Display the alarms following the above instructions, then push
-
controller automatically skips to next alarm, if present).
-
Quit by pushing
Not resettable alarms
An alarm is defined NOT resettable (NO) when the cause that produces it persists, these types of alarms can't be directly reset by the
controller until the causes that produce them are eliminated.
When one of these alarms appear proceed as follows:
-
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 pushing
-
controller display), then restart pushing the same button.
-
If the alarm persists call your local OMI distributor.
Quit pushing
-
6.5.3 Alarm table
IMPORTANT: ESA mode is NOT an alarm, please refer to Par. 6.0
Label
Meaning
(Pb1) Dew point probe
P1
alarm
(Pb2) Air inlet
temperature probe
P2
alarm Valid only if
CF05 =1
(Pb3) Ambient
P3
temperature probe
alarm
(Pb4) Refrigerant circuit
P4
suction temperature
probe alarm
Dew
Point
high
A1
temperature prealarm
(Pb1 probe)
Dew Point low
A2
temperature prealarm
(Pb1 probe)
High
inlet
air
temperature prealarm
A3
(Pb2 probe) Valid only
if CF05 =1
High ambient
A4
temperature pre-alarm
(Pb3 probe)
High refrigerant circuit
A5
suction temperature
prealarm (Pb4)
High/Low
pressure
AHP
safety switch (HP/LP)
alarm (1P1 switch)
(1Q2) Fan thermal
AtFA
protection alarm
Cod. 710.0159.01.00 Rev01 – 10.2012
button or wait for automatic quit.
button or wait for automatic quit.
Cause / Origin
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
General alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
General alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
General alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
General alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Dew Point temperature
Buzzer ON
higher than the presetted
value
General alarm icon lighted
( PB1 > AL23 )
Alarm code on display
Open collector / alarm relay ON
Dew Point temperature
Buzzer ON
lower than the presetted
value
General alarm icon lighted
( PB1 < AL20 )
Alarm code on display
Open collector / alarm relay ON
Inlet air temperature
Buzzer ON
higher than the presetted
value
General alarm icon lighted
( PB2 > AL26 )
Alarm code on display
Open collector / alarm relay ON
Ambient temperature
Buzzer ON
higher than the presetted
value
General alarm icon lighted
( PB3 > AL11 )
Alarm code on display
Open collector / alarm relay ON
Refrigerant circuit suction
Buzzer ON
temperature higher than
the presetted value
General alarm icon lighted
( PB4 > AL29 )
Alarm code on display
Open collector / alarm relay ON
Buzzer ON
High pressure switch
digital input activation
High pressure alarm icon lighted
Alarm code on display
Open collector / alarm relay ON
Buzzer ON
Digital
input
activation
General alarm icon lighted
Alarm code on display
button when "rSt" label is lighted (at reset done the
button for 3 sec. stopping the operation process (label OFF shown on
Controller status
Automatic
if the probe value recovers
If the alarm persists call your local OMI distributor
Automatic
if the probe value recovers
If the alarm persists call your local OMI distributor
Automatic
if the probe value recovers
If the alarm persists call your local OMI distributor
Automatic
if the probe value recovers
If the alarm persists call your local OMI distributor
Not necessary
Not necessary
Not necessary
Not necessary
Not necessary
Manual
Digital input deactivation then manual reset from Functions
menu.
Manual
Restart the (1Q2) thermal protection, then proceed with
manual reset from Functions menu.
If the alarm persists call your local OMI distributor
Reset
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