTactual < RTset –2°F (– 1 K)
7
RTactual > RTset –2°F (– 1 K)
RTactual < RTset –4°F (– 2 K)
8
RTactual > RTset –4°F (– 2 K)
RTactual < RTset –5°F (– 3 K)
Coding in the factory set condition
Possible change
“Minimum supply temperature limit”
c5:20
Electronic supply temperature minimum
limit 68°F (20°C) (only for operation
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).
“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.
“Slab curing”
f1:0
Slab curing function not active.
Do not adjust!
