ACT 1500-2500, User Manual

Page: 27 / 68

Technical description
ACT 600 – 5000
27 – EN
7.15.5 How an alarm is displayed
The alarm is an unusual event that always causes the dryer to switch OFF for the safety of the machine and
the operators.
When the alarm is active the led
flashes. If the alarm is memorized (it tripped but then it switched off by
itself) led is lighted (dryer stay OFF in any case).
When the led flashes the message and the active alarm/s appear in sequence on the display.
When the led is lighted, the message and the alarm/s that tripped and require to be reset appear
in sequence on the display.
The alarms are not automatically reset. To
RESET
the alarm the led must be lighted and the buttons
log
reset
must be pressed simultaneously for at least 3 seconds.
The dryer does not start up automatically after the alarms have been reset.
NOTE: the operator/maintenance technician must inspect the dryer and verify/solve the problem that
generated the service warning
.
Alarm Description
HP - High Pressure : the refrigerant high pressure safety pressure switch HPS tripped (note :
the pressure switch has a reset button)
LP - Low Pressure : the refrigerant low pressure safety pressure switch LPS tripped
COn - Compressor : the compressor’s protections and/or the reverse phase protector RPP
tripped
FAn - Fan : the fan protections tripped
Hdt - High Discharge Temperature : compressor discharge temperature beyond the safety
limit
Set T4> 100°C (212°F) delay 1 minute / Reset T4< 90°C (194°F)
ICE - ICE / freezing : temperature inside the exchanger (probe T1) is too low and causes the
condensate to freeze.
Set T1< -3°C (27°F) delay 1 minute / Reset T1> 0°C (32°F)
LCP - Low Condensing Pressure : condensing pressure too low
PF4 - Probe 4 Failure : failure probe 4
PFP - Probe Pressure Failure : failure condensing pressure trasducer BHP