Unit installation

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• Compressor is halted without pump down procedure
• Message: ” ALARM COMPRESSOR X SUCTION PRES LOW”
• Manual reset through the ESC key after the reset of the alarm condition
Discharge Pressure Alarm
If PD > (PD_alarm M67)
• Compressor is halted without pump down procedure
• Message: ” ALARM COMPRESSOR X DISCHARGE PRESS HIGH ”
• Manual reset through the ESC key
High Pressure Alarm
If the HP input is high:
• Message: ”ALARM COMPRESSOR N° X HIGH PRESSURE FAULT ”
• The system is halted
• Manual reset through the ESC key
Flow Switch Alarm
If the FL input is high for more than M62 seconds:
• Message: ” ALARM NO WATER CIRCULATION”
• The system is halted
• Automatic reset 30 second after the end of alarm condition
Serial communication alarm
MASTER: If the serial communication with a slave is broken the master get out the slave.
• Message: ” ALARM COMPRESSOR X SERIAL COMMUNICATION”
• The system work without the error slave
• Automatic reset.
SLAVE: if the slave doesn’t receive any message for 2 minute:
• LED increases lamp frequency.
• Both the compressors are switched off.
• Automatic reset.
Set Up Error
The setup values are checked at the controller power-on procedure.
If the value of parameter number XX is out of the programmed range:
• Message: “ALARM MAKE SET UP: YXXX PRESS <ON> TO START”
(Y: menu code (i.e. S/M/I/T/D); XXX: progressive number of parameter)
• The machine is halted.
• Manual reset through review of installer setup and controller reset (switching off and on again).
Compressor Pump down Alarm
If the compressor is in the logical state “off”, and the number of pump down in the last hour exceeds M70:
• Message: ” ALARM COMPRESSOR # TOO MANY PUMP DOWN ”
• The compressor is halted
• Manual reset through the ESC key
Compressor No Run Alarm
If the discharge pressure minus the suction pressure (DP-SP) does not built up a difference of 15 PSI within M61
seconds then:
• Message: ” ALARM COMPRESSOR # NO RUN ”
• The compressor is halted
• Manual reset through the ESC key
EEV board Serial communication alarm
If the EEV board is connected via serial line (M78=2) and the communication is broken for more 30 seconds,
then:
• Message: ” ALARM COMPRESSOR N.X EEV BOARD ERROR”;