FRIULAIR ACT ES 20-500, User Maintenance Manual And Spare Parts

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Technical description
30 EN ACT ES 3 160
7.12.4 How a service warning is displayed
A service warning is an exceptional event and requires the attention of the operator/service technician. The dryer will
not be stopped.
When a service warning is active, the
Led flashes.
When a service warning is no longer active but not reset yet (so it has been stored) Led is continuously on.
In both cases the display shows the dew point temperature and the service warnings which are active or which are no
longer active but not yet reset.
Service warnings are NOT automatically reset.
To
RESET the service warning, the
+ buttons for three seconds. Only the stored service warning will be reset. Service warnings which
are still active continue to be indicated by the Led flashing.
NOTE: the operator/service technician must check the dryer and eliminate the problem that caused the service
warning.
Service warning Description
HdP High dew point: dew point too high, higher than the adjusted HdS value
LdP Low dew point: dew point too low
Setting T1< -1°C (30°F) delay five minutes / reset T1> -0.5°C (31°F)
SrV - Service: maintenance service time expired SrV
7.12.5 How an alarm is displayed
An alarm is an exceptional event which, to avert damage from to the machine and the operator, always leads to the
dryer stop.
When an alarm is active, the
LED flashes.
When an alarm is no longer active but not reset yet (so it has been stored) Led is continuously on (in any case,
the dryer remains OFF).
In both cases the display shows
and the alarms which are active or which are no longer active but not yet reset.
Alarms are NOT automatically reset.
To
RESET the alarm, the Led must be continuously on (not flashing), keep pressed simultaneously +
buttons for three seconds. Only the stored alarm will be reset. Alarms which are still active continue to be
indicated by the Led flashing.
The dryer will start automatically subsequent to the reset of the alarms.
NOTE: the operator/service technician must check the dryer and eliminate the problem that caused the alarm.
Alarm Description
LP Low pressure: the refrigerant low-pressure switch LPS has tripped.
Hdt High outlet temperature: compressor outlet temperature outside the safety limit
Setting T2> 110°C (230°F) delay one minute / reset T2< 90°C (194°F)
ICE - ICE / Icing: Temperature in the exchanger (probe T1) is too low and leads to icing of the
condensate.
Setting T1< -2°C (28°F) delay one minute / reset T1> 0°C (32°F)
toC Too many Cycles : compressor has been cycled On/OFF unusually too often (stopped more
than 5 times before reaching its minimum ON time)
PF1 Probe 1 failure: failure probe T1
PF2 Probe 2 failure: failure probe T2
Led must be continuously on (not flashing), keep pressed simultaneously