Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 88 of 151
44. RECOVERY FUNCTION
The recovery function is Enabled if:
1 Par. rC01 not equal to 0.
2 Chiller running mode.
3 The condensing temperature / pressure is lower than set rC06 –rC07 (differential).
4 The input/output resources are configured
5 The remote recovery digital input is activated.
The recovery function is NOT Enabled if:
1 Par. rC01 = 0.
2 Heat pump running mode, remote OFF or stand by.
3 The condensing temperature / pressure is higher than set rC06.
4 The input/output resources are not properly configured (alarm ACF9).
5 The remote recovery digital input is not activated.
NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #1
Output relay configured as valve for recovery circuit #1.
Remote recovery digital input for circuit #1.
Condenser probe of the circuit #1.
NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #2
Output relay configured as valve for recovery circuit #2.
Remote recovery digital input for circuit #2
Condenser probe of the circuit #2.
44.1 UNIT WITH TWO SEPARATE IDRAULIC CIRCUITS
FUNCTIONING
Par. rC01 = 1 unit with two separate circuits:
CIRCUIT # 1
With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper
condition, the unit can start the recovery of the first circuit if the corresponding digital input is active. When
the digital input is active the relay of the valve for the recovery of the first circuit is activated.
CIRCUIT # 2
With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper
condition, the unit can start the recovery of the second circuit if the corresponding digital input is active.
When the digital input is active the relay of the valve for the recovery of the second circuit is activated.
After starting the function, if the digital input becomes not active the recovery function runs for the time set in
rC04 before stopping.
Between the end and the next recovery function the instrument waits the time set in the parameter rC05
even if the digital input is activated again.
RECOVERY START AND STOP OF THE TWO CIRCUITS CONFIGURED WITH CAPACITY STEPS
During the start and the stop of the function the time delay rC02 and rC03 are not counted and the valve is
immediately turned on or off.
RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP
Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors), if the
thermoregulation requires to turn on one or more resources and the recovery is activated from the digital
input the unit turns on only one step and then waits the rC02 delay (this delay keep off all the other steps
after the recovery is started). After the delay the recovery valve is turned on and, after the rC03 time (this