M0G940E8-00 04/07/08 pag 41
ALARMS
BEFORE RESETTING THE ALARM, IDENTIFY AND ELIMINATE THE CAUSE OF ITS ACTIVATION.
REPEATED RESETS CAN CAUSE IRREVERSIBLE DAMAGES.
The
ALARMS show a potentially dangerous situation for machine safety.
Before resetting the alarm, discover and remove the cause: repeated resetting could cause irreversible damage. To avoid this,
the unit can only be reset MANUALLY from the keyboard (only when the cause for the alarm has been removed).
PRE-ALARMS and SIGNALS warn of a risky situation. These could be acceptable only if they happen occasionally or in
transitory situations (for example when the plant is being started up).
They are reset AUTOMATICALLY, as soon as the cause has been removed, without any input from the keyboard.
The pre-alarms are signalled by the fixed C code (not flashing) and on the right the control temperature.
The
FAULTS warn of problems with the probes and transducers, and are reset AUTOMATICALLY to allow the unit to continue
running, perhaps with fewer functions.
In case of doubt, always contact an authorised service centre.
The presence of an alarm is signalled by the ALARM CODE flashing and the time at which the alarm/alarms occurred.
The cumulative block relay activates simultaneously to the alarm code visualization.
Certain alarms, in particular PRE-ALARMS, do not activate the relays.
The complete list of alarms is provided below; depending on the machine type and its configuration, some of the codes shown
may not be used.
E 00 Serial faulty - comunicazione tastiera / scheda base Auto.
E 1 Faulty or disconnected water inlet probe Auto
E 2 Faulty or disconnected water outlet probe Auto.
E 3 Faulty or disconnected radiating panel water probe (radiating panel option) Auto.
E 4 Faulty or disconnected coil probe Auto.
E 5 Electric heater output probe Auto.
E 6 Faulty or disconnected external probe Auto.
E 7 Faulty or disconnected pressure transducer Auto.
E 8 Plug-in pressure probe
C 9 Water Reset inlet in short circuit or out of range Auto.
E 10 Faulty or disconnected external RH% probe Auto.
E 11 High pressure MANUAL
E 12 Low pressure Auto.
E 13 Condensing fan and/or compressor thermal switch MANUAL
E 14 Electric heater antifreeze alarm MANUAL
E 17 Pump flow Auto.
E 18 System charged with water MANUAL
E 19 Phase monitor Auto.
E 20 Antifreeze alarm MANUAL
C 21 Antifreeze PREAlarm Auto.
C 22 High pressure PreAlarm Auto.
C 24 Pump change Auto.
E 25 flow alarm C1 Auto.
E 30 Coil frost alarm MANUAL
E 31 Cooling limit alarm (radiating panel option) Auto.
E 32 Water frost alarm (radiating panel option) Auto.
E 33 Incongruent DeltaT alarm MANUAL
C 34 Low pressure pre-alarm Auto.
C / E 35 Inlet water temperature over threshold after cooling / sanitary hot water switching and vice versa Auto
C 36 Incongruent sanitary H2O thermostat Auto
1
AL
A
R
M
S
TATUS
SE
T
E 11 2
flashing
Alarm code
Alarm unit hours
2
AL
A
R
M
S
T
A
T
US
S
ET
opened alarm log
short pressure
ALARM
3
A
L
AR
M
STAT
U
S
S
ET
The most recent alarm is
visualized
Use the arrow keys to visualize
other alarms
4
AL
A
R
M
S
T
A
T
US
S
ET
To esc
Short pressure
ALARM
5
AL
AR
M
S
TAT
U
S
SE
T
To RESET
LONG pressure
ALARM
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