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Cod. 710.0103.01.01 – Rev.04 – 09.2012
Resettable alarms
An alarm is defined resettable (rSt) if the cause can be repaired. These alarms can be directly reset by the controller proceeding as
following:
-
Display the alarms following the above instructions, then push
button when “rSt” label is lighted.
-
Exit by pushing
button or wait for automatic exit.
Non-resettable alarms
An alarm is defined NON-resetable (NO) if it can’t directly be reset by the controller until the causes will be removed.
If one of these alarms appears proceed as following:
-
Identify the alarm code shown on controller display.
-
Follow indications on alarm table PAR. 6.5.3. to eliminate the alarm original cause.
-
Reset the alarm using the procedure described on previous point.
-
If the alarm persists, try to reset by pushing
button for 3 sec. stopping the operation process (label OFF shown on
controller display), then restart by pushing the same button.
-
If the alarm persists call our Service Center.
-
Quit pushing
button or wait for automatic quit.
6.5.3 Advanced warning and alarm table
Label
Meaning
Cause / Origin
Controller status
Reset
P1
(Pb1) Dew point probe
alarm
Missing, faulty probe or
resistance exceeding
value
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Automatic
if the probe value recovers
If the alarm persists replace probe.
P2
(Pb2) Air inlet
temperature probe
alarm
Missing, faulty probe or
resistance exceeding
value
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Automatic
if the probe value recovers
If the alarm persists replace probe.
P3
(Pb3) Room
temperature probe
alarm
Missing, faulty probe or
resistance exceeding
value
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Automatic
if the probe value recovers
If the alarm persists replace probe.
P4
(Pb4) Refrigerant circuit
suction temperature
probe alarm
Missing, faulty probe or
resistance exceeding
value
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Automatic
if the probe value recovers
If the alarm persists replace probe.
A1
Dew Point high
temperature advanced
warning (Pb1 probe)
Dew Point temperature
higher than the presetted
value
( PB1 > AL23 )
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Not necessary
A2
Dew Point low
temperature advanced
warning (Pb1 probe)
Dew Point temperature
lower than the presetted
value
( PB1 < AL20 )
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Not necessary
A3
High inlet air
temperature advanced
warning (Pb2 probe)
Inlet air temperature
higher than the presetted
value
( PB2 > AL26 )
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Not necessary
A4
Room temperature
probe advanced
warning (Pb3 probe)
Ambient temperature
higher than the presetted
value
( PB3 > AL11 )
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Not necessary
A5
High refrigerant circuit
suction temperature
advanced warning
(Pb4)
Refrigerant circuit suction
temperature higher than
the presetted value
( PB4 > AL29 )
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Not necessary
AHP
High pressure safety
switch (HP/LP) alarm
(1P1 switch)
High pressure switch
digital input activation
Open collector / alarm relay ON
Buzzer ON
High pressure alarm icon lighted
Alarm code on display
Manual
Digital input deactivation then manual reset from
Function menu.
AtFA
(1Q2) Fan thermal
protection alarm
Digital input activation
Open collector / alarm relay ON
Buzzer ON
Main alarm icon lighted
Alarm code on display
Manual
Restart the (1Q2) thermal protection, then proceed
with manual reset from Function menu.
If the alarm persists call our service centre.
