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function: the proportional component and the integral component, used to improve the
response in order to reach the temperature at the fixed setpoint. Once the proportional band
has been defined (from setpoint to setpoint -
for heating mode, from setpoint to setpoint
+
for cooling mode), its width determines the extent of the system response: if it is too
narrow, the system will be more reactive but with swings; if it is too wide, the system will be
slower. The ideal situation is one where the band is as narrow as possible, without swings.
The integration time is the parameter that determines the action of the integral component.
The longer the integration time, the slower the modification of the output and hence the slower
the system response. If the time is too short, the threshold value will be exceeded, and the
function will swing around the setpoint.
The device continually adjusts the temperature adjustment system, sending percentage
activation values to the solenoid valve. With this type of algorithm, there is no longer a
hysteresis cycle on the heating/cooling element, so the inertia times introduced by the two-
point control are eliminated. This produces energy savings because the system does not
remain switched on when it is not needed and, once the required temperature has been
reached, it continues to provide a limited contribution to compensate for the environmental
heat dispersion.
Setting the proportional band
Use the
button keys to set the value of the proportional
band of the proportional-integral control algorithm (the gap
can be set from 1°C to 10°C).
To confirm your choice and move on to the next parameter,
press the
button key within 30 seconds.
Setting the integration time
Use the
button keys to set the value of the integration
time of the proportional-integral control algorithm (the gap
can be set from 1 to 250 seconds, OFF).
To confirm your choice and move on to the next parameter,
press the
button key within 30 seconds.
Setting a command sending variation
Use the
button keys to set the minimum percentage
value for sending the command of the continuous
proportional control algorithm (the possible values are: 1,
2, 3, 4, 5, 10, 20%). To confirm your choice and move on
to the next parameter, press the
button key within 30
seconds.
USER INSTRUCTIONS
