1592021021 XC1008-1011-1015D GB A5 r.1.5A 12.10.2009 XC1008-1011-1015D 33/66
AC3 Low pressure (temperature) alarm for compressors – circuit 1: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C;
1÷430 PSI; 1÷200.0°F; 10 ÷ 3000KPA)
The measurement unit depends on C45 parameter. AC3 is always subtracted to the set point
SETC1. When the value SETC1-AC3 is reached the “Low alarm - Suction 1” is enabled, (possibly
after the AC5 delay time)
AC4 High pressure (temperature) alarm for compressors – circuit 1: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C;
1 ÷ 430 PSI; 1 ÷ 200.0°F; 10 ÷ 3000KPA)
The measurement unit depends on C45 parameter. AC4 is always added to the set point SETC1.
When the value SETC1+AC4 is reached the “High alarm - Suction 1” is enabled, (possibly after the
AC5 delay time)
AC5 Low and High compressor pressure (temperature) alarms delay – circuit 1 (0÷255 min) time
interval between the detection of a pressure (temperature) alarm condition and alarm signalling.
AC6 Low pressure (temperature) alarm for compressors – circuit 2: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C;
1÷430 PSI; 1÷200.0°F)
The measurement unit depends on C43 parameter. AC6 is always subtracted to the set point
SETC2. When the value SETC2-AC6 is reached the “Low alarm - Suction 2” is enabled, (possibly
after the AC8 delay time)
AC7 High pressure (temperature) alarm for compressors – circuit 2: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C;
1 ÷ 430 PSI; 1 ÷ 200.0°F; 10 ÷ 3000KPA)
The measurement unit depends on C45 parameter. AC7 is always added to the set point SETC2.
When the value SETC2+AC7 is reached the “High alarm - Suction 1” is enabled, (possibly after the
AC8 delay time)
AC8 Low and High compressor pressure (temperature) alarms delay – circuit 2 (0÷255 min) time
interval between the detection of a pressure (temperature) alarm condition and alarm signalling.
AC9 Relay activated in case of pressure (temperature) alarm
nu = no relay activation, only visual signalling; Alr: all the C(i) outputs set as ALr; ALr1: all the C(i)
outputs set as ALr1, ALr2: all the C(i) outputs set as ALr2
AC10 Service request: (0÷25000h with 0 the function is disabled) number of running hours after that
maintenance warning is generated
AC11 Relay activated in case of service request alarm
nu = no relay activation, only visual signalling; Alr: all the C(i) outputs set as ALr; ALr1: all the C(i)
outputs set as ALr1, ALr2: all the C(i) outputs set as ALr2
AC12 Low pressure-switch intervention numbers – circuit 1: (0÷15). Every time the pressure-switch is
activated all the compressors of the circuit 1 are turned off. If the low pressure-switch is activated
AC12 times in the AC13 interval, the compressors of the first circuit are switched off and only the
manually unlocking is possible.
AC13 Pressure-switch interventions time (0÷255 min) – circuit 1 Interval, linked to the AC12 parameter,
for counting interventions of the low pressure-switch.
AC14 Number of steps engaged with suction probe 1 faulty (0 ÷ 15)
AC15 Not used
AC16 Low pressure-switch intervention numbers – circuit 2: (0÷15). Every time the pressure-switch is
activated all the compressors of the circuit 2 are turned off. If the low pressure-switch is activated
AC16 times in the AC17 interval, the compressors of the second circuit are switched off and only the
manually unlocking is possible.
AC17 Pressure-switch interventions time (0÷255 min) – circuit 2 Interval, linked to the AC16 parameter,
for counting interventions of the low pressure-switch.
AC18 Number of steps engaged with suction probe 2 faulty (0 ÷ 15)
AC19 Not used
6.1.14 Fan Alarms (AF1-AF17)
AF1 Low pressure (temperature) alarm for fans – circuit 1: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C; 1÷430
PSI; 1÷200.0°F; 10 ÷ 3000KPA)
The measurement unit depends on C45 parameter. AF1 is always subtracted to the set point
SETF1. When the value SETF1-AF1 is reached the “Low alarm – Condenser 1” is enabled, (possibly
after the AF3 delay time)
AF2 High pressure (temperature) alarm for fans– circuit 1: (0.10 ÷ 30.00bar; 0.0 ÷ 100.0°C; 1 ÷ 430
PSI; 1 ÷ 200.0°F; 10 ÷ 3000KPA)
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