Viessmann Vitotronic 200 Installation And Service Instructions For Contractors page 54

Parameter
General
(cont.)
22 Reset time, low loss header/buffer cylinder
Display
600 s
... s
23 Controller delay low loss header/buffer cylinder
Display
10 min
... min
24 Pump function with low loss header
Display
Boiler circuit pump always runs when there
is a demand. Burner is controlled via boiler
water temperature sensor. No flow temper-
ature correction.
Boiler circuit pump only runs when burner
is ON. Burner is controlled via buffer tem-
perature sensor. Flow temperature correc-
tion.
Boiler circuit pump only runs when burner
is ON. Burner is controlled via buffer tem-
perature sensor. No flow temperature cor-
rection.
2B Show energy consumption
Display
No
Yes
30 Extension AM1
Display
Without
With
54
Value Explanations
22:60 Controller integral time for low loss header in s.
Delivered condition specified by the coding card. The
22:1 to
greater the reset time, the more accurate but slower
22:199
the controller.
Adjustable from 10 to 1990 s
1 step ≙ 10 s
Note
Displayed only if parameter "20:1" has been set.
Value Explanations
23:10 Controller delay low loss header in minutes, time be-
tween burner start and controller start.
23:1
Adjustable from 1 to 199 min
to
23:199
Note
Displayed only if parameter "20:1" has been set.
!
Value Explanations
24:0
24:1 Displayed only if parameter "20:1" has been set.
24:2
!
Value Explanations
2B:0
2B:1
Value Explanations
30:0
30:1 Recognised automatically.