12
Index
Parameter
Values
Preset
P10
“Summer” lower
limit set-point
temperature
2 °C – 40°C
(step 1°C)
5,0 °C
P11
“Summer” upper
limit set-point
temperature
2 °C – 40°C
(step 1°C)
30,0 °C
P12
Changeover lower
threshold
0-24 °C
24,0 °C
P13
Changeover
upper threshold
26-48 °C
48,0 °C
P14
Differential
adjustment
±0.3 - ±2°C
±0.3 °C
END
Thermostat
saving and reset
P01: Type of system
1
two-tube system: the thermostat will drive
only the valve (ON/OFF type) used for heat-
ing both during the heating and the cooling: in
fact, the valve will control both hot water and
cold water.
2
four-tube system: the thermostat will drive
one valve (ON/OFF type) used for heating,
plus one additional valve (ON/OFF type) used
for cooling, depending on the needs of the en-
vironment.
P02: External probe
1
resumption: instead of the probe incorporat-
ed into the thermostat, an external probe can
be used to read the ambient temperature and
carry out heat regulation. Typically, this probe
will be positioned under the fan-coil where air
is sucked.
2
changeover: the external temperature probe
can be placed on the fan-coil delivery tube of a
2-tube system to perform automatic changeo-
ver between the “Summer” operation and the
“Winter” operation. To achieve this, you will
have to set the two actuation thresholds P12
and P13. Please note that either the ambient
temperature (P03 set to 1) or the set-point (P03
