CO 20
Operative mode of the condenser pump
0= Not enabled
1= ON/OFF: continuous operation type 1
When the unit is running in Chiller or Heat Pump the pump is running. In std-by
or remote OFF mode, the pump is OFF.
2= ON/OFF: on if called by compressor
When a compressor is running, the pump is running.
3= ON/OFF: continuous operation type 2
When the unit is running in Chiller or Heat Pump or in STD-By or in OFF, the
pump is running.
4= Modulation: continuous operation type 1
When the unit is running in Chiller or Heat Pump the pump is running. In std-by
or remote OFF mode, the pump is OFF.
5= Modulation: on if called by compressor
When a compressor is running, the pump is running.
6= Modulation: continuous operation type 2
When the unit is running in Chiller or Heat Pump or in STD-By or in OFF, the
pump is running.
0 6
CO 21
Delay time to switch off the pump starting from compressor deactivation or when
the unit is placed in std-by
0 250 Min
CO 22
Number of running hours for condenser pump rotation 0 999 10Hr 10Hr
CO 23
Contemporary working time of the pumps during rotation 0 250 Sec
Load maintenance
CO 24
Compressor 1: number of working hour to signalling maintenance warning 0 999 10 Hr 10 Hr
CO 25
Compressor 2: number of working hour to signalling maintenance warning 0 999 10 Hr 10 Hr
CO 26
Evaporator pump / supply fan: number of working hour to signalling maintenance
warning
0 999 10 Hr 10 Hr
CO 27
Support evaporator pump / supply fan: number of working hour to signalling
maintenance warning
0 999 10 Hr 10 Hr
CO 28
Condenser pump: number of working hour to signalling maintenance warning 0 999 10 Hr 10 Hr
CO 29
Support condenser pump: number of working hour to signalling maintenance
warning
0 999 10 Hr 10 Hr
Pump down
CO 30
Pump down operating mode (See pump down ON/OFF function)
0= Not enabled
1= Pump down enabled only during the switching off
2= Pump down enabled during the switching off and switching on
3= in Chiller mode pump down enabled only during the switching off
4= in Chiller mode pump down enabled during the switching off and switching on
0 4
CO 31
Pump–down pressure setpoint (See pump down ON/OFF function) 0
0
50.0
725
Bar
psi
Dec
int
CO 32
Pump-down pressure differential (See pump down ON/OFF function) 0
0
14.0
203
Bar
psi
Dec
int
CO 33
Maximum pump–down time duration at start-up and stop (See pump down
ON/OFF function)
0 250 Sec
Evaporator Unloading
CO 34
Unloading compressor setpoint in chiller to prevent high temperature of the
evaporator water inlet (See unloading function).
-50
-58
70.0
158
°C
°F
Dec
int
CO 35
Unloading Differential. From high temperature of the evaporator water inlet (See
unloading function).
0.1
1
25.0
45
°C
°F
Dec
int
CO 36
Delay time to engage the Unloading function from high temperature of the
evaporator water inlet (See unloading function).
0 250 Sec 10sec
CO 37
Maximum unloading duration time to keep activated the Unloading function from
high temperature of the evaporator water inlet (See unloading function).
0 250 Min
CO 38
Unloading compressor setpoint in chiller to prevent low temperature of the
evaporator water inlet (See unloading function).
-50
-58
70.0
158
°C
°F
Dec
int
CO 39
Unloading Differential to prevent low temperature of the evaporator water inlet
(See unloading function).
0.1
1
25.0
45
°C
°F
Dec
int
CO 40
Maximum unloading duration time to keep activated the Unloading function from
low temperature of the evaporator water inlet (See unloading function).
0 250 Min
Condenser Unloading
CO 41
Unloading compressor setpoint. From temperature / pressure in chiller mode
(See unloading function).
0
0
50.0
725
Bar
psi
Dec
int
CO 42
Unloading Differential. From temperature / pressure in chiller mode (See
unloading function).
0.0
0
14.0
203
Bar
Psi
Dec
int
CO 43
Unloading compressor setpoint. From temperature / pressure in HP mode (See
unloading function).
0
0
50.0
725
Bar
psi
Dec
int
CO 44
Unloading Differential. From temperature / pressure in HP mode (See unloading
function).
0.0
0
14.0
203
Bar
Psi
Dec
int
CO 45
Maximum unloading duration time from temperature/pressure control. 0 250 Min
CO 46
Number of steps for circuit with active unloading
1= 1
st
step
2= 2
nd
step
3= 3
rd
step
1 3