Ariston 3318636 Instructions De Montage Et D'emploi page 15

start-up
2) error reset
If resettable errors occur inside the boiler,
the device can read the closure of a clean
contact via input IN1 and send a reset com-
mand to the boiler.
If the clean contact of a modem is con-
nected to input IN1, the boiler can be reset
remotely without having to work on the in-
stallation itself.
230V OUT 1 OUT 2 OUT 3
N L N L N L N
FOR CLEAN CONTACT (E.G. MODEM)
PARAMETER 1100 = 3
[Differential thermostat]
230V OUT 1 OUT 2 OUT 3
N L N L N L N
230 V PUMP
In this mode the device functions as a ge-
neric differential thermostat between the
sensors connected to inputs IN1 and IN2,
with the following logic.
If the IN1 temperature exceeds the IN2
temperature by a certain number of de-
grees (set via parameter 1120), output
OUT1 is activated.
IN 1 IN 2 IN 3 BUS
L B T
ERROR INDICATION BOILER
IN 1 IN 2 IN 3 BUS
L B T
BOILER
SENSOR SENSOR
ZONES
SOLAR HEAT-
ING SYSTEM
If, on the other hand, the difference be-
tween the two temperatures drops below a
certain number of degrees (set via param-
eter 1121), output OUT1 is deactivated.
In any case, output OUT1 is activated when
the IN1 temperature drops below a certain
value (set via parameter 1124), and deac-
tivated when the IN1 or IN2 temperature
exceeds a certain value (set via parameters
1122 and 1123).
Par. Description
Reading
1110
IN1 temperature
Reading
1111
IN2 temperature
1120 ON differential
1121 OFF differential
Temperature
1122
maximum 1
Temperature
1123
maximum 2
Temperature
1124
minimum 1
GB
Range
-20 - 150°C
-20 - 150°C
0 - 30°C
0 - 30°C
0 - 130°C
0 - 130°C
0..130°C
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