30 English
Para-
meter
Parameter name Parameter description Setup range Default
value
S2.9 MIXING VALVE I –
CONSTANT
The setup indicates how intensely the controller corrects
the position of the mixing valve in constant deviation of
the stand-pipe. A lower value means shorter movements
and a higher value larger correction positions of the
mixing valve.
0.4 ÷ 2.5
1
S2.10 MIXING VALVE D –
CONSTANT
Set up the intensity of the change of the stand-pipe
temperature on sealing the control overshoot of the mixing
valve. Greater value means better overshoot sealing of
the mixing valve.
0.4 ÷ 2.5
1
S2.11 MINIMUM STAND-
PIPE TEMPERATURE
FOR COOLING
Set up the minimum stand-pipe temperature if cooling is
activated.
CAUTION! Too low temperature can cause misting of
heating devices and pipelines.
10 ÷ 20°C
15
S2.12 HEATING-OFF TEM-
PERATURE SHIFT
With the setup, the minimum required stand-pipe tempera-
ture can be corrected in order to activate the mixing valve
operation. A negative value will activate the control at a
lower calculated stand-pipe temperature and a positive
value at a higher calculated stand-pipe temperature.
-10 ÷ 10°C
0
S2.13 LIMITATION OF
TEMPERATURE
DIFFERENCE BE-
TWEEN STAND AND
RETURN PIPE
Set up the maximum permissible difference between the
stand and return pipe. This way, the maximum power of
the heating circuit is limited.
3 ÷ 30°C
10
S2.14 CONSTANT STAND-
PIPE TEMPERATURE
Set up the operation of the stand-pipe with a constant
temperature. The range of the constant temperature setup
is 10 ÷ 140°C.
CAUTION! This function will switch off the control depend-
ing on the outdoor temperature.
0– OF
1– ON
0
S2.15 CIRCULATION PUMP
SWITCH-OFF DELAY
(MINUTES)
Set up the delay time of the circulation pump switch-off if
there is no need for heating.
0 ÷ 10min
3
S2.16 COOLING OPERA-
TION MODE
Set up the cooling operation mode:
1 – AUTO, room and outdoor temperature are considered
2 – only the outdoor temperature is considered
3 – only the room temperature is considered
4 – the stand-pipe calculation is constant in the daily time
interval (setup of parameter S2.11)
1– AUTO
2– OUTDOOR
TEMP.
3– ROOM TEMP.
4– CONSTANT
TEMP.
1
S2.17 INFLUENCE OF
ROOM TEMPERA-
TURE DEVIATION
FOR COOLING
Set up the increase value of the room temperature devi-
ation for cooling. LA low value means a lower inuence,
and a higher value a higher inuence.
0.0 ÷ 3.0
1
Service settings for boiler or heat source:
Para-
meter
Parameter name Parameter description Setup range Default
value
S3.1 MAXIMUM BOILER
TEMPERATURE
Set up the maximum boiler temperature. 60 ÷ 160°C
90
S3.2
BOILER TEMPERA-
TURE INCREASE FOR
MIXING CIRCUIT
Set up the difference of the boiler temperature from the
calculated stand-pipe temperature.
0 ÷ 25°C
5
S3.12 SOLID FUEL BOILER
PROTECTION TEM-
PERATURE
Set up the maximum working temperature of the solid fuel
boiler. If the solid fuel boiler exceeds this value, the controller
automatically starts to increase the calculated temperature
for the mixing valve of the heating circuit.
70 ÷ 90°C
77
To Next Page
