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3.1.3 DISPLAY INDICATIONS
The controller is capable of recognizing certain types of anomalies in the drying circuit. In such cases, a message will blink on the
display, alternated to the current dew point value.
MESSAGE
(BLINKING)
CAUSE OUTPUTS ACTIONS
HtA
High dew point value
(delayed alarm)
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
Resettable by switching off the
dryer.
If problem persists call your local
ZEKS distributor.
Ht2
Very high dew point value
(immediate alarm)
PF1
PF2
Interruption or short circuit on the
PTC probe input line
Alarm output ON
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
Resettable by switching off the
dryer. May require replacing the
faulty probe.
If problem persists call your local
ZEKS distributor.
ESA
The automatic Energy saving
mode activated due to low load
Alarm output OFF
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
No action necessary.
Automatic Reset
ES2
ASt
Activated after repeated alarms
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
Call your local ZEKS distributor.
PCd
Glycol circuit malfunction
Alarm output ON
Refrig. Compressor output ON
Fan output ON
Drain cycle standard
Resettable by switching off the
dryer. See troubleshooting section.
If problem persists call your local
ZEKS distributor.
Cnd
High compressor output
temperature
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
No action necessary.
Automatic Reset
Note: PF1 has priority on all other messages.
3.1.4 REMOTE SIGNALING ALARM
The dryer control board is equipped with a terminal block for a remote alarm signal.
Proceed as follows to activate a remote alarm output:
1. Disconnect the dryer from electrical power supply, remove cover and left side panel.
2. Connect the alarm circuit to the terminal block (See PIC.2).
3.
Replace cover, left side panel and reconnect power.
Alarm Output electric features:
12V DC - 40mA on alarm,
0V on normal conditions.
PIC.2
Activation of the above function is at the User’s discretion. The User will purchase all necessary
installation material. Any operation which needs access to the dryer must be carried out by qualified
personnel.
