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To change operation mode, use the parameter d3 (see par. 5.3 in List
of parameters).
Y
Only set the EXTERNAL mode in absence of the solenoid valve.
Otherwise the relative coil could become damaged.
Alarm log
Contains the descriptions of the last alarms (max. 8).
é
Press
for 5 seconds: the keypad now operates in Alarm MENU
z
mode and the events can be scrolled with
Every event is displayed with "ALx" (x=1-8).
AL1 = most recent event.
If there are no events "---" appears.
x
To view the details of the event, press
:
ALx
1 Alarm code
2 Th ousands of hours
3 Hours
4 Dew point
5 Evaporation temperature
6 Compressor discharge temperature
z
é
Scrollwith
and
.
5.3
Parameters
Accessing parameters
z
é
Press
and at the same time
: the keypad now operates in Pa-
rameters MENU mode and the parameters can be scrolled with
é
and
.
List of parameters
A1
Sets the unit of measure for dew point in °C or °F.
A2/A3
Total hours of dryer operation= A3x1000+A2(display only).
A4/A5
Like A2/A3 but for hours of refrigeration compressor opera-
tion.
A6
Sets Hd Warning intervention temperature (see par. 5.4 in
List of alarm/warnings).
A7
Inhibits remote OFF command.
b1
Sets the dryer address for serial communications.
b2
Sets the serial communication speed
b3
Not available
b5
Refrigerant evaporation temperature
b7
Not available
b8
Compressor discharge (delivery) temperature
b9
Not available
C5
Dryer model: Mon = models
é
Note: if the C5 is set to = Mul in a monocooler dryer then
and
.
the warning ASE will occur. ASE is a warning for the mul-
ticooler models.
C7
Sets compressor operation model:
- CYC = CYCLING
- CON = CONTINUOUS (energy saving disabled).
C36
Operating logic of the alarm/machine status relay.
0 = relay energised when dryer is running, de-energised if
in warning/alarm status.
1 = relay de-energised when dryer is running, energised if
in warning/alarm status.
2 = relay de-energised when dryer is running, energised
in warning/alarm status.
C37
% energy saving
d1
Sets the seconds of condensate drain opening (if set in
TIMED mode).
z
d2
Like d1, but for seconds closed.
d3
Sets condensate drain operation mode:
- tIM = TIMED
- Con = EXTERNAL (24VAC)
Changing parameters
Aft er displaying the parameter, press
x
then press
to confi rm.
y
Press
to return to STANDARD mode.
5.4
Alarms and Warnings
Alarms cause the dryer to switch off .
Warnings only cause a signal.
In case of Alarm or Dew Point Sensor Warning (dSE),
the alarm code. In case of a Warning,
fault code and the dew point and WARNING LED comes on.
DRD265-1200
Mul = models
DRD1400-3000
(energy saving enabled).
x
z
, change with
and
[
[
alternatively displays the
If an alarm occurs:
1) Identify and eliminate the cause;
z
2)press
to reset the alarm;
x
3) press
to restart the dryer.
If a warning without automatic reset occurs:
1) Identify and eliminate the cause;
z
2)press
to reset the warning.
List of alarm/warnings
HP
High Pressure alarm
Compressor Thermal Protection Alarm
CP
/ Phases monitor alarm
LP
Low Pressure alarm
Ld
Low Dew Point alarm
Lt
Low Evaporation Temperature alarm
High compressor Discharge Temperature alarm = T>248° F
Ht
(120°C)
Refrgerant Temperature Sensor Warning
rSE
Switches to CONTINUOUS mode
Condensate Drain Warning
drE
Condensate drainage switches to TIMED mode.
Dew Point Sensor Warning
dSE
Th e measured temperature must return within its normal
range.
High Dew Point Warning
Hd
Automatic reset when the dew point = A6 - 4°F (2°C).
HSE
Discharge Temperature Sensor warning
é
Scheduled Maintenance warning
Sr
,
See par. 5.2 and 6.3
display
4
DRD265-1000
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