Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 42 of 151
Fig 2
Part Winding start- up of Compressors or capacity compressors
If one or more capacity compressors are configured and the thermoregulation requires the full load start-up:
the controller turns the solenoid valve on, after 1 second the first motor part of the 1
st
compressor (relay K1
of Fig. 2) and then the complete control with the contactor K2. Durning the CO13 time delay the step valve is
forced on: minimum power. When the C013 is expired if the thermoregulation requires more power the valve
will be switched off (maximum power).
19. COMPRESSORS ROTATION
The CO14 parameter determines the sequence of compressor activation / deactivation.
CO14= 0 Fixed sequence.
E.g.: 3 compressors configured
Switching on: 1
st
compressor Æ 2
nd
compressor Æ 3
rd
compressor Æ etc.
Switching off: 3
rd
compressor Æ 2
nd
compressor -Æ 1
st
compressor
CO14= 1
Working hour rotation
First compressor to be activated is the compressor with less working hours; next compressor to be activated
follows the same rule.
CO14= 2
Sart-up rotation
First compressor to be activated is the compressor with less start-up; next compressor to be activated
follows the same rule.
20. CAPACITY STEP CONTROL
CO06 capacity step operation mode.
To select the right operation mode, please read the compressor technical documentation.
 CO06 = 0 ON/OFF step
Eg: compressor with 3 capacity step.
Capacity 25% 50% 75% 100%
Compr.
Compressor ON Compressor ON Compressor ON Compressor ON
Out relay
Cap. step 1 ON Cap. step 1 OFF Cap. step 1 OFF Cap. step 1 OFF
Out relay
Cap. step 2 OFF Cap. step 2 ON Cap. step 2 OFF Cap. step 2 OFF
Out relay
Cap. step 3 OFF Cap. step 3 OFF Cap. step 3 ON Cap. step 3 OFF
Step control process
Compressor Cap.
step 1
Cap.
step 2
Cap.
step 3
Power