6.4 a
w
nomaly
arning
The controller is capable to recognize certain types of anomalies to the drying circuit. In such cases, an alarm message will blink on
the display, alternated to the current dew – point value.
MESSAGE
(BLINKING)
HtA
Ht2
LtA
PF1
ESA
ES2
ASt
Note: PF1 has priority on all other alarm messages.
r
emote signalling alarm
The dryer control board is equipped with a digital output for the remote signalling
alarm. This digital output is controlled by a relays configured as normally open:
when an alarm is detected, this relays closes a circuit.
Proceed as follows to activate a remote alarm output:
1.
The User must provide a signaller in compliance with output relays electri-
cal features (solenoid coil, light bulb, acoustic signaller, ...).
2.
Disconnect the dryer from electrical power supply, remove cover and left
side panel.
3.
Connect the signaller to the terminal blocks (See PIC.2).
Alarm Output relays electric features: 250VAC / 3A – AC 15 (Amp. Inductive)
6.5 b
eFore start up
Before starting the machine, make sure that all operating parameters correspond to the nominal data.
The dryer is supplied already tested and preset for normal operation, and it doesn't require any calibration. Nevertheless, it's neces-
sary to check the operating performances during the first working hours.
s
tart up
The operations specified below must be performed after the first start up and at each start up after a prolonged inactive period of
time due to maintenance operations, or any other reason.
1.
Make sure that all instructions contained in chapters INSTALLATION SITE and INSTALLATION have been respected.
2.
Check if by-pass is locked properly (if existent).
3.
Activate current supply and press the ON/OFF switch on the control panel for at least 1 second.
4.
Wait 5 to 10 minutes until machine has achieved its standard operating parameters.
5.
Slowly open the air outlet valve and successively open the air inlet valve.
6.
If existent, close the by-pass.
7.
Check if the condensate drainer is working properly. Check if all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power supply, use ON/OFF key to stop the dryer. Otherwise wait 10 minutes before
switching the dryer on again, in order to allow freon pression re-balance.
6.6 m
,
aintenance
troublesHooting and dismantling
CAUSE
Dew - point elevato
(allarme con ritardo)
Dew - point molto elevato
(allarme immediato)
Dew - point basso
Interruzione o corto circuito
della linea di ingresso della son-
da PTC
Energy saving attivo
Serie di allarmi ravvicinati
6. d
ryer
OUTPUT
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Discharge cycle standard
Alarm output ON
Refrig. Compressor output OFF
Fan output OFF
Discharge cycle standard
Alarm output ON
Refrig. Compressor output OFF
Fan output OFF
Discharge cycle standard
Alarm output OFF
Refrig. Compressor output OFF
Fan output OFF
Discharge cycle standard
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Discharge cycle standard
.
18
AZIONI
Resettable by switching off the control bo-
ard when dew-point returns to preset range.
If it persists call our Service Centre.
Automatic reset when dew-point returns to
preset range.
If it persists call our Service Centre.
Resettable by switching off the control bo-
ard and replacing the faulty probe.
Call our Service Centre.
No action necessary.
Automatic Reset
call our Service Centre.