omi ED Series Instruction Manual page 27

s.r.l. s.r.l.
s.r.l. s.r.l.
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
Exit by pushing
-
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
-
controller display), then restart by pushing the same button.
- If the alarm persists call our Service Center.
Quit pushing
-
6.5.3 Advanced warning and alarm table
Label Meaning
(Pb1) Dew point probe
P1
alarm
(Pb2) Air inlet
P2
temperature probe
alarm
(Pb3) Room
P3
temperature probe
alarm
(Pb4) Refrigerant circuit
P4
suction temperature
probe alarm
Dew Point high
A1
temperature advanced
warning (Pb1 probe)
Dew Point low
A2
temperature advanced
warning (Pb1 probe)
High inlet air
A3
temperature advanced
warning (Pb2 probe)
Room temperature
A4
probe advanced
warning (Pb3 probe)
High refrigerant circuit
suction temperature
A5
advanced warning
(Pb4)
High pressure safety
AHP
switch (HP/LP) alarm
(1P1 switch)
(1Q2) Fan thermal
AtFA
protection alarm
23/89
button or wait for automatic exit.
button or wait for automatic quit.
Cause / Origin
Controller status
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
Main alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
Main alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
Main alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Missing, faulty probe or
Buzzer ON
resistance exceeding
Main alarm icon lighted
value
Alarm code on display
Open collector / alarm relay ON
Dew Point temperature
Buzzer ON
higher than the presetted
value
Main alarm icon lighted
( PB1 > AL23 )
Alarm code on display
Open collector / alarm relay ON
Dew Point temperature
Buzzer ON
lower than the presetted
value
Main alarm icon lighted
( PB1 < AL20 )
Alarm code on display
Open collector / alarm relay ON
Inlet air temperature
Buzzer ON
higher than the presetted
value
Main alarm icon lighted
( PB2 > AL26 )
Alarm code on display
Open collector / alarm relay ON
Ambient temperature
Buzzer ON
higher than the presetted
value
Main 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
Main 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
Main alarm icon lighted
Alarm code on display
Cod. 710.0103.01.01 – Rev.04 – 09.2012
button when "rSt" label is lighted.
button for 3 sec. stopping the operation process (label OFF shown on
Automatic
if the probe value recovers
If the alarm persists replace probe.
Automatic
if the probe value recovers
If the alarm persists replace probe.
Automatic
if the probe value recovers
If the alarm persists replace probe.
Automatic
if the probe value recovers
If the alarm persists replace probe.
Not necessary
Not necessary
Not necessary
Not necessary
Not necessary
Manual
Digital input deactivation then manual reset from
Function menu.
Manual
Restart the (1Q2) thermal protection, then proceed
with manual reset from Function menu.
If the alarm persists call our service centre.
ED – DXL AL ED ED ED
serie
Reset