ding the dryer.
• Avoid air inlet temperature fl uctuations.
4.4 Stop
a) Stop the dryer 2 minutes aft er the air compressor stops or in any
case aft er interruption of the air fl ow;
b) make sure compressed air does not enter the dryer when the dryer
is disconnected or if an alarm occurs.
x
c) Press
: the POWER LED (2) turns yellow again;
&
d) Turn the MAIN SWITCH "
" to "O OFF" to switch the power
off .
Y
Wc version, close the water circuit with the dryer stopped.
5
Control
5.1 Control panel
Display
3
[
è
&
z
y
4
5
é
x
2
English
Reference
Name
1
MAIN SWITCH
2
POWER LED
ENERGY SAVING
3
LED
4
WARNING LED
5
DRAIN LED
Keypad mode
STANDARD
x
Switching on/off
ON/OFF BUTTON
z
Reset alarm/ warning Up
RESET BUTTON
é
Alarm/warning log
1
HISTORY BUTTON
y
Condensate drain
DRAIN BUTTON
* returns to STANDARD mode aft er 5 minutes.
PST 090-340
5.2 Operation
Description
Operation status
I ON = dryer powered;
With the MAIN SWITCH "
O OFF = dryer not powered.
red) three working conditions are possible::
Yellow = dryer powered.
Green = dryer operating.
Lit = dryer in energy saving
condition.
1
Off = no signal.
2
Flashing = alarm or warning.
3
Lit = drain open.
To switch from OFF to ON (and vice versa) press
!
MENU*
In OFF status the unit remains powered until the MAIN SWITCH"
&
" is turned to "O OFF"!
Confi rm
Y
To manage REMOTE OFF mode, remove the bridge between
terminals X4.0 and X4.10 (see par. 8.8) and connect the remote start/
stop switch (to be provided for by the customer).
In ON status, use the button with the following logic:
Down
DRYER STATUS
!
Out
Do not activate ON status (refrigeration compressor operating)
more than 10 times in one hour.
Energy saving function
In ON mode, operating conditions permitting, the dryer reduces energy
consumption by temporarily switching off the refrigeration compressor;
the ENERGY SAVING LED (3) comes on (see Control Panel).
Scheduled maintenance
Y
When the DISPLAY
and dew point, contact authorized assistance personnel for carrying out
scheduled maintenance indicated in par. 6.3 and for resetting the war-
ning code (see par. 5.4 in List of alarm/warnings).
z
Press
Condensate drain
Th ere are three operation modes:
a) INTEGRATED - draining controlled by the level sensor;
b) TIMED - check that the automatic condensate drainage system is
working properly.
Use manual drainage to check that condensate is not retained as this
&
" turned to "I ON" (dryer powe-
[
DRYER
POWER LED
STATUS
DISPLAY
OFF
Off
ON
Dew point
REMOTE OFF
r.OF
x
.
X4.0
X4.10
X4.0
ON
REMOTE OFF
è
(not for the model PST090 )
[
alternatively shows the Sr warning code
to cancel the warning for 24 hours.
(2)
Yellow
Green
Yellow
X4.10
3/6