Fantini Cosmi CH130ARR Manual page 12

Index Parameter
P10 "Summer" lower
limit set-point
temperature
P11 "Summer" upper
limit set-point
temperature
P12 Changeover lower
threshold
P13 Changeover
upper threshold
P14 Differential
adjustment
END Thermostat
saving and reset
Values Preset
2 °C – 40°C 5,0 °C
(step 1°C)
2 °C – 40°C 30,0 °C
(step 1°C)
0-24 °C 24,0 °C
26-48 °C 48,0 °C
±0.3 - ±2°C ±0.3 °C
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
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