Heating Circuit 1, Heating Circuit 2, Heating Circuit 3 - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Parameter level 1
DHW
(cont.)
"Set DHW temperature for reheating suppression"
Setting
40 °C
... °C
"Enable DHW circulation pump"
Setting
ON/OFF according to time program
... x 5 min per hour
Permanently ON

Heating circuit 1, heating circuit 2, heating circuit 3

Note
Parameter values in bold are factory settings.
"Heating limit: Economy function outside temperature"
Setting
5 see service instructions
Without
... see service instructions
Parameter With economy function outside tem-
A5:... perature: Heating circuit pump
"OFF"
1 OT RT
>
set
2 OT RT
>
set
3 OT RT
>
set
4 OT RT
>
set
5 OT RT
>
set
6 OT RT
>
set
7 OT RT
>
set
to
15 OT RT
>
set
58
67:40
67:0 to
67:95
73:0
73:1 to
73:6
73:7
A5:5
A5:0
A5:1 to
A5:15
+ 5 K
+ 4 K
+ 3 K
+ 2 K
+ 1 K
- 1 K
- 9 K
Explanations
For solar DHW heating: Set DHW temperature 40 °C.
Above the selected set temperature reheating is sup-
pressed.
Set DHW temperature adjustable from 0 to 95 °C
(limited by boiler-specific parameters)
Explanations
"ON" from once per hour for 5 min up to 6 times per
hour for "5 min" during the time program
Explanations
Economy function outside temperature: Heating circuit
pump "OFF" when the outside temperature (OT) is
1 K higher than the set room temperature (RT
OT RT + 1 K
>
set
No economy function outside temperature
With economy function outside temperature: Heating
circuit pump "OFF"; see the following table:
)
set