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1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10
IC200D
108/192
42.3 UNIT WITH TWO IDRAULIC CIRCUIT WORKING IN PARALLEL (rC01=2)
The principle of operation is similar to the unit with separate circuits; in particular condition in which only one
of the two circuits is active, the digital inputs of retrieval request are not specific for circuit 1 and circuit 2 but
are generic.
So if the unit is on in chiller, only one circuit is working, condenser temperature / pressure are lower than
rC06, heat recovery starts if one of the digital inputs configured as heat recovery circuit 1 or circuit 2 is active
and, in case of use of the recovery probe, if the temperature is below the rC10 set point (both conditions
must be fulfilled).
The recovery valve activated will be the one belonging to the circuit switched on at that time.
When heat recovery digital input is de-activated or heat recovery temperature rise over RC10 + RC13, then
the heat recovery valve of circuit 1 or circuit 2 will be de-activated in the same way of unit with two separated
circuits.
ENTER/EXIT FORM HEAT RECOVERY CIRCUIT 1 OR CIRCUIT 2 IF ONLY ONE CIRCUIT IS WORKING
Enter in heat recovery
Heat recovery starts if the the digital input configured as recovery circuit 1 or circuit 2 is active and, in case of
use of the probe recovery, if the temperature is below the rC10 set point (both conditions must be fulfilled):
If the unit has only one compressor per circuit, heat recovery valve of circuit 1 or circuit 2 is switched
on (depending on wich circuit is active)
If the unit has more than one compressor per circuit:
o
if the heat recovery request comes when the number of compressors switched on is lower
than the maximum available, the recovery valve is activated with delay of rC02 seconds;
during this delay the switching on of more compressors of the circuit, if required by the
regulation, is inhibited.
Once the valve is turned on, any additional compressors required by regulation chiller
compressors will be delayed of rC03 seconds after the valve
o
if the heat recovery request comes when the maximum number of available compressor is
switched on, a compressor is switched off and a delay time rC02 starts counting; once
elapsed, the heat recovery valve is activated, condenser fan is switched off (if rC09=1) and
starts conting a delay rC03 after wich the compressor will be re-started (if CO02 time is
elapsed
Exit from heat recovery
if the unit has only one compressor per circuit, when heat recovery request is not active the heat
recovery valve of circuit 1 or circuit 2 is de-activated
if the unit has more than a compressor per circuit:
o
if the heat recovery request is de-activated when the number of compressors switched on is
lower than the maximum available, the recovery valve is de-activated with delay of rC02
seconds; during this delay the switching on of more compressors of the circuit, if required by
the regulation, is inhibited.
Once the valve is turned on, any additional compressors required by regulation chiller
compressors will be delayed of rC03 seconds after the valve
o
if the heat recovery request is de-activated when the maximum number of available
compressor is switched on, a compressor is switched off and a delay time rC02 starts
counting; once elapsed, the heat recovery valve is activated, condenser fan is switched off
(if rC09=1) and starts conting a delay rC03 after wich the compressor will be re-started (if
CO02 time is elapsed
ENTER/EXIT FORM HEAT RECOVERY IF BOTH CIRCUITS ARE WORKING
The principle of operation is similar to the unit with separate circuits; so if the unit is on in chiller, both circuits
are working, condenser temperature / pressure are lower than rC06, heat recovery starts if one of the digital
inputs configured as heat recovery circuit 1 or circuit 2 is active and, in case of use of the recovery probe, if
the temperature is below the rC10 set point (both conditions must be fulfilled):
if the unit has only one compressor per circuit, when heat recovery request is active the heat
recovery valve of circuit 1 or circuit 2 is activated
if the unit has more than a compressor per circuit:
o
if the heat recovery request comes when the number of compressors switched on is lower
than the maximum available, the recovery valve is activated with delay of rC02 seconds;
during this delay the switching on of more compressors of the circuit, if required by the
Содержание Dixell iChill IC200D EVO Series
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Страница 42: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 42 192 Auxiliary output status ...
Страница 177: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 177 192 VI622 or TI620 led keyboard ...
Страница 180: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 180 192 Not used ...
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