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8. 1
N o
c o m m u n i c a t i o n
If there is no communication between the
pCO board and the GR3 boards, the GR3
boards will stop the compressors in 120".
No alarm will be shown, but on the UART
the number of data exchange will falls to
0 (to access the menu, on the GR3 board
menu press the screwdriver key for 5").
8.3
ALARMS LIST
CODE
FLOW SWITCH (MASTER)
FLOW SWITCH (SLAVE)
Cond. Pump /FL (MASTER)
Cond. Pump /FL (SLAVE)
Ter Pump Evap (MASTER)
Ter Pump Evap (SLAVE)
MT CP 1
MT CP 1 °
MT CP 1B
MT CP 2
MT CP 2 °
MT CP 2B
MT CP 3
MT CP 3 °
MT CP 3B
MT CP 4
MT CP 4 °
MT CP 4B
Low Press. 1
Low Press. 2
Low Press. 3
Low Press. 4
AP - TGP 1
AP - TGP 2
AP - TGP 3
AP - TGP 4
Antifreeze 1
Antifreeze 2
Antifreeze 3
Antifreeze 4
MT MV 1
MT MV 2
MT MV 3
MT MV 4
Probe 1
Probe 2
Probe 3
Probe 4
"MASTER" monitor
"SLAVE" monitor
"MASTER" Recovery flow switch
"SLAVE" Recovery flow switch
MT MPOE 1 "MASTER"
MT MPOE 2 "MASTER"
MT MPOE 3 "MASTER"
MT MPOE 1 "SLAVE"
MT MPOE 2 "SLAVE"
MT MPOE 3 "SLAVE"
AG. Evap 1
AG. Evap 2
AG. Evap 3
Probe B4
Probe B5
14
8
ALARMS
8.2
Guasto sonde di regolazione
Se le sonde (SAC della master se regolazi-
one in uscita o SIW della master se rego-
lazione in ingresso) assumono un valore
fuori dal range –32°C + 90°C il termostato
automaticamente viene forzato a 0 e tutti i
compressori vengono spenti. Solo in caso di
guasto alla sonda SIW (indipendentemente
dalla regolazione ) viene visualizzato a dis-
play della scheda master l'allarme e di con-
DESCRIPTION
"MASTER" board flow switch alarm
"SLAVE" board flow switch alarm
"MASTER" board condenser pump thermal switch
"SLAVE" board condenser pump thermal switch
"MASTER" board evaporator pump thermal switch
"SLAVE" board evaporator pump thermal switch
Compressor 1 thermal switch
Compressor 1° thermal switch
Compressor 1B thermal switch
Compressor 2 thermal switch
Compressor 2° thermal switch
Compressor 2B thermal switch
Compressor 3 thermal switch
Compressor ° thermal switch
Compressor 3B thermal switch
Compressor 4 thermal switch
Compressor 4° thermal switch
Compressor 4B thermal switch
Low pressure circuit 1
Low pressure circuit 2
Low pressure circuit 3
Low pressure circuit 4
High pressure or discharge gas thermal switch circuit 1
High pressure or discharge gas thermal switch circuit 2
High pressure or discharge gas thermal switch circuit 3
High pressure or discharge gas thermal switch circuit 4
Antifreeze circuit 1
Antifreeze circuit 2
Antifreeze circuit 3
Antifreeze circuit 4
Circuit 1 fan thermal switch
Circuit 2 fan thermal switch
Circuit 3 fan thermal switch
Circuit 4 fan thermal switch
Probes faulty or missing in circuit 1
Probes faulty or missing in circuit 2
Probes faulty or missing in circuit 3
Probes faulty or missing in circuit 4
"MASTER" voltage monitor
"SLAVE" voltage monitor
"MASTER" total recovery flow switch
"SLAVE" total recovery flow switch
"MASTER" evaporator 1 pump thermal switch
"MASTER" evaporator 2 pump thermal switch
"MASTER" evaporator 3 pump thermal switch
"SLAVE" evaporator 1 pump thermal switch
"SLAVE" evaporator 2 pump thermal switch
"SLAVE" evaporator 3 pump thermal switch
Antifreeze evaporator gas circuit 1
Antifreeze evaporator gas circuit 2
Antifreeze evaporator gas circuit 3
B4 probes faulty or missing
B5 probes faulty or missing
seguenza sul RA della scheda pCO.
8.2
Riassunto allarmi globale
Sulla scheda pCO è presente un relè per il ri-
assunto allarmi globale (RA) delle macchine.
Se interviene uno dei due RA delle schede
GR3 allora anche quello della scheda pCO
interviene. L'uscita della scheda è NO8.
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