Viessmann VITOCAL 250-A - 1396.1 Summer Saving Temperature Threshold, Heating;Cooling Cir- Cuit 2; 1397 Heating Limit: Economy Function, Outside Temperature, Heating; Cooling Circuit 3; 1397.0 Enable Summer Economy Control, Heating;Cooling Circuit 3; 1397.1 Summer Saving Temperature Threshold, Heating;Cooling Cir- Cuit 3

79
Value Meaning
0 Economy function inactive
1 Economy function active
1396.1 Summer saving temperature threshold, heating/cooling circuit 2
Heating limit for economy function, outside tempera-
ture, heating/cooling circuit 2:
The economy function can be activated so that the
rooms are not heated unnecessarily when outside tem-
peratures are mild (parameter 1396.0). The required
limit temperature (heating limit) is set for heating/cool-
ing circuit 2 in this parameter.
■
If the adjusted outside temperature (parame-
ter 919.0) exceeds the limit temperature by 2 K,
room heating is switched off. The heating circuit
pump is off.
■
If the adjusted outside temperature falls 2 K below
the limit temperature, room heating is switched on.
The heating circuit pump is running.
1397 Heating limit: Economy function, outside temperature, heating/cooling circuit 3
1397.0 Enable summer economy control, heating/cooling circuit 3
Heating limit, heating/cooling circuit 3:
The economy function can be activated so that the
rooms are not heated unnecessarily when outside tem-
peratures are mild. The required limit temperature
(heating limit) is set for heating/cooling circuit 3 with
parameter 1397.1.
■
If the adjusted outside temperature (parame-
ter 919.0) exceeds the limit temperature by 2 K,
room heating is switched off. The heating circuit
pump is off.
■
If the adjusted outside temperature falls 2 K below
the limit temperature, room heating is switched on.
The heating circuit pump is running.
Value Meaning
0 Economy function inactive
1 Economy function active
1397.1 Summer saving temperature threshold, heating/cooling circuit 3
Heating limit for economy function, outside tempera-
ture, heating/cooling circuit 3:
The economy function can be activated so that the
rooms are not heated unnecessarily when outside tem-
peratures are mild (parameter 1397.0). The required
limit temperature (heating limit) is set for heating/cool-
ing circuit 3 in this parameter.
■
If the adjusted outside temperature (parame-
ter 919.0) exceeds the limit temperature by 2 K,
room heating is switched off. The heating circuit
pump is off.
■
If the adjusted outside temperature falls 2 K below
the limit temperature, room heating is switched on.
The heating circuit pump is running.
1398 Heating limit: Economy function, outside temperature, heating/cooling circuit 4
1398.0 Enable summer economy control, heating/cooling circuit 4
Heating limit, heating/cooling circuit 4:
The economy function can be activated so that the
rooms are not heated unnecessarily when outside tem-
peratures are mild. The required limit temperature
(heating limit) is set for heating/cooling circuit 1 with
parameter 1398.1.
■
If the adjusted outside temperature (parame-
ter 919.0) exceeds the limit temperature by 2 K,
room heating is switched off. The heating circuit
pump is off.
■
If the adjusted outside temperature falls 2 K below
the limit temperature, room heating is switched on.
The heating circuit pump is running.
Parameter group for heating/cooling circuit
1396 Heating limit: Economy function, outside… (cont.)
6218234
Parameter