Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 48 of 151
CO81
Maximum speed of the inverter compressors in sanitary water
1 100
%
CO82
Outside temperature to reduce inverter compressor speed in
Heat pump
-
50.0
-58
0.0
0
70.0
158
50.0
725
°C
°F
Bar
Psi
Dec
int
Dec
int
CO83
Hysteresis temperature to reduce inverter compressor speed in
Heat pump
0.1
0
0.1
1
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
CO84
Compressor speed if outside temperature > CO82 0 100 %
21.1 Inverter Compressor In Heat Pump And External Temperature
It is possible to reduce the compressor speed (both compressor in parallel if configured) in heat pump when
external temperature increases over a determined temperature.
22. COMPRESSOR RACK
The Ichill can manage a compressor rack:
• the machine must have only one gas circuit
• the machine must work only in cooling mode (machine only chiller)
• the machine has to regulate in proportional mode
• the machine must have max. ON/OFF compressors
The parameter Cr01 allows to enable the compressor rack regulation:
Cr01 = 0 Compressor rack regulation disabled
Cr01 = 1 Compressor rack enabled and regulation on the probe defined by parameter ST09
Cr01 = 2 Compressor rack enabled and regulation on the evaporator trasducer (that has to be
configured)
It is possible to choose the number of compressors the controller can use in case of regulation faulty probe;
the parameter involved is Cr08.
It is possible to choose the number of condenser fan steps the controller can use in case of faulty probe; the
parameter involved is Cr09.
The Energy Saving function, in case of compressor rack unit, has dedicated set point and differential
(parameter Cr06 = “Energy saving offset for compressor rack unit”, Cr07 = “Energy saving differential for
compressor rack unit”)