Cool.circ.pump Nc; Cooling Curve; Day/Night Changeover Cooling Curve - Viessmann Vitotronic SPS Service Instructions Manual

Heat source parameter group
"Coolant buff. cyl."

"Cool.circ.pump NC"

Parameter
Adv.rntime
Run-on time
Start delay
Anti-blocking prot.
Weekday
■
Time
■
Dur.
■
Set val. low t.maint
Frost prot.
Spread
Ctrllr P-factor
Ctrllr I-factor
Ctrllr D-factor

"Cooling curve"

Two cooling curves can be set here for charging the
coolant buffer cylinder subject to the outside tempera-
ture:

"Day/night changeover cooling curve"

Parameter
Operat.
Start day
End day
30
(cont.)
Factory Min.
setting
60 s 30 s
30 s 10 s
30 s 0 s
We Mo
09:00
2 min 1 min
5 °C 5 °C
3 °C 0 °C
5 K 3 K
5
0.001
0
Factory setting
07:00 h
22:00 h
Max. Description
120 s Advance runtime for circulation pump
60 s Run-on time for circulation pump
120 s Start delay for circulation pump
See page 63.
Su
10 min
30 °C Low end set value for circulation pump
10 °C Frost protection temperature for circulation pump
10 K Set value for spread with controlled circulation
pump
P-factor for controlling the circulation pump for
spread or low temperature maintenance
I-factor for controlling the circulation pump for
spread or low temperature maintenance
D-factor for controlling the circulation pump for
spread or low temperature maintenance
Day curve (for time period, see "Day/night change-
■
over cooling curve")
■ Night curve
See also page 63.
Description
Status (day (On) / night (Off))
Time of changeover from night curve to day
curve
Time of changeover from day curve to night
curve