Automatic Alarms - Ferroli RHV R134a Instruction Manual

AUTOMATIC ALARMS

In case of these alarms the unit start automatically after removing the cause. Manual reset is not required.
If there are no active AUTOMATIC alarms, the "EMPTY" string is displayed for 2 seconds.
Automatic alarms table
Alarms shown on display
Dinamic set point sens ERR
Sens ERR evaporator water inlet
Sens ERR evaporator water outlet Evaporator water outlet probe
circuit 1 High press sens ERR
comp 1 temp disch sens ERR
circuit 1 Low press sens ERR
condenser 1 temp sens ERR
circuit 2 High press sens ERR
comp 2 temp disch sens ERR
circuit 2 Low press sens ERR
condenser 2 temp sens ERR
Power supply control alarm
Heat recovery H2OIN sens ERR
Sens ERR outdoor air probe
DEMAND LIMIT sens ERR
Circuit 1 liquid probe sens ERR
Circuit 2 liquid probe sens ERR
Circuit 1 high press pre-all
Circuit 2 high press pre-all
Circuit 1 low press pre-all
Circuit 2 low press pre-all
Circuit 1 gas leakage
Circuit 2 gas leakage
ERR open file black-box
ERR write file black-box
ERR close file black-box
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MONITORING SYSTEM - Alarms
Components involved
Dinamic setpoint probe
Evaporator water inlet probe
High pressure transducer circuit 1
Discharge pipe compressor 1 probe
Low pressure transducer circuit 1
Condenser 1 water outlet probe
High pressure transducer circuit 2
Discharge pipe compressor 2 probe
Low pressure transducer circuit 2
Condenser 2 water outlet probe
Phase sequence monitor
Heat recovery water inlet probe
Outdoor air probe
DEMAND LIMIT analog input
Circuit 1 coil probe
Circuit 2 coil probe
High pressure transducer circuit 1
High pressure transducer circuit 2
Low pressure transducer circuit 1
Low pressure transducer circuit 2
Low pressure transducer / switch circuit 1
Low pressure transducer / switch circuit 2
Black-box file
Alarm effect
Stop dinamic setpoint function
Stop compressors and fans
The evaporator pump stays on.
Stop condenser pump
Stop compressors 1 and fans circuit 1
The evaporator pump stays on.
Stop condenser pump
Stop compressors 2 and fans circuit 2
The evaporator pump stays on
Stop condenser pump
Stop unit
immediate exit
from heat recovery mode
The settings depend on the probe
not be executed
DEMAND LIMIT function ignored
Stop compressors and fans circuit 1
The evaporator pump stays on
Stop compressors and fans circuit 2
The evaporator pump stays on
Red LED blinking
Stores in the historic alarm
The unit stay on
Stop unit
Nothing
Cause of alarm
Sensor faulty, Interrupted or
in short circuit
Incorrect sequence or no
power supply phases
Sensor faulty, Interrupted or
in short circuit
Sensor faulty, Interrupted or
in short circuit
Sensor faulty, Interrupted or
in short circuit
Sensor faulty, Interrupted or
in short circuit
-current value outside limit
possible leakage of gas
from the circuit
SW error