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FC 1
Activation of free cooling
0 = Disabled
1 = enabled fan control with condensing priority
2 = enabled fan control priority with free cooling priority
3 = enabled with external free cooling ventilation
4 = enabled in water/water unit
FC 2
Free cooling mode input/output differential
The FC function is enabled if the external temperature drops at least FC02
below the evaporator inlet water temperature for at least FC03
FC 3
Free cooling input/output delay
FC 4
Damper closing/3-way water valve differential/free cooling ON-OFF relay with
temperature control being satisfired
FC 5
Band regulation steps/ventilation modulating output in free cooling mode
FC 6
Regulation steps/ventilation modulating output in free cooling mode
0 = 100% on demand
1 = with step/proportional regulation
FC 7
Anti-freeze prevention setting with unit in free cooling mode
FC 8
Free cooling anti-freeze alarm prevention differential
FC 9
Minimum operation speed of the fans in free cooling mode
FC 10
Maximum operation speed of the fans in free cooling mode
FC 11
Peak time at maximum speed after switch-on
FC 12
Circuit 1 - 2 - 3 - 4 1st step split coil setting
FC 13
Circuit 1 - 2 - 3 - 4 1st step split coil differential
FC 14
Circuit 1 - 2 - 3 - 4 2nd step split coil setting
FC 15
Circuit 1 - 2 - 3 - 4 2nd step split coil differential
FC 16
Delay for valve exchange of the split coils
FC 17
Outside Set point temperature air for free cooling enable
FC 18
Condenser water temperature set point for activation free cooling FC
FC 19
Delayed activation of the water probe condenser FC free cooling
FC 20
Delay switching on / off valves free cooling
FC 21
Free cooling set point
FC 22
Free cooling differential
FC 23
Free cooling delay for the end
FC 24
Delay for the activation of preventing frost free cooling
FC 25
Free cooling setpoint valve in chillers
FC 26
Differential valve free cooling in chiller
FC 27
Free cooling valve regulation minimum percentage
FC 28
Free cooling valve regulation maximum percentage
FC 29
Maintaining minimum valve opening
0 = no
1 = yes
FC 30
Time to force the Free Cooling starting after start-up (0=function disabled)
FC 31
Set temperature external air to force the Free Cooling status during the start
up
Parameter
Description
US 1
Auxiliary relay 1 operation
0 = not enabled
1 = always enabled with direct action
2 = enabled with direct action only with the unit ON
3 = always enabled with inverse action
4 = enabled with inverse action only with the unit ON
1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx
Auxiliary relays menu
Auxiliary relay n° 1
0
4
0.1
25.0
°C
1
45
°F
0
250
sec
0.1
25.0
°C
1
45
°F
0.1
25.0
°C
1
45
°F
0
1
-50.0
110
°C
-58
230
°F
0.1
25.0
°C
1
45
°F
0
100
%
0
100
%
0
250
sec
-50.0
110
°C
-58
230
°F
0.0
50.0
Bar
0
725
Psi
0.1
25.0
°C
1
45
°F
0.1
14.0
Bar
1
203
Psi
-50.0
110
°C
-58
230
°F
0.0
50.0
Bar
0
725
Psi
0.1
25.0
°C
1
45
°F
0.1
14.0
Bar
1
203
Psi
0
250
sec
-50.0
110
°C
-58
230
°F
-50.0
110
°C
-58
230
°F
0
250
sec
0
250
sec
-50.0
110
°C
-58
230
°F
0.1
25.0
°C
1
45
°F
0
250
sec
0
250
sec
-50.0
110
°C
-58
230
°F
0.1
25.0
°C
1
45
°F
0
FC28
%
FC27
100
%
0
1
0
250
sec
-50.0
°C
ST01
-58
°F
min
max
um
Resolution
0
4
iProCHILL
Dec
int
10 sec
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
10 sec
Dec
int
140/205
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