Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 90 of 151
Circuits 1 and 2 configured with more than one step of power (Eg. each circuit with three compressors). After
the rC04 time delay (minimum on time of the recovery function when activated) if the digital input of the
recovery is not active the units stops the new resources for the time set in rC02. After this delay the recovery
valve is turned off and the regulation restarts with its normal running condition.
RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
When the system is running with 100% (Eg. all the three compressor of a circuit are on) of power and the
digital input start the recovery function: before turning on the recovery valve one of the step (depending on
the time running hours), is turned off for the time set in rC02. After rC02 the recovery valve is turned on.
Then, after the rC03 time (this delay keeps off all the other steps after the recovery is started) the resource
forced off if necessary is turned on again.
RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
When the system is running with 100% (Eg. all the three compressor of a circuit are on) of power and the
digital input stop the recovery function: after the rC04 time delay (minimum on time of the recovery function
when activated) and before turning off the recovery valve, one of the step is turned off for the time set in
rC02. When the delay is expired the unit turns off the recovery valve and and the regulation restarts with its
normal running condition.
ATTENTION:
For both the circuits: when the compressor are off because of the thermoregulation and the digital input of
the recovery function is active, the recovery valve is disabled.
45. CONDENSER TEMPERAURE / PRESURE CONDITION TO
ENABLE/DISABLE THE RECOVERY CYCLE
The recovery can be disabled depending on the condenser condition to avoid a possible high pressure
alarm. The function can be executed by programming the analogue input as condenser transducer 1 or 2
(Par CF07=0 temperature control or CF07= 1 pressure control).
FUNCTIONING
45.1 RECOVERY DISABLED
With the recovery function is activated: if the temperature/pressure is equal or higher than the set rC06 (limit
of the recovery cycle) the recovery cycle, of the circuit detected by transducer, is disabled. When the
recovery is disabled the bottom display shows the following blinking icons: b1rC = for circuit 1, b2rC = for
circuit 2.
45.2 RECOVERY ENABLED
If the temperature/pressure decreases under the set rC06-rC07 (differential) the recovery cycle, of the circuit detected by that
transducer , is enabled again.
45.3 NOTE ABOUT RECOVERY ENABLED/DISABLED
To avoid long period of time with recovery function disabled and the temperature/pressure within the range rC06-rC07, the units starts
counting the delay set in rC08. After this delay if the decreasing temperature is still within the rC06-rC07 range, the recovery cycle is
forced on again.
46. OPERATION RELATED TO THE REAL TIME CLOCK
46.1 Real Time Clock Disabled By Digital Input
When the digital input configured as “Operation working mode: by RTC or keyboard” is active, the real time
clock is disabled and all the function involved with the real time clock are disabled.
46.2 “Only supply fan” working mode”
This function can be enabled only if the Ichill is provided with internal clock.
If one of the digital input is configured as “Operation mode with supplay fan only” and it is activated, the Ichill
enables only the supply fan (other loads are disabled); the supplay fan works according to the time table
programming (parameters ES01..ES13).