EVCO c-pro mega RACK - Manual (Page 89)

C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL
Page 89
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when the inverter reaches the maximum value one of the other fans is requested.
In the case where the on zone remains ongoing one or all the fans are switched on and the inverter
value remains at maximum.
In the off zone:
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as soon as requested, the inverter output is adjusted, according to TI, to the minimum value.
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when the inverter reaches the minimum value, switching off another fan is requested
If the switch off request remains ongoing, one or all of the fans are switched off and the inverter
value remains at zero.
In the case where the parameter MinI has been set, then with each switching on, the inverter will
maintain that value as the starting value.
Where the speedUp time parameter is greater than zero, the inverter assumes the maximum value
for the time in seconds described by said parameter, each time the regulation switches from the
neutral zone to the switch on zone.
Below is an example of a graph (for the switch on zone) of how regulation varies depending on
whether the fan is configured with an inverter or otherwise.
6.5.5 Unique condensation (dual/triple circuits only)
Unique condensation allows the fan process to be executed using a single circuit. By setting the
parameter enable unique condensation (PG30), the number of fan circuits is forced to one, while
the number of circuits selected for compressors remains unchanged.
In any case, in the case where this function is selected, the maximum number of fans that can be
used remains the maximum number of fans per circuit. Unique condensation will disable all the
features (alarms, fans, inverters, …) pertaining to the second and third fan management circuits.
Example: 4 fans without inverter Example: 4 fans with 1 inverter
Steps
4
Pressure
1
2
3
Out o frange. Switching on
Steps
3
Pressure
1
2
Pressure
Inverter
100.00 %
Out o frange. Switching
on