250
4
English
To view the details of the event, press
x
:
ALx
1 Alarm code
2 Th
ousands of hours
3 Hours
4 Dew point
5 Evaporation temperature
6 Compressor discharge temperature
Scrollwith
z
and
é
.
5.3 Parameters
Accessing parameters
Press
z
and at the same time
é
: the keypad now operates in Pa-
rameters MENU mode and the parameters can be scrolled with
z
and
é
.
List of parameters
A1
Sets the unit of measure for dew point in °C or °F.
A2/A3
Total hours of dryer operation= 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
250
Mul = models
Note: if the C5 is set to = Mul in a monocooler dryer then
the warning ASE will occur. ASE is a warning for the mul-
ticooler models.
C7
Not available
C29
Must be set to “0”.
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
Not available
d1
Sets the seconds of condensate drain opening (if set in
TIMED mode).
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
, change with
z
and
é
,
then press
x
to confi rm.
Press
y
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),
[
display
the alarm code. In case of a Warning,
[
alternatively displays the
fault code and the dew point and WARNING LED comes on.
If an alarm occurs:
1) Identify and eliminate the cause;
2)press
z
to reset the alarm;
3) press
x
to restart the dryer.
If a warning without automatic reset occurs:
1) Identify and eliminate the cause;
2)press
z
to reset the warning.
List of alarm/warnings
HP
H
igh
P
ressure alarm
CP
Phases monitor alarm
LP
L
ow
P
ressure alarm
Ld
L
ow
D
ew Point alarm
Lt
L
ow Evaporation
T
emperature alarm
Ht
H
igh compressor Discharge
T
emperature alarm = T>248° F
(120°C)
dSE
D
ew Point
Se
nsor Warning
Th
e measured temperature must return within its normal
range.
Hd
H
igh
D
ew Point Warning
Automatic reset when the dew point = A6 - 4°F (2°C).
HSE
Discharge Temperature Sensor warning
Sr
Scheduled Maintenance warning
See par. 5.2 and 6.3
.
Summary of Contents for 250
Page 2: ......
Page 27: ...250 25 8 5 Exploded drawing 250 2 3 4 B1 9 6 12 15 B3 1 8 QS1 A B C D E ...
Page 28: ...250 26 8 6 Dimensional 250 i n c h e s mm c e n t e r o f g r a v i t y p o s i t i o n ...
Page 29: ...250 27 8 7 Refrigerant circuit 250 A1 ...
Page 30: ...250 28 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 31: ...250 29 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 32: ...250 30 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 33: ...250 31 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 34: ...250 32 8 8 Wiring diagram 230V 1Ph 60Hz 5x20 24V 1A T ...
Page 35: ...250 33 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 36: ...250 34 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 37: ...250 35 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 38: ...250 36 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 39: ...250 37 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 40: ...250 38 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 41: ...250 39 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 42: ...250 40 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 43: ...250 41 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 44: ...250 42 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 45: ...250 43 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 46: ...250 44 8 8 Wiring diagram 460V 3Ph 60Hz ...
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