USER INSTRUCTIONS
24
The device keeps the temperature adjustment system switched on for a cycle time
percentage that depends on the output function of the proportional-integral control; the
device continually adjusts the system, modulating the system ON-OFF times with a duty-
cycle that depends on the value of the output function (calculated at each time gap equal
to the cycle time). The cycle time is reinitialised every time the reference set-point is
modified.
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 the cycle time
Use the
button keys to set the value of the cycle time
for the proportional-integral control algorithm (the possible
values are: 5, 10, 15, 20, 30, 40, 50, 60 minutes).
To confirm your choice and move on to the next parameter,
press the
button key within 30 seconds.
Summary of Contents for Chorus GW 10 764
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