User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
1= the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity 25% 50% 75% 100%
Compr. Compressor ON Compressor ON Compressor ON Compressor ON
Out relay Step P 1 ON Step P 1 ON Step P 1 ON Step P 1 OFF
Out relay Step P 2 OFF Step P 2 ON Step P 2 ON Step P 2 OFF
Out relay Step P 3 OFF Step P 3 OFF Step P 3 ON Step P 3 OFF
Direct action with sequential step
Compressor P1 P2 P3 Power involved
0 %
25 %
50 %
75 %
100 %
Par CO06 = 2 inverse action with sequential step
1= the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity 25% 50% 75% 100%
Compr. Compressor ON Compressor ON Compressor ON Compressor ON
Out relay Step P 1 ON Step P 1 ON Step P 1 ON Step P 1 OFF
Out relay Step P 2 ON Step P 2 ON Step P 2 OFF Step P 2 OFF
Out relay Step P 3 ON Step P 3 OFF Step P 3 OFF Step P 3 OFF
Inverse action with sequential step
Compressor P1 P2 P3 Power involved
0 %
25 %
50 %
75 %
100 %
Par CO06 = 3 Continuous with steps and direct total action
3 = the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity 25% 50% 75% 100%
Compr. compressor ON compressor ON compressor ON compressor ON
Out relay Step. N° 3 OFF Step N° 3 OFF Step. N° 3 OFF Step. N° 3 ON
Out relay Step N° 2 OFF Step. N° 2 OFF Step. N° 2 ON Step. N° 2 ON
Out relay Step. N° 1 OFF Step N° 1 ON Step N° 1 ON Step N° 1 ON
Direct action with sequential step
Compressor P1 P2 P3 Power involved
0 %
25 %
50 %
75 %
100 %
ATTENTION
When working with capacity control in sequential step in direct or reverse modes: if the power requested is 50% and 75% the unit turn
on also the step 25% that must be enabled to make run the other two.
21.1 MINIMUM LOAD START- UP
Par. CO07 configuration of the start-up with minimum load and compressor type.
It allows to configurate the 1
st
partialization valve of the compressor that can be the partialization start-up valve of an alternative
compressor or the minimum load for screw compressor.
In this way the lower value of partialization (normally is configured as the 1
st
output with the 25%) can be used as minimum start-up load
and also as thermoregulation step or only as minimum start-up load and never as thermoregulation step.
EXAMPLE