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user must verify the wiring of the input terminals of the disconnecting
switch of the dryer.
4.3
Operation
• Leave the dryer on during the entire period the air compressor is
working;
• Th e dryer operates in automatic mode, therefore fi eld settings are
not required;
• In the event of unforeseen excess air fl ows, by-pass to avoid over-
loading the dryer.
• Avoid air inlet temperature fl uctuations.
4.4
Stop
• Stop the dryer 2 minutes aft er the air compressor stops or in any
case aft er interruption of the air fl ow;
• Make sure compressed air does not enter the dryer when the dryer
is disconnected or if an alarm occurs.
x
• press
: the POWER LED (2) turns yellow again;
&
• 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
3
Display
[
è
&
z
y
4
5
é
x
2
Reference
Name
I ON = dryer powered;
1
MAIN SWITCH
O OFF = dryer not powered
English
Reference
2
ENERGY SAVING
3
4
5
Keyboard mode
x
ON/OFF BUTTON
z
RESET BUTTON
é
HISTORY BUTTON
y
DRAIN BUTTON
*returns to STANDARD mode aft er 5 minutes.
5.2
Operation
1
Operation status
With the MAIN SWITCH
working conditions are possible:
DRYER
STATUS
1
OFF
Description
2
ON
3
REMOTE OFF
Name
Description
Yellow = dryer powered
POWER LED
Green = dryer operating
Lit = dryer in energy saving
LED
condition.
Off = no signal
WARNING LED
Flashing = Alarm or warning
DRAIN LED
Lit = Drain open
STANDARD
MENU*
Switching no/off
Confi rm
Reset alarm/warnigng
Up
Alarm/warning log
Down
Condensate drain
Out
&
turned to "I ON" (dryer powered) three
[
DISPLAY
POWER LED (2)
OFF
Yellow
Dew point
Green
r.OF
Yellow
To switch from OFF to ON turned to "I ON" (and vice versa) press
!
In OFF status the unit remains powered until the MAIN SWITCH
&
turned to "I OFF".
Y
To manage REMOTE OFF mode, remove the bridge be-
tween terminals X4.0 and X4.10 (see par. 8.8.) and connect
the remote start/stop switch(to be provided by the customer).
In ON status, use the button with the following logic:
X4.0
X4.10
DRYER STATUS
ON
!
Do not activate ON status (refrigeration compressor operating)
è
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
alternatively shows the Sr warning
code and dew point, contact authorized assistance personnel for carry-
ing out scheduled maintenance indicated in par. 6.3 and for resetting the
warning code (see par. 5.4 in List of alarm/warnings).
z
Press
to cancel the warning for 24 hours.
Condensate drain
Th ere are two operation modes:
• TIMED - check that the automatic condensate drainage system is
working properly.
Use manual drainage to check that condensate is not retained as this
is symptomatic of poor drainage.
Th is check of the timed drain opening (parameter d1).
Settings depends upon the operating conditions of the dryer and var-
ies the amount of condensate to be removed.
For standard dryer operating conditions, see the following table of
recommended settings:
Model
DRD265-1000
Parameter d1: time open in seconds for every 2 minutes of operation
• EXTERNAL - if there is an external drain (24VAC).
x
.
X4.0
X4.10
REMOTE OFF
Parameter d1
5
3
DRD265-1000
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