System information

C0240111-06-07-GB
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1.4.3 Quick mind adjustment
Users only need set the required setpoint as the other parameters are adapted to the system by the
Quick Mind algorithm. The values normally used are:
SETPOINT Chiller on inlet 11.0 °C
SETPOINT Chiller on outlet 7.0 °C
SETPOINT Heat pump on inlet 42.5 °C
SETPOINT Heat pump on outlet 45.0 °C
QUICK MIND is a self-adapting algorithm for adjusting the temperature of the water treated by an all-in-
one unit. The following figure shows how this adjustment is made:
Tin/Tout
ZONA NEUTRA
Setpoint
Attivazione compressoriDisattivazione compressori
ESTATE
Tin/Tout
ZONA NEUTRA
Setpoint
Attivazione compressori Disattivazione compressori
INVERNO
Figure 1.7: QUICK MIND adjustment model (chiller and heat pump)
The setpoint remains within a dead area. If the temperature also remains within this area, no change is
made to the number of active compressors.
When the temperature leaves the dead area following a change in system load, the compressors are
either activated or deactivated in order to return the temperature to the dead area.
The amplitude of the neutral zone depends on the dynamic characteristics of the system and, in
particular, on the amount of water it contains and the load. The self-adapting algorithm is able to
“measure” system dynamics and calculate the minimum dead area in order to respect compressor
activation times and the maximum number of start-ups per hour.
Both return and delivery temperatures can be adjusted.
Special functions are also present which reduce the number of compressor start-ups in the event of very
low loads or start-ups of units with significantly higher or lower temperatures than the setpoint.
Compressors deactivated
SUMMER
WINTER
DEAD AREA
DEAD AREA
Compressors deactivated
Compressors activated
Compressors activated